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EVAL-ADF7021DBZ3 Datasheet(PDF) 2 Page - Analog Devices

Part # EVAL-ADF7021DBZ3
Description  High Performance Narrow-Band Transceiver IC
Download  64 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

EVAL-ADF7021DBZ3 Datasheet(HTML) 2 Page - Analog Devices

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ADF7021
Data Sheet
Rev. B | Page 2 of 64
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 3
General Description ......................................................................... 4
Specifications..................................................................................... 5
RF and PLL Specifications........................................................... 5
Transmission Specifications........................................................ 6
Receiver Specifications ................................................................ 8
Digital Specifications ................................................................. 10
General Specifications ............................................................... 11
Timing Characteristics .............................................................. 11
Absolute Maximum Ratings.......................................................... 15
ESD Caution................................................................................ 15
Pin Configuration and Function Descriptions........................... 16
Typical Performance Characteristics ........................................... 18
Frequency Synthesizer ................................................................... 22
Reference Input........................................................................... 22
MUXOUT.................................................................................... 23
Voltage Controlled Oscillator (VCO) ...................................... 24
Choosing Channels for Best System Performance................. 25
Transmitter ...................................................................................... 26
RF Output Stage.......................................................................... 26
Modulation Schemes.................................................................. 26
Spectral Shaping ......................................................................... 28
Modulation and Filtering Options ........................................... 29
Transmit Latency ........................................................................ 29
Test Pattern Generator............................................................... 29
Receiver Section.............................................................................. 30
RF Front End............................................................................... 30
IF Filter......................................................................................... 30
RSSI/AGC.................................................................................... 31
Demodulation, Detection, and CDR ....................................... 32
Receiver Setup............................................................................. 34
Demodulator Considerations ................................................... 36
AFC Operation ........................................................................... 36
Automatic Sync Word Detection (SWD)................................ 37
Applications Information .............................................................. 38
IF Filter Bandwidth Calibration ............................................... 38
LNA/PA Matching...................................................................... 38
Image Rejection Calibration ..................................................... 39
Packet Structure and Coding.................................................... 41
Programming After Initial Power-Up ..................................... 41
Applications Circuit ................................................................... 44
Serial Interface ................................................................................ 45
Readback Format........................................................................ 45
Interfacing to Microcontroller/DSP ........................................ 46
Register 0—N Register............................................................... 47
Register 1—VCO/Oscillator Register ...................................... 48
Register 2—Transmit Modulation Register ............................ 49
Register 3—Transmit/Receive Clock Register........................ 50
Register 4—Demodulator Setup Register ............................... 51
Register 5—IF Filter Setup Register......................................... 52
Register 6—IF Fine Cal Setup Register ................................... 53
Register 7—Readback Setup Register...................................... 54
Register 8—Power-Down Test Register .................................. 55
Register 9—AGC Register......................................................... 56
Register 10—AFC Register ....................................................... 57
Register 11—Sync Word Detect Register ................................ 58
Register 12—SWD/Threshold Setup Register........................ 58
Register 13—3FSK/4FSK Demod Register ............................. 59
Register 14—Test DAC Register............................................... 60
Register 15—Test Mode Register ............................................. 61
Outline Dimensions ....................................................................... 62
Ordering Guide .......................................................................... 62


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