CC1150-RTY1 [TI]
Low Power Sub-1 GHz RF Transmitter; 低功耗低于1GHz的射频发射器
| 型号： | CC1150-RTY1 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | Low Power Sub-1 GHz RF Transmitter |
| 文件： | 总67页 (文件大小：1400K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CC1150
CC1150
Low Power Sub-1 GHz RF Transmitter
Applications
• Ultra low power UHF wireless transmitters
• Operating in the 315/433/868/915 MHz
ISM/SRD bands
• AMR – Automatic Meter Reading
• Consumer Electronics
• Low power telemetry
• Home and building automation
• Wireless alarm and security systems
• Industrial monitoring and control
• Wireless sensor networks
• RKE – Remote Keyless Entry
Product Description
The CC1150 is a low cost true single chip UHF
transmitter designed for very low power
wireless applications. The circuit is mainly
intended for the ISM (Industrial, Scientific and
Medical) and SRD (Short Range Device)
frequency bands at 315, 433, 868 and 915
MHz, but can easily be programmed for
operation at other frequencies in the 300-348
MHz, 400-464 MHz and 800-928 MHz bands.
CC1150 is part of Chipcon’s SmartRF®04
technology platform based on 0.18 µm CMOS
technology.
The RF transmitter is integrated with a highly
configurable baseband modulator. The
modulator supports various modulation
formats and has a configurable data rate up to
500 kBaud. The CC1150 provides extensive
hardware support for packet handling, data
buffering and burst transmissions.
The main operating parameters and the 64-
byte transmit FIFO of CC1150 can be controlled
via an SPI interface. In a typical system, the
CC1150 will be used together with a micro-
controller and
components.
a
few additional passive
Key Features
•
Small size (QLP 4x4 mm package, 16
pins)
•
Very
few
external
components:
Completely on-chip frequency synthesizer,
no external filters needed
•
•
True single chip UHF RF transmitter
Frequency bands: 300-348 MHz, 400-464
MHz and 800-928 MHz
Programmable data rate up to 500 kBaud
Low current consumption
Programmable output power up to +10
dBm for all supported frequencies
Programmable baseband modulator
Ideal for multi-channel operation
•
•
Configurable packet handling hardware
Suitable for frequency hopping systems
due to a fast settling frequency synthesizer
Optional Forward Error Correction with
interleaving
•
•
•
•
•
64-byte TX data FIFO
•
•
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Page 1 of 60
CC1150
Features (continued from front page)
•
Suited for systems compliant with EN 300
220 and FCC CFR Part 15
•
•
•
•
OOK and flexible ASK shaping supported
2-FSK, GFSK and MSK supported
Optional automatic whitening of data
Support for asynchronous transparent
transmit mode for backwards compatibility
•
Many powerful digital features allow a
high-performance RF system to be made
using an inexpensive microcontroller
Efficient SPI interface: All registers can be
programmed with one “burst” transfer
Integrated analog temperature sensor
Lead-free “green” package
Flexible support for packet oriented
systems: On chip support for sync word
insertion, flexible packet length and
automatic CRC handling
•
with
existing
radio
communication
protocols
•
•
•
Abbreviations
Abbreviations used in this data sheet are described below.
ADC
AFC
AGC
AMR
ASK
BER
CCA
CFR
CRC
CW
Analog to Digital Converter
Automatic Frequency Compensation
Automatic Gain Control
Automatic Meter Reading
Amplitude Shift Keying
NRZ
OOK
PA
Non Return to Zero (Coding)
On-Off-Keying
Power Amplifier
PCB
PD
Printed Circuit Board
Power Down
Bit Error Rate
PER
PLL
Packet Error Rate
Phase Locked Loop
Power-On Reset
Clear Channel Assessment
Code of Federal Regulations
Cyclic Redundancy Check
Contionus Wave (Unmodulated Carrier)
Direct Current
POR
QLP
QPSK
RC
Quad Leadless Package
Quadrature Phase Shift Keying
Resistor-Capacitor
RC Oscillator
DC
EIRP
ESR
FCC
FEC
FIFO
FSK
GFSK
ISM
Equivalent Isotropic Radiated Power
Equivalent Series Resistance
Federal Communications Commission
Forward Error Correction
First-In-First-Out
RCOSC
RF
Radio Frequency
RSSI
RX
Received Signal Strength Indicator
Receive, Receive Mode
Surface Aqustic Wave
Surface Mount Device
Signal to Noise Ratio
Serial Peripheral Interface
Short Range Devices
To Be Defined
SAW
SMD
SNR
SPI
Frequency Shift Keying
Gaussian shaped Frequency Shift Keying
Industrial, Scientific, Medical
Inductor-Capacitor
LC
SRD
TBD
TX
LO
Local Oscillator
LSB
LQI
Least Significant Byte
Transmit, Transmit Mode
Ultra High frequency
Voltage Controlled Oscillator
Crystal Oscillator
Link Quality Indicator
UHF
VCO
XOSC
XTAL
MCU
MSK
N/A
Microcontroller Unit
Minimum Shift Keying
Not Applicable
Crystal
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CC1150
Table Of Contents
APPLICATIONS...........................................................................................................................................1
PRODUCT DESCRIPTION.........................................................................................................................1
KEY FEATURES ..........................................................................................................................................1
FEATURES (CONTINUED FROM FRONT PAGE)................................................................................2
ABBREVIATIONS...............................................................................................................................................2
TABLE OF CONTENTS ..............................................................................................................................3
1
2
3
4
4.1
4.2
4.3
4.4
4.5
4.6
4.7
5
ABSOLUTE MAXIMUM RATINGS...........................................................................................................5
OPERATING CONDITIONS......................................................................................................................5
GENERAL CHARACTERISTICS ...............................................................................................................5
ELECTRICAL SPECIFICATIONS...............................................................................................................6
CURRENT CONSUMPTION .....................................................................................................................6
RF TRANSMIT SECTION ........................................................................................................................7
CRYSTAL OSCILLATOR.........................................................................................................................8
FREQUENCY SYNTHESIZER CHARACTERISTICS.....................................................................................8
ANALOG TEMPERATURE SENSOR .........................................................................................................9
DC CHARACTERISTICS .........................................................................................................................9
POWER ON RESET .................................................................................................................................9
PIN CONFIGURATION ..........................................................................................................................10
CIRCUIT DESCRIPTION........................................................................................................................11
APPLICATION CIRCUIT........................................................................................................................11
BIAS RESISTOR ...................................................................................................................................11
BALUN AND RF MATCHING ................................................................................................................11
CRYSTAL ............................................................................................................................................12
REFERENCE SIGNAL............................................................................................................................12
ADDITIONAL FILTERING......................................................................................................................12
POWER SUPPLY DECOUPLING..............................................................................................................12
ANTENNA CONSIDERATIONS ..............................................................................................................13
PCB LAYOUT RECOMMENDATIONS....................................................................................................15
CONFIGURATION OVERVIEW ..............................................................................................................16
CONFIGURATION SOFTWARE ..............................................................................................................17
4-WIRE SERIAL CONFIGURATION AND DATA INTERFACE ...................................................................18
6
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
8
9
10
10.1 CHIP STATUS BYTE ............................................................................................................................19
10.2 REGISTER ACCESS ..............................................................................................................................20
10.3 SPI READ ...........................................................................................................................................20
10.4 COMMAND STROBES ..........................................................................................................................20
10.5 FIFO ACCESS .....................................................................................................................................21
10.6 PATABLE ACCESS............................................................................................................................22
11
MICROCONTROLLER INTERFACE AND PIN CONFIGURATION ...............................................................22
11.1 CONFIGURATION INTERFACE..............................................................................................................22
11.2 GENERAL CONTROL AND STATUS PINS ..............................................................................................22
11.3 OPTIONAL RADIO CONTROL FEATURE ...............................................................................................23
12
13
DATA RATE PROGRAMMING...............................................................................................................23
PACKET HANDLING HARDWARE SUPPORT .........................................................................................24
13.1 DATA WHITENING...............................................................................................................................24
13.2 PACKET FORMAT................................................................................................................................25
13.3 PACKET HANDLING IN TRANSMIT MODE............................................................................................26
13.4 PACKET HANDLING IN FIRMWARE......................................................................................................26
14
MODULATION FORMATS.....................................................................................................................27
14.1 FREQUENCY SHIFT KEYING................................................................................................................27
14.2 MINIMUM SHIFT KEYING....................................................................................................................27
14.3 AMPLITUDE MODULATION .................................................................................................................28
15
FORWARD ERROR CORRECTION WITH INTERLEAVING........................................................................28
15.1 FORWARD ERROR CORRECTION (FEC)...............................................................................................28
15.2 INTERLEAVING ...................................................................................................................................28
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CC1150
16
RADIO CONTROL ................................................................................................................................30
16.1 POWER ON START-UP SEQUENCE........................................................................................................31
16.2 CRYSTAL CONTROL............................................................................................................................31
16.3 VOLTAGE REGULATOR CONTROL.......................................................................................................32
16.4 ACTIVE MODE ....................................................................................................................................32
16.5 TIMING ...............................................................................................................................................32
17
18
19
DATA FIFO ........................................................................................................................................33
FREQUENCY PROGRAMMING ..............................................................................................................34
VCO...................................................................................................................................................34
19.1 VCO AND PLL SELF-CALIBRATION ...................................................................................................34
20
21
VOLTAGE REGULATORS .....................................................................................................................35
OUTPUT POWER PROGRAMMING ........................................................................................................35
21.1 SHAPING AND PA RAMPING ...............................................................................................................36
22
23
GENERAL PURPOSE / TEST OUTPUT CONTROL PINS ...........................................................................37
ASYNCHRONOUS AND SYNCHRONOUS SERIAL OPERATION ................................................................39
23.1 ASYNCHRONOUS SERIAL OPERATION.................................................................................................39
23.2 SYNCHRONOUS SERIAL OPERATION ...................................................................................................39
24
SYSTEM CONSIDERATIONS AND GUIDELINES......................................................................................39
24.1 SRD REGULATIONS............................................................................................................................39
24.2 FREQUENCY HOPPING AND MULTI-CHANNEL SYSTEMS.....................................................................40
24.3 WIDEBAND MODULATION NOT USING SPREAD SPECTRUM.................................................................40
24.4 DATA BURST TRANSMISSIONS............................................................................................................41
24.5 CONTINUOUS TRANSMISSIONS ...........................................................................................................41
24.6 LOW COST SYSTEMS ..........................................................................................................................41
24.7 BATTERY OPERATED SYSTEMS ..........................................................................................................41
24.8 INCREASING OUTPUT POWER .............................................................................................................41
25
CONFIGURATION REGISTERS ..............................................................................................................42
25.1 CONFIGURATION REGISTER DETAILS .................................................................................................45
25.2 STATUS REGISTER DETAILS.................................................................................................................55
26
PACKAGE DESCRIPTION (QLP 16)......................................................................................................57
26.1 RECOMMENDED PCB LAYOUT FOR PACKAGE (QLP 16).....................................................................57
26.2 SOLDERING INFORMATION..................................................................................................................57
27
28
REFERENCES.......................................................................................................................................58
GENERAL INFORMATION ....................................................................................................................59
28.1 DOCUMENT HISTORY .........................................................................................................................59
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CC1150
1
Absolute Maximum Ratings
Under no circumstances must the absolute maximum ratings given in Table 1 be violated. Stress
exceeding one or more of the limiting values may cause permanent damage to the device.
Caution!
ESD
sensitive
device.
Precaution should be used when handling
the device in order to prevent permanent
damage.
Parameter
Min
Max
3.6
Units
Condition
Supply voltage
–0.3
V
V
All supply pins must have the same voltage
Voltage on any digital pin
–0.3
VDD+0.3
max 3.6
2.0
Voltage on the pins RF_P, RF_N
and DCOUPL
–0.3
V
Voltage ramp-up
Input RF level
120
+10
150
kV/µs
dBm
°C
Storage temperature range
Solder reflow temperature
ESD
–50
260
According to IPC/JEDEC J-STD-020C
°C
<500
V
According to JEDEC STD 22, method A114,
Human Body Model
Table 1: Absolute Maximum Ratings
2
Operating Conditions
The operating conditions for CC1150 are listed Table 2 in below.
Parameter
Min
-40
1.8
Max
85
Unit
°C
Condition
Operating temperature
Operating supply voltage
3.6
V
All supply pins must have the same voltage
Table 2: Operating Conditions
3
General Characteristics
Parameter
Min
300
400
800
1.2
1.2
26
Typ
Max
348
464
928
500
250
500
Unit
MHz
Condition/Note
Frequency range
MHz
MHz
Data rate
kBaud
kBaud
kBaud
2-FSK
GFSK, OOK and ASK
(Shaped) MSK (also known as differential offset
QPSK)
Optional Manchester encoding (the data rate in kbps
will be half the baud rate)
Table 3: General Characteristics
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CC1150
4
Electrical Specifications
4.1 Current Consumption
Tc = 25°C, VDD = 3.0 V if nothing else stated. All measurement results are obtained using the CC1150EM reference
design ([1] and [2]).
Parameter
Min Typ Max Unit Condition
Current consumption
200
222
1.1
7.7
nA Voltage regulator to digital part off, register values lost (SLEEP
state)
Voltage regulator to digital part on, all other modules in power
down (XOFF state)
µA
mA Only voltage regulator to digital part and crystal oscillator running
(IDLE state)
mA Only the frequency synthesizer running (FSTXON state). This
current consumptions also representative for the other
intermediate states when going from IDLE until reaching TX, and
frequency calibration states
Current consumption,
315 MHz
25.6
14.1
mA Transmit mode, +10 dBm output power (0xC4)
Transmit mode, 0 dBm output power (0x60)
See more in section 21 and DN012 [3]
mA Transmit mode, +10 dBm output power (0xC2)
Transmit mode, 0 dBm output power (0x60)
Current consumption,
433 MHz
26.1
14.6
See more in section 21 and DN012 [3]
mA Transmit mode, +10 dBm output power (0xC3)
Transmit mode, 0 dBm output power (0x60)
Current consumption,
868 MHz
29.3
15.5
See more in section 21 and DN012 [3]
mA Transmit mode, +10 dBm output power (0xC0)
Transmit mode, 0 dBm output power (0x50)
Current consumption,
915 MHz
29.3
15.2
See more in section 21 and DN012 [3]
Table 4: Electrical Specifications
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Page 6 of 60
CC1150
4.2 RF Transmit Section
Tc = 25°C, VDD = 3.0 V, if nothing else stated. All measurement results are obtained using the CC1150EM reference
design ([1] and [2]).
Parameter
Min
Typ
Max
Unit
Condition/Note
Differential load
impedance
Differential impedance as seen from the RF-port (RF_P and
RF_N) towards the antenna. Follow the CC1150EM reference
design ([1] and [2]) available from the TI website.
315 MHz
122 + j31
116 + j41
86.5 + j43
Ω
Ω
433 MHz
868/915 MHz
Ω
Output power,
highest setting
+10
dBm
Output power is programmable, and full range is available across
all frequency bands. Output power may be restricted by regulatory
limits. See also Application Note AN039 [4] and Design Note
DN006 [5].
Delivered to a 50 Ω single-ended load via CC1150 EM reference
design ([1] and [2]) RF matching network. Maximum output power
can be increased 1-2 dB by using wire-wound inductors instead of
multilayer inductors in the balun and filter circuit for the 868/915
MHz band, see more in DN017 [6].
Output power,
lowest setting
–30
dBm
Output power is programmable, and full range is available across
all frequency bands.
Delivered to a 50 Ω single-ended load via CC1150 EM reference
design ([1] and [2]) RF matching network
Spurious emissions
and harmonics,
433/868 MHz
–36
–54
–30
dBm
dBm
dBm
25 MHz - 1 GHz
47-74, 87.5 - 118, 174 - 230, 470 - 862 MHz
Otherwise above 1 GHz
Note that close-in spurs vary with centre frequency and limits the
frequencies and output power level which the CC1150 can operate
at without violating regulatory restrictions, see more in AN039 [4].
See also section 7.5 for information regarding additional filtering.
Spurious emissions,
315/915 MHz
–49.2
–41.2
–20
dBm
EIRP
<200 µV/m at 3 m below 960 MHz.
dBm
EIRP
<500 µV/m at 3 m above 960 MHz
Harmonics 315 MHz
dBc
2nd, 3rd and 4th harmonic when the output power is maximum 6
mV/m at 3 m (-19.6 dBm EIRP)
–41.2
–20
dBm
dBc
dBm
Bits
5
th harmonic
Harmonics 915 MHz
TX latency
2nd harmonic with +10 dBm output power
3rd, 4th and 5th harmonic
–41.2
8
Serial operation. Time from sampling the data on the transmitter
data input pin until it is observed on the RF output ports.
