MGCR01QP1T [ZARLINK]
Dual Mode IF Receiver for TDMA/AMPS and CDMA/AMPS; 双模式如果接收机TDMA / AMPS和CDMA / AMPS
| 型号： | MGCR01QP1T |
| 厂家： | 
ZARLINK SEMICONDUCTOR INC |
| 描述： | Dual Mode IF Receiver for TDMA/AMPS and CDMA/AMPS |
| 文件： | 总12页 (文件大小：177K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MGCR01
Dual Mode IF Receiver for TDMA/AMPS and CDMA/AMPS
Datasheet
DS4721
ISSUE 4.4
November 2001
Features
Ordering Information
•
•
•
•
Dual IF Inputs 50 to 250 MHz
MGCR01/KG/QP1S
MGCR01/KG/QP1T
90dB AGC Gain Control
IQ demodulator
On chip oscillator provides high accuracy
quadrature LO generation
•
•
•
Optional IF Output
and differential I and Q baseband outputs. The
MGCR01 interfaces directly with MGCM01 for
TDMA/AMPS (using 60kHz low IF) and MGCM03 or
MGCM04 for CDMA and AMPS applications. The on
chip oscillator and prescaler are also compatible with
the PLL synthesisers on these devices.
3 Volt Power Supply
28 lead QSOP Package
Description
The MGCR01 is designed for use in dual mode
mobile phones (TDMA/AMPS and CDMA/AMPS).
The circuit provides IF amplification with gain control
FM IFIN
I OUT
CDMA IFIN
Q OU T
Gain
Control
Temperature
Comp.
AGC
DLL
BAND 1900
PRESCALER
Overload
Indicator
DIV2 EN
STARTUP
ENABLE
Mode
Control
VHF VCC
VHF VEE
MODE CDM
Figure 1 - Block Diagram
1
MGCR01
IF VCC
IF OUTB
IF OUT
IF VEE
VHF VCC
I OUTB
I OUT
VHF VEE
GND
CDMA IFIN
CDMA IFINB
FM IFIN
OVERLOAD DET
VHF RES
VHF RESB
BAND 1900
VHF BUF
FM IFINB
AGC
VHF BUFB
DIV2 EN
AGCB
MODE CDMA
ENABLE
GND
Q OUT
Q OUTB
STARTUP
QSOP28
Figure 2 - Pin Connections
Pin No.
Pin Name
Description
Supply for IF inputs and AGC blocks
1
2
IF VCC
IF OUTB
IF OUT
IF ouput
IF output
3
4
IF VEE
Ground for IF inputs and AGC blocks
Substrate ground
5
GND
6
CDMA IFIN
CDMA IFINB
FM IFIIN
FM IFINB
AGC
IF input (CDMA)
7
IF input (CDMA)
8
IF input (FM)
9
IF inputs (FM) (AC ground)
AGC Control for IF section
AGC control for IF sections (AC ground)
CDMA/FM input select
10
11
12
13
14
15
16
17
18
19
20
21
22
23
AGCB
MODE CDMA
ENABLE
GND
Power up AGC sections of device
Substrate Ground
STARTUP
QOUTB
Power up Oscillator, DLL and Mixer
Q channel baseband output
Q channel baseband output
Ground
QOUT
GND
VHF BUFB
VHF BUF
BAND 1900
VHF RESB
VHF RES
VHF oscillator buffered output for synthesiser
VHF oscillator buffered output for synthesiser
VHF oscillator mode (see table 1)
VHF VCO resonator
VHF VCO resonator
24
25
26
27
28
OVERLOAD DET
VHF VEE
I OUT
Overload detector output
Ground for VHF VCO and DLL blocks
I channel baseband output
I channel baseband output
Supply for VHF and DLL blocks
I OUTB
VHF VCC
Table 1 - Pin Description
2
MGCR01
X = Don’t Care
Description
ENABLE
STARTUP
MODE CDMA
BAND 1900
Conditions
Standby Mode
0
0
X
X
All circuits powered down
except logic inputs
Start up Mode
0
0
1
1
X
X
1
0
For high band IF
For low band IF
Turns on VCO circuits, DLL
quadrature generation,
prescaler and IQ
demodulator. All other
circuits remain powered
down
CDMA mode
1
1
1
1
1
1
1
0
For high band IF
For low band IF
All circuits operational
except for IF output buffer,
CDMA input stage selected.
FM Mode
1
1
0
0
All circuits operational
except for IF output buffer,
FM input stage selected.
Alternative FM
mode
1
1
1
0
0
1
1
Note 4
CDMA IF AGC
only mode
X
Demodulator and LO
generation circuitry powered
down. IF output buffer
enabled
FM IF AGC
1
0
0
X
Demodulator and LO
generation circuitry powered
down. IF output buffer
enabled.
