MAX41461EVKIT-315_技术文档

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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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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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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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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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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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MAX4146x Evaluation Kit

Figure 15. 4-Wire SPI Setting.

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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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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

GND

Open

VDD

GND

Open

VDD

GND

Open

VDD

GND

Open

VDD

I C Interface

GND

Open

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

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

GND

Open

VDD

GND

Open

VDD

GND

Open

VDD

GND

Open

VDD

I C Interface

GND

Open

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

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

FTHR

N/A

L3OUT

N/A

GND

N/A

FTHR

N/A

SCLK

MOSI

SCLK

MOSI

SSEL

CSB

N/A

MISO

N/A

SCL

SDA

SCL

SDA

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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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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Evaluates: MAX41460/1/2/3/4

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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Evaluates: MAX41460/1/2/3/4

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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Evaluates: MAX41460/1/2/3/4

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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Evaluates: MAX41460/1/2/3/4

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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Evaluates: MAX41460/1/2/3/4

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

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.

Maxim Integrated

│ 19

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Evaluates: MAX41460/1/2/3/4

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

5

3

0.47µF ± 10% Capacitor (0603)

muRata GRM188R71C474K

C3

C4

C5

C6

C7

C8

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

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

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

MAX41464GUB+ TSSOP10

Connector Male Through Hole

Sullins PRPC016SFAN-RC

H1

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.

Maxim Integrated

│ 20

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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

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

GRM1885C1H221JA01

GRM1555C1H3R3BA01

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

2

GJM1555C1H4R7BB01

MURATA

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

3

1

3

2

1

PRPC016SFAN-RC

PRPC012SFAN-RC

PEC03SAAN

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

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

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

—

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

MAX41464868MHZ

MAX32630FTHR

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

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

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

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 Evaluation Kit

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’’

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’’

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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MAX4146x Evaluation Kit

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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MAX4146x Evaluation Kit

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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MAX4146x Evaluation Kit

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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MAX4146x Evaluation Kit

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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MAX4146x Evaluation Kit

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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MAX4146x Evaluation Kit

Win 7: select driver, click <Open>.

8) Click Next.

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MAX4146x Evaluation Kit

9) Ignore the warnings and click  Install…

Win 10 and Win 7 Unverified Publisher Warning.

Win 7 “not recommended” Warning.

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MAX4146x Evaluation Kit

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

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

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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MAX4146x Evaluation Kit

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

FTHR

N/A

L3OUT

N/A

GND

N/A

FTHR

N/A

SCLK

MOSI

SCLK

MOSI

SSEL

CSB

N/A

MISO

N/A

SCL

SDA

SCL

SDA

GND

maxim

0.9" x 2.0" – PCB

0.9" x 2.375" – PCB + Connector

integratedTM

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MAX4146x Evaluation Kit

MAX32630FTHR

ARM Cortex-M4F microcontroller rapid development platform.

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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

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


型号：	MAX41461EVKIT-315
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

MAX41461EVKIT-315 [MAXIM]

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