MAX41463EVKIT-915 [MAXIM]
Evaluates the MAX4146x Family of Sub-1GHz ISM Transmitters;型号: | MAX41463EVKIT-915 |
厂家: | MAXIM INTEGRATED PRODUCTS |
描述: | Evaluates the MAX4146x Family of Sub-1GHz ISM Transmitters ISM频段 |
文件: | 总44页 (文件大小:12856K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
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Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
General Description
Features
The MAX4146x evaluation kit (EV kit) contains a single
MAX4146x high output power VHF/UHF sub-GHz ISM/
SRD transmitter, designed to transmit Frequency-Shift
Keying (FSK), Gaussian GFSK or Amplitude-Shift Keying
(ASK) data in the 286MHz to 960MHz frequency range.
● Evaluates the MAX4146x Family of Sub-1GHz ISM
Transmitters
● Single Input Voltage Supply from 1.8V to 3.6V
● Direct Interface with a MAX32630FTHR ARM
Microcontroller (MCU) Board
The MAX41460 and the MAX41461–MAX41464
evaluation kits operate in conjunction with an external
microcontroller (MCU) and Graphical User Interface (GUI)
software running on a computer. The MAX41460 uses an
SPI interface for internal register configurations while the
MAX41461–MAX41464 can use the preset modes or an
● Available Pmod Hardware Interface
● Windows 7/10-compatible Software
● On-Board SPI Interface Control for the MAX41460 and
2
optional I C Control for the MAX41461–MAX41464
● GUI Controls for MAX32630FTHR Board PMIC
2
I C interface for register programming and control.
Operation from 1.8V to 3.3V
The MAX41461, MAX41462, MAX41463, and MAX41464
evaluation kits are also designed to operate with a simple,
one-pin data interface, alleviating the need to program the
part for nominal operation, or other high-level system (PC
with GUI software) having to configure the transmitter for
operation. These parts allow the user to preset the operating
frequencies by part selection and pin configurations. On
the evaluation kit, selecting the frequency of operation is
as simple as setting two jumpers.
● Proven 2-Layer PCB Design
● Fully Assembled and Tested
Ordering Information appears at end of data sheet.
®
The EV kit includes Windows 7/10-compatible software
that provides a simple graphical user interface (GUI)
for configuration of all the MAX4146x registers through
2
the SPI or I C ports. The GUI also controls the on-
board PMIC and can act as a data generator, when the
MAX32630FTHR Applications Platform is used.
Figure 1. MAX4146x EV Kit Board
Windows is a registered trademarks and registered service
marks of Microsoft Corporation.
319-100241; Rev 3; 12/18
Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
EV kit will be preprogrammed for interfacing the GUI
to the radio. The firmware programming process does
not require additional software or drivers, it uses a
simple USB drive, drag-and-drop file interface.
Quick Start
Required Equipment
● Included in the MAX4146x Evaluation Kit
• MAX4146x Evaluation kit board
• MAX32630FTHR# kit
- FTHR board
It is highly recommended that the target PC be connected
to a local area network and have access to the Internet,
this allows for automatic download and updates of some
drivers. This process may take 15 minutes or more to
complete.
- DAPLINK board
- 2x micro/B USB cables
• MAX4146x EV kit Pin Diagram Card
Installation Procedure
● Windows PC* (Win-7/Win-10), with one to two USB2.0
The steps in this section are used when connecting the
MAX4146x EV kit to a FTHR board and should only be
needed once, when configuring the hardware and the
PC for the first time. If these steps have already been
completed, jump directly to the FTHR Board Quick Start
Procedure.
ports available
● Power Supply† capable of 1.8V to 3.6V, 100mA
● Serial Data Source† and a simple means of connec-
tion (DATA test point and Ground)
● Basic Spectrum Analyzer – Rohde and Schwarz
ZVL3, Tektronix RSA306, or equivalent
Install the MAX4146x EV Kit GUI Software
● SMA/SMA cable as needed for connection to the
This process should take less than 10 minutes after
downloading the software package. Refer to Appendix I
for detailed information on this installation process.
spectrum analyzer
Software and Drivers
1) Copy the “Setup MAX4146X V1.0.0 EVKit SW.rar”
The MAX4146x EV kit can be used in conjunction with
the ARM Cortex-M4F microcontroller MAX32630FTHR
Application Platform or “FTHR” board to provide power
and control the device through a software application or
Graphical User Interface (GUI). For this option, additional
equipment is required:
file to a working folder on the target PC.
2) Extract the setup file contents into the working
directory.
3) Double-Click the “MAX4146xGUISetupV01.msi”
setup file and follow Setup Wizard prompts.
When connected to the FTHR board the MAX4146x EV
kit uses the following drivers and software components.
Refer to the Appendix I for additional information on this
installation process.
a. Click <Next> in the MAX4146X Setup Wizard
window.
b. It is recommended to use the default Destination
Folder; click <Next> to continue.
● MAX4146x Software Package
c. Install the software by clicking the <Install> button.
The software, firmware, and drivers are available
from the www.maximintegrated.com website. Login
to your MyMaxim account on the website, search for
the MAX4146x part or EVKIT, click on the “Design
Resources” tab, and click on the appropriate software
link. Finally, click the file link on the software landing
page to download the MAX4146x EV kit package.
d. Click <Finish> when the MAX4146X Setup Wizard
installation process is complete.
Table 1. MAX4146x EV Kit Installed Files
and Folders
FILE NAME
DESCRIPTION
● mBed MAX32630FTHR and DAPLINK Interface
MAX4146x.exe
Application GUI
System
Supporting DLL file for
software operation
The DAPLINK system should not be required unless
a firmware update to the FTHR board has been
released. The FTHR board included in the MAX4146X
MaximStyle.dll
RegisterSet8.xml
Register definition file
* Required for operation of the MAX4146x EV kit with the GUI software.
† Required when the FTHR board is not connected to the MAX4146x EV kit.
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Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
Update the MAX32630FTHR Board Driver
on the Host PC
FTHR Board Quick Start Procedure—
SPI and I C Interface
2
No changes are needed for the FTHR board when first
receiving a MAX4146x EV kit—the FTHR board has been
pre-loaded with the required firmware. Updates to the
driver on the host PC may be necessary depending on the
operating system and whether the PC has access to the
internet when first connecting to the FTHR board. Refer to
Appendix I for detailed information on how to update the
FTHR board firmware and the driver for the FTHR board/
USB interface.
Setup the MAX4146x EV kit and FTHR Board Hardware
MCU/GUI Operation.
1. Verify all jumpers on the MAX4146x EV kit board
are in the default position; refer to Table 2.
a. For the MAX41460 EV kit, JU2, JU3 and JU5
should not be installed.
b. For MAX41461-MAX41464 EV kits, JU2 and JU3
must be installed 2-3 (SEL0 and SEL1 connected
to GND); JU5 must be installed with jumpers from
pins 1-2 and 3-4.
Hardware Use Procedure
Table 2. MAX4146x EV kit Jumper
Settings
2. Connect the MAX4146x EV kit to the FTHR board,
be sure the USB connector is oriented on the opposite
side of the SMA connector, as shown in Figure 3.
JUMPERS POSITION
EV KIT FUNCTION
Power from L3OUT
(FTHR board)
1-2*
JU1
Power from PMOD interface
(VDD, pin 6 of JU4)
2-3
1-2
SEL1 to VDD
SEL1 – See
Table 3 for
2-3†
JU2
SEL1 to GND
Not
Installed‡
preset modes
SEL1 open
1-2
SEL0 to VDD
SEL0 – See
2-3†
SEL0 to GND
Figure 2. MAX4146x EV Kit Jumpers
Table 3 for
present
modes
JU3
Not
Installed‡
SEL0 open
I2C pullup resistor R14
connected to VDD
1-2†
I2C pullup resistor R15
connected to VDD
JU5
3-4†
Not
Installed*
Pullup resistors disconnected
* default position
setting for MAX41461-61 in I C mode
‡ default for MAX41460
†
2
Figure 3. MAX4146x EV Kit Orientation to FTHR Board
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Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
3. Connect the FTHR Board to the PC using a micro-B
USB cable and observe a “heartbeat” on the FTHR
board’s red LED.
i. To disable future displays of the splash screen,
click on the Disable check box.
ii. To continue to the GUI software, click on the
<OK> button.
4. Connect the RF_OUT to a spectrum analyzer
b. The expected COM port should be displayed if
the EVK was connected prior to starting the GUI.
Select the appropriate COM port from the drop-
down list and click on the <Connect> button. The
<Connect> button will change to the <Disconnect>
button.
c. Confirm the firmware status bar has changed from
“MAX4146X x.x.x” to “MAX4146X 0.1.0” or similar,
the software LED is lit green, and the port status is
noted as “Connected”.
using a low-loss SMA cable.
a. Set the Center Frequency to the target frequency
of interest.
b. Set the Span to 1% of the Center Frequency (FCC
standard test setting), the Resolution Bandwidth
(RBW) to 1kHz, and the Video Bandwidth (VBW)
to 3kHz.
c. Set the trace to “Max Hold”.
