Microchip Technology MRF24J40MA User Manual

MRF24J40MA

Data Sheet

2.4 GHz IEEE Std. 802.15.4 RF Transceiver Module

™

Note the following details of the code protection feature on Microchip devices:

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Trademarks

The Microchip name and logo, the Microchip logo, Accuron, dsPIC, K

EELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,

PICSTART, PRO MATE, rfPIC and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

FilterLab, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL, SmartSensor and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM, PICDEM.net, PICtail, PIC

logo, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated in the U.S.A.

All other trademarks mentioned herein are property of their respective companies.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.

MCUs and dsPIC® DSCs, KEELOQ

code hopping

MRF24J40MA

2.4 GHz IEEE Std. 802.15.4

Features:

• IEEE Std. 802.15.4™ Compliant RF Transceiver

• Supports ZigBee®, MiWi™, MiWi™ P2P and Proprietary Wireless Networking Protocols

• Small size: 0.7” x 1.1” (17.8 mm x 27.9 mm) Surface Mountable

• Integrated crystal, internal voltage regulator, matching circuitry and PCB antenna

• Easy integration into final product - minimize product development, quicker time to market

• Radio regulation certified for United States (FCC), Canada (IC) and Europe (ETSI)

• Compatible with Microchip Microcontroller families (PIC18F, PIC24F/H, dsPIC33 and PIC32)

Operational:

• 20/10/5/2.5 MHz Clock Output:

- Available to drive microcontroller clock

• Operating Voltage: 2.4 - 3.6V (3.3V typical)

• Temperature Range: -40°C to +85°C Industrial

• Simple Four-Wire SPI Interface

• Low-Current Consumption:

- RX mode: 18 mA (typical)

- TX mode: 22 mA (typical)

-Sleep: 2 μA (typical)

• Supports Power-Save mode

™

RF Transceiver Module

RF/Analog Features:

• ISM Band 2.405 - 2.48 GHz Operation

• Data Rate: 250 Kbps

• -95 dBm Typical Sensitivity and 0 dBm Maximum Input Level

• +0 dBm Typical Output Power and 40 dB TX Power Control Range

• Integrated, Low Phase Noise VCO, Frequency Synthesizer and PLL Loop Filter

• Digital VCO and Filter Calibration

• Integrated RSSI ADC and I/Q DACs

• Integrated LDO

• High Receiver and RSSI Dynamic Range

MAC/Baseband Features:

• Hardware CSMA-CA Mechanism, Automatic ACK Response and FCS Check

• Independent Beacon, Transmit and GTS FIFO

• Hardware Security Engine (AES-128) with CTR, CCM and CBC-MAC modes

• Supports all CCA modes and RSS/LQI

• Automatic Packet Retransmit Capable

• Supports In-Line or Stand-Alone modes for both Encryption and Decryption

FIGURE 1: PIN DIAGRAM

GND

RESET

WAKE

SCK

INT SDI

1 2 3 4 5 6

GND

12 11 GN D

CLKOUT

9 8

CS SDO

MRF24J40MA

1.0 Device Overview .......................................................................................................................................................................... 5

2.0 Microcontroller Interface............................................................................................................................................................... 9

3.0 Circuit Description ...................................................................................................................................................................... 11

4.0 Regulatory Approval................................................................................................................................................................... 13

5.0 Electrical Characteristics ........................................................................................................................................................... 17

6.0 Packaging Information................................................................................................................................................................ 19

Appendix A: Revision History............................................................................................................................................................... 21

The Microchip Web Site ....................................................................................................................................................................... 23

Customer Change Notification Service ................................................................................................................................................ 23

Customer Support ................................................................................................................................................................................ 23

Reader Response ................................................................................................................................................................................ 24

MRF24J40MA Product Identification System....................................................................................................................................... 25

MRF24J40MA

TO OUR VALUED CUSTOMERS

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If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via E-mail at docerrors@microchip.com or fax the Reader Response Form in the back of this data sheet to (480) 792-4150. We welcome your feedback.

Most Current Data Sheet

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http://www.microchip.com

You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page. The last character of the literature number is the version number, (e.g., DS30000A is version A of document DS30000).

Errata

An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision of silicon and revision of document to which it applies.