Table 2 - Electrical Characteristics (Mode Control)
Notes:
1. STARTUP mode is provided to allow VCO/DLL/prescalers to stabilise before signal path is activated.
This is a power-saving feature since the signal path is redundant during this period. If this feature is not
required, the ENABLE and STARTUP control pins can be shorted together so that all circuitry is activated
at the same time.
2. In high band mode (Band 1900 = 1) the VCO operates at twice the IF frequency. For example if IF =
210.38MHz then the oscillator operates at 420.76MHz. A delay locked loop (DLL) circuit then generates the
quadrature LO signals.
3. In low band mode (Band 1900 = 0) the VCO operates at 4 times the IF frequency. for example if IF =
85.38MHz the oscillator operates at 341.52MHz. This is then divided and uses DLL circuit to provide the
quadrature LO signals.
4. This mode can be used for FM. The VCO operates at twice the LO frequency. This mode is not normally
used as a large tuning range is required on the VCO.
3
MGCR01
DLL and Prescaler divide ratios
The BAND 1900 and DIV2 EN inputs allow the overall divide ratio to control the total divide ratio in MGCR01 as
shown in the following table.
Prescaler Divide
BAND 1900
DIV2 EN
DLL Divide Ratio
Total Divide Ratio
Ratio
1
0
1
0
1
1
0
0
2
2
2
4
2
4
8
8
8
4
2
4
Table 3 - Prescaler Ratios
Notes:
if DIV2 EN is set low then the total divider ratio is always 8.
If DIV2 EN is set high then the prescaler divide ratio is always 2. For example with BAND 1900 high and if the
oscillator frequency is 300MHz, then the DLL output (the mixer LO frequency) will be 150MHz and the
prescaler output will be 75MHz.
Description
Supply Voltage
Min
Typ
Max
Units
Comments
4.0
+100
+125
+150
350
Volts
°C
Operation temperature, Tamb
Storage temperature, Tstg
Junction temperature, Tj
Power dissipation
-30
-40
Ambient temperature
°C
°C
mW
Volts
Volts
kV
Maximum Pin Voltage
Minimum Pin Voltage
ESD voltage
Vcc+0.6
All pins except VCC and GND
All pins except VCC and GND
Human Body Metal
-0.6
1.75
Table 4 - Absolute Maximum Ratings
Electrostatic handling precautions must be applied.
4
MGCR01
Tamb= 30°C to +70°C, VCC = +2.7 to +3.6. These characteristics are guaranteed by either production test or
design. They apply within the specified ambient temperature and supply voltage unless otherwise stated.
Value
Characteristic
Units
Conditions
Min
Typ
Max
General
Supply Voltage
2.7
-30
3.0
27
3.6
85
V
All VCC Pins
Operating Temperature
°C
Ambient See note 1
Current Consumption
Standby Mode
0.03
8
0.1
13
23
23
13
18
mA
mA
mA
mA
mA
mA
Startup Mode
CDMA Mode
14
14
8
FM Mode
CDMA AGC only Mode
FM AGC only Mode
11
Mode Control Logic
CMOS input logic high, VIH
CMOS input high current, IIH
CMOS input low current, IIL
Switching time between any two modes
AGC Control
VCC-0.5
-10
VCC+0.1
10
V
All logic inputs
All logic inputs
All logic inputs
µA
µA
ms
V
-10
10
3
0.1
2.6
AGC Input impedance
100
130
160
kΩ
DC Common Mode voltages
I OUT, I OUTB (CDMA Mode)
I OUTB, QOUTB
VCC-0.8
VCC-0.8
VCC-0.6
VCC-0.6
VCC-0.4
VCC-0.4
V
V
I OUT<Q OUT (FM Mode)
I OUTB, Q OUTB
Table 5 - Electrical Characteristics (DC specifications)
Notes:
1. Specifications are guaranteed over -30 to + 70°C, however operation is guaranteed over the extended
range of -30 to +85°C with minimal variation in specified parameters.
5
MGCR01
Tamb= 30°C to +70°C, VCC = +2.7 to +3.6. These characteristics are guaranteed by either production test or
design. They apply within the specified ambient temperature and supply voltage unless otherwise stated.