Table 5: RF Transmit Parameters
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Page 7 of 60
CC1150
4.3
Crystal Oscillator
Tc = 25°C, VDD = 3.0 V if nothing else is stated. All measurement results obtained using the CC1150EM reference
design ([1] and [2]).
Parameter
Min
Typ
26
Max
Unit
MHz
ppm
Condition/Note
Crystal frequency
Tolerance
26
27
±40
This is the total tolerance including a) initial tolerance, b) aging
and c) temperature dependence.
The acceptable crystal tolerance depends on RF frequency and
channel spacing / bandwidth
Load capacitance
ESR
10
13
20
pF
Ω
Simulated over operating conditions
100
Start-up time
150
µs
Measured on the CC1150EM reference design ([1] and [2]). This
parameter is to a large degree crystal dependent.
Table 6: Crystal Oscillator Parameters
4.4 Frequency Synthesizer Characteristics
Tc = 25°C, VDD = 3.0 V if nothing else is stated. All measurement results obtained using the CC1150EM reference design
([1] and [2]).
Parameter
Min
Typ
Max
Unit
Hz
Condition/Note
Programmed
frequency resolution
397
FXOSC
/
412
26 MHz-27 MHz crystals. The resolution (in Hz) is equal
for all frequency bands.
216
Synthesizer frequency
tolerance
±40
ppm
Given by crystal used. Required accuracy (including
temperature and aging) depends on frequency band and
channel bandwidth / spacing.
RF carrier phase noise
RF carrier phase noise
RF carrier phase noise
RF carrier phase noise
RF carrier phase noise
RF carrier phase noise
RF carrier phase noise
RF carrier phase noise
PLL turn-on / hop time
–82
–86
–90
–98
dBc/Hz @ 50 kHz offset from carrier, carrier at 868 MHz
dBc/Hz @ 100 kHz offset from carrier, carrier at 868 MHz
dBc/Hz @ 200 kHz offset from carrier, carrier at 868 MHz
dBc/Hz @ 500 kHz offset from carrier, carrier at 868 MHz
dBc/Hz @ 1 MHz offset from carrier, carrier at 868 MHz
dBc/Hz @ 2 MHz offset from carrier, carrier at 868 MHz
dBc/Hz @ 5 MHz offset from carrier, carrier at 868 MHz
dBc/Hz @ 10 MHz offset from carrier, carrier at 868 MHz
–106
–113
–119
–127
88.4
85.1
694
88.4
Time from leaving the IDLE state until arriving in the
FSTXON or TX state, when not performing calibration.
Crystal oscillator running.
µs
PLL calibration time
18739
721
XOSC
cycles
Calibration can be initiated manually or automatically
before entering or after leaving TX.
721
Min/typ/max time is for 27/26/26 MHz crystal frequency.
µs
Table 7: Frequency Synthesizer Parameters
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Page 8 of 60
CC1150
4.5 Analog Temperature Sensor
Tc = 25°C, VDD = 3.0 V if nothing else is stated. Note that it is necessary to write 0xBF to the PTEST register to use the
analog temperature sensor in the IDLE state.
Parameter
Min
Typ
Max
Unit
Condition/Note
0.651
0.747
0.847
0.945
2.45
V
V
V
V
Output voltage at –40°C
Output voltage at 0°C
Output voltage at +40°C
Output voltage at +80°C
Temperature coefficient
mV/°C Fitted from –20°C to +80°C
Absolute error in calculated
temperature
–2 *
2 *
°C
From –20°C to +80°C when using 2.45 mV / °C,
after 1-point calibration at room temperature
* Indicated minimum and maximum error with 1-
point calibration is based on simulated values for
typical process parameters
Current consumption
0.3
mA
increase when enabled
Table 8: Analog Temperature Sensor Parameters
4.6 DC Characteristics
Tc = 25°C if nothing else stated.
Digital Inputs/Outputs
Logic "0" input voltage
Logic "1" input voltage
Logic "0" output voltage
Logic "1" output voltage
Logic "0" input current
Logic "1" input current
Min
Max
0.7
Unit
V
Condition
0
VDD-0.7
0
VDD
0.5
VDD
–1
V
V
For up to 4 mA output current
For up to 4 mA output current
Input equals 0 V
VDD-0.3
N/A
V
µA
µA
N/A
1
Input equals VDD
Table 9: DC Characteristics
4.7 Power on Reset
For proper Power-On-Reset functionality, the power supply must comply with the requirements in
Table 10 below. Otherwise, the chip should be assumed to have unknown state until transmitting
an SRES strobe over the SPI interface. See section 16.1 on page 31 for a description of the
recommended start up sequence after turning power on.
Parameter
Min Typ Max Unit Condition/Note
Power-up ramp-up time
Power off time
5
ms
ms
From 0 V until reaching 1.8 V
1
Minimum time between power-on and power-off
Table 10: Power-on Reset Requirements
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Page 9 of 60
CC1150
5
Pin Configuration
The CC1150 pin-out is shown in Figure 1 and Table 11.
16 15 14 13
SCLK 1
SO (GDO1) 2
DVDD 3
12 AVDD
11 RF_N
10 RF_P
DCOUPL 4
9
CSn
GND
Exposed die
attach pad
5
6
7
8
Figure 1: Pinout Top View
Note: The exposed die attach pad must be connected to a solid ground plane as this is the main
ground connection for the chip.
Pin # Pin name
Pin type
Description
1
2
Digital Input
Digital Output
Serial configuration interface, clock input.
Serial configuration interface, data output.
Optional general output pin when CSnis high.
SCLK
SO (GDO1)
3
4
Power (Digital)
Power (Digital)
1.8 V - 3.6 V digital power supply for digital I/O’s and for the digital core
voltage regulator.
DVDD
1.6 V - 2.0 V digital power supply output for decoupling.
DCOUPL
NOTE: This pin is intended for use with the CC1150 only. It can not be used
to provide supply voltage to other devices.
5
6
7
8
Analog I/O
Power (Analog)
Analog I/O
Digital I/O
Crystal oscillator pin 1, or external clock input.
1.8 V - 3.6 V analog power supply connection.
Crystal oscillator pin 2.
XOSC_Q1
AVDD
XOSC_Q2
GDO0
Digital output pin for general use:
•
•
•
•
Test signals
FIFO status signals
Clock output, down-divided from XOSC
Serial input TX data
(ATEST)
Also used as analog test I/O for prototype/production testing.
Serial configuration interface, chip select.
Positive RF output signal from PA.
9
Digital Input
RF I/O
CSn
10
11
12
13
14
15
16
RF_P
RF_N
AVDD
AVDD
RBIAS
DGUARD
SI
RF I/O
Negative RF output signal from PA.
Power (Analog)
Power (Analog)
Analog I/O
Power (Digital)
Digital Input
1.8 V - 3.6 V analog power supply connection.
1.8 V - 3.6 V analog power supply connection.
External bias resistor for reference current .
Power supply connection for digital noise isolation.
Serial configuration interface, data input.
Table 11: Pinout Overview
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Page 10 of 60
CC1150
6
Circuit Description
RADIO CONTROL
SCLK
RF_P
FREQ
SYNTH
SO (GDO1)
SI
PA
RF_N
CSn
GDO0 (ATEST)
BIAS
XOSC
RBIAS XOSC_Q1 XOSC_Q2
Figure 2: CC1150 Simplified Block Diagram
well as clocks for the digital part.
A simplified block diagram of CC1150 is shown
in Figure 2.
A 4-wire SPI serial interface is used for
configuration and data buffer access.
The CC1150 transmitter is based on direct
synthesis of the RF frequency. The frequency
synthesizer includes a completely on-chip LC
VCO.
The digital baseband includes support for
channel configuration, packet handling and
data buffering.
A crystal is to be connected to XOSC_Q1 and
XOSC_Q2. The crystal oscillator generates the
reference frequency for the synthesizer, as
7
Application Circuit
Only a few external components are required
for using the CC1150. The recommended
application circuits are shown in Figure 4 and
Figure 5. The external components are
described in Table 13, and typical values are
given in Table 14.
7.1 Bias resistor
The bias resistor R141 is used to set an
accurate bias current.
7.2 Balun and RF matching
The components between the RF_N/RF_P
pins and the point where the two signals are
joined together (C111, C101, L101 and L111
for the 315/433 MHz design. L101, L111,
C101, L102, C111, C102 and L112 for the
868/915 MHz reference design) form a balun
that converts the differential RF signal on
CC1150 to a single-ended RF signal. C104 is
needed for DC blocking. Together with an
appropriate LC filter network, the balun
components also transform the impedance to
match a 50 Ω antenna (or cable). C105
provides DC blocking and is only needed if
there is a DC path in the antenna. For the
868/915
MHz
reference
design,
this
component may also be used for additional
filtering, see section 7.5 below.
Suggested values for 315 MHz, 433 MHz and
868/915 MHz are listed in Table 14.
The balun and LC filter component values and
their placement are important to achieve
optimal
recommended to follow the CC1150EM
reference design ([1] and [2]). Gerber files and
schematics for the reference designs are
available for download from the TI website.
performance.
It
is
highly
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Page 11 of 60
CC1150
7.3 Crystal
A crystal in the frequency range 26-27 MHz
must be connected between the XOSC_Q1
and XOSC_Q2 pins. The oscillator is designed
for parallel mode operation of the crystal. In
addition, loading capacitors (C51 and C71) for
the crystal are required. The loading capacitor
values depend on the total load capacitance,
CL, specified for the crystal. The total load
capacitance seen between the crystal
terminals should equal CL for the crystal to
oscillate at the specified frequency.
XOSC_Q1
XOSC_Q2
XTAL
C51
C71
Figure 3: Crystal Oscillator Circuit
The crystal oscillator is amplitude regulated.
This means that a high current is used to start
up the oscillations. When the amplitude builds
up, the current is reduced to what is necessary
to maintain approximately 0.4 Vpp signal
swing. This ensures a fast start-up, and keeps
the drive level to a minimum. The ESR of the
crystal should be within the specification in
order to ensure a reliable start-up (see section
1
CL =
+ Cparasitic
1
1
+
C51 C71
The parasitic capacitance is constituted by pin
input capacitance and PCB stray capacitance.
Total parasitic capacitance is typically 2.5 pF.
4.3 on page 8).
The initial tolerance, temperature drift, aging
and load pulling should be carefully specified
in order to meet the required frequency
accuracy in a certain application.
The crystal oscillator circuit is shown in Figure
3. Typical component values for different
values of CL are given in Table 12.
Component
C51
CL= 10 pF
15 pF
CL=13 pF
22 pF
CL=16 pF
27 pF
C71
15 pF
22 pF
27 pF
Table 12: Crystal Oscillator Component Values
7.4 Reference signal
The chip can alternatively be operated with a
reference signal from 26 to 27 MHz instead of
a crystal. This input clock can either be a full-
swing digital signal (0 V to VDD) or a sine
wave of maximum 1 V peak-peak amplitude.
The reference signal must be connected to the
XOSC_Q1 input. The sine wave must be
connected to XOSC_Q1 using serial
capacitor. The XOSC_Q2 line must be left un-
connected. C51 and C71 can be omitted when
using a reference signal.
a
7.5 Additional filtering
In the 868/915 MHz reference design, C106
and L105 together with C105 build an optional
filter to reduce emission at 699 MHz. This filter
may be necessary for applications seeking
compliance with ETSI EN 300-220, for more
information, see DN017 [6]. If this filtering is
not necessary, C105 will work as a DC block
(only necessary if there is a DC path in the
antenna). C106 and L105 should in that case
be left unmounted.
Additional external components (e.g. an RF
SAW filter) may be used in order to improve
the performance in specific applications. The
use of wire-wound inductors in the application
circuit will also improve the RF performance
and give higher output power. For more
information, see DN017 [6].
7.6 Power supply decoupling
The power supply must be properly decoupled
close to the supply pins. Note that decoupling
capacitors are not shown in the application
circuit. The placement and the size of the
decoupling capacitors are very important to
achieve the optimum performance.
The
CC1150EM reference design should be
followed closely ([1] and [2]).
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CC1150
7.7 Antenna Considerations
The reference designs ([1] and [2]) contains a
SMA connector and is match for a 50 Ω load.
The SMA connector makes it easy to connect
evaluation modules and prototypes to different
test equipment for example a spectrum
analyzer. The SMA connector can also be
replaced by an antenna suitable for the
desired application.
Please refer to the
antenna selection guide AN058 [7] for further
details regarding antenna solutions provided
by TI.
Component
C41
Description
Decoupling capacitor for on-chip voltage regulator to digital part
Crystal loading capacitors
C51/C71
C101/C111
C102
RF balun/matching capacitors
RF LC filter/matching filter capacitor (315 and 433 MHz). RF balun/matching
capacitor (868/915 MHz).
C103
C104
RF LC filter/matching capacitors
RF balun DC blocking capacitor
C105
RF LC filter DC blocking capacitor and part of optional RF LC filter (868/915 MHz)
Part of optional RF LC filter and DC Block (868/915 MHz)
RF balun/matching inductors (inexpensive multi-layer type)
C106
L101/L111
L102
RF LC filter/matching filter inductor (315 and 433 MHz). RF balun/matching inductor
(868/915 MHz) (inexpensive multi-layer type)
L103
L104
L105
R141
XTAL
RF LC filter/matching inductor (inexpensive multi-layer type)
RF LC filter/matching inductor (inexpensive multi-layer type)
Part of optional RF LC filter (868/915 MHz)(inexpensive multi-layer type)
Resistor for internal bias current reference
26-27 MHz crystal
Table 13: Overview of External Components (excluding supply decoupling capacitors)
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Page 13 of 60
CC1150
1.8V-3.6V power supply
R141
SI
Antenna
(50 Ohm)
C111
L111
SCLK
1 SCLK
AVDD 12
SO
(GDO1)
2 SO
(GDO1)
C105
CC1150 RF_N 11
DIE ATTACH PAD:
RF_P 10
3 DVDD
L102
L103
C102
C101
C103
4 DCOUPL
CSn 9
L101
C104
C41
GDO0
(optional)
CSn
XTAL
C71
C51
Figure 4: Typical Application and Evaluation Circuit 315/433 MHz (excluding supply decoupling
capacitors)
1.8V-3.6V power supply
R141
SI
Antenna
(50 Ohm)
C111
L111
SCLK
L112
C101
1 SCLK
AVDD 12
C105
SO
(GDO1)
2 SO
(GDO1)
CC1150 RF_N 11
L103
L104
DIE ATTACH PAD:
RF_P 10
3 DVDD
4 DCOUPL
CSn 9
C103
L101
L102
L105
C106
C106 and L105 may
be added to build an
optional filter to reduce
emission at 699 MHz
C102
C41
C104
GDO0
(optional)
CSn
XTAL
C71
C51
Figure 5: Typical Application and Evaluation Circuit 868/915 MHz (excluding supply decoupling
capacitors)
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Page 14 of 60
CC1150
Component
C41
Value at 31 5MHz
Value at 433 MHz
100 nF ± 10%, 0402 X5R
27 pF ± 5%, 0402 NP0
27 pF ± 5%, 0402 NP0
3.9 pF ± 0.25 pF, 0402 NP0
8.2 pF ± 0.5 pF, 0402 NP0
5.6pF±0.5pF, 0402 NP0
220 pF ± 5%, 0402 NP0
220 pF ± 5%, 0402 NP0
Value at 868/915 MHz
C51
C71
C101
C102
C103
C104
C105
6.8 pF ± 0.5 pF, 0402 NP0
12 pF ± 5%, 0402 NP0
6.8 pF ± 0.5 pF, 0402 NP0
220 pF ± 5%, 0402 NP0
220 pF ± 5%, 0402 NP0
1.0 pF ± 0.25 pF, 0402 NP0
1.5 pF ± 0.25 pF, 0402 NP0
3.3 pF ± 0.25 pF, 0402 NP0
100 pF ± 5%, 0402 NP0
100 pF ± 5%, 0402 NP0
(12 pF ± 5%, 0402 NP0 if optionally
699 MHz filter is desired)
C106
(47 pF ± 5%, 0402 NP0 if optionally
699 MHz filter is desired)
C111
L101
L102
L103
L104
6.8 pF ± 0.5 pF, 0402 NP0
33nH±5%, 0402 monolithic
18nH±5%, 0402 monolithic
33 nH ± 5%, 0402 monolithic
3.9 pF ± 0.25 pF, 0402 NP0
27 nH ± 5%, 0402 monolithic
22 nH ± 5%, 0402 monolithic
27 nH ± 5%, 0402 monolithic
1.5 pF ± 0.25pF, 0402 NP0
12 nH ± 5%, 0402 monolithic
18 nH ± 5%, 0402 monolithic
12 nH ± 5%, 0402 monolithic
(12 nH ± 5%, 0402 monolithic if
optionally 699 MHz filter is desired)
L105
L111
L112
R141
XTAL
3.3 nH ± 5%, 0402 monolithic
12 nH ± 5%, 0402 monolithic
18 nH ± 5%, 0402 monolithic
33 nH ± 5%, 0402 monolithic
27 nH ± 5%, 0402 monolithic
56 kΩ±1%, 0402
26.0 MHz surface mount crystal
Table 14: Bill of Materials for the Application Circuit (Murata LQG15HS and GRM1555C series
inductors and capacitors, resistor from the Koa RK73 series, and AT-41CD2 crystal from NDK)
7.8 PCB Layout Recommendations
The top layer should be used for signal
routing, and the open areas should be filled
with metallization connected to ground using
several vias.
reduces the solder paste coverage below
100%. See Figure 6 for top solder resist and
top paste masks.