5. Start the MAX4146x EV Kit Control Software GUI
a. A MAX4146x EV kit splash screen, as shown in
Figure 4, will be displayed.
d. Enter a supply level into the “Voltage” text box and
click the <Set> button; for example, enter “3.0” for
a 3.0V supply and click <Set>.
Figure 4. MAX4146x EV Kit GUI Splash Screen.
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Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
Figure 5. MAX4146x EV Kit GUI Software.
Figure 6. COM Port.
Figure 7. Connected Indicators.
Figure 8. Supply Voltage.
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Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
e. Select the appropriate part in the “Chip” drop-
down box and click the <Set> button.
mended that the Frequency be set to match the
EV kit tuning (as noted on the hardware).
f. Select the Crystal Frequency (16.0MHz is default)
and click the <Set> button.
g. Select a desired form of modulation in the Modulation
drop-down box and click the <Set> button.
ii. Click the <Set> button.
j. If running in FSK mode select the “FSKSHAPE”
checkbox, set a Frequency Deviation (in ± kHz),
and click the <Set> button.
k. For 4-wire SPI operation (using the MAX41460,
this is needed to read-back register values):
i. click on the “0A CFG6” register.
h. Select a PA output power setting (“Power Level 1”
is the lowest setting, “Power Level 8” results in the
highest output power) and click the <Set> button
i. Enter the desired operating frequency.
ii. click on the “FOURWIRE1” 0-bit box.
i. Enter a value between 250 and 950 (units of
MHz) into the Frequency text box; it is recom-
Figure 9. Part Selection
Figure 12. PA Power Setting
Figure 13. Frequency Setting
Figure 10. Crystal Frequency Selection
Figure 11. Modulation Selection
Figure 14. FSK Deviation Setting
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Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
Figure 15. 4-Wire SPI Setting.
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Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
6. Generate a transmission
3. Connect the FTHR Board to the PC using a micro-B
USB cable and observe a “heartbeat” on the FTHR
board’s red LED.
a. In the Data Control block enter a Manchester
Bitrate of interest and click the <Set> button.
4. Connect the RF_OUT to a spectrum analyzer
b. Enter 0xAA in the “Messages” text box in the Data
Control block.
using a low-loss SMA cable.
a. Set the Center Frequency to the target frequency
of interest.
b. Set the Span to 1% of the Center Frequency, the
Resolution Bandwidth (RBW) to 1kHz, and the
Video Bandwidth (VBS) to 3kHz.
c. Check the “Continuous” checkbox.
d. Click on the <Send Data> button, the button will
change to <Stop>.
7. Observe the output on the spectrum analyzer
8. To manually change the transmitter to a different output
power setting.
c. Set the trace to “Max Hold”.
5. Run the MAX4146x EV Kit Control Software GUI
a. Click on the <Stop> button to end the data stream.
b. Click on the “06 PA1” register.
c. Click on the “PAPWR[2:0]” box and enter the
binary value ‘100’.
d. Click on the <Send Data> button to restart the
transmission.
a. Select the appropriate COM port and click on the
<Connect> button (see Figure 6).
b. Confirm the firmware status bar has changed from
“MAX4146X x.x.x” to “MAX4146X 0.1.0” or similar,
the software LED is lit green, and the port status is
noted as “Connected” (see Figure 7).
c. Enter a supply level into the “Voltage” text box in
units of V and click the <Set> button; for example,
enter “3.0” for a 3.0V supply (see Figure 8).
9. Observe the RF output on the spectrum analyzer.
FTHR Board Quick Start Procedure—
Preset Interface
d. Select the appropriate part in the “Chip” drop-down
box and click the <Set> button (see Figure 9).
Setup and Connect the MAX41461-MAX4164 EV Kit
Hardware to the FTHR Board for a “Data” Signal Source.
6. Generate a data stream.
1. Verify all jumpers on the MAX4146x EV kit board
are in the default position; refer to Table 2. It is
recommended the jumpers in Table 3 be set to the
output frequency for which the EV Kit is tuned (as
noted on the hardware).
a. In the Data Control block check the “Preset Mode”
checkbox.
b. Select the Manchester Bitrate of interest and click
the <Set> button.
c. Enter 0xAA in the “Messages” text box.
d. Check the “Continuous” checkbox.
e. Click on the <Send Data> button, the button will
change to <Stop>.
2. Connect the MAX4146x EV kit to the FTHR Board,
be sure the USB connector is oriented on the
opposite side of the SMA connector (see Figure 3).
7. Observe the output on the spectrum analyzer.
Figure 16. Data Control Block
Figure 17. Preset Data
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Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
3. Connect the RF_OUT to a spectrum analyzer using
Preset Quick Start Procedure—Without
FTHR Board
a low-loss SMA cable and configure the equipment.
a. Set the Center Frequency to the same value as
selected with the jumpers in step 1.
b. Set the Span to 1% of the Center Frequency, the
Resolution Bandwidth (RBW) to 1kHz, and the
Video Bandwidth (VBS) to 3kHz.
Setup and Connect the MAX4146x EV Kit
Hardware for Stand-Alone Operation
1. Verify all jumpers on the MAX4146x EV kit board
are in the default position; refer to Table 3. It is
recommended the jumpers from Table 3 be set to
the output frequency for which the EV kit is tuned (as
noted on the hardware).
c. Set the trace to “Max Hold”.
4. Connect a digital data signal to the DATAIN Test
Point (Yellow) and GND (Black)
2. Connect a 3.0V/100mA supply to the MAX4146x EV
kit at the VDD (Red) and GND (Black) points.
a. Be sure the data levels match the power supply
level used in step 2.
a. JU1 setting is not applicable (if the EV kit is still
connected to the FTHR board, JU1 must be “not
installed”).
b. Begin streaming data.
5. Observe the RF output on the spectrum analyzer.
b. Enable the power supply’s output.
Table 3a. MAX41461 EV Kit Preset States,
ASK Modulation
Table 3c. MAX41463 EV Kit Preset States,
FSK Modulation
SEL1
(JU2)
SEL0
(JU3)
MODE/CENTER FREQUENCY
(MHz)
SEL1
(JU2)
SEL0
(JU3)
MODE/CENTER FREQUENCY
(MHz)
2
2
GND
GND
GND
Open
Open
Open
VDD
VDD
VDD
GND
Open
VDD
GND
Open
VDD
GND
Open
VDD
I C Interface
GND
GND
GND
Open
Open
Open
VDD
VDD
VDD
GND
Open
VDD
GND
Open
VDD
GND
Open
VDD
I C Interface
315.0*
318.0
315.0
916.0
319.51
345.0
908.42
908.8
908.0
908.0
915.0
915.0*
433.92
433.42
433.92
433.42
Table 3b. MAX41462 EV Kit Preset States,
ASK Modulation
Table 3d. MAX41464 EV Kit Preset States,
FSK Modulation
SEL1
(JU2)
SEL0
(JU3)
MODE/CENTER FREQUENCY
(MHz)
SEL1
(JU2)
SEL0
(JU3)
MODE/CENTER FREQUENCY
(MHz)
2
2
GND
GND
GND
Open
Open
Open
VDD
VDD
VDD
GND
Open
VDD
GND
Open
VDD
GND
Open
VDD
I C Interface
GND
GND
GND
Open
Open
Open
VDD
VDD
VDD
GND
Open
VDD
GND
Open
VDD
GND
Open
VDD
I C Interface
315.0
433.92*
433.0
434.0
868.3
868.0
868.5
868.35
315.0
433.92*
868.42
868.95
868.30*
869.85
868.5
868.35
*default position; the MAX41464EVKIT# is tuned to 433.92MHz, the MAX41464EVKIT-868 is tuned to 868.3MHz.
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MAX4146x Evaluation Kit
Table 4. MAX4146x EV Kit Test Points
NAME
VDD
COLOR
Red
EVKIT FUNCTION
1.8V to 3.6V Power Supply pin
Ground
GND
Black
DATAIN/SDI
CLKOUT/SDO
Yellow
Green
TX data or SDI (MAX41460 only) interface
Clock output or SDO (MAX41460 only) interface
through the H1/H2 headers. Other MCU connections can
be made through the JU4 PMOD header (see the Pmod
Interface section).
Detailed Description
Detailed Description of Hardware
MAX4146x EV Kit Printed Circuit Board
Power
The MAX4146x evaluation kit PCB is manufactured
on a 2-layer, 1oz copper, FR4 dielectric stack-up PCB.
The board was designed to accommodate all five
versions of the ISM transmitter: MAX41460, MAX41461,
MAX41462, MAX41463, and MAX41464. Layer 1 is
primarily designed to keep the RF signals on one side of
the board with short traces, small matching components,
and low parasitics. Layer 2 was targeted to be a continuous
ground plane wherever possible.
The MAX4146x EV kit board can be powered directly from
the FTHR board PMIC through the H1 header, directly
from the supply test points, or through the user-installed
Pmod header. A single +1.8V to +3.6V, 100mA power
supply can be connected to the board using the two wire
loops (marked VDD and GND). Jumper JU1 selects the
source of power when not using the direct connection test
points: from the L3OUT of the FTHR board or the PVIO of
the Pmod connector.
