ADF7241 datasheet(2/72 Pages) AD

2 / 72 page

ADF7241

Rev. 0 | Page 2 of 72

TABLE OF CONTENTS

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

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

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

Revision History ............................................................................... 2

General Description ......................................................................... 3

Specifications..................................................................................... 5

General Specifications ................................................................. 5

RF Frequency Synthesizer Specifications.................................. 5

Transmitter Specifications........................................................... 6

Receiver Specifications ................................................................ 6

Auxiliary Specifications ............................................................... 8

Current Consumption Specifications ........................................ 9

Timing and Digital Specifications.............................................. 9

Timing Diagrams........................................................................ 11

Absolute Maximum Ratings.......................................................... 15

ESD Caution................................................................................ 15

Pin Configuration and Function Descriptions........................... 16

Typical Performance Characteristics ........................................... 18

Terminology .................................................................................... 22

Radio Controller ............................................................................. 23

Sleep Modes................................................................................. 25

RF Frequency Synthesizer ............................................................. 26

RF Frequency Synthesizer Calibration .................................... 26

RF Frequency Synthesizer Bandwidth..................................... 27

RF Channel Frequency Programming..................................... 27

Reference Crystal Oscillator ..................................................... 27

Transmitter ...................................................................................... 28

Transmit Operating Modes ....................................................... 28

IEEE 802.15.4 Automatic RX-To-TX Turnaround Mode..... 30

Power Amplifier.......................................................................... 30

Receiver............................................................................................ 33

Receive Operation ...................................................................... 33

Receiver Calibration................................................................... 33

Receive Timing and Control ....................................................... 35

Clear Channel Assessment (CCA) ........................................... 36

Link Quality Indication (LQI) .................................................. 36

Automatic TX-to-RX Turnaround Mode ............................... 37

IEEE 802.15.4 Frame Filtering, Automatic Acknowledge, and

Automatic CSMA/CA................................................................ 37

Receiver Radio Blocks ............................................................... 39

SPORT Interface ............................................................................. 40

SPORT Mode .............................................................................. 40

Device Configuration .................................................................... 41

Configuration Values ................................................................. 41

RF Port Configurations/Antenna Diversity................................ 42

Auxillary Functions........................................................................ 43

Temperture Sensor ..................................................................... 43

Battery Monitor .......................................................................... 43

Wake-Up Controller (WUC).................................................... 43

Transmit Test Modes.................................................................. 44

Serial Peripheral interface (SPI) ................................................... 45

General Characteristics ............................................................. 45

Command Access....................................................................... 45

Status Word ................................................................................. 45

Memory Map .................................................................................. 47

BBRAM........................................................................................ 47

Modem Configuration RAM (MCR) ...................................... 47

Program ROM ............................................................................ 47

Program RAM ............................................................................ 47

Packet RAM ................................................................................ 47

Memory Access............................................................................... 49

Writing to the ADF7241............................................................ 50

Reading from the ADF7241...................................................... 50

Downloadable Firmware Modules............................................... 53

Interrupt Controller ....................................................................... 54

Configuration ............................................................................. 54

Description of Interrupt Sources ............................................. 55

Applications Circuits...................................................................... 56

Outline Dimensions ....................................................................... 71

Ordering Guide .......................................................................... 71

REVISION HISTORY

1/11—Revision 0: Initial Version

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