All the decoupling capacitors should be placed
as close as possible to the supply pin it is
supposed to decouple. Each decoupling
capacitor should be connected to the power
line (or power plane) by separate vias. The
best routing is from the power line (or power
plane) to the decoupling capacitor and then to
the CC1150 supply pin. Supply power filtering is
very important.
The area under the chip is used for grounding
and shall be connected to the bottom ground
plane with several vias for good thermal
performance and sufficiently low inductance to
ground.
In the CC1150EM reference designs ([1] and
[2]), 5 vias are placed inside the exposed die
attached pad. These vias should be “tented”
(covered with solder mask) on the component
side of the PCB to avoid migration of solder
through the vias during the solder reflow
process.
Each decoupling capacitor ground pad should
be connected to the ground plane by separate
vias. Direct connections between neighboring
power pins will increase noise coupling and
should be avoided unless absolutely
necessary. Routing in the ground plane
underneath and between the chip, the
balun/RF matching circuit and the decoupling
capacitor’s ground vias should also be
The solder paste coverage should not be
100%. If it is, out gassing may occur during the
reflow process, which may cause defects
(splattering, solder balling). Using “tented” vias
SWRS037A
Page 15 of 60
CC1150
avoided. This improves the grounding and
ensures the shortest possible return path for
stray currents.
Precaution should be used when placing the
microcontroller in order to avoid noise
interfering with the RF circuitry.
The external components should ideally be as
small as possible (0402 is recommended) and
It is strongly advised that the CC1150EM
reference design ([1] and [2]) layout is followed
very closely in order to get the best
performance. Gerber files and schematics for
the reference designs are available for
download from the TI website.
surface
mount
devices
are
highly
recommended. Please note that components
smaller than those specified may have
differing characteristics.
Figure 6: Left: Top Solder Resist Mask (Negative). Right: Top Paste Mask. Circles are Vias
8
Configuration Overview
CC1150 can be configured to achieve optimum
•
•
Forward Error Correction with interleaving
Data Whitening
performance for many different applications.
Configuration is done using the SPI interface.
The following key parameters can be
programmed:
Details of each configuration register can be
found in section 25, starting on page 42.
•
•
•
•
•
•
•
•
•
Power-down / power-up mode
Crystal oscillator power-up / power – down
Transmit mode
RF channel selection
Data rate
Modulation format
RF output power
Data buffering with 64-byte transmit FIFO
Packet radio hardware support
Figure 7 shows a simplified state diagram that
explains the main CC1150 states, together with
typical usage and current consumption. For
detailed information on controlling the CC1150
state machine, and a complete state diagram,
see section 16, starting on page 30.
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Page 16 of 60
CC1150
Lowest power mode.
Register values are lost.
Current consumption typ
200nA.
Sleep
SPWD
SIDLE
Default state when the radio is not
receiving or transmitting. Typ.
current consumption: 1.1 mA.
CSn=0
SXOFF
IDLE
SCAL
Used for calibrating frequency
synthesizer upfront (entering
transmit mode can then be
done quicker). Transitional
state. Typ. current
CSn=0
All register values are
retained. Typ. current
consumption; 0.22 mA.
Manual freq.
synth. calibration
Crystal
oscillator off
SRX or STX or SFSTXON
consumption: 7.7 mA.
Frequency
synthesizer startup,
optional calibration,
settling
Frequency synthesizer is turned on, can optionally be
calibrated, and then settles to the correct frequency.
Transitional state. Typ. current consumption: 7.7 mA.
SFSTXON
Frequency synthesizer is on,
ready to start transmitting.
Transmission starts very
Frequency
quickly after receiving the STX synthesizer on
command strobe.Typ. current
consumption: 7.7 mA.
STX
STX
TXOFF_MODE=01
Typ. current consumption 868 MHz:
14 mA at -10 dBm output,
15 mA at 0 dBm output,
24 mA at +7 dBm output,
29 mA at +10 dBm output.
Transmit mode
TXOFF_MODE=00
In FIFO-based modes,
transmission is turned off and
this state entered if the TX
FIFO becomes empty in the
middle of a packet. Typ.
Optional transitional state. Typ.
current consumption: 7.7 mA.
TX FIFO
underflow
Optional freq.
synth. calibration
current consumption: 1.1 mA.
SFTX
IDLE
Figure 7: Simplified State Diagram with Typical Usage and Current Consumption
9
Configuration Software
CC1150 can be configured using the SmartRF®
Studio [11] software, available for download
from www.ti.com/smartrfstudio. The SmartRF
Studio software is highly recommended for
obtaining optimum register settings, and for
evaluating performance and functionality. A
screenshot of the SmartRF Studio user
interface for CC1150 is shown in Figure 8.
After chip reset, all the registers have default
values as shown in the tables in section 25.
The optimum register setting might differ from
the default value. After a reset all registers that
shall be different from the default value
therefore needs to be programmed through
the SPI interface.
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Page 17 of 60
CC1150
Figure 8: SmartRF Studio User Interface
10 4-wire Serial Configuration and Data Interface
and data transfer on the SPI interface is shown
in Figure 9 with reference to Table 15.
CC1150 is configured via a simple 4-wire SPI-
compatible interface (SI, SO, SCLK and CSn)
where CC1150 is the slave. This interface is
also used to read and write buffered data. All
address and data transfer on the SPI interface
is done most significant bit first.
When CSn is pulled low, the MCU must wait
until the CC1150 SOpin goes low before starting
to transfer the header byte. This indicates that
the voltage regulator has stabilized and the
crystal is running. Unless the chip is in the
SLEEP or XOFF states, the SOpin will always
go low immediately after taking CSnlow.
All transactions on the SPI interface start with
a header byte containing a read/write bit, a
burst access bit and a 6-bit address.
During address and data transfer, the CSnpin
(Chip Select, active low) must be kept low. If
CSn goes high during the access, the transfer
will be cancelled. The timing for the address
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Page 18 of 60
CC1150
tsp
tch
tcl
tsd
thd
tns
SCLK:
CSn:
Write to register:
X
A6
S6
A5
S5
A4
S4
A3
S3
A2
A1
S1
A0
S0
X
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D 0
W
X
0
W
W
W
W
W
W
W
SI
S7
S2
S7
S6
S5
S4
S3
S2
S1
S0
S7
Hi-Z
Hi-Z
SO
Read from register:
X
A6
S6
A5
S5
A4
S4
A3
S3
A2
S2
A1
S1
A0
S0
X
1
SI
S7
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D 0
R
Hi-Z
Hi-Z
R
R
R
R
R
R
R
SO
Figure 9: Configuration Registers Write and Read Operations
Parameter
Description
Min
Max
Units
fSCLK
-
10
MHz
SCLKfrequency
100 ns delay inserted between address byte and data byte (single access), or between
address and data, and between each data byte (burst access).
9
SCLKfrequency, single access
No delay between address and data byte
6.5
SCLKfrequency, burst access
No delay between address and data byte, or between data bytes
tsp,pd
tsp
150
20
-
-
µs
CSnlow to positive edge on SCLK, in power-down mode
ns
CSnlow to positive edge on SCLK, in active mode
tch
tcl
Clock high
50
50
-
-
-
ns
ns
ns
ns
ns
ns
Clock low
trise
tfall
tsd
Clock rise time
Clock fall time
5
5
-
-
Single access
55
76
Setup data (negative SCLK edge) to
positive edge on SCLK
Burst access
-
(tsd applies between address and data bytes, and
between data bytes)
thd
tns
20
20
-
-
ns
ns
Hold data after positive edge on SCLK
Negative edge on SCLKto CSnhigh
Table 15: SPI Interface Timing Requirements
Note that the minimum tsp,pd figure in Table 15 can be used in cases where the user does not read the
CHIP_RDYn signal. CSn low to positive edge on SCLK when the chip is woken from power-down
depends on the start-up time of the crystal being used. The 150 µs in Table 15 is the crystal oscillator
start-up time measured using crystal AT-41CD2 from NDK.
10.1 Chip Status Byte
When the header byte, data byte or command
strobe is sent on the SPI interface, the chip
status byte is sent by the CC1150 on the SOpin.
The status byte contains key status signals,
useful for the MCU. The first bit, s7, is the
CHIP_RDYn signal; this signal must go low
before the first positive edge of SCLK. The
CHIP_RDYn signal indicates that the crystal is
running and the regulated digital supply
voltage is stable.
Bit 6, 5 and 4 comprises the STATEvalue. This
value reflects the state of the chip. The XOSC
and power to the digital core is on in the IDLE
state, but all other modules are in power down.
The frequency and channel configuration
should only be updated when the chip is in this
state. The TX state will be active when the
chip is transmitting.
The last four bits (3:0) in the status byte con-
tains FIFO_BYTES_AVAILABLE. This field
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CC1150
contains the number of bytes free for writing
into the TX FIFO. When
FIFO_BYTES_AVAILABLE=15, 15 or more
bytes are free. Table 16 gives a status byte
summary.
Bits Name
Description
7
CHIP_RDYn
Stays high until power and crystal have stabilized. Should always be low when using
the SPI interface.
6:4
STATE[2:0]
Indicates the current main state machine mode
Value State
Description
000
Idle
IDLE state
(Also reported for some transitional states instead
of SETTLING or CALIBRATE, due to a small error)
001
010
011
100
101
110
111
Not used
TX
Not used
Transmit mode
FSTXON
CALIBRATE
SETTLING
Not used
Fast TX ready
Frequency synthesizer calibration is running
PLL is settling
Not used
TXFIFO_UNDERFLOW TX FIFO has underflowed. Acknowledge with
SFTX
3:0
FIFO_BYTES_AVAILABLE[3:0] The number of free bytes in the TX FIFO.
Table 16: Status Byte Summary
10.2 Register Access
Registers with consecutive addresses can be
accessed in an efficient way by setting the
burst bit in the address header. The address
sets the start address in an internal address
counter. This counter is incremented by one
each new byte (every 8 clock pulses). The
burst access is either a read or a write access
and must be terminated by setting CSnhigh.
The configuration registers on the CC1150 are
located on SPI addresses from 0x00 to 0x2E.
Table 26 on page 43 lists all configuration
registers. The detailed description of each
register is found in Section 25.1, starting on
page 45.
All configuration registers can be both written
and read. The read/write bit controls if the
register should be written or read. When
writing to registers, the status byte is sent on
the SO pin each time a header byte or data
byte is transmitted on the SI pin. When
reading from registers, the status byte is sent
on the SO pin each time a header byte is
transmitted on the SI pin.
For register addresses in the range 0x30-
0x3D, the burst bit is used to select between
status registers (burst bit is 1) and command
strobes (burst bit is 0). See more in section
10.3 below. Because of this, burst access is
not available for status registers, so they must
be read one at a time. The status registers can
only be read.
10.3 SPI Read
When reading register fields over the SPI
interface while the register fields are updated
by the radio hardware (e.g. MARCSTATE or
TXBYTES), there is a small, but finite,
probability that a single read from the register
is being corrupt. As an example, the probability
of any single read from TXBYTES being
corrupt, assuming the maximum data rate is
used, is approximately 80 ppm. Refer to the
CC1150 Errata Notes [8] for more details.
10.4 Command Strobes
Command Strobes may be viewed as single
byte instructions to CC1150. By addressing a
Command Strobe register, internal sequences
will be started. These commands are used to
disable the crystal oscillator, enable transmit
mode, flush the TX FIFO etc. The nine
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CC1150
command strobes are listed in Table 25 on
page 42.
However, if an SREScommand strobe is being
issued, on will have to wait for the SOpin to go
low before the next command strobe can be
issued as shown in Figure 10.The command
strobes are executed immediately, with the
exception of the SPWD and the SXOFFstrobes
that are executed when CSngoes high.
Note that an SIDLE strobe will clear all
pending command strobes until IDLE state is
reached. This means that if for example an
SIDLE strobe is issued while the radio is in TX
state, any other command strobes issued
before the radio reaches IDLE state will be
ignored.
The command strobe registers are accessed
in the same way as for a register write
operation, but no data is transferred. That is,
only the R/W bit (set to 0), burst access (set to
0) and the six address bits (in the range 0x30
through 0x3D) are written.
When writing command strobes, the status
Figure 10: SRES Command Strobe
byte is sent on the SOpin.
A command strobe may be followed by any
other SPI access without pulling CSn high.
10.5 FIFO Access
The 64-byte TX FIFO is accessed through the
0x3F addresses. When the read/write bit is
zero, the TX FIFO is accessed. The TX FIFO
is write-only.
while writing data to the TX FIFO. Note that
the status byte contains the number of bytes
free before writing the byte in progress to the
TX FIFO. When the last byte that fits in the TX
FIFO is transmitted to the SI pin, the status
byte received concurrently on the SO pin will
indicate that one byte is free in the TX FIFO.
The burst bit is used to determine if FIFO
access is single byte or a burst access. The
single byte access method expects address
with burst bit set to zero and one data byte.
After the data byte a new address is expected;
hence, CSncan remain low. The burst access
method expects one address byte and then
consecutive data bytes until terminating the
access by setting CSnhigh.
The TX FIFO may be flushed by issuing a
SFTX command strobe. The SFTX command
strobe can only be issues in the IDLE or
TX_UNDERFLOW states. The FIFO is cleared
when going to the SLEEP state.
Figure 11 gives a brief overview of different
register access types possible.
The following header bytes access the FIFO:
•
•
0x3F: Single byte access to TX FIFO
0x7F: Burst access to TX FIFO
When writing to the TX FIFO, the status byte
(see Section 10.1) is output for each new data
byte on SO, as shown in Figure 10. This status
byte can be used to detect TX FIFO underflow
CSn:
Command strobe(s):
ADDR
ADDR
ADDR
...
DATA
DATA
strobe
strobe strobe
ADDR
DATA
ADDR
ADDR
reg
DATA
...
Read or write register(s):
Read or write consecutive registers (burst):
Read or write n+1 bytes from/to RF FIFO:
Combinations:
reg
reg
ADDR
DATA
DATA
n+1
...
...
reg n
n
n+2
ADDR
DATA
DATA
DATA
DATA
DATA
byte n
FIFO
byte 0
byte 1
byte 2
byte n-1
ADDR
DATA ADDR
ADDR
DATA ADDR
ADDR
DATA
DATA
...
reg
strobe
reg
strobe
FIFO
byte 0 byte 1
Figure 11: Register Access Types
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CC1150
10.6 PATABLE Access
The 0x3E address is used to access the
PATABLE, which is used for selecting PA
power control settings. The SPI expects up to
eight data bytes after receiving the address.
By programming the PATABLE, controlled PA
power ramp-up and ramp-down can be
achieved, as well as ASK modulation shaping
for reduced bandwidth. Note that the ASK
modulation shaping is limited to output powers
below -1 dBm. See SmartRF Studio [11] for
recommended shaping sequence. See also
section 21 on page 35 for details on output
power programming.
table. This counter is incremented each time a
byte is read or written to the table, and set to
the lowest index when CSn is high. When the
highest value is reached the counter restarts at
zero.
The access to the PATABLE is either single
byte or burst access depending on the burst
bit. When using burst access the index counter
will count up; when reaching 7 the counter will
restart at 0. The read/write bit controls whether
the access is a write access (R/W=0) or a read
access (R/W=1).
If one byte is written to the PATABLE and this
value is to be read out then CSn must be set
high before the read access in order to set the
index counter back to zero.
The PATABLE is an 8-byte table that defines
the PA control settings to use for each of the
eight PA power values (selected by the 3-bit
value FREND0.PA_POWER). The table is
written and read from the lowest setting (0) to
the highest (7), one byte at a time. An index
counter is used to control the access to the
Note that the content of the PATABLE is lost
when entering the SLEEP state. For more
information, see DN501 [8].