Control Interface
Data Interface
There are three forms of interfacing to the MAX4146X
device depending on the part installed: 3 or 4-wire SPI,
“preset” or pin-configured, and the special case of an
The MAX4146x EV kit comes preconfigured to directly
connect the FTHR board through the H1/H2 headers to
the SPI and the I C interfaces. The GUI will determine
which bus is used to communicate to the device based on
the “Chip” selected in the software.
2
2
I C control interface. The MAX41460 device will require
a 3- or 4-wire SPI connection and the MAX4146x EV kit
was designed to use the provided FTHR board interface
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MAX4146x Evaluation Kit
MAX4146x ASK/FSK TRANSMITTER EV KIT
FTHR
3.3V
N/A
L3OUT
N/A
GND
GND
N/A
FTHR
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
SCLK
MOSI
SCLK
MOSI
SSEL
CSB
N/A
N/A
MISO
MISO
N/A
N/A
SCL
SDA
SCL
SDA
GND
GND
maxim
0.9" x 2.0" – PCB
0.9" x 2.375" – PCB + Connector
integratedTM
Figure 18. MAX4146X EV Kit Interface
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MAX4146x Evaluation Kit
resistors at R6 and R11. Both sets of pullup resistors (on
the FTHR board and the MAX4146x EV kit) should not be
populated simultaneously, otherwise incorrect I C signal
levels may result. Refer to Appendix II for detailed
information on evaluation kit hardware modifications.
Clock Output
When sending data to a MAX41461–MAX41464 in preset
mode the CLKOUT pin will drive an 800kHz clock signal.
This clock output signal can be monitored with the Green
CLKOUT test point. Note the output from the MAX41461-
MAX41464 is not designed to drive a high capacitive load
and may cause noticeable ±800kHz spurs in the spectrum
when the CLKOUT test point is connected to a capacitive
load of more than 10pF. A typical, low-end oscilloscope
probe may be enough to cause these spurs.
2
Data Indicator
An option available on the evaluation kit layout is the
ability to connect a surface-mount LED (D1, 0603) and
resistor (R9, 0603, 470Ω recommended) to provide visual
feedback of the activity on the DATAIN line. Populating
this LED and resistor will cause additional power
consumption and is not included by default in the evaluation
kit assembly.
2
I C Pullups
Resistors R14 and R15 along with jumper JU5 have been
provided as on-board pull-ups required for proper I C
2
interfacing and termination. When using a MAX41461–
MAX41464 device in preset mode, the DATAIN line
should be held low at power-up for proper configuration,
therefore, the R16, 100kΩ is the default connection. When
Pmod Interface
The MAX4146x EV kit provides a Pmod-compatible
header footprint to interface with the transmitter. The JU4
connector can be populated with a 6-pin, 100mil, right-
angle header allowing direct connections to the CSB,
DATAIN, CLKOUT, SCLK/SDA, ground, and VDD lines,
2
used in I C mode, the DATAIN pin is used instead as the
2
I C, SDA line. Likewise, the CLKOUT pin is used as the
2
I C SCL input. These pins are open-collector (or open-
2
making it capable with either SPI or I C Pmod interfac-
drain) outputs from a the MCU and need to have pullup
resistors to operate properly. Two 4.7kΩ resistors are pre-
populated on the MAX4146x EV kit and can be connected
to the positive supply by shorting the JU5 jumper 1-2 and
3-4. This should only be connected when the preset pins
(SEL0 and SEL1) are both connected to ground, selecting
ing. Populating this header would allow control from the
MAX32600MBED kit and the MAXREFDES72# Arduino
Uno R3 to Pmod shield adaptor. When using the Pmod
interface to supply the MAX4146x EV kit with power,
make sure to connect the JU1 jumper between pins 2-3.
Refer to Appendix II – Hardware Modifications for detailed
information on evaluation kit hardware modifications.
2
the I C interface mode of the MAX4146x. It should be
2
noted that the FTHR board also has footprints for I C pullup
Figure 19. 800kHz Spurs from Excessive CLKOUT Loading
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MAX4146x Evaluation Kit
to the level of the logic interface lines as well as the
device supply. (Figure 8)
Detailed Description of Software
The MAX4146x EV kit Controller GUI Software is
designed to control the MAX4146x evaluation kit board
and the MAX32630FTHR board as shown in Figure 3. The
To program the supply voltage, enter a valid level in the
“Voltage” text box and click on the <Set> button. The
default value of the L3OUT voltage is 3.3V.
2
software includes USB controls which provide SPI, I C, or
data-only communication to the MAX4146X through the
FTHR board interface.
When using the FTHR board interface to supply the
MAX4146x EV kit with power, make sure to connect the
JU1 jumper between pins 1-2.
Comport
The COM Port section provides a drop-down selection
of serial communication ports available for connection
to a MAX4146X evaluation kit through a FTHR board.
When the GUI is run after connecting the evaluation
kit hardware, the drop-down box should default to the
proper COM Port. If the hardware is connected to the
computer after the GUI is started, click on the <Refresh>
button to scan for compatible ports. Once the appropriate
COM Port is selected in the drop-down box, click on the
<Connect> button. (See Figure 6)
Chip
The Chip section must be set by the user to properly
select which type of MAX4146x EV kit is attached to the
FTHR board. This selection will configure the GUI soft-
ware to interface through the SPI pins (when MAX41460
is selected), through the I C pins, or provide a simple data
stream to the device (when the MAX41461, MAX41462,
MAX41463, or MAX41464 are selected).
2
To select the part, chose the appropriate part in the “Chip”
drop-down box and click on the <Set> button. (Figure 9)
After properly connecting to the COM Port with the FTHR
board, the GUI will display the revision of FTHR board
firmware detected, display a Green “LED”, and display
“Connected” in the status bar along the bottom of the GUI
window. (Figure 7)
Crystal Frequency (12.8MHz–19.2MHz)
The Crystal Frequency section allows the user to indicate
the frequency of the crystal installed on the MAX4146x
EV kit (f
). All evaluation kits come prepopulated with
XTAL
a 16.000MHz crystal and the default setting in the GUI
is assumed to be 16.0MHz. This value can be adjusted
between 12.8MHz and 19.2MHz and will be used when
programming frequency-basted registers that are dependent
Voltage (1.8–3.3V)
The Voltage section provides a user-adjustable power
supply from the FTHR board MAX14690N Power
Management IC (PMIC) to the MAX4146x EV kit and can
be used as the primary VDD supply. The PMIC, L3OUT
can be set to voltages between 1.8V to 3.3V and it applies
on the f
value.
XTAL
To configure the reference oscillator, enter a valid
frequency (in MHz) in the “Crystal Frequency” text box
and click on the <Set> button. (Figure 10)
Figure 20. MAX4146x EV Kit GUI Configuration
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MAX4146x Evaluation Kit
Modulation
Frequency Deviation
The Modulation section allows the user to quickly set
the form of modulation for the MAX4146x device. When
a MAX41461 or MAX41462 device is selected, only
ASK modulation will be available in the drop-down box.
Similarly, when MAX41463 and MAX41464 is selected,
only FSK will be available in the drop-down box. This
section directly programs the MODMODE bit [0] in the
CFG1 register (0x00).
The Frequency Deviation section is used to set the FSK
deviation values (Δf) and the Gaussian shaping bit. The
value entered in this section is used to calculate the 7-bit
content for the PLL6 (0x0E) register. This calculation will
also use the value entered for the Crystal Frequency
section. The formula for setting the register value is:
Equation 2:
8192
To select the modulation, chose ASK or FSK in the
“Modulation” drop-down box and click on the <Set>
button. (Figure 11)
DELTAAF [6 : 0] = Floor ∆f ×
f
XTAL
To program the Δf, enter a valid frequency (in kHz) into
the “Frequency Deviation” text box and click on the <Set>
button. (Figure 14)
PA Power Setting
The PA Power Setting section allows the user to quickly
set the power level of the PA. This section directly
programs the PAPWR bits [2:0] in the PA1 register (0x06).
The maximum output power is obtained by selecting
“Power Level 8” or 111b in the register. The default
minimum output power for the MAX4146x when interfacing
The GUI software will adjust the carrier frequency based
on ½ of this Δf value to maintain the center of the FSK
signal. This will place f
at f – Δf/2 and f
at f
MARK C
SPACE
C
+Δf/2. If the center frequency is adjusted and programmed
after setting the Frequency Deviation, then f = f
SPACE
C
2
through I C and SPI is “Power Level 1” or 000b in the
and f
= f + Δf. To reset the center of the FSK
MARK
C
register. Each bit can adjust the PA output by approxi-
mately 2.5dB.
signal to f , simply click on the Frequency Deviation
C
<Set> button again.
To select the output power level, choose the appropriate
“Power Level” in the “PA Power Setting” drop-down box
and click on the <Set> button. (Figure 12)
Data Control Section
This portion of the GUI software provides a flexible tool for
the user to generate data for SPI, I C, or the preset parts,
all from a single interface.
2
The power level can also be set manually through the
Direct Register Access Section by clicking on the 06 PA1
(0x06) register, clicking on the PAPWR[2:0] field, and
typing in a binary value between 000b and 111b.
