EVAL-ADF7020DBZ2 datasheet(2/48 Pages) AD

2 / 48 page

ADF7020

Data Sheet

Rev. D | Page 2 of 48

TABLE OF CONTENTS

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

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

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

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

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

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

Timing Characteristics..................................................................... 8

Timing Diagrams.......................................................................... 8

Absolute Maximum Ratings.......................................................... 10

ESD Caution................................................................................ 10

Pin Configuration and Function Descriptions........................... 11

Typical Performance Characteristics ........................................... 13

Frequency Synthesizer ................................................................... 15

Reference Input........................................................................... 15

Choosing Channels for Best System Performance................. 17

Transmitter ...................................................................................... 18

RF Output Stage.......................................................................... 18

Modulation Schemes.................................................................. 18

Receiver............................................................................................ 20

RF Front End............................................................................... 20

RSSI/AGC.................................................................................... 21

FSK Demodulators on the ADF7020....................................... 21

FSK Correlator/Demodulator................................................... 21

Linear FSK Demodulator .......................................................... 23

AFC .............................................................................................. 23

Automatic Sync Word Recognition ......................................... 24

Applications Information .............................................................. 25

LNA/PA Matching...................................................................... 25

Image Rejection Calibration..................................................... 26

Transmit Protocol and Coding Considerations ..................... 27

Device Programming after Initial Power-Up ......................... 27

Interfacing to Microcontroller/DSP ........................................ 27

Power Consumption and battery lifetime calculations......... 28

Serial Interface ................................................................................ 31

Readback Format........................................................................ 31

Registers........................................................................................... 32

Mode)........................................................................................... 34

Mode)........................................................................................... 36

Outline Dimensions....................................................................... 47

Ordering Guide .......................................................................... 47

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