11 Microcontroller Interface and Pin Configuration
In a typical system, CC1150 will interface to a
microcontroller. This microcontroller must be
able to:
• Write buffered data
• Read back status information via the 4-wire
SPI-bus configuration interface (SI, SO,
SCLKand CSn).
• Program CC1150 into different modes,
11.1 Configuration Interface
The microcontroller uses four I/O pins for the
SPI configuration interface (SI, SO, SCLK and
CSn). The SPI is described in Section 10 on
page 18.
11.2 General Control and Status Pins
The GDO0pin can also be used for an on-chip
analog temperature sensor. By measuring the
voltage on the GDO0pin with an external ADC,
The CC1150 has one dedicated configurable pin
(GDO0) and one shared pin (GDO1/SO) that
can output internal status information useful for
control software. These pins can be used to
generate interrupts on the MCU. See section
22 page 37 for more details of the signals that
can be programmed. The shared pin is the SO
pin in the SPI interface. The default setting for
GDO1/SO is 3-state output. By selecting any
other of the programming options the
GDO1/SOpin will become a generic pin. When
CSn is low, the pin will always function as a
normal SOpin.
the
temperature
can
be
calculated.
Specifications for the temperature sensor are
found in section 4.5 on page 9. With default
PTESTregister setting (0x7F), the temperature
sensor output is only available when the
frequency synthesizer is enabled (e.g. the
MANCAL, FSTXON and TX states). It is
necessary to write 0xBF to the PTESTregister
to use the analog temperature sensor in the
IDLE state. Before leaving the IDLE state, the
PTEST register should be restored to its
default value (0x7F).
In the synchronous and asynchronous serial
modes, the GDO0 pin is used as a serial TX
data input pin while in transmit mode.
SWRS037A
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CC1150
11.3 Optional Radio Control Feature
SCLK are set to TX and CSn toggles. When
CSn is low the SI and SCLK has normal SPI
functionality.
The CC1150 has an optional way of controlling
the radio by reusing SI, SCLK, and CSn from
the SPI interface. This feature allows for a
simple three-pin control of the major states of
the radio: SLEEP, IDLE, and TX.
All pin control command strobes are executed
immediately except the SPWD strobe. The
SPWDstrobe is delayed until CSn goes high.
This optional functionality is enabled with the
MCSM0.PIN_CTRL_ENconfiguration bit.
CSn SCLK SI
Function
State changes are commanded as follows:
1
↓
↓
↓
X
0
0
1
X
0
1
0
Chip unaffected by SCLK/SI
Generates SPWDstrobe
Generates STXstrobe
Generates SIDLEstrobe
• If CSn is high, the SI and SCLK are set to
the desired state according to Table 17.
• If CSn goes low, the state of SI and SCLK
is latched and a command strobe is
generated internally according to the pin
configuration.
Defined on the transceiver
version (CC1101)
1
1
↓
SPI
mode
SPI
SPI mode (wakes up into
It is only possible to change state with the
latter functionality. That means that for
instance TX will not be restarted if SI and
0
mode IDLE if in SLEEP/XOFF)
Table 17: Optional Pin Control Coding
12 Data Rate Programming
The data rate used when transmitting is
programmed by the MDMCFG3.DRATE_M and
If DRATE_M is rounded to the nearest integer
and becomes 256, increment DRATE_E and
use DRATE_M=0.
the
MDMCFG4.DRATE_E
configuration
registers. The data rate is given by the formula
below. As the formula shows, the programmed
data rate depends on the crystal frequency.
The data rate can be set from 0.8 kBaud to
500 kBaud with the minimum data rate step
size changes according to Table 18 below.
Min Data
rate
[kBaud]
Typical data
rate
[kBaud]
Max Data
rate
[kBaud]
Data rate
step size
[kBaud]
(
256 + DRATE _ M
)
⋅ 2DRATE _ E
RDATA
=
⋅ fXOSC
228
0.8
3.17
6.35
12.7
25.4
50.8
101.6
203.1
406.3
1.2 / 2.4
4.8
3.17
6.35
12.7
25.4
50.8
101.6
203.1
406.3
500
0.0062
0.0124
0.0248
0.0496
0.0992
0.1984
0.3967
0.7935
1.5869
The following approach can be used to find
suitable values for a given data rate:
9.6
19.6
38.4
76.8
153.6
250
RDATA ⋅ 220
⎢
⎥
⎥
⎛
⎜
⎜
⎝
⎞
⎟
⎟
⎠
DRATE _ E = log
⎢
2
fXOSC
⎢
⎣
⎥
⎦
RDATA ⋅ 228
fXOSC ⋅ 2DRATE _ E
500
DRATE _ M =
− 256
Table 18: Data Rate Step Size
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CC1150
13 Packet Handling Hardware Support
The CC1150 has built-in hardware support for
packet oriented radio protocols.
•
Optionally compute and add a 2 byte CRC
checksum over the data field.
In transmit mode, the packet handler can be
configured to add the following elements to the
packet stored in the TX FIFO:
In a system where CC1150 is used as the
transmitter and CC1101 as the receiver the
recommended setting is 4-byte preamble and
4-byte sync word except for 500 kBaud data
rate where the recommended preamble length
is 8 bytes.
•
•
A programmable number of preamble
bytes.
A two byte Synchronization Word. Can be
duplicated to give a 4-byte sync word
(recommended). It is not possible to only
insert preamble or only insert a sync word.
Optionally whitening the data with a PN9
sequence.
Note that register fields that control the packet
handling features should only be altered when
CC1150 is in the IDLE state.
•
•
Optionally Interleave and Forward Error
Code the data.
13.1 Data whitening
From a radio perspective, the ideal over the air
data are random and DC free. This results in
the smoothest power distribution over the
occupied bandwidth. This also gives the
regulation loops in the receiver uniform
operation conditions (no data dependencies).
.WHITE_DATA=1. All data, except the
preamble and the sync word, are then XOR-ed
with a 9-bit pseudo-random (PN9) sequence
before being transmitted as shown in Figure
12. The PN9 sequence is initialized to all 1’s.
At the receiver end, the data are XOR-ed with
the same pseudo-random sequence. This way,
the whitening is reversed, and the original data
appear in the receiver.
Real world data often contain long sequences
of zeros and ones. Performance can then be
improved by whitening the data before
transmitting, and de-whitening in the receiver.
With CC1150, in combination with a CC1101 at
the receiver end, this can be done
Setting
PKTCTRL0
.WHITE_DATA=1
is
recommended for all uses, except when over-
the-air compatibility with other systems is
needed.
automatically
by
setting
PKTCTRL0
Figure 12: Data Whitening in TX Mode
SWRS037A
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CC1150
13.2 Packet Format
The format of the data packet can be
configured and consists of the following items:
•
•
•
•
Optional length byte
Optional Address byte
Payload
•
•
Preamble
Synchronization word
Optional 2 byte CRC
Optional data whitening
Optionally FEC encoded/decoded
Optional CRC-16 calculation
Legend:
Inserted automatically in TX,
processed and removed in RX.
Optional user-provided fields processed in TX,
processed but not removed in RX.
Preamble bits
(1010...1010)
Data field
Unprocessed user data (apart from FEC
and/or whitening)
8
8
8 x n bits
16/32 bits
8 x n bits
16 bits
bits bits
Figure 13: Packet Format
The preamble pattern is an alternating
sequence of ones and zeros (01010101…).
The number of preamble bytes is programmed
with the MDMCFG1.NUM_PREAMBLE value.
When enabling TX, the modulator will start
transmitting the preamble. When the
programmed number of preamble bytes has
been transmitted, the modulator will send the
sync word and then data from the TX FIFO if
data is available. If the TX FIFO is empty, the
modulator will continue to send preamble
bytes until the first byte is written to the TX
FIFO. The modulator will then send the sync
word and then the data bytes.
payload data, excluding the length byte and
the optional automatic CRC.
With PKTCTRL0.LENGTH_CONFIG=2, the
packet length is set to infinite and transmission
will continue until turned off manually. The
infinite mode can be turned off while a packet
is being transmitted. As described in the next
section, this can be used to support packet
formats with different length configuration than
natively supported by CC1150. One should
make sure that TX mode is not turned off
during the transmission of the first half of any
byte. Refer to the CC1150 Errata Notes [8] for
more details.
The synchronization word is a two-byte value
set in the SYNC1 and SYNC0 registers. The
sync word provides byte synchronization of the
incoming packet. A one-byte synch word can
be emulated by setting the SYNC1value to the
preamble pattern. It is also possible to emulate
Note that the minimum packet length
supported (excluding the optional length byte
and CRC) is one byte of payload data.
13.2.1 Arbitrary Length Field Configuration
a
32
bit
sync
word
by
using
The packet automation control register,
PKTCTRL0, can be reprogrammed during TX.
This opens the possibility to transmit packets
that are longer than 256 bytes and still be able
to use the packet handling hardware support.
At the start of the packet, the infinite mode
(PKTCTRL0.LENGTH_CONFIG=2) must be
active. The PKTLEN register is set to
mod(length, 256). When less than 256
bytes remains of the packet, the MCU disables
infinite packet length and activates fixed length
packets. When the internal byte counter
reaches the PKTLEN value, the transmission
ends (the radio enters the state determined by
TXOFF_MODE). Automatic CRC appending
MDMCFG2.SYNC_MODEset to 3 or 7. The sync
word will then be repeated twice.
CC1150 supports both fixed packet length
protocols and variable packet length protocols.
Variable or fixed packet length mode can be
used for packets up to 255 bytes. For longer
packets, infinite packet length mode must be
used.
Fixed packet length mode is selected by
setting PKTCTRL0.LENGTH_CONFIG=0. The
desired packet length is set by the PKTLEN
register. In variable packet length mode
PKTCTRL0.LENGTH_CONFIG=1, the packet
length is configured by the first byte after the
sync word. The packet length is defined as the
can
be
used
(by
setting
PKTCTRL0.CRC_EN=1).
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CC1150
When for example a 600-byte packet is to be
transmitted, the MCU should do the following
(see also Figure 14):
•
Transmit at least 345 bytes, for example
by filling the 64-byte TX FIFO six times
(384 bytes transmitted).
•
•
Set PKTCTRL0.LENGTH_CONFIG=2.
•
•
Set PKTCTRL0.LENGTH_CONFIG=0.
Pre-program the PKTLEN register to
mod(600,256)=88.
The transmission ends when the packet
counter reaches 88. A total of 600 bytes
are transmitted.
Figure 14: Arbitrary Length Field Configuration
13.3 Packet Handling in Transmit Mode
The payload that is to be transmitted must be
written into the TX FIFO. The first byte written
must be the length byte when variable packet
length is enabled. The length byte has a value
equal to the payload of the packet (including
the optional address byte). If fixed packet
length is enabled, then the first byte written to
the TX FIFO is interpreted as the destination
address, if this feature is enabled in the device
that receives the packet.
the payload data. If the TX FIFO runs empty
before the complete packet has been
transmitted,
the
radio
will
enter
TXFIFO_UNDERFLOW state. The only way to
exit this state is by issuing an SFTX strobe.
Writing to the TX FIFO after it has underflowed
will not restart TX mode.
If whitening is enabled, the length byte,
payload data and the two CRC bytes will be
whitened. This is done before the optional
FEC/Interleaver stage. Whitening is enabled
by setting PKTCTRL0.WHITE_DATA=1.
The modulator will first send the programmed
number of preamble bytes. If data is available
in the TX FIFO, the modulator will send the
two-byte (optionally 4-byte) sync word and
then the payload in the TX FIFO. If CRC is
enabled, the checksum is calculated over all
the data pulled from the TX FIFO and the
result is sent as two extra bytes at the end of
If FEC/Interleaving is enabled, the length byte,
payload data and the two CRC bytes will be
scrambled by the interleaver, and FEC
encoded before being modulated. FEC is
enabled by setting MDMCFG1.FEC_EN=1.
13.4 Packet Handling in Firmware
When implementing a packet oriented radio
protocol in firmware, the MCU needs to know
The GDO pins can be used in TX to give an
interrupt when
transmitted or when a complete packet has
been transmitted by setting
IOCFGx.GDOx_CFG=0x06. In addition, there
are two configurations for the
a
sync word has been
when
a
packet has been transmitted.
Additionally, for packets longer than 64 bytes,
the TX FIFO needs to be refilled while in TX.
This means that the MCU needs to know the
number of bytes that can be written to the TX
FIFO. There are two possible solutions to get
the necessary status information:
IOCFGx.GDOx_CFG register that can be used
as an interrupt source to provide information
on how many bytes that is in the TX FIFO. The
IOCFGx.GDOx_CFG=0x02
and
the
a) Interrupt Driven Solution
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CC1150
each time a header byte, data byte, or
command strobe is sent on the SPI bus.
IOCFGx.GDOx_CFG=0x03 configurations are
associated with the TX FIFO. See Table 24 for
more information.
It is recommended to employ an interrupt
driven solution due to that when using SPI
polling, there is a small, but finite, probability
that a single read from registers PKTSTATUS
and TXBYTES is being corrupt. The same is
the case when reading the chip status byte.
This is explained in the CC1150 Errata Notes [8]
Refer to the TI website for SW examples [12]
b) SPI Polling
The PKTSTATUS register can be polled at a
given rate to get information about the current
GDO2 and GDO0 values respectively. The
TXBYTESregister can be polled at a given rate
to get information about the number of bytes in
the TX FIFO. Alternatively, the number of
bytes in the TX FIFO can be read from the
chip status byte returned on the MISO line
14 Modulation Formats
by setting MDMCFG2.MANCHESTER_EN=1.
Manchester encoding cuts the effective data
rate in half, and thus Manchester is not
supported for 500 kBaud. Further note that
Manchester encoding is not supported at the
same time as using the FEC/Interleaver option
or when using MSK modulation.
CC1150 supports amplitude, frequency and
phase shift modulation formats. The desired
modulation
format
is
set
in
the
MDMCFG2.MOD_FORMAT register.
Optionally, the data stream can be Manchester
coded by the modulator. This option is enabled
14.1 Frequency Shift Keying
exponent/mantissa form, and the resultant
deviation is given by:
CC1150 has the possibility to use Gaussian
shaped 2_FSK (GFSK). The 2-FSK signal is
then shaped by a Gaussian filter with BT=1,
producing a GFSK modulated signal. This
spectrum-shaping feature improves adjacent
fxosc
fdev
=
⋅(8 + DEVIATION _ M )⋅2DEVIATION _ E
217
channel
power
(ACP)
and
occupied
bandwidth.
The symbol encoding is shown in Table 19.
In “true” 2-FSK systems with abrupt frequency
shifting, the spectrum is inherently broad. By
making the frequency shift “softer”, the
spectrum can be made significantly narrower.
Thus, higher data rates can be transmitted in
the same bandwidth using GFSK.
Format
Symbol
Coding
2-FSK/GFSK
‘0’
‘1’
– Deviation
+ Deviation
Table 19: Symbol Encoding for 2-FSK/GFSK
Modulation
The frequency deviation is programmed with
the DEVIATION_M and DEVIATION_E values
in the DEVIATN register. The value has an
14.2 Minimum Shift Keying
When using MSK1, the complete transmission
(preamble, sync word and payload) will be
MSK modulated.
used to change the phase can be modified
with the DEVIATN.DEVIATION_M setting.
This is equivalent to changing the shaping of
the symbol.
Phase shifts are performed with a constant
transition time. The fraction of a symbol period
Note that when using MSK, Manchester
encoding must be disabled by setting
MDMCFG2.MANCHESTER_EN=0. Further note
that the MSK modulation format implemented
in CC1150 inverts the data compared to e.g.
signal generators.
1
Identical to offset QPSK with half-sine
shaping (data coding may differ)
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CC1150
14.3 Amplitude Modulation
of the pulse amplitude. Pulse shaping will
produce a more bandwidth constrained output
spectrum.
CC1150 supports two different forms of
amplitude modulation: On-Off Keying (OOK)
and Amplitude Shift Keying (ASK).
Note that the OOK/ASK pulse shaping feature
on the CC1150 does only support output power
up to about -1 dBm.
OOK modulation simply turns on or off the PA
to modulate 1 and 0 respectively.
The ASK variant supported by the CC1150
allows programming of the modulation depth
(the difference between 1 and 0), and shaping
The DEVIATN register has no effect when
using ASK/OOK.
15 Forward Error Correction with Interleaving
15.1 Forward Error Correction (FEC)
Finally, in realistic ISM radio environments,
CC1150 has built in support for Forward Error
Correction (FEC) that can be used with CC1101
at the receiver end. To enable this option, set
MDMCFG1.FEC_ENto 1. FEC is only supported
in fixed packet length mode, i.e. when
transient and time-varying phenomena will
produce occasional errors even in otherwise
good reception conditions. FEC will mask such
errors and, combined with interleaving of the
coded data, even correct relatively long
periods of faulty reception (burst errors).