Frequency
The Frequency section is used to set the carrier or
“center” frequency of the MAX4146x (f or f ). The
C
LO
value entered in this section will be used to calculate the
3-word Fractional-N value programmed into the PLL3
(0x0B), PLL4 (0x0C), and PLL5 (0x0D) registers. The GUI
will calculate the values for the PLL registers using the
Crystal Frequency and the following formula:
Equation 1:
65536× f
Figure 21. Preset Data
C
FREQ [23 : 0] = Round
f
XTAL
To program the carrier, enter a valid frequency (in MHz)
into the “Frequency” text box and click on the <Set>
button. (Figure 13)
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MAX4146x Evaluation Kit
Equation 5a:
BCLKPREDIV =
Preset Mode
When using a MAX41461-64 evaluation kit in preset
mode, the GUI can provide simple Manchester encoded
data directly to the DATAIN pin of a connected device.
Simply select the <Preset Mode> checkbox to generate
this data without any other interfacing. All the following
setting are then used to format a data stream to send
directly to the DATAIN pin on the attached MAX4146x
EV kit.
800kHz
−1,
BAUDRATE
when BCLK_POSTDIV = 1
Equation 5b:
BCLKPREDIV =
400kHz
−1,
BAUDRATE
when BCLK_POSTDIV = 2
Manchester Bitrate
etc...
This is the data rate in kbps for Manchester encoded data.
Enter a value in the text box and click the <Set> button to
configure the Data Control.
When using devices in I2C mode, this baud rate must
not exceed the rate at which data is being written to the
TX Data FIFO. Otherwise, the buffer will be emptied (under-
flow) with the first packet transfer and the MAX41461-
MAX41464 will exit transmission mode. Generally, that
baud rate is 8/9 of the SCL rate, which for the FTHR board
When communicating with a MAX41461–MAX41464 in
2
I C mode, this bitrate value will be used to program the
Baud Clock values BCLK_POSTDIV[2:0] in the CFG2
(0x01) register and the BCLK_REDIV[7:0] in the CFG3
(0x02) register. According to the formula:
interface f
= 400kHz. Therefore, the maximum baud
SCL
rate of 200kbaud is obtainable using the evaluation kit
setup in I C mode.
Equation 3:
2
f
CLK
BAUDRATE =
Continuous Transmission
(1+BCLKPOSTDIV )
(1+ BCLKPREDIV )× 2
Selecting this check box will configure the Data Control
interface so the message or data sequence will repeat
until the user interrupts the transmission. For example:
when a “0xAA” message is sent with <Continuous>
unchecked, the sequence of 1-0-1-0-1-0-1-0 bits will be
transmitted a single time. When the <Continuous> is
checked, the <Send Data> process will continuously send
a repeating sequence of 1-0-1-0-1-0-1-0-1-0-1-0-1-0-1-
0… bits, emulating a square wave data pattern.
Equation 4:
f
XTAL
Where: f
=
CLK
XODIV Ratio
16MHz
with default settings of : f
=
= 3.2MHz,
CLK
5
BCLKPOSTDIV = 1 to 5, and BCLKPREDIV = 3 to 255
Using the following equation and the default crystal
frequency, the BCLK_PREDIV can be calculated from the
target baud rate using ranges set by BCLK_POSTDIV:
Equation 5:
3.2MHz
BCLKPREDIV =
−1
(1+BCLKPOSTDIV)
BAUDRATE× 2
Table 5. Baud Rate Programming
MIN BAUD
(BCLK_PREDIV = 255)
MAX BAUD
(BCLK_PREDIV = 3)
BCLK_PREDIV
RESOLUTION
BCLK_POSTDIV
1
2
3
4
5
3125Hz
200kHz
100kHz
50kHz
~12Hz to 40kHz
~6Hz to 20kHz
~3Hz to 10kHz
~1.5Hz to 5kHz
~0.8Hz to 2.5kHz
1562.5Hz
~781.3Hz
~390.6Hz
25kHz
~195.3Hz
12.5kHz
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MAX4146x Evaluation Kit
Messages Text Block and Message File
Direct Register Access Section
The <Messages> text block contains a hexadecimal
encoded data string to be transmitted with the FTHR
board over the data interface. This message is formatted
differently depending on the “Chip” selected and the mode
of operation. For example, when in preset mode the data
is streamed directly to the DATAIN pin of the MAX4146x
The GUI software allows for direct access to all the available
register when interfacing with both the MAX41460 SPI-
based device or the MAX41461-64 devices in I C mode.
2
Register List
On the left-hand side of the Register Interface section
is a list of the device’s internal registers. Each register
address/name (e.g., “00 CFG1”) acts as an active control
and by clicking on an individual register, the contents will
be presented in the Register Value section.
2
evaluation kit. When in I C mode, the message is
2
packetized and formatted across the I C registers for
transmission at the baud rate set with the “Manchester
Bitrate” control noted previously. Finally, when used with a
MAX41460 SPI device, the CSB and DATA pins are used
to transmit the message at the bitrate noted previously.
Register Value
The right-hand side of the Register Interface section
displays the content of the selected device register. At
the top of the block, a header displays the name of the
selected register (e.g., “CFG1”), the “Index” or address
of the register in both decimal (“0d”) and hexadecimal
(“0000h”) form.
Tools are provided to allow the user to quickly load
complex test packets generated outside of the GUI. The
<Clear>, <Save>, and <Load> buttons help control the
contents of the <Messages> text block.
By clicking on the <Clear> button, any contents in the
<Messages> text block will be deleted.
The body of this section shows a table with the names of
the individual bits for the selected 8b register along with
the current value programmed into each bit or bit group.
Clicking the <Save> button will store the contents of the
<Messages> block to a file. A “Save As” explorer window
will open, and the user will be prompted to save a .txt file.
The remaining portion of the body shows a table with the
bit indexes, the type of register (write/read), the name of
the bit or bit group, the Reset value, and a description of
the bit or bit group.
Clicking the <Load> button will pop-up an “Open”
window and prompt the user for a .txt file to load into the
<Messages> text block.
Read and Write Registers
Tool History Section
Most of the registers in the MAX4146x are both readable
and writable. The read-only registers are I2C4 (0x14),
I2C5 (0x15), I2C6 (0x16), ID1 (0x1B), ID2 (0x1C), and
STATUS (0x1D). Writing values to a register can be
accomplished by selecting the register of interest, typing
a Hex or Dec value into the “Value” text box, and clicking
on the <Write Register X> button (where X is the decimal
address of the register). Reading the register content
is similar: select the register of interest and click on the
<Read Register X> button.
This portion of the GUI contains a Log File text block
which is used to record activity within the GUI.
Log File
For every <Set>, connection effort, or register programming
action, the GUI activity is logged in this text block. The
user can add notes and make edits to the content of the
Log File text block.
Clicking on the <Clear Log File> will delete the contents
in the text block.
Register Bit Field
Clicking the <Save Log File> button will open a “Save As”
explorer window and the user will be prompted to save a
.txt file.
Individual bits or bit groups can be programmed without
having to enter the full value of the register. To program a
bit or group of bits, first select the register of interest (PA1,
0x06 for example), next select the bit or bit group to be
changed (PAPWR[2:0] as an example), enter the binary
code for the new value (111b), and hit <Enter>--the new
value will automatically be reflected in the “Value” text box
and will be written to the device.
Figure 22. Tool History
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MAX4146x Evaluation Kit
sequence can be directly encoded by the MCU onto
DATAIN—what goes in is what comes out.
Miscellaneous Software Information
The tool bar along the top of the GUI software provides a
couple of options to the user.
2
I C Mode
2
The I C interface mode allows the user to access the
File and Help Menu
internal registers of the MAX41461-64 devices, permitting
full control over the transmission frequency, modulation
setting, programmable output power, sophisticated low-
power and low-noise operational settings, etc.
Selecting File > Exit from the tool bar will close the GUI
program. This has the same effect as clicking the <X>
button in the upper-right corner of the GUI software.
Selecting Help > About from the tool bar will display the
splash screen. This window shows the name of the soft-
ware, the revision number, a copyright notice, a link to
the Maxim website, a link to the support website, and a
checkbox to enable or disable the splash screen during
startup. Click the <OK> button to close the About window.
This mode only requires two digital pins to interface with
the transmitter but has a more complicated, packet-based
2
method of transmission. Once configured for I C interfac-
ing, the DATAIN connection is used as the SDA line of the
2
I C bus. Data transmission is handled by sending data
2
packets to the internal FIFO over the I C interface. The
.xml File
FIFO data are then transmitted at the pre-programmed
baud rate and the transmission is halted when either of
two conditions are met: 1) the PKTLEN value has been
reached, or 2) a FIFO underflow (or overflow) occurs.
The register-programmed baud rate defines the fre-
quency at which NRZ data are transmitted. If other data
encoding formats are required (pulse width, Manchester,
etc), either the I2C data packet can be formatted to emu-
late the encoding or the other modes of operation (Preset
or SPI Mode) should be used.
