ADF7242BCPZ datasheet(2/108 Pages) AD

Teilenummer	ADF7242BCPZ

Bauteilbeschribung	Low Power IEEE 802.15.4/Proprietary GFSK/FSK Zero-IF 2.4 GHz Transceiver IC

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Hersteller	AD [Analog Devices]

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ADF7242

Rev. 0 | Page 2 of 108

TABLE OF CONTENTS

Features .............................................................................................. 1

Applications....................................................................................... 1

Functional Block Diagram .............................................................. 1

Revision History ............................................................................... 3

General Description ......................................................................... 4

Specifications..................................................................................... 6

General Specifications ................................................................. 6

RF Frequency Synthesizer Specifications.................................. 6

Transmitter Specifications........................................................... 7

Receiver Specifications ................................................................ 8

Auxiliary Specifications ............................................................. 11

Current Consumption Specifications ...................................... 12

Timing and Digital Specifications............................................ 13

Timing Diagrams........................................................................ 15

IEEE 802.15.4 TX SPORT Mode Timing Diagrams.............. 18

GFSK/FSK RX SPORT Mode Timing Diagrams ................... 18

Absolute Maximum Ratings.......................................................... 22

ESD Caution................................................................................ 22

Pin Configuration and Function Descriptions........................... 23

Typical Performance Characteristics ........................................... 25

Terminology .................................................................................... 34

Radio Controller ............................................................................. 35

Sleep Modes................................................................................. 37

RF Frequency Synthesizer ............................................................. 38

RF Frequency Synthesizer Calibration .................................... 38

RF Frequency Synthesizer Bandwidth..................................... 38

RF Channel Frequency Programming..................................... 39

Reference Crystal Oscillator ..................................................... 39

Transmitter ...................................................................................... 40

Transmit Operating Modes ....................................................... 40

Transmitter in IEEE 802.15.4-2006 Mode .............................. 40

IEEE 802.15.4 Automatic RX-To-TX Turnaround Mode..... 43

Transmitter in GFSK/FSK Mode.............................................. 43

Power Amplifier.......................................................................... 46

Receiver............................................................................................ 48

Receive Operating Modes ......................................................... 48

Receiver in IEEE 802.15.4-2006 Mode .................................... 48

Receiver Calibration................................................................... 49

IEEE 802.15.4-2006 Receive Timing and Control ..................... 50

Clear Channel Assessment (CCA)........................................... 51

Link Quality Indication (LQI).................................................. 52

IEEE 802.15.4 Automatic TX-to-RX Turnaround Mode...... 53

IEEE 802.15.4 Frame Filtering, Automatic Acknowledge, and

Automatic CSMA/CA................................................................ 53

Receiver in GFSK/FSK Mode ................................................... 56

Receiver Radio Blocks ............................................................... 61

SPORT Interface ............................................................................. 63

GFSK/FSK SPORT Mode .......................................................... 63

IEEE 802.15.4-2006 SPORT Mode........................................... 65

Device Configuration .................................................................... 66

Configuration Values Common to IEEE 802.15.4 and

GFSK/FSK Modes ...................................................................... 67

Configuration Values for GFSK/FSK Packet and SPORT

Modes........................................................................................... 67

Configuration Values for IEEE 802.15.4-2006 Packet and

SPORT Modes............................................................................. 68

RF Port Configurations/Antenna Diversity................................ 69

Auxillary Functions........................................................................ 70

Temperture Sensor ..................................................................... 70

Battery Monitor .......................................................................... 70

Wake-Up Controller (WUC).................................................... 70

Transmit Test Modes.................................................................. 71

Serial Peripheral interface (SPI) ................................................... 72

General Characteristics ............................................................. 72

Command Access....................................................................... 72

Status Word ................................................................................. 72

Memory Map .................................................................................. 74

BBRAM........................................................................................ 74

Modem Configuration RAM (MCR) ...................................... 74

Program ROM ............................................................................ 74

Program RAM ............................................................................ 74

Packet RAM ................................................................................ 74

Memory Access............................................................................... 76

Writing to the ADF7242............................................................ 77

Reading from the ADF7242...................................................... 77

Downloadable Firmware Modules............................................... 80

Interrupt Controller ....................................................................... 81

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