PKTCTRL0.LENGTH_CONFIG=0.
FEC is
employed on the data field and CRC word in
order to reduce the gross bit error rate when
The FEC scheme adopted for CC1150 is
convolutional coding, in which n bits are
generated based on k input bits and the m
most recent input bits, forming a code stream
able to withstand a certain number of bit errors
between each coding state (the m-bit window).
operating
near
the
sensitivity
limit.
Redundancy is added to the transmitted data
in such a way that the receiver can restore the
original data in the presence of some bit
errors.
The use of FEC allows correct reception at a
lower Signal-to-Noise RATIO (SNR), thus
extending communication range. Alternatively,
for a given SNR, using FEC decreases the bit
error rate (BER). As the packet error rate
(PER) is related to BER by
The convolutional coder is a rate 1/2 code with
a constraint length of m=4. The coder codes
one input bit and produces two output bits;
hence, the effective data rate is halved. This
means that in order to transmit at the same
effective data rate when using FEC, it is
necessary to use twice as high over-the-air
data rate.
PER = 1− (1− BER)packet _ length
A lower BER can be used to allow longer
packets, or a higher percentage of packets of
a given length, to be transmitted successfully.
15.2 Interleaving
Data received through real radio channels will
often experience burst errors due to
interference and time-varying signal strengths.
In order to increase the robustness to errors
spanning multiple bits, interleaving is used
when FEC is enabled. After de-interleaving, a
continuous span of errors in the received
stream will become single errors spread apart.
rows of the matrix, whereas the bit sequence
to be transmitted is read from the columns of
the matrix and fed to the rate ½ convolutional
coder. Conversely, in a CC1101 receiver, the
received symbols are written into the rows of
the matrix, whereas the data passed onto the
convolutional decoder is read from the
columns of the matrix.
CC1150 employs matrix interleaving, which is
illustrated in Figure 15. The on-chip
interleaving buffer is a 4 x 4 matrix. In the
transmitter, the data bits are written into the
When FEC and interleaving is used, at least
one extra byte is required for trellis
termination. In addition, the amount of data
transmitted over the air must be a multiple of
SWRS037A
Page 28 of 60
CC1150
the size of the interleaver buffer (two bytes).
The packet control hardware therefore
automatically inserts one or two extra bytes at
the end of the packet, so that the total length
of the data to be interleaved is an even
number. Note that these extra bytes are
invisible to the user, as they are removed
before the received packet enters the RX FIFO
in a CC1101.
When FEC and interleaving is used, the
minimum data payload is 2 bytes in fixed and
variable packet length mode.
Interleaver
Write buffer
Interleaver
Read buffer
Packet
Engine
FEC
Encoder
Modulator
Interleaver
Write buffer
Interleaver
Read buffer
FEC
Decoder
Packet
Engine
Demodulator
Figure 15: General Principle of Matrix Interleaving
SWRS037A
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CC1150
16 Radio Control
SIDLE
SLEEP
0
SPWD
CAL_COMPLETE
CSn = 0
SXOFF
CSn = 0
MANCAL
3,4,5
IDLE
1
SCAL
XOFF
2
STX | SFSTXON
FS_WAKEUP
6,7
FS_AUTOCAL = 01
&
STX | SFSTXON
FS_AUTOCAL = 00 | 10 | 11
&
CALIBRATE
STX | SFSTXON
8
CAL_COMPLETE
SETTLING
9,10
SFSTXON
FSTXON
18
STX
STX
TXOFF_MODE = 01
TX
19,20
TXOFF_MODE = 10
TXFIFO_UNDERFLOW
TXOFF_MODE = 00
&
FS_AUTOCAL = 10 | 11
CALIBRATE
12
TXOFF_MODE = 00
&
FS_AUTOCAL = 00 | 01
TX_UNDERFLOW
22
SFTX
IDLE
1
Figure 16: Radio Control State Diagram
either by using command strobes or by
internal events such as TX FIFO underflow.
CC1150 has a built-in state machine that is
used to switch between different operations
states (modes). The change of state is done
SWRS037A
Page 30 of 60
CC1150
A simplified state diagram, together with
typical usage and current consumption, is
shown in Figure 7 on page 17. The complete
radio control state diagram is shown in Figure
16. The numbers refer to the state number
readable in the MARCSTATE status register.
This functionality is primarily for test purposes.
16.1 Power on Start-up Sequence
When the power supply is turned on, the
system must be reset. This is achieved by one
of the two sequences described below, i.e.
Automatic power-on reset or manual reset.
After the automatic power-on reset or manual
reset it is also recommended to change the
signal that is output on the GDO0 pin. The
default setting is to output a clock signal with a
frequency of CLK_XOSC/192, but to optimize
performance in TX, an alternative GDO setting
should be selected from the settings found in
Table 24 on page 38.
16.1.2 Manual Reset
The other global reset possibility on CC1150 is
the SRES command strobe. By issuing this
strobe, all internal registers and states are set
to the default, IDLE state. The power-up
sequence is as follows (see Figure 18):
•
•
Set SCLK = 1 and SI = 0.
Strobe CSnlow / high. Make sure to hold
CSn high for at least 40 µs relative to
pulling CSnlow.
16.1.1 Automatic POR
•
Pull CSn low and wait for SO to go low
(CHIP_RDYn).
A power-on reset circuit is included in the
CC1150. The minimum requirements stated in
Section 4.7 must be followed for the power-on
reset to function properly. The internal power-
up sequence is completed when CHIP_RDYn
goes low. CHIP_RDYn is observed on the SO
•
•
Issue the SRESstrobe on the SI line.
When SO goes low again, reset is
complete and the chip is in the IDLE state.
pin after CSn is pulled low. See Section 10.1
for more details on CHIP_RDYn.
When the CC1150 reset is completed the chip
will be in the IDLE state and the crystal
oscillator running. If the chip has had sufficient
time for the crystal oscillator and voltage
regulator to stabilize after the power-on-reset,
the SOpin will go low immediately after taking
CSn low. If CSn is taken low before reset is
completed the SO pin will first go high,
indicating that the crystal oscillator and voltage
regulator is not stabilized, before going low as
shown in Figure 17.
Figure 18: Power-up with SRES
Note that the above reset procedure is only
required just after the power supply is first
turned on. If the user wants to reset the CC1150
after this, it is only necessary to issue an SRES
command strobe.
It is recommended to always send a SRES
command strobe on the SPI interface after
power-on even though power-on reset is used.
Figure 17: Power-on Reset
16.2 Crystal Control
The crystal oscillator is automatically turned on
when CSn goes low. It will be turned off if the
SXOFF or SPWD command strobes are issued;
the state machine then goes to XOFF or
SLEEP respectively. This can only be done
from IDLE state. The XOSC will be turned off
when CSnis released (goes high). The XOSC
will be automatically turned on again when
SWRS037A
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CC1150
Crystal oscillator start-up time depends on
crystal ESR and load capacitances. The
electrical specification for the crystal oscillator
CSngoes low. The state machine will then go
to the IDLE state. The SO pin on the SPI
interface must be pulled low before the SPI
interface is ready to be used; as described in
can be found in section 4.3 on page 8.
Section 10.1 on page 19.
16.3 Voltage Regulator Control
The voltage regulator to the digital core is
controlled by the radio controller. When the
chip enters the SLEEP state, which is the state
with the lowest current consumption, the
voltage regulator is disabled. This occurs after
CSn is released when a SPWD command
strobe has been sent on the SPI interface. The
chip is then in the SLEEP state. Setting CSn
low again will turn on the regulator and crystal
oscillator and make the chip enter the IDLE
state.
On the CC1150, all register values (with the
exception of the MCSM0.PO_TIMEOUT field)
are lost in the SLEEP state. After the chip gets
back to the IDLE state, the registers will have
default (reset) contents and must be
reprogrammed over the SPI interface.
16.4 Active Mode
The active transmit mode is activated by the
MCU by using the STXcommand strobe.
TX state until the current packet has been
successfully transmitted. Then the state will
change
as
indicated
by
the
The frequency synthesizer must be calibrated
regularly. CC1150 has one manual calibration
option (using the SCAL strobe), and three
automatic calibration options, controlled by the
MCSM0.FS_AUTOCALsetting:
MCSM1.TXOFF_MODE setting. The possible
destinations are:
•
•
IDLE
FSTXON: Frequency synthesizer on
and ready at the TX frequency.
Activate TX with STX.
•
Calibrate when going from IDLE to TX
(or FSTXON)
•
TX: Start sending preambles
•
•
Calibrate when going from TX to IDLE
The SIDLE command strobe can always be
used to force the radio controller to go to the
IDLE state. Note that if the radio goes from TX
to IDLE by issuing an SIDLE strobe, the
automatic calibration-when-going-from-TX-to-
IDLE will not be performed.
Calibrate every fourth time when going
from TX to IDLE
The calibration takes a constant number of
XOSC cycles; see Table 20 for timing details.
When TX is active, the chip will remain in the
16.5 Timing
The radio controller controls most timing in
CC1150, such as synthesizer calibration and
PLL lock. Table 20 shows timing in crystal
clock cycles for key state transitions. Timing
from IDLE to TX is constant, dependent on the
auto calibration setting. The calibration time is
constant 18739 clock periods. Power on time
and XOSC start-up times are variable, but
within the limits stated in Table 6. Note that in
a frequency hopping spread spectrum or a
multi-channel protocol the calibration time can
be reduced from 721 µs to approximately 150
µs. This is explained in section 24.2.
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CC1150
Description
XOSC
26 MHz
periods crystal
Idle to TX/FSTXON, no calibration
Idle to TX/FSTXON, with calibration
TX to IDLE, no calibration
2298
~21037
2
88.4 µs
809 µs
0.1 µs
TX to IDLE, including calibration
Manual calibration
~18739
~18739
721 µs
721 µs
Table 20: State Transition Timing
17 Data FIFO
lists the 16 FIFO_THR settings and the
corresponding thresholds for the TX FIFO.
The CC1150 contains a 64 byte FIFO for data to
be transmitted. The SPI interface is used for
writing to the TX FIFO. Section 10.5 contains
details on the SPI FIFO access. The FIFO
controller will detect underflow in the TX FIFO.
When writing to the TX FIFO, it is the
responsibility of the MCU to avoid TX FIFO
overflow. This will not be detected by the
CC1150. A TX FIFO overflow will result in an
error in the TX FIFO content.
FIFO_THR
0 (0000)
1 (0001)
2 (0010)
3 (0011)
4 (0100)
5 (0101)
6 (0110)
7 (0111)
8 (1000)
9 (1001)
10 (1010)
11 (1011)
12 (1100)
13 (1101)
14 (1110)
15 (1111)
Bytes in TX FIFO
61
57
53
49
45
41
37
33
29
25
21
17
13
9
FIFO_THR=1
3
Underflow
margin
8 bytes
TXFIFO
Figure 19: Example of FIFO at Threshold
A flag will assert when the number of bytes in
the FIFO is equal to or higher than the
programmed threshold. The flag is used to
generate the FIFO status signals that can be
viewed on the GDO pins (see section 22 on
page 37).
5
1
Table 21: FIFO_THR Settings and the
Figure 19 shows the number of bytes in the TX
FIFO when the threshold flag toggles, in the
case of FIFO_THR=13. Figure 20 shows the
flag as the FIFO is filled above the threshold,
and then drained below.
corresponding FIFO Thresholds
The chip status byte that is available on the SO
pin while transferring the SPI address contains
the fill grade of the TX FIFO. Section 10.1 on
page 19 contains more details on this.
NUM_TXBYTES
6
7
8
9
10
9
8
7
6
The number of bytes in the TX FIFO can also
be read from the TXBYTES.NUM_TXBYTES
status register.
GDO
Figure 20: FIFO_THR=13 vs. Number of
The 4-bit FIFOTHR.FIFO_THRsetting is used
to program the FIFO threshold point. Table 21
Bytes in FIFO
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CC1150
18 Frequency Programming
The base or start frequency is set by the 24 bit
frequency word located in the FREQ2, FREQ1
and FREQ0 registers. This word will typically
be set to the centre of the lowest channel
frequency that is to be used.
The frequency programming in CC1150 is
designed to minimize the programming
needed in a channel-oriented system.
To set up a system with channel numbers, the
desired channel spacing is programmed with
the
MDMCFG0.CHANSPC_M
and
The desired channel number is programmed
with the 8-bit channel number register,
CHANNR.CHAN, which is multiplied by the
channel offset. The resultant carrier frequency
is given by:
MDMCFG1.CHANSPC_E registers. The channel
spacing registers are mantissa and exponent
respectively.
fXOSC
216
fcarrier
=
⋅
(
FREQ + CHAN ⋅
(
256 + CHANSPC _ M
)
⋅2CHANSPC _ E−2 ))
With a 26 MHz crystal the maximum channel
spacing is 405 kHz. To get e.g. 1 MHz channel
spacing on solution is to use 333 kHz channel
spacing and select each third channel in
CHANNR.CHAN.
If any frequency programming register is
altered when the frequency synthesizer is
running, the synthesizer may give an
undesired response. Hence, the frequency
programming should only be updated when
the radio is in the IDLE state.
19 VCO
The VCO is completely integrated on-chip.
19.1 VCO and PLL Self-Calibration
The VCO characteristics will vary with
temperature and supply voltage changes, as
well as the desired operating frequency. In
order to ensure reliable operation, CC1150
includes frequency synthesizer self-calibration
circuitry. This calibration should be done
regularly, and must be performed after turning
on power and before using a new frequency
(or channel). The number of XOSC cycles for
completing the PLL calibration is given in
Table 20 on page 33.
The calibration values are not maintained in
sleep mode. Therefore, the CC1150 must be
recalibrated
after
reprogramming
the
configuration registers when the chip has been
in the SLEEP state.
To check that the PLL is in lock the user can
program register IOCFGx.GDOx_CFG to 0x0A
and use the lock detector output available on
the GDOx pin as an interrupt for the MCU (x =
0,1 or 2). A positive transition on the GDOx pin
means that the PLL is in lock. As an
alternative the user can read register FSCAL1.
The PLL is in lock if the register content is
different from 0x3F. See more information in
the CC1150 Errata Notes [8].
The calibration can be initiated automatically
or manually. The synthesizer can be
automatically calibrated each time the
synthesizer is turned on, or each time the
synthesizer is turned off. This is configured
with the MCSM0.FS_AUTOCALregister setting.
For more robust operation the source code
could include a check so that the PLL is re-
calibrated until PLL lock is achieved if the PLL
does not lock the first time.
In manual mode, the calibration is initiated
when the SCAL command strobe is activated
in the IDLE mode.
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CC1150
20 Voltage Regulators
edge on the SCLK (setup time is s given in
Table 15).
CC1150 contains several on-chip linear voltage
regulators, which generate the supply voltage
needed by low-voltage modules. These
voltage regulators are invisible to the user, and
can be viewed as integral parts of the various
modules. The user must however make sure
that the absolute maximum ratings and
required pin voltages in Table 1 and Table 11
are not exceeded.
If the chip is programmed to enter power-down
mode (SPWD strobe issued), the power will be
turned off after CSngoes high. The power and
crystal oscillator will be turned on again when
CSngoes low.
The voltage regulator for the digital core
requires one external decoupling capacitor.
The voltage regulator output should only be
used for driving the CC1150.
Setting the CSn pin low turns on the voltage
regulator to the digital core and start the
crystal oscillator. The SO pin on the SPI
interface must go low before the first positive
21 Output Power Programming
The RF output power level from the device has
two levels of programmability, as illustrated in
Figure 21. Firstly, the special PATABLE
register can hold up to eight user selected
output power settings. Secondly, the 3-bit
If OOK modulation is used, the logic 0 and
logic 1 power levels shall be programmed to
index 0 and 1 respectively.
Table 22 contains recommended PATABLE
settings for various output levels and
FREND0.PA_POWER
value
selects
the
frequency bands. DN012 [3] gives complete
tables for the different frequency bands. Using
PA settings from 0x61 to 0x6F is not
recommended. Table 23 contains output
power and current consumption for default
PATABLE setting (0xC6).
PATABLE entry to use. This two-level
functionality provides flexible PA power ramp
up and ramp down at the start and end of
transmission, as well as ASK modulation
shaping. In each case, all the PA power
settings in the PATABLEfrom index 0 up to the
FREND0.PA_POWERvalue are used.
PATABLE must be programmed in burst mode
if you want to write to other entries than
The power ramping at the start and at the end
of a packet can be turned off by setting
PATABLE[0]. See section 10.6 on page 22
for PATABLEprogramming details.