The register descriptions for the MAX4146X GUI is
available in an .xml file which is stored with the executable
in the application directory. The default file loaded when
the GUI is initialized is RegisterSet8.XML. This file
can be edited as needed to adjust the names of fields,
provide simple indicators to the GUI user, or allow for
flexible updates to the GUI interface in the future.
Use Cases
Three Interface Modes for Data Transmission
and Control
All the MAX41461-MAX41464 devices are identified
with an I2C address of 0xD2 for write and 0xD3 for read
sequences. Packet transmission is described in the
various device data sheets within the “Two-Wire I2C
Serial Interface” section.
The MAX4146x family of parts allow a great deal of flex-
ibility when it comes to transmitting data. Typically, the
fewer pins used to interface with the device, the simpler it
is to control and transmit data.
SPI Mode
Preset Mode
The SPI interface is only available on the MAX41460
Preset mode is the simplest interface of the three options.
It relies on the part number to choose the modulation
(MAX41461 and MAX41462 for ASK; MAX41463 and
MAX41464 for FSK) and jumper settings (or tri-level pin
connections) to configure the part for a defined carrier
frequency (See Table 3).
2
device. Similar to the I C mode devices, the SPI interface
allows access to the internal registers of the transmitter.
This permits the user to have full control over the same
properties of transmission frequency, modulation setting,
programmable output power, sophisticated low-power
and low-noise operational settings, etc.
The preset mode data interface requires only one pin to
transmit data, wake-up, and shut-down the transmitter.
To accomplish this the MAX4146x uses an auto-data-
detection process on the DATAIN connection to determine
when to power-up and transmit and when to shut down.
This mode allows for either a 3-wire interface (write-only)
or a 4-wire read/write interface. Data transmission is
handled with a three-step process: 1) transition the CSB
line low; 2) perform any register configurations then
switch to transmit mode by setting the SPI_TXEN1 bit
in the CFG6 (0x0A) register or the SPI_TXEN2 bit in
the CFG7 (0x0B) register; 3) hold the CSB line low and
sequence the DATAIN line just like in preset mode opera-
tion. Taking the CSB line high will end transmission and
cause the MAX41460 to enter shut down or standby mode
(determined by register settings).
The baud rate and encoding of the transmission data
is defined by the user simply by creating a virtual
connection between DATAIN and the PA (DATAIN H/L
= on/off for ASK modulation or mark/space for FSK
modulation). Input to DATAIN is interpreted as an NRZ
data sequence and if a particular encoding format
is required (pulse width, Manchester, etc) the input
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MAX4146x Evaluation Kit
The baud rate and encoding of the transmission data
is defined by the user simply by creating a virtual
connection between DATAIN and the PA (DATAIN H/L
= on/off for ASK modulation or mark/space for FSK
modulation). Input to DATAIN is interpreted as an NRZ
data sequence and, if a particular encoding format
is required (pulse width, Manchester, etc.), the input
sequence can be directly encoded by the MCU onto
DATAIN—what goes in is what comes out.
the programmed transmission frequency to 50%. To make
this change, select the SHDN (0x05) register and set the
PA_BOOST bit to 1b.
Higher output power can also be accomplished with
adjustments to the output matching network. See Appendix
II – Hardware Modifications for more details.
For additional information on switch-mode PAs similar to the
one used in this transmitter, see Application Note 3589
—Power Amplifier Theory for High-Efficiency Low-Cost
ISM-Band Transmitters. Refer to Appendix II – Hardware
Modifications for detailed information on hardware
modifications.
A full description of the SPI interface can be found in
the “Serial Peripheral Interface (SPI)” section of the
MAX41460 device data sheets.
Clock Output
Shutdown, Standby, and Program Modes
The CLKOUT pin on the MAX4146x devices is available
for synchronous interfacing to an MCU in the transmitter
application.
When communicating with a MAX41460 device or the
MAX41461-64 device in I C mode, the part can be
programed to power-down into one of three low-current,
non-transmitting states after completing a transmission:
shutdown, standby, and program mode.
2
When MAX41461-MAX41464 devices are used in preset
mode, the CLKOUT pin provides an 800kHz square wave
output signal when the device is active. If these parts are
Shutdown is the lowest-current power-down state and is
the default condition for all devices, including parts used
in preset mode. Standby allows the transmitter to startup
quicker than shutdown by keeping the crystal oscillator
circuit running. Finally, programming mode keeps both
the crystal oscillator and the PLL running allowing for the
quickest transition from programming to full transmission.
2
used in I C mode, the CLKOUT pin is repurposed as the
SCL pin and there will no longer be an output clock signal.
When a MAX41460 device is configured for a 3-wire
SPI interface, the CLKOUT pin will provide an 800kHz
square wave output signal when the device is active. If
the MAX41460 is configured for a 4-wire SPI interface,
the CLKOUT pin is repurposed as the SDO or MISO pin.
There will not be an output clock signal but rather the
read-sequence serial data output.
To set the power-down mode, click on the CFG4 (0x03)
register, select the PWDN_MODE[1:0] and enter a value
of 01b for standby mode. The program mode value is 10b
and the default value for shutdown mode is 00b.
As noted in the Detailed Description of Hardware section,
the CLKOUT pin is not designed to drive a high capacitive
load and may cause noticeable ±800kHz spurs in the
transmission spectrum when it is connected to a capacitive
load of more than 10pF.
Variable Capacitance
As noted in the data sheet, the PA output has an inherent
capacitance (approximately 4.7pF). The MAX4146x family
of transmitters have a 5-bit programmable capacitance
value which can help the user ‘tune’ the output network by
varying the PA capacitance. Each step of the programable
capacitance has a nominal resolution of 0.18pF ranging
from a total of 4.7pF to about 10.pF.
High Power “Boost” Mode
Boost mode in the MAX4146x is accessible whenever the
user is interfacing with the transmitter’s registers through
2
I C or SPI. Use of the boost mode is not recommended
on unmodified evaluation kit when operating at frequen-
cies below 850MHz because the larger voltage swings
imposed on the PA output may exceed the Absolute
Maximum ratings of the device.
To program this value click on the PA2 (0x07) register,
select the PACAP[4:0] bit group, and enter a value for the
adjustable capacitance such as 1000b. The default value
is no added capacitance: 00000b.
Setting the boost mode in the MAX4146x changes the
“on” duty cycle of the PA output stage FETs from 25% of
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MAX4146x Evaluation Kit
When switching back to the ring-oscillator VCO, be sure
to set the LOMODE bit back to 0b and the LODIV[1:0] bit
group back to 00b.
PLL Control
The MAX4146x transmitter has to modes of operation
for the PLL: low-current and low phase noise mode.
Low current mode uses an internal ring oscillator VCO
which has advantages in power consumption and
tunability, allowing for continuous tuning from 286MHz
to over 960MHz. The low phase noise mode switches
the PLL over to an LC VCO providing a more controlled,
higher-Q reference with the limitation of fixed operat-
ing bands of 286MHz~320MHz, 425MHz~480MHz, and
860MHz~960MHz (defined by the N-divider).
Chip ID
Register ID1 (0x1B) provides a readable identification
number for the device. When communicating with a
MAX41460 device, the ID value with be reported as 0x6F.
When communicating with a MAX41461–MAX41464
2
device in I C mode, the ID value will be reported as 0x60.
The ID2 register (0x1C) provides a readable revision
number for the device. The default value for this register
is 0x0A. This register can easily be used as a confirmation
To switch from the default ring-oscillator VCO to the
LC VCO, click on the PLL1 (0x08) register, select the
LOMODE bit, and enter the value of 1b. Next, select the
LODIV[1:0] bit group and program the divider ratio based
on the targeted operating frequency.
2
of proper I C and 4-wire SPI communication simply by
reading-back the value of the ID2 register to confirm the
result as “0x0A”.
Table 6. VCO Divider Settings
VCO
Ring Oscillator*
LC VCO
LO MODE SETTING
FREQUENCY RANGE (MHz)
286~960MHz
286~320
LODIV[1:0] SETTING
0b
1b
1b
1b
00b
11b
10b
01b
LC VCO
425~480
LC VCO
860~960
*Default
Ordering Information
PART
TYPE
MAX41460EVKIT#
SPI Interface at 434MHz
2
MAX41461EVKIT-315
MAX41462EVKIT-434
MAX41463EVKIT-915
MAX41464EVKIT-868
MAX41464EVKIT#
Preset/I C Interface at 315MHz
2
Preset/I C Interface at 434MHz
2
Preset/I C Interface at 915MHz
2
Preset/I C
2
Preset/I C at 434MHz
MAX32630FTHR#
ARM mBed FTHR Platform
#Denotes a RoHS-compliant device that may include lead(Pb)
that is exempt under the RoHS requirements.