To determine if an errata sheet exists for a particular device, please check with one of the following:

• Microchip’s Worldwide Web site; http://www.microchip.com

• Your local Microchip sales office (see last page) When contacting a sales office, please specify which device, revision of silicon and data sheet (include literature number) you are

using.

Customer Notification System

MRF24J40MA

NOTES:

MRF24J40MA

1.0 DEVICE OVERVIEW

The MRF24J40MA is a 2.4 GHz IEEE Std. 802.15.4™ compliant, surface mount module with integrated crystal, internal voltage regulator, matching circuitry and PCB antenna. The MRF24J40MA module operates in the non-licensed 2.4 GHz frequency band and is FCC, IC, and ETSI compliant. The integrated module design frees the end user from extensive RF, antenna design, and regulatory compliance testing and allows quicker time to market.

Figure 1-1 shows a simplified block diagram of the MRF24J40MA module. The module is based on the Microchip Technology MRF24J40 IEEE 802.15.4™ 2.4 GHz RF Transceiver chip. The module interfaces to many popular Microchip PIC® microcontrollers via a 4wire serial SPI interface, interrupt, wake, reset, power and ground. The module has an integrated PCB antenna and matching circuitry all in a compact size.

FIGURE 1-1: MRF24J40MA BLOCK DIAGRAM

MRF24J40MA IEEE Std. 802.15.4 Module

The MRF24J40MA module is compatible with Microchip's ZigBee®, MiWi, and MiWi P2P software stacks. Each software stack is available as a free download, including source code, from the Microchip web site http://www.microchip.com/wireless.

The MRF24J40MA module has received regulatory approvals for modular devices in the United States (FCC), Canada (IC) and Europe (ETSI). Modular approval removes the need for expensive RF and antenna design and allows the end user to place the MRF24J40MA module inside a finished product and not require testing for an intentional radiator (RF transmitter). See Section 4.0 “Regulatory Approval” for specific requirements to be followed by the end user.

This user's guide describes the installation, pin out, and voltage requirements for optimum operation of the module. Data communications with the MRF24J40MA module is documented in the MRF24J40 IEEE

802.15.4™ 2.4 GHz RF Transceiver Data Sheet

(DS39776). Refer to the MRF24J40 data sheet for specific serial interface protocol and register definitions.

PCB

Antenna

Discrete

Matching

Circuitry

Physical

MRF24J40

MAC

20 MHz Crystal

Interface

Power

Management

SPI

Digital

I/O

Power

MRF24J40MA

TABLE 1-1: PIN DESCRIPTION

Pin Symbol Type Description

1 GND Power

2 RESET

3 WAKE DI External wake-up trigger

4 INT DO Interrupt pin to microcontroller

5 SDI DI Serial interface data input

6 SCK DI Serial interface clock

7 SDO DO Serial interface data output from MRF24J40

8CS

9 CLKOUT DO 20/10/5/2.5 MHz clock output

10 V

IN Power Power supply

11 GND Ground Ground

12 GND Ground Ground

Legend: Pin type abbreviation: A = Analog, D = Digital, I = Input, O = Output

FIGURE 1-2: MOUNTING DETAILS

Ground

DI Global hardware reset pin

DI Serial interface enable

Edge of PCB

PCB Ground Plane (Counterpoise)

Extend as far as possible to

the sides and below the module

(at least 0.4 inches on each side)

for best performance

1.2”

0.470”

0.4” 0.4”

0.4”

Keep area around antenna (approximately 1.2 inches) clear of metalic structures for best performance

1.2”

FIGURE 1-3: RECOMMENDED PCB

FOOTPRINT

FIGURE 1-4: MODULE DETAILS

MRF24J40MA

+ 19 hidden pages

Microchip Technology MRF24J40MA User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Features:

Operational:

RF/Analog Features:

MAC/Baseband Features:

Table of Contents

Most Current Data Sheet

Errata

Customer Notification System

1.0 DEVICE OVERVIEW

FIGURE 1-1: MRF24J40MA BLOCK DIAGRAM

TABLE 1-1: PIN DESCRIPTION

FIGURE 1-2: MOUNTING DETAILS

FIGURE 1-4: MODULE DETAILS