FREND0.PA_POWER
to zero and then
programming the desired output power to
index 0 in the PATABLE.
PATABLE(7)[7:0]
PATABLE(6)[7:0]
PATABLE(5)[7:0]
PATABLE(4)[7:0]
PATABLE(3)[7:0]
PATABLE(2)[7:0]
PATABLE(1)[7:0]
PATABLE(0)[7:0]
The PA uses this
setting.
Settings 0 to PA_POWER are
used during ramp-up at start of
transmission and ramp-down at
end of transmission, and for
ASK/OOK modulation.
Index into PATABLE(7:0)
The SmartRF® Studio software
should be used to obtain optimum
PATABLE settings for various
output powers.
e.g 6
PA_POWER[2:0]
in FREND0 register
Figure 21: PA_POWER and PATABLE
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CC1150
315 MHz
Current
consumption,
typ. [mA]
433 MHz
Current
consumption,
typ. [mA]
868 MHz
Current
consumption,
typ. [mA]
915 MHz
Current
consumption,
typ. [mA]
Output
power
[dBm]
Setting
Setting
Setting
Setting
-30
-20
-10
-5
0x12
0x0E
0x26
0x57
0x60
0x8B
0xCC
0xC4
9.9
0x03
0x0E
0x26
0x57
0x60
0x8A
0xC8
0xC2
10.8
11.4
13.3
12.9
14.6
16.5
23.0
26.1
0x03
0x0C
0x26
0x57
0x60
0x8A
0xCC
0xC3
11.2
11.7
13.7
13.3
15.5
17.4
24.4
29.3
0x03
0x0F
0x34
0x56
0x50
0x89
0xC8
0xC0
11.1
11.7
13.6
13.3
15.2
17.4
24.6
29.3
10.4
12.5
12.2
14.1
15.8
21.4
25.6
0
3
7
10
Table 22: Optimum PATABLE Settings for Various Output Power Levels and Frequency Bands
315 MHz
Current
consumption,
typ. [mA]
433 MHz
Current
consumption,
typ. [mA]
868 MHz
Current
consumption,
typ. [mA]
915 MHz
Current
consumption,
typ. [mA]
Default
power
setting
Output
power
[dBm]
Output
power
[dBm]
Output
power
[dBm]
Output
power
[dBm]
0xC6
9.3
24.4
8.1
23.9
8.9
27.3
7.7
25.5
Table 23: Output Power and Current Consumption for Default PATABLE Setting
21.1 Shaping and PA Ramping
With ASK modulation, up to eight power
settings are used for shaping. The modulator
contains a counter that counts up when
transmitting a one and down when transmitting
a zero. The counter counts at a rate equal to 8
times the symbol rate. The counter saturates
at FREND0.PA_POWER and 0 respectively.
This counter value is used as an index for a
lookup in the power table. Thus, in order to
utilize the whole table, FREND0.PA_POWER
should be 7 when ASK is active. The shaping
of the ASK signal is dependent on the
configuration of the PATABLE. Figure 22
shows some examples of ASK shaping. Note
that the OOK/ASK pulse shaping feature on
the CC1150 is only supported for output power
levels below -1 dBm.
Output Power
PATABLE[7]
PATABLE[6]
PATABLE[5]
PATABLE[4]
PATABLE[3]
PATABLE[2]
PATABLE[1]
PATABLE[0]
Time
1
0
0
1
0
1
1
0
Bit Sequence
FREND0.PA_POWER = 3
FREND0.PA_POWER = 7
Figure 22: Shaping of ASK Signal
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CC1150
22 General Purpose / Test Output Control Pins
The two digital output pins GDO0and GDO1are
general control pins. Their functions are
programmed by IOCFG0.GDO0_CFG and
IOCFG1.GDO1_CFG respectively. Table 24
shows the different signals that can be
monitored on the GDO pins. These signals
can be used as an interrupt to the MCU.
The default value for GDO0is a 125 - 146 kHz
clock output (XOSC frequency divided by
192). Since the XOSC is turned on at power-
on-reset, this can be used to clock the MCU in
systems with only one crystal. When the MCU
is up and running it can change the clock
frequency by writing to IOCFG0.GDO0_CFG.
An on-chip analog temperature sensor is
enabled by writing the value 128 (0x80h) to
the IOCFG0.GDO0_CFG register. The voltage
on the GDO0 pin is then proportional to
temperature. See section 4.5 on page 9 for
temperature sensor specifications.
GDO1is the same pin as the SOpin on the SPI
interface, thus the output programmed on this
pin will only be valid when CSn is high. The
default value for GDO1 is 3-stated, which is
useful when the SPI interface is shared with
other devices.
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CC1150
GDOx_CFG[5:0] Description
0 (0x00)
1 (0x01)
Reserved – defined on the transceiver version (CC1101).
Reserved – defined on the transceiver version (CC1101).
Associated to the TX FIFO: Asserts when the TX FIFO is filled at or above the TX FIFO threshold. De-asserts when the TX
2 (0x02)
FIFO is below the same threshold.
Associated to the TX FIFO: Asserts when TX FIFO is full. De-asserts when the TX FIFO is drained below the TX FIFO
threshold.
3 (0x03)
4 (0x04)
5 (0x05)
Reserved – defined on the transceiver version (CC1101).
Asserts when the TX FIFO has underflowed. De-asserts when the FIFO is flushed.
Asserts when sync word has been sent, and de-asserts at the end of the packet. In TX the pin will also de-assert if the TX
FIFO underflows.
6 (0x06)
7 (0x07)
8 (0x08)
9 (0x09)
Reserved – defined on the transceiver version (CC1101).
Reserved – defined on the transceiver version (CC1101).
Reserved – defined on the transceiver version (CC1101).
Lock detector output. The PLL is in lock if the lock detector output has a positive transition or is constantly logic high. To
check for PLL lock the lock detector output should be used as an interrupt for the MCU.
Serial Clock. Synchronous to the data in synchronous serial mode.
In TX mode, data is sampled by CC1150 on the rising edge of the serial clock when GDOx_INV=0.
Reserved – defined on the transceiver version (CC1101).
Reserved – defined on the transceiver version (CC1101).
Reserved – defined on the transceiver version (CC1101).
Reserved – defined on the transceiver version (CC1101).
Reserved – used for test.
10 (0x0A)
11 (0x0B)
12 (0x0C)
13 (0x0D)
14 (0x0E)
15 (0x0F)
16 (0x10)
17 (0x11)
18 (0x12)
19 (0x13)
20 (0x14)
21 (0x15)
22 (0x16)
23 (0x17)
24 (0x18)
25 (0x19)
26 (0x1A)
27 (0x1B)
28 (0x1C)
29 (0x1D)
30 (0x1E)
31 (0x1F)
32 (0x20)
33 (0x21)
34 (0x22)
35 (0x23)
36 (0x24)
37 (0x25)
38 (0x26)
39 (0x27)
40 (0x28)
41 (0x29)
42 (0x2A)
43 (0x2B)
44 (0x2C)
45 (0x2D)
46 (0x2E)
47 (0x2F)
48 (0x30)
49 (0x31)
50 (0x32)
51 (0x33)
52 (0x34)
53 (0x35)
54 (0x36)
55 (0x37)
56 (0x38)
57 (0x39)
58 (0x3A)
59 (0x3B)
60 (0x3C)
61 (0x3D)
62 (0x3E)
63 (0x3F)
Reserved – used for test.
Reserved – used for test.
Reserved – used for test.
Reserved – used for test.
Reserved – used for test.
Reserved – defined on the transceiver version (CC1101).
Reserved – defined on the transceiver version (CC1101).
Reserved – used for test.
Reserved – used for test.
Reserved – used for test.
PA_PD. PA is enabled when 1, in power-down when 0.
Reserved – defined on the transceiver version (CC1101).
Reserved – defined on the transceiver version (CC1101).
Reserved – used for test.
Reserved – used for test.
Reserved – used for test.
Reserved – used for test.
Reserved – used for test.
Reserved – used for test.
Reserved – defined on the transceiver version (CC1101).
Reserved – defined on the transceiver version (CC1101).
Reserved – used for test.
Reserved – defined on the transceiver version (CC1101).
Reserved – used for test.
CHIP_RDYn.
Reserved – used for test.
XOSC_STABLE.
Reserved – used for test.
GDO0_Z_EN_N. When this output is 0, GDO0 is configured as input (for serial TX data).
High impedance (3-state).
HW to 0 (HW1 achieved by setting GDOx_INV=1).
CLK_XOSC/1
CLK_XOSC/1.5
CLK_XOSC/2
CLK_XOSC/3
CLK_XOSC/4
Note: There are 2 GDO pins, but only one CLK_XOSC/n can be selected as an output at any
CLK_XOSC/6
time. If CLK_XOSC/n is to be monitored on one of the GDO pins, the other GDO pin must be
CLK_XOSC/8
configured to values less than 0x30. The GDO0 default value is CLK_XOSC/192.
CLK_XOSC/12
CLK_XOSC/16
CLK_XOSC/24
CLK_XOSC/32
CLK_XOSC/48
CLK_XOSC/64
CLK_XOSC/96
CLK_XOSC/128
CLK_XOSC/192
To optimize RF performance, these signals should not be used while the radio is in TX mode.
Table 24: GDO signal selection(x = 0 or 1)
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CC1150
23 Asynchronous and Synchronous Serial Operation
Several features and modes of operation have
been included in the CC1150 to provide
backward compatibility with previous Chipcon
products and other existing RF communication
systems. For new systems, it is recommended
to use the built-in packet handling features, as
they can give more robust communication,
significantly offload the microcontroller and
simplify software development.
23.1 Asynchronous Serial Operation
For backward compatibility with systems
already using the asynchronous data transfer
from other Chipcon products, asynchronous
transfer is also included in CC1150.
Setting
PKTCTRL0.PKT_FORMAT
to
3
enables asynchronous transparent (serial)
mode. In TX, the GDO0 pin is used for data
input (TX data).
When asynchronous transfer is enabled,
several of the support mechanisms for the
MCU that are included in CC1150 will be
disabled, such as packet handling hardware,
buffering in the FIFO and so on. The
asynchronous transfer mode does not allow
the use of the data whitener, interleaver and
FEC, and it is not possible to use Manchester
encoding. MSK is not supported for
asynchronous transfer.
The MCU must control start and stop of
transmit with the STXand SIDLEstrobes.
The CC1150 modulator samples the level of the
asynchronous input 8 times faster than the
programmed data rate. The timing requirement
for the asynchronous stream is that the error in
the bit period must be less than one eighth of
the programmed data rate.
23.2 Synchronous Serial Operation
If preamble and sync word is disabled, all
other packet handler features and FEC should
also be disabled. The MCU must then handle
preamble and sync word insertion in software.
Setting
PKTCTRL0.PKT_FORMAT
to
1
enables synchronous serial operation mode. In
this operational mode the data must be NRZ
encoded (MDMCFG2.MANCHESTER_EN=0). In
synchronous serial operation mode, data is
transferred on a two wire serial interface. The
CC1150 provides a clock that is used to set up
new data on the data input line. Data input (TX
data) is the GDO0 pin. This pin will
automatically be configured as an input when
TX is active. The TX latency is 8 bits.
If preamble and sync word insertion is left on,
all packet handling features and FEC can be
used. When using the packet handling
features synchronous serial mode, the CC1150
will insert the preamble and sync word and the
MCU will only provide the data payload. This is
equivalent to the recommended FIFO
operation mode.
Preamble and sync word insertion may or may
not be active, dependent on the sync mode set
by the MDMCFG3.SYNC_MODE.
24 System considerations and Guidelines
24.1 SRD Regulations
International regulations and national laws
regulate the use of radio receivers and
transmitters. Short Range Devices (SRDs) for
license free operation below 1 GHz are usually
operated in the 315 MHz, 433 MHz, 868 MHz
or 915 MHz frequency bands. The CC1150 is
specifically designed for such use with its 300-
348 MHz, 400-464 MHz and 800-928 MHz
operating ranges. The most important
regulations when using the CC1150 in the 315
MHz, 433 MHz, 868 MHz or 915 MHz
frequency bands are EN 300 220 (Europe)
and FCC CFR47 part 15 (USA). A summary of
the most important aspects of these
regulations can be found in AN001 [10].
Please note that compliance with regulations is
dependent on complete system performance.
It is the end product manufactor’s
SWRS037A
Page 39 of 60
CC1150
responsibility to ensure that the system
complies with regulations.
24.2 Frequency Hopping and Multi-Channel Systems
The 315 MHz, 433 MHz, 868 MHz or 915 MHz
bands are shared by many systems both in
industrial, office and home environments. It is
therefore recommended to use frequency
hopping spread spectrum (FHSS) or a multi-
channel protocol because the frequency
diversity makes the system more robust with
respect to interference from other systems
operating in the same frequency band. FHSS
also combats multipath fading.
can then be replaced by writing the FSCAL3,
FSCAL2 and FSCAL1 register values that
corresponds to the next RF frequency. The
PLL turn on time is approximately 90 µs. The
blanking interval between each frequency hop
is then approximately 90 µs.
3) Run calibration on a single frequency at
startup. Next write 0 to FSCAL3[5:4] to
disable the charge pump calibration. After
writing to FSCAL3[5:4], strobe STX with
CC1150 is highly suited for FHSS or multi-
channel systems due to its agile frequency
synthesizer and effective communication
interface. Using the packet handling support
and data buffering is also beneficial in such
systems as these features will significantly
offload the host controller.
MCSM0.FS_AUTOCAL=1
for
each
new
frequency hop. That is, VCO current and VCO
capacitance calibration is done, but not charge
pump current calibration. When charge pump
current calibration is disabled the calibration
time is reduced from approximately 720 µs to
approximately 150 µs. The blanking interval
between each frequency hop is then
approximately 240 µs.
Charge pump current, VCO current and VCO
capacitance array calibration data is required
for each frequency when implementing
frequency hopping for CC1150. There are 3
ways of obtaining the calibration data from the
chip:
There is a trade off between blanking time and
memory space needed for storing calibration
data in non-volatile memory. Solution 2) above
gives the shortest blanking interval, but
requires more memory space to store
calibration values. This solution also requires
that the supply voltage and temperature do not
vary much in order to have a robust solution.
Solution 3) gives approximately 570 µs smaller
blanking interval than solution 1).
1) Frequency hopping with calibration for each
hop. The PLL calibration time is approximately
720 µs. The blanking interval between each
frequency hop is then approximately 810 µs.
2) Fast frequency hopping without calibration
for each hop can be done by calibrating each
frequency at startup and saving the resulting
FSCAL3, FSCAL2 and FSCAL1 register values
in MCU memory. The VCO capacitance
calibration FSCAL1 register value must be
found for each RF frequency to be used. The
VCO current calibration value and the charge
pump current calibration value available in
FSCAL2 and FSCAL3 respectively are not
dependent on the RF frequency, so the same
value can therefore be used for all RF
frequencies for these two registers. Between
each frequency hop, the calibration process
The
recommended
settings
change
for
with
TEST0.VCO_SEL_CAL_EN
frequency. This means that one should always
use SmartRF Studio [11] to get the correct
settings for a specific frequency before doing a
calibration, regardless of which calibration
method is being used. It must be noted that
the content of the CC1150 is not retained in
SLEEP state, and thus it is necessary to write
to the TEST0 register, along with other
registers, when returning from the SLEEP
state and initiating calibrations.
24.3 Wideband Modulation not using Spread Spectrum
Digital modulation systems under FFC part
15.247 include FSK and GFSK modulation. A
maximum peak output power of 1W (+30 dBm)
is allowed if the 6 dB bandwidth of the
modulated signal exceeds 500 kHz. In
addition, the peak power spectral density
conducted to the antenna shall not be greater
than +8 dBm in any 3 kHz band.
Operating at high data rates and frequency
deviation the CC1150 is suited for systems
targeting compliance with digital modulation
system as defined by FFC part 15.247. An
external power amplifier is needed to increase
the output above +10 dBm. Please refer to
DN006 [5] for further details concerning
wideband modulation and CC1150.
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CC1150
24.4 Data Burst Transmissions
active mode, and hence also reduce the
average current consumption significantly.
Reducing the time in active mode will reduce
the likelihood of collisions with other systems
in the same frequency range.
The high maximum data rate of CC1150 opens
up for burst transmissions. A low average data
rate link (e.g. 10 kBaud), can be realized using
a higher over-the-air data rate. Buffering the
data and transmitting in bursts at high data
rate (e.g. 500 kBaud) will reduce the time in
24.5 Continuous Transmissions
limitation in the length of a transmission (open
loop modulation used in some transceivers
often prevents this kind of continuous data
streaming and reduces the effective data rate).