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MAX4146x Evaluation Kit
MAX4146x EV Kit Component List
PART
QTY
DESCRIPTION
PART
QTY
DESCRIPTION
JU4
1
DNP
5pF ± 0.25pF Capacitor (01005)
muRata GRM0225C1H5R0CA03
C1, C2
2
5.6nH ± 5% Inductor (0603)
muRata LQW18AS5N6J0Z
L1A
L1B
1
1
1
5
3
0.47µF ± 10% Capacitor (0603)
muRata GRM188R71C474K
C3
C4
C5
C6
C7
C8
1
1
1
1
1
1
DNP
0.01µF ± 5% Capacitor (0603)
muRata GRM1885C1H103JA01
18nH ± 5% Inductor (0603)
muRata LQW18AN18NJ80
L2
220pF ± 5% Capacitor (0603)
muRata GRM1885C1H221JA01
R1-R5
R6-R8
DNP (MAX41464)
0Ω ± 0% Resistor (0603)
Vishay Dale CRCW06030000Z0
3.3pF ±0.25% Capacitor (0402)
muRata GRM1555C1H3R3BA01D
R9-R13,
R17-R18
7
2
1
1
4
DNP
100pF ± 5% Capacitor (0402)
muRata GRM1555C1H101JA01
4.7kΩ ± 5% Resistor (0603)
Panasonic ERJ-3GEYJ472V
R14, R15
R16
4.7pF ± 0.1% Capacitor (0402)
muRata GJM1555C1H4R7BB01
100kΩ ± 1% Resistor (0603)
Panasonic ERJ-3EKF1003
C9, C10
CLKOUT
D1
1
1
1
1
2
DNP
Test Point Keystone 5126
DNP
SMA Connector
Johnson Components 142-0701-851
RFOUT
DATAIN
GND,
GND1
Test Point Keystone 5014
Test Point Keystone 5011
SU1-SU3,
SU5
Test Point Jumpers
Sullins STC02SYAN
U1
1
1
MAX41464GUB+ TSSOP10
Connector Male Through Hole
Sullins PRPC016SFAN-RC
H1
1
1
3
VDD
Test Point Keystone 5013
16 MHz Crystal
Epson TSX-3225
16.0000MF18X-AC0
Connector Male Through Hole
Sullins PRPC012SFAN-RC
H2
Y1
1
JU1-JU3,
JU5
Connectors Male Through Hole
Sullins PEC03SAAN / PEC02SAAN
Component Suppliers
SUPPLIER
WEBSITE
Epson America
www5.epsondevice.com
belfuse.com/cinch
www.keyelco.com
www.murata.com
Johnson Components/Cinch
Keystone
Murata Electronics North America, Inc.
Panasonic
Sullins
www.sullinscorp.com
www.vishay.com
Vishay Dale
Note: Indicate that you are using the MAX4146x when contacting these component suppliers.
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Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
MAX4146x EV Kit Bill of Materials
ITEM
REF_DES
DNI/DNP
QTY
MFG PART #
MANUFACTURER
VALUE
DESCRIPTION
1
C1, C2
—
2
GRM0225C1H5R0CA03
MURATA
5PF
CAP; SMT (01005); 5PF; ±0.25PF; 50V; C0G; CERAMIC CHIP;
CAPACITOR; SMT; 0603; CERAMIC; 0.47uF; 16V; 10%; X7R;
-55°C to + 125°C; 0 ±15%°C MAX.
2
3
C3
C4
—
—
1
1
C0603C474K4RAC; GRM188R71C474K
KEMET;MURATA
0.47UF
0.01UF
C1608C0G1H103J; CGA3E2C0G1H103J080AD;
GRM1885C1H103JA01
CAPACITOR; SMT (0603); CERAMIC CHIP; 0.01UF;
50V; TOL = 5%; TG = -55°C to +125°C; TC = C0G
TDK;TDK;MURATA
CAPACITOR; SMT (0603); CERAMIC CHIP; 220PF; 50V;
TOL = 5%; TG = -55°C TO +125°C; TC = C0G
4
5
C5
C6
—
—
1
1
GRM1885C1H221JA01
GRM1555C1H3R3BA01
MURATA
MURATA
220PF
3.3PF
CAP; SMT (0402); 3.3PF; ±0.1PF; 50V; C0G; CERAMIC CHIP
C0402C101J5GAC;NMC0402NPO101J;
CC0402JRNPO9BN101;GRM1555C1H101JA01;
C1005C0G1H101J050;CGA2B2C0G1H101J050BA
KEMET;NIC COMPONENTS CORP.;
YAGEO PHICOMP;MURATA;TDK;TDK
CAPACITOR; SMT (0402); CERAMIC CHIP; 100PF; 50V;
TOL = 5%; TG = -55°C TO +125°C; TC = C0G
6
C7
—
1
100PF
CAPACITOR; SMT (0402); CERAMIC CHIP; 4.7PF; 50V;
TOL = 0.1PF; TG = -55°C TO +125°C; TC = C0G
7
8
C8
—
—
—
—
1
1
1
2
GJM1555C1H4R7BB01
MURATA
KEYSTONE
KEYSTONE
KEYSTONE
4.7PF
N/A
TEST POINT; PIN DIA = 0.125IN; TOTAL LENGTH = 0.445IN; BOARD HOLE = 0.063IN;
GREEN; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
CLKOUT
DATAIN
5126
5014
5011
TEST POINT; PIN DIA = 0.125IN; TOTAL LENGTH = 0.445IN; BOARD HOLE = 0.063IN;
YELLOW; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
9
N/A
TEST POINT; PIN DIA = 0.125IN; TOTAL LENGTH = 0.445IN; BOARD HOLE = 0.063IN;
BLACK; PHOSPHOR BRONZE WIRE SILVER PLATE FINISH;
10
GND, GND1
N/A
11
12
13
14
15
16
17
18
19
H1
H2
—
—
—
—
—
—
—
—
—
1
1
3
1
1
1
3
2
1
PRPC016SFAN-RC
PRPC012SFAN-RC
PEC03SAAN
SULLINS ELECTRONICS CORP
SULLINS ELECTRONICS CORP
SULLINS
PRPC016SFAN-RC
CONNECTOR; MALE; THROUGH HOLE; PRPC SERIES; STRAIGHT; 16PINS
CONNECTOR; MALE; THROUGH HOLE; PRPC SERIES; STRAIGHT; 12PINS
CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 3PINS
CONNECTOR; MALE; THROUGH HOLE; BREAKAWAY; STRAIGHT; 4PINS
INDUCTOR; SMT (0603); WIREWOUND; 5.6NH; 5%; 0.7A
PRPC012SFAN-RC
JU1-JU3
JU5
PEC03SAAN
PEC02DAAN
5.6NH
PEC02DAAN
SULLINS ELECTRONIC CORP.
MURATA
L1A
LQW18AS5N6J0Z
LQW18AN18NJ80
CRCW06030000Z0
ERJ-3GEYJ472V
ERJ-3EKF1003
L2
MURATA
18NH
INDUCTOR; SMT (0603); WIREWOUND; 18NH; 5%; 1.4A
R6-R8
R14, R15
R16
VISHAY DALE
0
RESISTOR; 0603; 0Ω; 0%; JUMPER; 0.1W; THICK FILM
PANASONIC
4.7K
RESISTOR; 0603; 4.7KΩ; 5%; 200PPM; 0.10W; THICK FILM
PANASONIC
100K
RESISTOR; 0603; 100KΩ; 1%; 100PPM; 0.1W; THICK FILM
CONNECTOR; END LAUNCH JACK RECEPTACLE; BOARDMOUNT;
STRAIGHT THROUGH; 2PINS;
20
21
RFOUT
—
—
1
5
142-0701-851
JOHNSON COMPONENTS
142-0701-851
CONNECTOR; FEMALE; MINI SHUNT; 0.100IN CC; OPEN TOP;
JUMPER; STRAIGHT; 2PINS
SU1-SU5
NPC02SXON-RC
SULLINS ELECTRONICS CORP.
NPC02SXON-RC
EVKIT PART - IC; MAX41464GUB+; TSSOP10; 300-960MHZ (G)FSK TRANSMITTER WITH
I2C INTERFACE; PACKAGE OUTLINE DRAWING: 21-0061;
PACKAGE CODE: U10+2; PACKAGE LAND PATTERN: 90-0330
22
23
U1
—
—
1
1
MAX41464GUB+
5010
MAXIM
MAX41464GUB+
TEST POINT; PIN DIA = 0.125IN; TOTAL LENGTH = 0.445IN;
BOARD HOLE = 0.063IN; RED; PHOSPHOR BRONZE WIRE SIL;
VDD
KEYSTONE
N/A
24
25
Y1
U2
—
—
1
1
TSX-3225 16.0000MF18X-AC0
MAXREFDES100HDK#
EPSON
MAXIM
16MHZ
CRYSTAL; SMT (3225) 3.2X2.5; 9PF; 16MHZ; +/-10PPM; +/-18PPM
ASSEMBLY; MOD; HEALTH SENSOR PLATFORM; MAXREFDES100HDK#
CONNECTOR; FEMALE-FEMALE; WIREMOUNT;
1.27MM IDC CABLE-150MM; WIREMOUNT; 10PINS
26
27
U2
U2
—
—
1
1
1675
ADAFRUIT INDUSTRIES
CONNECTOR; MALE-MALE; WIREMOUNT;
USB 4P-MICRO USB 5P 915MM; WIREMOUNT; 5PINS
3025010-03
QUALTEK ELECTRONICS CORP
28
29
PCB
U2
—
1
1
MAX41464868MHZ
MAX32630FTHR
MAXIM
MAXIM
PCB
PCB:MAX41464868MHZ
DNI
MAX32630FTHR
EVKIT PART-MODULE; MAX32630FTHR; RAPID DEVELOPMENT PLATFORM;
CONNECTOR; FEMALE; THROUGH HOLE; LFB SERIES;
2.54MM CONTACT CENTER; STRAIGHT; 16PINS
30
J1
DNI
1
PPPC161LFBN-RC
SULLINS ELECTRONICS CORP.