Frequency = 210.38MHz
Value
Characteristic
Units
Conditions
Min
Typ
Max
CDMA
Max Voltage Gain to demodulator
output
46
48
dB
AGC = 2.6v
Min Voltage Gain to demodulator output
Max Voltage Gain to IF buffer output
Min Voltage Gain to IF buffer output
AGC control Max
-55
41
-47
-49
0.1
90
dB
dB
AGC = 0.1V
IF mode
38
-51
dB
IF mode
2.6
V
Gain = Max
Gain = Min
AGC control Min
V
Gain slope
40
dB/V
dB/V
Gain slope linearity
6
Over gain control
range
Gain temperature stability
-2
2
dB
dB
Channel gain variation
@ 210.38MHz
-0.1
0.1
Within channel
bandwidth
(1.25MHz)
NFGainmax
5.5
6.5
dB
Rs (500Ω)
Input V1dBGainmin
104
-13
110
-7
dBµV
Minimum gain
dBm
Power (500Ω)
IIP3Gainmax
69
dBµV
Max gain
-48
dBm
Power (500Ω)
Input impedance
500
Ω
With addition of
external resistor
across IF inputs
IF Frequency
50
30
250
MHz
dB
CDMA to Amps isolation
Table 5 - Electrical Characteristics (DC specifications) - Continued
6
MGCR01
Tamb= 30°C to +70°C, VCC = +2.7 to +3.6. These characteristics are guaranteed by either production test or
design. They apply within the specified ambient temperature and supply voltage unless otherwise stated.
Frequency = 85.38MHz
Value
Characteristic
Units
Conditions
Min
Typ
Max
FM AGC
Max Voltage Gain to demodulator
output
50
54
dB
To demodulator
outputs
Min Voltage Gain to demodulator output
Max Voltage Gain to IF buffer output
Min Voltage Gain to IF buffer output
AGC control Max
-49
56
-42
-40
0.1
80
dB
dB
To demodulator
49
IF AGC only mode
IF AGC only mode
Gain = Gain max
Gain = Gain min
-48
dB
2.6
V
AGC control Min
V
Gain slope
40
dB/V
dB/V
Gain slope linearity
6
Over gain control
range
Gain temperature stability
NFGainmax
-2
2
6
dB
dB
For any gain setting
850Ωsource
Input V1dBGainmin
98
-17
65
105
-14
dBµV
dBm
dBµV
dBm
Ω
Minimum gain
Power (850Ω)
Max Gain
IIP3Gainmax
-54
Power (850Ω)
Input Impedance
850
With addition of
external resistor
across IF inputs
IF Frequency
50
250
MHz
VHF Local Oscillator
Quaderature generation
VCO Frequency
100
100
500
400
-98
MHz
MHz
Note 2
Note 3
VCO Phase noise
-100
dBc/Hz
@30kHz, Hiband
mode
Minimum tank Q=15
Note 1
VCO Noise floor
-130
100
dBc/Hz
mV
@>3MHz, Note 1
pk-pk single ended
Differential
VCO buffer output
350
VCO buffer output impedance
Ω
Table 5 - Electrical Characteristics (DC specifications) - Continued
Notes:
1. Phase noise is specified at the LO Input to the mixers.
2. Total divide ratio to prescaler output is 8.
3. Total divide ratio to prescaler ouput is 4. The prescaler output is limited to 100MHz max.
7
MGCR01
Tamb= 30°C to +70°C, VCC = +2.7 to +3.6. These characteristics are guaranteed by either production test or
design. They apply within the specified ambient temperature and supply voltage unless otherwise stated.
Value
Characteristic
Demodulator Ouput
Units
Conditions
Min
Typ
Max
I OUT, I OUTB,
Q OUT, Q OUTB
I/Q Gain matching
I/Q Phase matching
Output impedance
Baseband Bandwidth
0.1
0.5
4
0.25
dB
deg
kΩ
2
5
3
Differential
50
MHz
Defined by on-chip
first order low-pass
filter
Output IP3
117
119
dBµV
Baseband differential DC offset
Overload Detect
3.5
mV
Referred to
baseband outputs
CDMA
104
106
dBµV
dBµV
FM Mode
Table 5 - Electrical Characteristics (DC specifications) - Continued
8
MGCR01
Additional Information
Typical Performance Characteristics
60
40
20
0
T = -30 deg C
T = 25 deg C
T= 70 deg C
-20
-40
-60
0.00
0.50
1.00
1.50
2.00
2.50
3.00
AGC Control Voltage (V)
Figure 3 - CDMA Gain v AGC Voltage
60
40
20
T = -30 deg C
T = 25 deg C
T= 70 deg C
0
-20
-40
-60
0.00
0.50
1.00
1.50
2.00
2.50
3.00
AGC Control Voltage (V)
Figure 4 - FM Gain v AGC Voltage
9
MGCR01
60
40
20
0
VCC = 2.7
VCC = 3
VCC = 3.6
-20
-40
-60
0.00
0.50
1.00
1.50
2.00
2.50
3.00
AGC Control Voltage (V)
Figure 5 - CDMA Gain v AGC Voltage
60
40
20
0
VCC = 2.7
VCC = 3
VCC = 3.6
-20
-40
-60
0
0.5
1
1.5
2
2.5
3
AGC Control Voltage (V)
Figure 6 - FM Gain v AGC Voltage
10
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TECHNICAL DOCUMENTATION - NOT FOR RESALE
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