In data streaming applications the CC1150
opens up for continuous transmissions at 500
kBaud effective data rate. As the modulation is
done with a closed loop PLL, there is no
24.6 Low Cost Systems
Note that the crystal package strongly
influences the price. In a size constrained PCB
design a smaller, but more expensive, crystal
may be used.
As the CC1150 provides 500 kBaud multi-
channel performance without any external
filters, a very low cost system can be made. A
HC-49 type SMD crystal is used in the
CC1150EM reference design ([1] and [1]).
24.7 Battery Operated Systems
In low power applications, the SLEEP state
should be used when the CC1150 is not active.
24.8 Increasing Output Power
In some applications it may be necessary to
extend the link range. Adding an external
power amplifier is the most effective way of
doing this.
The power amplifier should be inserted
between the antenna and the balun as shown
in Figure 23.
Figure 23 Block Diagram of CC1150 Usage with External Power Amplifier
SWRS037A
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CC1150
25 Configuration Registers
The TX FIFO is accessed through one 8-bit
register. Only write operations are allowed to
the TX FIFO.
The configuration of CC1150 is done by
programming 8-bit registers. The configuration
data based on selected system parameters
are most easily found by using the SmartRF
Studio [11] software. Complete descriptions of
the registers are given in the following tables.
After chip reset, all the registers have default
values as shown in the tables. The optimum
register setting might differ from the default
value. After a reset, all registers that shall be
different from the default value therefore needs
to be programmed through the SPI interface.
During the address transfer and while writing
to a register or the TX FIFO, a status byte is
returned. This status byte is described in Table
16 on page.20.
Table 28 summarizes the SPI address space.
Registers that are only defined on the CC1101
transceiver are also listed. CC1101 and CC1150
are register compatible, but registers and fields
only implemented in the transceiver always
contain 0 in CC1150.
There are 9 Command Strobe Registers, listed
in Table 25 Accessing these registers will
initiate the change of an internal state or
mode. There are 29 normal 8-bit Configuration
Registers, listed in Table 26. Many of these
registers are for test purposes only, and need
not be written for normal operation of CC1150.
The address to use is given by adding the
base address to the left and the burst and
read/write bits on the top. Note that the burst
bit has different meaning for base addresses
above and below 0x2F.
There are also 6 Status registers, which are
listed in Table 27. These registers, which are
read-only, contain information about the status
of CC1150.
Address Strobe Name Description
0x30
0x31
SRES
Reset chip.
SFSTXON
Enable and calibrate frequency synthesizer (if MCSM0.FS_AUTOCAL=1).
0x32
0x33
SXOFF
SCAL
Turn off crystal oscillator.
Calibrate frequency synthesizer and turn it off (enables quick start). SCAL can be strobed in
IDLE state without setting manual calibration mode (MCSM0.FS_AUTOCAL=0)
0x35
STX
Enable TX. Perform calibration first if MCSM0.FS_AUTOCAL=1.
Exit TX and turn off frequency synthesizer.
0x36
0x39
SIDLE
SPWD
Enter power down mode when CSngoes high.
0x3B
0x3D
SFTX
Flush the TX FIFO buffer.
SNOP
No operation. May be used to pad strobe commands to two bytes for simpler software.
Table 25: Command Strobes
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CC1150
Address
Register
Description
Details on page number
45
45
GDO1output pin configuration
0x01
IOCFG1
GDO0output pin configuration
FIFO threshold
0x02
0x03
0x04
0x05
0x06
0x08
0x09
0x0A
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x17
0x18
0x22
0x23
0x24
0x25
0x26
0x29
0x2A
0x2C
0x2D
0x2E
IOCFG0
FIFOTHR
SYNC1
45
46
46
46
46
47
47
47
47
47
47
48
49
50
50
51
51
52
52
53
53
53
53
54
54
54
54
54
Sync word, high byte
SYNC0
Sync word, low byte
PKTLEN
PKTCTRL0
ADDR
Packet length
Packet automation control
Device address
CHANNR
FREQ2
Channel number
Frequency control word, high byte
Frequency control word, middle byte
Frequency control word, low byte
Modulator configuration
FREQ1
FREQ0
MDMCFG4
MDMCFG3
MDMCFG2
MDMCFG1
MDMCFG0
DEVIATN
MCSM1
MCSM0
FREND0
FSCAL3
FSCAL2
FSCAL1
FSCAL0
FSTEST
PTEST
Modulator configuration
Modulator configuration
Modulator configuration
Modulator configuration
Modulator deviation setting
Main Radio Control State Machine configuration
Main Radio Control State Machine configuration
Front end TX configuration
Frequency synthesizer calibration
Frequency synthesizer calibration
Frequency synthesizer calibration
Frequency synthesizer calibration
Frequency synthesizer calibration control
Production test
TEST2
Various test settings
TEST1
Various test settings
TEST0
Various test settings
Table 26: Configuration Registers Overview
Address
Register
Description
Details on page number
55
55
55
56
56
56
0x30 (0xF0)
0x31 (0xF1)
0x35 (0xF5)
0x38 (0xF8)
0x39 (0xF9)
0x3A (0xFA)
PARTNUM
VERSION
Part number for CC1150
Current version number
MARCSTATE
PKTSTATUS
VCO_VC_DAC
TXBYTES
Control state machine state
Current GDOx status and packet status
Current setting from PLL calibration module
Underflow and number of bytes in the TX FIFO
Table 27: Status Registers Overview
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CC1150
Write
Read
Single byte
+0x80
Single byte
+0x00
Burst
+0x40
Burst
+0xC0
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x30
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0x38
0x39
0x3A
0x3B
0x3C
0x3D
0x3E
0x3F
IOCFG2
IOCFG1
IOCFG0
FIFOTHR
SYNC1
SYNC0
PKTLEN
PKTCTRL1
PKTCTRL0
ADDR
CHANNR
FSCTRL1
FSCTRL0
FREQ2
FREQ1
FREQ0
MDMCFG4
MDMCFG3
MDMCFG2
MDMCFG1
MDMCFG0
DEVIATN
MCSM2
MCSM1
MCSM0
FOCCFG
BSCFG
AGCCTRL2
AGCCTRL1
AGCCTRL0
WOREVT1
WOREVT0
WORCTRL
FREND1
FREND0
FSCAL3
FSCAL2
FSCAL1
FSCAL0
RCCTRL1
RCCTRL0
FSTEST
PTEST
AGCTEST
TEST2
TEST1
TEST0
SRES
SFSTXON
SXOFF
SCAL
SRES
PARTNUM
VERSION
FREQEST
LQI
SFSTXON
SXOFF
SCAL
SRX
STX
SRX
STX
RSSI
MARCSTATE
WORTIME1
WORTIME0
PKTSTATUS
VCO_VC_DAC
TXBYTES
RXBYTES
SIDLE
SAFC
SWOR
SPWD
SFRX
SFTX
SWORRST
SNOP
SIDLE
SAFC
SWOR
SPWD
SFRX
SFTX
SWORRST
SNOP
PATABLE
TX FIFO
PATABLE
TX FIFO
PATABLE
RX FIFO
PATABLE
RX FIFO
Table 28: SPI Address Space (greyed text: not implemented on CC1150 thus only valid for the
transceiver version (CC1101))
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CC1150
25.1 Configuration Register Details
0x01: IOCFG1 – GDO1 output pin configuration
Bit
Field Name
Reset
R/W Description
7
GDO_DS
0
R/W Set high (1) or low (0) output drive strength on the
GDO pins.
6
0
R/W Invert output, i.e. select active low (1) / high (0).
R/W Default is tri-state (See Table 24 on page 38).
GDO1_INV
5:0
46 (0x2E)
GDO1_CFG[5:0]
0x02: IOCFG0 – GDO0 output pin configuration
Bit
Field Name
Reset
R/W
Description
7
TEMP_SENSOR_ENABLE
0
R/W
Enable analog temperature sensor. Write 0 in all other
register bits when using temperature sensor.
6
0
R/W
R/W
Invert output, i.e. select active low (1) / high (0).
GDO0_INV
5:0
63 (0x3F)
Default is CLK_XOSC/192 (See Table 24 on page 38).
GDO0_CFG[5:0]
It is recommended to disable the clock output during
initialization in order to optimize RF performance.
0x03: FIFOTHR – FIFO threshold
Bit
Field Name
Reset
R/W
Description
7:4
Reserved
0
R/W
Write 0 for compatibility with possible future
extensions.
3:0
FIFO_THR[3:0]
7 (0x07)
R/W
Set the threshold for the TX FIFO. The threshold is
exceeded when the number of bytes in the FIFO is
equal to or higher than the threshold value.
Setting
0 (0000)
1 (0001)
2 (0010)
3 (0011)
4 (0100)
5 (0101)
6 (0110)
7 (0111)
8 (1000)
9 (1001)
10 (1010)
11 (1011)
12 (1100)
13 (1101)
14 (1110)
15 (1111)
Bytes in TX FIFO
61
57
53
49
45
41
37
33
29
25
21
17
13
9
5
1
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CC1150
0x04: SYNC1 – Sync word, high byte
Bit
Field Name
Reset
R/W
Description
7:0
SYNC[15:8]
211 (0xD3)
R/W
8 MSB of 16-bit sync word.
0x05: SYNC0 – Sync word, low byte
Bit
Field Name
Reset
R/W
Description
7:0
SYNC[7:0]
145 (0x91)
R/W
8 LSB of 16-bit sync word.
0x06: PKTLEN – Packet length
Bit
Field Name
Reset
R/W
Description
7:0 PACKET_LENGTH
255 (0xFF)
R/W
Indicates the packet length when fixed length packets are
enabled. If variable packet length mode is used, this value
indicates the maximum packet length allowed.
0x08: PKTCTRL0 – Packet automation control
Bit
Field Name
Reset
R/W
Description
7
6
R0
Not Used.
WHITE_DATA
1
R/W
Turn data whitening on / off
0: Whitening off
1: Whitening on
5:4 PKT_FORMAT[1:0]
0
R/W
Format of TX data
Setting Packet format
0 (00)
1 (01)
Normal mode, use TX FIFO
Serial Synchronous mode, data in on GDO0
Random TX mode; sends random data using PN9
generator. Used for test/debug.
2 (10)
3 (11)
Asynchronous transparent mode. Data in on GDO0
3
0
1
R/W
R/W
Not used.
2
CRC_EN
1: CRC calculation enabled
0: CRC disabled
1:0 LENGTH_
CONFIG[1:0]
1
R/W
Configure the packet length
Setting Packet length configuration
0 (00)
Fixed length packets, length configured in
PKTLEN register
1 (01)
Variable length packets, packet length configured
by the first byte after sync word
2 (10)
3 (11)
Infinite packet length packets
Reserved
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CC1150
0x09: ADDR – Device address
Bit
Field Name
Reset
R/W
Description
7:0
DEVICE_ADDRESS
[7:0]
0
R/W
Address used for packet filtration. Optional broadcast addresses are
0 (0x00) and 255 (0xFF).
0x0A: CHANNR – Channel number
Bit
Field Name
Reset
R/W
Description
7:0
CHAN[7:0]
0
R/W
The 8-bit unsigned channel number, which is multiplied by the
channel spacing setting and added to the base frequency.
0x0D: FREQ2 – Frequency control word, high byte
Bit
Field Name
Reset
R/W
Description
7:6 FREQ[23:22]
5:0 FREQ[21:16]
0
R
FREQ[23:22] is always 0 (the FREQ2 register is less than 36 with 26
MHz or higher crystal frequency).
30 (0x1E)
R/W
FREQ[23:0] is the base frequency for the frequency synthesiser in
increments of FXOSC/216.
fXOSC
216
fcarrier
=
⋅ FREQ
[
23 : 0
]
0x0E: FREQ1 – Frequency control word, middle byte
Bit
Field Name
Reset
R/W
Description
7:0 FREQ[15:8]
196
R/W
Ref. FREQ2 register.
(0xC4)
0x0F: FREQ0 – Frequency control word, low byte
Bit
Field Name
Reset
R/W
Description
7:0 FREQ[7:0]
236
R/W
Ref. FREQ2 register.
(0xEC)
0x10: MDMCFG4 – Modulator configuration
Bit
Field Name
Reset
R/W
Description
7:4
3:0
Reserved
8 (0x08)
R0
Defined on the transceiver version (CC1101).
DRATE_E[3:0]
12 (0x0C)
R/W
The exponent of the user specified symbol rate.
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CC1150
0x11: MDMCFG3 – Modulator configuration
Bit
Field Name
Reset
R/W
Description
7:0
DRATE_M[7:0]
34 (0x22)
R/W
The mantissa of the user specified symbol rate. The symbol
rate is configured using an unsigned, floating-point number
with 9-bit mantissa and 4-bit exponent. The 9th bit is a hidden
‘1’. The resulting data rate is:
256 + DRATE _ M
)
⋅ 2DRATE _ E
RDATA
=
⋅ fXOSC
228
The default values give a data rate of 115.051 kBaud (closest
setting to 115.2 kBaud), assuming a 26.0 MHz crystal.
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CC1150
0x12: MDMCFG2 – Modulator configuration
Bit
Field Name
Reset
R/W
Description
7
Reserved
0
0
R0
Defined on the transceiver version (CC1101).
6:4
MOD_FORMAT[2:0]
R/W
The modulation format of the radio signal
Setting
0 (000)
1 (001)
2 (010)
3 (011)
4 (100)
5 (101)
6 (110)
7 (111)
Modulation format
2-FSK
GFSK
-
ASK/OOK
-
-
-
MSK
The OOK/ASK pulse shaping feature is only supported for
output powers up to -1 dBm.
MSK is only supported for data rates above 26 kBaud.
Enables Manchester encoding/decoding.
0 = Disable
3
MANCHESTER_EN
SYNC_MODE[2:0]
0
2
R/W
R/W
1 = Enable
2:0
Combined sync-word qualifier mode.
The values 0 (000) and 4 (100) disables preamble and sync
word transmission. The values 1 (001), 2 (001), 5 (101) and 6
(110) enables 16-bit sync word transmission. The values 3
(011) and 7 (111) enables repeated sync word transmission.
The table below lists the meaning of each mode (for
compatibility with the CC1101 transceiver):
Setting
0 (000)
1 (001)
2 (010)
3 (011)
4 (100)
Sync-word qualifier mode
No preamble/sync word
15/16 sync word bits detected
16/16 sync word bits detected
30/32 sync word bits detected
No preamble/sync, carrier-sense
above threshold
5 (101)
6 (110)
7 (111)
15/16 + carrier-sense above threshold
16/16 + carrier-sense above threshold
30/32 + carrier-sense above threshold
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CC1150
0x13: MDMCFG1 – Modulator configuration
Bit
Field Name
Reset
R/W
Description
7
FEC_EN
0
R/W
Enable Forward Error Correction (FEC) with interleaving for
packet payload
0 = Disable
1 = Enable (Only supported for fixed packet length mode, i.e.
PKTCTRL0.LENGTH_CONFIG=0)
6:4
NUM_PREAMBLE[2:0]
2
R/W
Sets the minimum number of preamble bytes to be transmitted
Setting
0 (000)
1 (001)
2 (010)
3 (011)
4 (100)
5 (101)
6 (110)
7 (111)
Not Used.
Number of preamble bytes
2
3
4
6
8
12
16
24
3:2
1:0
R0
CHANSPC_E[1:0]
2
R/W
2 bit exponent of channel spacing.
0x14: MDMCFG0 – Modulator configuration
Bit
Field Name
Reset
R/W
Description
7:0
CHANSPC_M[7:0]
248 (0xF8)
R/W
8-bit mantissa of channel spacing (initial 1 assumed). The
channel spacing is multiplied by the channel number CHAN and
added to the base frequency. It is unsigned and has the format:
fXOSC
218
∆fCHANNEL
=
⋅
(
256 + CHANSPC _ M
⋅2CHANSPC _ E ⋅CHAN
)
The default values give 199.951 kHz channel spacing (the
closest setting to 200 kHz), assuming 26.0 MHz crystal
frequency.
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CC1150
0x15: DEVIATN – Modulator deviation setting
Bit Field Name
Reset
R/W
Description
7
R0
Not Used.
6:4 DEVIATION_E[2:0]
4
7
R/W
R0
Deviation exponent.
Not Used.
3
2:0 DEVIATION_M[2:0]
R/W
When MSK modulation is enabled:
Specifies the fraction of symbol period (1/8-8/8) during which a
phase change occurs (‘0’: +90deg, ‘1’:-90deg). Refer to the
SmartRF Studio [11] software for correct DEVIATN setting when
using MSK.