PPPC161LFBN-RC
31
32
J3
DNI
DNI
1
1
PPPC121LFBN-RC
3025010-03
SULLINS ELECTRONICS CORP
QUALTEK ELECTRONICS CORP
PPPC121LFBN-RC
3025010-03
CONNECTOR; FEMALE; THROUGH HOLE; HEADER FEMALE; STRAIGHT; 12PINS
CONNECTOR; MALE; USB-A_MINI-B; USB 4P(A)/M - USB MINI 5P(B)/M; STRAIGHT; 36IN
MISC1
CAPACITOR; SMT; 0603; CERAMIC; 0.47uF; 16V; 10%; X7R;
-55°C to + 125°C; 0 ±15% degC MAX.
33
34
C9
DNP
DNP
0
0
C0603C474K4RAC; GRM188R71C474K
KEMET;MURATA
0.47UF
0.01UF
C1608C0G1H103J; CGA3E2C0G1H103J080AD;
GRM1885C1H103JA01
CAPACITOR; SMT (0603); CERAMIC CHIP; 0.01UF; 50V;
TOL = 5%; TG = -55°C to +125°C; TC = C0G
C10
TDK;TDK;MURATA
35
36
D1
JU4
DNP
DNP
DNP
DNP
DNP
DNP
DNP
DNP
0
0
LTST-C193KRKT-5A
TSW-106-25-T-S-RA
LQW18AS5N1J0Z
LITE-ON ELECTRONICS INC
SAMTEC
LTST-C193KRKT-5A
DIODE; LED; WATER CLEAR; RED; SMT; VF=2V; IF=0.005A
CONNECTOR; MALE; THROUGH HOLE; 0.025IN SQ POST HEADER; RIGHT ANGLE; 6PINS
INDUCTOR; SMT (0603); WIREWOUND; 5.1NH; 5%; 0.70A
RESISTOR; 0603; 0Ω; 0%; JUMPER; 0.1W; THICK FILM
TSW-106-25-T-S-RA
37
L1B
0
MURATA
5.1NH
0
38
R1-R5
R9
0
CRCW06030000Z0
VISHAY DALE
39
0
CRCW0603470RFK;ERJ-3EKF4700
CRCW06031M00JN
ERJ-3GEYJ472V
VISHAY DALE;PANASONIC
VISHAY DALE
470
1M
RESISTOR, 0603, 470Ω, 1%, 100PPM, 0.10W, THICK FILM
RESISTOR; 0603; 1MΩ; 5%; 200PPM; 0.10W; METAL FILM
RESISTOR; 0603; 4.7KΩ; 5%; 200PPM; 0.10W; THICK FILM
RESISTOR; 0402; 10Ω; 5%; 200PPM; 0.063W; THICK FILM
40
R10-R13
R17
0
41
0
PANASONIC
4.7K
10
42
R18
0
CRCW040210R0JN
VISHAY DALE
TOTAL
43
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MAX4146x EV Kit Schematics
2
1
3
1
3
1
2
1
2
ꢆ
3
4
2
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MAX4146x Evaluation Kit
MAX4146x EV Kit PCB Layout Diagrams
1.0’’
1.0’’
MAX4146x EV Kit PCB Layout—Top Layer
MAX4146x EV Kit Component Placement Guide—Top
Silkscreen
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MAX4146x Evaluation Kit
MAX4146x EV Kit PCB Layout Diagrams (continued)
1.0’’
1.0’’
MAX4146x EV Kit PCB Layout—Bottom Layer
MAX4146x EV Kit PCB Layout—Bottom Silk Layer
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MAX4146x Evaluation Kit
Appendix I – Detailed Software, Firmware, and Driver Installation Procedures
Download the MAX4146x EV kit Software Package
This software and firmware are available from the www.maximintegrated.com website.
1) Login to your MyMaxim account on the website
2) Click on the magnifying glass and search for the MAX41460 or similar part
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3) Click on the “Design Resources” link for the device or the EVKIT or click on the Design Resources tab on the
product web page
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MAX4146x Evaluation Kit
4) Click on the appropriate software link:
5) Click the file link on the software landing page to download the MAX4146x EV kit package.
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6) Review the Maxim Software License Agreement (SLA) and accept the terms by clicking on the Accept button.
7) Save the EVKIT distribution package to your desktop or other accessible location for later install.
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2) Double-Click the MAX4146xGUISetupV01.msi setup
Install the MAX4146x EV kit GUI Software
file and follow Setup Wizard prompts:
This software and firmware are available from the www.
maximintegrated.com website. Refer to the “Download
the MAX4146x EV kit Software Package” section for
information on obtaining the latest firmware from Maxim.
a. Click <Next>
b. Use the default Destination folder and click <Next>
c. Install the software by clicking the <Install> button
This process should take less than 10 minutes after
downloading the software, firmware, and driver package.
d. Click <Finish> when the setup process is
complete
1) Extract the Setup_MAX4146X_V1.0.0_EVKit_SW.zip
to a working folder
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Program the MAX32630FTHR Board with the MAX4146x Firmware
The FTHR board firmware comes pre-installed with every MAX4146x EV kit. This section describes how to install that
firmware for development or update purposes.
This software and firmware are available from the www.maximintegrated.com website. Refer to the “Download the
MAX4146x EV kit Software Package” section above for information on obtaining the latest firmware from Maxim.
1) Connect the MAX32630FTHR to the MAXREFDES100HDK or the MAX32625PICO
a. Use the fine pitch 10pin ribbon cable to connect the boards from the SWD (J3) header on the HDK to J4 on the
MAX32630FTHR.
MAXREFDES100HDK DAPLINK
MAX32625PICO DAPLINK
2) Connect the MAX32630FTHR to a power source
a. Use a micro-B USB cable to connect the MAX32630FTHR board to a suitable power source (no USB connectivity
is required). [The black USB cable in the photos.] Alternatively, you can power the board from a charged battery
as long as you remember to turn it on by pressing the power/reset button next to the battery connector. The board
turns on automatically when powered from the USB supply.
b. The status LED on the FTHR board should be lit a steady red.
3) Connect the MAXREFDES100HDK/MAX32625PICO to a PC
a. Use a micro-B USB cable to connect the HDK to a PC, through the connector marked HDK. [The white USB cable
in the photos.]
b. The status LED on the DAPLINK board will blink red when connecting.
c. After a few seconds of activity, the PC will recognize the DAPLINK as a standard USB drive.
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Windows 7/10 Example
4) Drag-and-drop or save the MAX4146x.bin program binary to the mbed or DAPLINK USB Drive
a. The FTHR board LED will shut off and the LED on the MAXREFDES100HDK / MAX32625PICO will slowly flash
red as the FTHR board is being programmed.
b. Once the programming is complete, the DAPLINK USB Drive will disconnect from the PC and reconnect as a USB
Drive again.
c. If the programming was successful, the contents of the DAPLINK USB Drive should include a DETAILS.TXT file.
If an ERROR.TXT file exists on the drive, check that the FTHR board had power during the programming process
and repeat steps 3 and 4.
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5) To ready the FTHR board for use, disconnect the
DAPLINK board (ribbon cable) and press the Reset
Button on the FTHR board or disconnect the FTHR
board from the USB power supply.
You must load the matching HDK image for the platform you
are programming in order for drag-n-drop programming to
work. For the MAX32630FTHR DAPLINK Image:
https://os.mbed.com/media/uploads/switches/
max32620_daplink_max32630fthr.bin
a. When the Reset button is pressed, the microcontroller
will restart and the newly programmed application will
begin to run or you can disconnect and reconnect the
USB cable if using a PC for power.
Update the MAX32630FTHR Board Driver
The required driver is available from the www.maxi-
mintegrated.com website. Refer to the “Download the
MAX4146x EV kit Software Package” section above for
information on obtaining the latest driver from Maxim.
Thelatestinformationandthesefirmwareupdateinstructions
can be found on the MAX32630FTHR board mBed web
site: https://os.mbed.com/platforms/MAX32630FTHR/
or by visiting the mBed home page (https://www.mbed.
com/) and searching for “MAX32630FTHR”.
1) Connect the MAX32630FTHR to the PCs USB port.
2) In Device Manager, right click Other devices =>
If you do not have an mbed account, choose “Signup”,
and create your mbed Account. Otherwise, log in with
your normal username and password. This will give you
access to the website, tools, libraries and documentation.
“CDC Device” or “mbed Composite Device”.
From: https://os.mbed.com/teams/MaximIntegrated/
wiki/MAXREFDES100HDK
Note that the MAXREFDES100HDK hardware supports
multiple mbed platforms, and the firmware needs to match
the platform you are using to enable all the features. The
virtual serial port and CMSIS-DAP debug adapter are
universal, but the drag-n-drop programming must match
the target platform being programmed. To update the
firmware you need to put the board in maintenance mode
and copy the new firmware image to the board. To put the
board in maintenance mode you need to hold the button
while the board is being connected to the computer at the
HDK connector. This will activate maintenance mode and
the board will appear to the computer as a thumb drive
named “MAINTENANCE”. Drag and drop the new image
onto the MAINTENANCE drive and the board will install
the new firmware. When the update is complete, the disk
will disconnect and reappear as a thumb drive named
“DAPLINK”. There are links to the firmware images below.
Please Note: The board can be sensitive to excess loading on
the crystal which could prevent it from entering maintenance
mode. We recommend holding the board by the edges when
entering maintenance mode. It may be easier to hold the button
while inserting the USB cable at the computer end, rather than
trying to insert the cable into the micro USB connector.
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3) Click “Update Driver Software” then select Browse my computer for driver software.
4) Select “Let me pick from a list of available drivers on my computer”.
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5) On a Windows 10 operating system, click <Have Disk…> button. On a Windows 7 system, click the “Show All
Devices” check box.
Win 10: <Have Disk…> Button.
Win 7: “Show All Devices” Checkbox.
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6) On a Win 10 system, skip to step 7; on a Win 7 system select a generic Manufacturer type (usually enclosed in
brackets) and then click the <Have Disk…> button.
Win 7: Manufacturer Selection.
7) Browse the path of driver folder and for Win 10 click <OK>; for Win 7 select “maxim_usb-uart_adapter” then click
<Open>.
Win 10: browse to the path and click <OK>.
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Win 7: select driver, click <Open>.
8) Click Next.
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9) Ignore the warnings and click Install…
Win 10 and Win 7 Unverified Publisher Warning.
Win 7 “not recommended” Warning.
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pullup resistors (on the FTHR board and the MAX4146x
EV kit) should not be populated simultaneously, otherwise
incorrect I2C signal levels may result. Likewise, if other
I2C slaves are added to the bus, only one set of pullup
resistors should be used.
Appendix II – Hardware Modifications
2
I C Pullup Resistors
To accommodate the various operating modes of the
MAX4146x products on one board, the shared digital pins
have many interface modes over which they operate.
The DATAIN net is the most dynamic of these interfaces,
serving three functions:
Matching Network
For optimal performance of the transmitter PA, the antenna
matching network should be tuned to the operating
frequency of the radio.
1) DATA input for transmission in preset mode for the
MAX41461–MAX41464 parts.
To change the tuning of the matching network, two inductors
(L1 and L2) and two capacitors (C6 and C7) should be
adjusted according to Table A2-1:
2) SDA when MAX41461–MAX41464 parts are config-
2
ured for I C mode.
3) SDI or MOSI for SPI control of the MAX41460 and
as DATA input when transmitting.
With preset parts (MAX41461–MAX41464) used in preset
mode, the DATA pin must be held low during power-up
of the device. A light pulldown resistor: R16, 100kΩ to
ground satisfies this requirement.
To properly establish the open-drain topology of the two-
pin serial interface the user must have the SDA and SCL
lines pulled-up to the supply voltage. The resistor foot-
prints: R14 and R15 are provided on the MAX4146x EV
kit for this purpose. By connecting JU5 (1-2 and 3-4) both
lines will be pulled-up to the VDD supply.
These pullups should only be connected when the preset
pins (SEL0 and SEL1) are both connected to ground, thus
selecting the I2C interface mode of the MAX4146x.
It should be noted that the FTHR board also has foot-
prints for I2C pullup resistors at R6 and R11. Both sets of
2
Figure A2-1. I C Pullup Resistors.
Figure A2-2. Matching Network.
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Table A2-1. MAX4146x EV Kit Matching Network Component Values
LOAD
IMPEDANCE
KIT
fC
POUT
BOOST*
C7
C8
L2
C6
L1A
MAX41461EVKIT-315
315MHz
+13dBm
+16dBm
—
0
165Ω
100pF 8.2pF 51nH 4.7pF 47nH
100pF 8.0pF 27nH 8.0pF 30nH
315MHz
High-Power
68Ω
MAX41462EVKIT-434
MAX41460EVKIT#
MAX41464EVKIT#
434MHz
+13dBm
—
180Ω
100pF 8.2pF 30nH 5.6pF 24nH
434MHz
High-Power
+16dBm
+11dBm
+16dBm
+11dBm
+16dBm
0
—
1
57Ω
190Ω
33Ω
100pF 8.0pF 19nH 7.0pF 24nH
100pF 4.7pF 18nH 3.3pF 5.6nH
100pF 3.0pF 9.1nH 3.3pF 3.0nH
MAX41464EVKIT-868
868MHz
868MHz
High-Power
MAX41463EVKIT-915
MAX41460EVKIT-915
915MHz
—
1
190Ω
34Ω
100pF 3.9pF 12nH
open 5.1nH
863-928MHz
High-Power*
100pF 10pF 5.6nH 10pF 6.2nH
*PA boost mode enabled through the SHDN register (0x05), PA_BOOST bit [0]
Additional Harmonic Filtering
Table A2-2. External LPF Component
Values
Operating the MAX4146x in a high-power mode may
impact ESTI compliance and will be particularly notice-
able when using a device in the 434MHz band. The sec-
ond harmonic of 434MHz (868MHz) falls within the strict
Out Of Band (OOB) power limit of -36dBm. In this case
an addition low-pass filter (LPF) may be beneficial to the
radio designer. In combination with the high-power match
at 434MHz noted above, the following LPF has shown
compliant operational results.
EXTERNAL
QTY
DESCRIPTION
PART
7.5pF ± 0.25pF Capacitor (0402)
muRata GRM1555C1H7R5FZ01
C1-C2
2
2
1
19nH ± 5% Inductor (0402)
Coilcraft 0402CS-19NXJB
L1, L3
L2
36nH ± 5% Inductor (0402)
Coilcraft 0402CS-19NXJB
Figure A2-3. External Filter
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PA Boost Mode Network Design
The switch-mode PA architecture inherently deals with voltage levels which are higher than the VDD supply. When
operating the PA in Boost Mode, even higher voltages can be presented to the PA node. If the user wishes to experiment
with additional boost capabilities, the MAX4146x EV kit has a separate output network that allows the user to limit the
PA voltage swing.
The optional R18/L1B network can be used to reduce the voltage swing at the PA node by inserting a resistor in series
with the PA bias inductor. It is recommended that C9 and C10 be populated as shown, this helps ‘fix’ the sub-VDD supply
below the supply voltage.
For additional information on switch-mode PAs similar to the one used in this transmitter, see Application Note 3589–
Power Amplifier Theory for High-Efficiency Low-Cost ISM-Band Transmitters.
Figure A2-4. Matching Network
Pmod Header Interface
The MAX4146x EV kit provides a Pmod-compatible header
footprint providing yet another built-in interface to the
transmitter. The JU4 connector can be populated with a
6-pin, 100mil, right-angle header such as a SAMTEC TSW-
106-25-T-S-RA, allowing direct connections to the CSB,
DATAIN, CLKOUT, SCLK/SDA, Ground, and VDD lines.
The Pmod interface can be used in combination with the
Maxim MAX32600MBED kit and the MAXREFDES72#
Arduino Uno R3 to PMOD shield adaptor. When using
the Pmod interface to supply the MAX4146X EV kit with
power, make sure to connect the JU1 jumper between
Figure A2-5. MAX4146x EV kit Pmod Interface
pins 2-3.
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Appendix III – Pinout Sheets
MAX4146x EV Kit
300MHz-928MHz (G)FSK Transmitter with I C Interface
2
MAX4146x ASK/FSK TRANSMITTER EV KIT
FTHR
3.3V
N/A
L3OUT
N/A
GND
GND
N/A
FTHR
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
SCLK
MOSI
SCLK
MOSI
SSEL
CSB
N/A
N/A
MISO
MISO
N/A
N/A
SCL
SDA
SCL
SDA
GND
GND
maxim
0.9" x 2.0" – PCB
0.9" x 2.375" – PCB + Connector
integratedTM
Maxim Integrated
│ 41
www.maximintegrated.com
Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
Maxim Integrated
│ 42
www.maximintegrated.com
Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
MAX32630FTHR
ARM Cortex-M4F microcontroller rapid development platform.
Maxim Integrated
│ 43
www.maximintegrated.com
Evaluates: MAX41460/1/2/3/4
MAX4146x Evaluation Kit
Revision History
REVISION REVISION
PAGES
CHANGED
DESCRIPTION
NUMBER
DATE
0
1
2
3
8/18
Initial release
—
9/18
Updated Ordering Information table
19
11/18
12/18
Updated Ordering Information table and title of data sheet
Updated Ordering Information table and title of data sheet
1–44
1–44
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
©
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
2018 Maxim Integrated Products, Inc.
│ 44
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