When 2-FSK/GFSK modulation is enabled:
Deviation mantissa, interpreted as a 4-bit value with MSB implicit
1. The resulting frequency deviation is given by:
fxosc
217
fdev
=
⋅(8 + DEVIATION _ M )⋅2DEVIATION _ E
The default values give ±47.607 kHz deviation, assuming 26.0
MHz crystal frequency.
When ASK/OOK modulation is enabled:
This setting has no effect.
0x17: MCSM1 – Main Radio Control State Machine configuration
Bit Field Name
Reset
R/W
Description
7:6
R0
Not Used.
5:2 Reserved
1:0 TXOFF_MODE[1:0]
12 (0x0C)
0
R0
Defined on the transceiver version (CC1101).
Select what should happen when a packet has been sent (TX)
R/W
Setting
0 (00)
1 (01)
2 (10)
3 (11)
Next state after finishing packet transmission
IDLE
FSTXON
Stay in TX (start sending preamble)
Do not use, not implemented on CC1150
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CC1150
0x18: MCSM0 – Main Radio Control State Machine configuration
Bit
Field Name
Reset
R/W
Description
7:6
5:4
R0
Not Used.
FS_AUTOCAL[1:0]
0)
R/W
Automatically calibrate when going to TX, or back to IDLE
Setting When to perform automatic calibration
0 (00)
1 (01)
2 (10)
3 (11)
Never (manually calibrate using SCALstrobe)
When going from IDLE to TX (or FSTXON)
When going from TX back to IDLE
Every 4th time when going from TX to IDLE
3:2
PO_TIMEOUT
1
R/W
Programs the number of times the six-bit ripple counter must expire
after XOSC has stabilized before CHP_RDY_N goes low.
The XOSC is off during power-down and if the regulated digital
supply voltage has sufficient time to stabilize while waiting for the
crystal to be stable, PO_TIMEOUT can be set to 0. For robust
operation it is recommended to use PO_TIMEOUT=2.
Setting Expire count
Timeout after XOSC start
Approx. 2.3 µs – 2.7 µs
Approx. 37 µs – 43 µs
Approx. 146 µs – 171 µs
Approx. 585 µs – 683 µs
0 (00)
1 (01)
2 (10)
3 (11)
1
16
64
256
Exact timeout depends on crystal frequency.
In order to reduce start up time from the SLEEP state, this field is
preserved in powerdown (SLEEP state).
1:0
Reserved
R0
Defined on the transceiver version (CC1101)
0x22: FREND0 – Front end TX configuration
Bit
Field Name
Reset
R/W
Description
7:6
5:4
R0
Not Used.
LODIV_BUF_
1
R/W
Adjusts current TX LO buffer (input to PA). The value to use in
register field is given by the SmartRF Studio [11] software.
CURRENT_TX[1:0]
3
R0
Not Used.
2:0
PA_POWER[2:0]
0
R/W
Selects PA power setting. This value is an index to the PATABLE,
which can be programmed with up to 8 different PA settings. In
ASK mode, this selects the PATABLE index to use when
transmitting a ‘1’. PATABLE index zero is used in ASK when
transmitting a ‘0’. The PATABLE settings from index ‘0’ to the
PA_POWER value are used for ASK TX shaping, and for power
ramp-up/ramp-down at the start/end of transmission in all TX
modulation formats.
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CC1150
0x23: FSCAL3 – Frequency synthesizer calibration
Bit
Field Name
Reset
R/W
Description
7:6
FSCAL3[7:6]
2 (0x02)
R/W
Frequency synthesizer calibration configuration. The value
to write in this field before calibration is given by the
SmartRF® Studio software.
5:4
3:0
CHP_CURR_CAL_EN[1:0]
FSCAL3[3:0]
2 (0x02)
9 (0x09)
R/W
R/W
Disable charge pump calibration stage when 0.
Frequency synthesizer calibration result register. Digital bit
vector defining the charge pump output current, on an
exponential scale: I_OUT = I0·2FSCAL3[3:0]/4
Fast frequency hopping without calibration for each hop can
be done by calibrating upfront for each frequency and
saving the resulting FSCAL3, FSCAL2 and FSCAL1 register
values. Between each frequency hop, calibration can be
replaced by writing the FSCAL3, FSCAL2 and FSCAL1
register values corresponding to the next RF frequency.
0x24: FSCAL2 – Frequency synthesizer calibration
Bit
Field Name
Reset
R/W
Description
7:6
5
R0
Not Used.
VCO_CORE_H_EN
0
R/W
R/W
Choose high (1)/ low (0) VCO.
5:0 FSCAL2[5:0]
10 (0x0A)
Frequency synthesizer calibration result register. VCO
current calibration result and override value.
Fast frequency hopping without calibration for each hop can
be done by calibrating upfront for each frequency and saving
the resulting FSCAL3, FSCAL2 and FSCAL1 register values.
Between each frequency hop, calibration can be replaced by
writing the FSCAL3, FSCAL2 and FSCAL1 register values
corresponding to the next RF frequency.
0x25: FSCAL1 – Frequency synthesizer calibration
Bit
Field Name
Reset
R/W
Description
7:6
R0
Not Used.
5:0 FSCAL1[5:0]
32 (0x20)
R/W
Frequency synthesizer calibration result register. Capacitor
array setting for VCO coarse tuning.
Fast frequency hopping without calibration for each hop can
be done by calibrating upfront for each frequency and saving
the resulting FSCAL3, FSCAL2 and FSCAL1 register values.
Between each frequency hop, calibration can be replaced by
writing the FSCAL3, FSCAL2 and FSCAL1 register values
corresponding to the next RF frequency.
0x26: FSCAL0 – Frequency synthesizer calibration
Bit
Field Name
Reset
R/W
Description
7
Reserved
R0
Not Used.
6:0 FSCAL0[6:0]
13 (0x0D)
R/W
Frequency synthesizer calibration control. The value to use in
register field is given by the SmartRF Studio [11] software.
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CC1150
0x29: FSTEST – Frequency synthesizer calibration control
Bit
Field Name
Reset
R/W
Description
7:0 FSTEST[7:0]
87 (0x57) R/W
For test only. Do not write to this register.
0x2A: PTEST – Production test
Bit
Field Name
Reset
R/W
Description
7:0 PTEST[7:0]
127
(0x7F)
R/W
Writing 0xBF to this register makes the on-chip temperature sensor
available in the IDLE state. The default 0x7F value should then be
written back before leaving the IDLE state. Other use of this register is
for test only.
0x2C: TEST2 – Various test settings
Bit
Field Name
Reset
R/W
Description
7:0 TEST2[7:0]
R/W
The value to use in this register is given by the SmartRF Studio [11]
software.
0x2D: TEST1 – Various test settings
Bit
Field Name
Reset
R/W
Description
7:0 TEST1[7:0]
49
(0x21)
R/W
The value to use in this register is given by the SmartRF Studio [11]
software.
0x2E: TEST0 – Various test settings
Bit
Field Name
Reset
R/W
Description
7:2 TEST0[7:2]
2(0x02)
R/W
The value to use in this register is given by the SmartRF Studio [11]
software.
1
0
VCO_SEL_CAL_EN
1
1
R/W
R/W
Enable VCO selection calibration stage when 1. The value to use in
this register is given by the SmartRF Studio [11] software.
TEST0[0]
The value to use in this register is given by the SmartRF Studio [11]
software.
SWRS037A
Page 54 of 60
CC1150
25.2 Status register details
0x30 (0xF0): PARTNUM – Chip ID
Bit
Field Name
Reset
R/W
Description
7:0 PARTNUM[7:0]
2 (0x02)
R
Chip part number.
0x31 (0xF1): VERSION – Chip ID
Bit
Field Name
Reset
R/W
Description
7:0 VERSION[7:0]
4 (0x04)
R
Chip version number.
0x35 (0xF5): MARCSTATE – Main Radio Control State Machine state
Bit
Field Name
Reset
R/W
Description
7:5 Reserved
R0
R
4:0 MARC_STATE[4:0]
Main Radio Control FSM State
Value
State name
SLEEP
State (Figure 16, page 30)
0 (0x00)
1 (0x01)
2 (0x02)
3 (0x03)
4 (0x04)
5 (0x05)
6 (0x06)
7 (0x07)
8 (0x08)
9 (0x09)
10 (0x0A)
11 (0x0B)
SLEEP
IDLE
IDLE
XOFF
XOFF
VCOON_MC
REGON_MC
MANCAL
VCOON
MANCAL
MANCAL
MANCAL
FS_WAKEUP
FS_WAKEUP
CALIBRATE
SETTLING
SETTLING
N/A
REGON
STARTCAL
BWBOOST
FS_LOCK
N/A
12 (0x0C) ENDCAL
13 (0x0D) N/A
CALIBRATE
N/A
14 (0x0E)
15 (0x0F)
16 (0x10)
17 (0x11)
18 (0x12)
19 (0x13)
20 (0x14)
21 (0x15)
22 (0x16)
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
FSTXON
TX
FSTXON
TX
TX_END
N/A
TX
N/A
TX_UNDERFLOW TX_UNDERFLOW
Note: it is not possible to read back the SLEEP or XOFF state
numbers because setting CSn low will make the chip enter the
IDLE mode from the SLEEP or XOFF states.
SWRS037A
Page 55 of 60
CC1150
0x38 (0xF8): PKTSTATUS – Current GDOx status
Bit
Field Name
Reset
R/W
Description
7:2 Reserved
1
R0
R0
R
Defined on the transceiver version (CC1101).
Not Used.
0
GDO0
Current GDO0value. Note: the reading gives the non-inverted
value irrespective what IOCFG0.GDO0_INVis programmed to.
It is not recommended to check for PLL lock by reading
PKTSTATUS[0]with GDO0_CFG= 0x0A.
0x39 (0xF9): VCO_VC_DAC – Current setting from PLL calibration module
Bit
Field Name
Reset
R/W
Description
7:0 VCO_VC_DAC[7:0]
R
Status registers for test only.
0x3A (0xFA): TXBYTES – Underflow and number of bytes
Bit
Field Name
Reset
R/W
Description
7
TXFIFO_UNDERFLOW
R
R
6:0 NUM_TXBYTES
Number of bytes in TX FIFO.
SWRS037A
Page 56 of 60
CC1150
26 Package Description (QLP 16)
26.1 Recommended PCB layout for package (QLP 16)
Figure 24: Recommended PCB layout for QLP 16 package
Note: The figure is an illustration only and not to scale. There are five 10 mil diameter via holes
distributed symmetrically in the ground pad under the package. See also the CC1150EM
reference design ([1] and [2]).
26.2 Soldering information
The recommendations for lead-free reflow in IPC/JEDEC J-STD-020 should be followed.
SWRS037A
Page 57 of 60
CC1150
27 References
[1]
[2]
[3]
CC1150EM 315 - 433 MHz Reference Design www.ti.com/lit/zip/swrr041
CC1150EM 868 - 915 MHz Reference Design www.ti.com/lit/zip/swrr042
DN012 Programming Output Power on CC1100 and CC1150
www.ti.com/lit/swra150
[4]
AN039 Using the CC1100/CC1150 in the European 433 and 868 MHz ISM Bands
www.ti.com/lit/swra054
[5]
[6]
[7]
[8]
[9]
[10]
DN006 CC11xx Settings for FCC 15.247 Solutions www.ti.com/lit/swra123
DN017 CC11xx 868/915 MHz Matching www.ti.com/lit/swra168
AN058 Antenna Selection Guide www.ti.com/lit/swra161
CC1150 Errata Notes www.ti.com/lit/swrz018
DN501 PATABLE Access www.ti.com/lit/swra110
AN001 SRD Regulations for Licence Free Transceiver Operation
www.ti.com/lit/swra090
[11]
[12]
SmartRF Studio http://www.ti.com/smartrfstudio
CC1100/CC1150DK& CC2500/CC2550DK Development Kit Examples and Libraries User
Manual www.ti.com/lit/swru109
SWRS037A
Page 58 of 60
CC1150
28 General Information
28.1 Document History
Revision
Date
Description/Changes
SWRS037A 2009-07-20
•
•
•
•
•
•
•
•
•
•
•
Changed title of the datasheet
Updated from preliminary datasheet to active
Removed “Chipcon Products from Texas Instruments” Logo
Generally updated text, edited and formatted text
Added Voltage ramp-up and ESD info in Table 1
Moved the General Characteristics before the Electrical Specifications
Updated data rate and modulation info in Table 3
Added links to reference designs
Updated numbers in Table 4 and added link to DN012
Added links to AN039 and DN006
Added information regarding load impedance, TX harmonics and spurious
emission information and TX latency in Table 5
•
Added information regarding crystal load capacitance and changed start-up
time in Table 6
•
•
•
Added phase noise information in Table 7
Updated information regarding the analog temperature sensor in Table 8
Updated the application circuit figures and corresponding information and
tables in section 7
•
Moved and added figures and information regarding the crystal to section
7.3 and regarding using an external reference signal instead of a crystal in
section 7.4, removed information regarding SmartRF Studio and crystal
choice
•
•
Added information regarding the 699 MHz filter and wire wound inductors in
section 7.5 and added link to DN017
Added information regarding the 699 MHz filter and wire wound inductors in
section 7.5 and added link to DN017
•
•
Added section 7.7 and link to AN058
Added section regarding PCB layout recommendations (section 7.8) and
Figure 6
•
•
Updated Figure 7
Updated SmartRF Studio appearance figure and added information on
where to find default configuration register values
•
•
•
•
•
•
•
•
Added more information in section 10
Moved Figure 9 and added Figure 11 and Table 15 and Table 16.
Added section 10.3 SPI Read and link to the CC1150 Errata Notes
Added information in section 10.4 and Figure 10
Added link to DN501 and output power limit when using ASK
Added section 11.3 and Table 17
Added Table 18
Added more information in section 13 (recommended number of preamble
and sync word bytes, not turn of TX during first part of a byte, how to leave
TXFIFO UNDERFLOW etc)
•
Added section 13.4
SWRS037A
Page 59 of 60
CC1150
Revision
Date
Description/Changes
Added more information in section 14
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Added Figure 12
Added Table 19
Added more information in section 15 and updated Figure 15
Updated section 16.1 and added Figure 17
Added information regarding the PLL lock signal in section 19
Updated section 21, Table 22 and Table 23 and added Figure 22
Updated Table 24
Added more information in section 23
Added section 24 and link to AN001
Updated section 25 and register descriptions
Changed IOCFG0 – GDO0output pin configuration description
Changed MDMCFG2 – Modulator configuration description
Updated the FSCAL registers and TEST registers
Replaced old Chipcon packet information with the TI packet information and
updated this to fit TI formatting.
•
•
•
Added reference to SmartRF Studio website
Link to swru109
Added the Reference Chapter
1.1
1.0
2005-06-27 Added matching information. Added information about using a reference signal instead
of a crystal.
2005-04-20 First preliminary data sheet release
Table 29: Document History
SWRS037A
Page 60 of 60
PACKAGE OPTION ADDENDUM
www.ti.com
11-Apr-2013
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan Lead/Ball Finish
MSL Peak Temp
Op Temp (°C)
Top-Side Markings
Samples
Drawing
Qty
(1)
(2)
(3)
(4)
CC1150-RTR1
ACTIVE
VQFN
RST
16
2500
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
-40 to 85
CC1150
CC1150-RTY1
CC1150RST
ACTIVE
ACTIVE
ACTIVE
ACTIVE
VQFN
VQFN
VQFN
VQFN
RST
RST
RST
RST
16
16
16
16
490
490
TBD
TBD
TBD
Call TI
Call TI
Call TI
Call TI
-40 to 85
-40 to 85
-40 to 85
-40 to 85
CC1150
CC1150
CC1150
CC1150
CC1150RSTG3
CC1150RSTR
490
Call TI
Call TI
2500
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
CC1150RSTRG3
ACTIVE
VQFN
RST
16
2500
Green (RoHS
& no Sb/Br)
CU NIPDAU
Level-3-260C-168 HR
-40 to 85
CC1150
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4)
Multiple Top-Side Markings will be inside parentheses. Only one Top-Side Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a
continuation of the previous line and the two combined represent the entire Top-Side Marking for that device.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
11-Apr-2013
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Mar-2013
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
CC1150RSTR
VQFN
RST
16
2500
330.0
12.4
4.3
4.3
1.5
8.0
12.0
Q2
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
14-Mar-2013
*All dimensions are nominal
Device
Package Type Package Drawing Pins
VQFN RST 16
SPQ
Length (mm) Width (mm) Height (mm)
338.1 338.1 20.6
CC1150RSTR
2500
Pack Materials-Page 2
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相关型号：
CC1150RGVT
Highly integrated multichannel wireless transmitter designed for low-power wireless applications 16-VQFN -40 to 85
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