ADF7021-N
TABLE OF CONTENTS
Features .............................................................................................. 1
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...................................................................... 39
Image Rejection Calibration..................................................... 40
Packet Structure and Coding.................................................... 42
Programming After Initial Power-Up ..................................... 42
Applications Circuit................................................................... 45
Serial Interface ................................................................................ 46
Readback Format........................................................................ 46
Interfacing to a Microcontroller/DSP ..................................... 48
Register 0—N Register............................................................... 49
Register 1—VCO/Oscillator Register...................................... 50
Register 2—Transmit Modulation Register ............................ 51
Register 3—Transmit/Receive Clock Register........................ 52
Register 4—Demodulator Setup Register ............................... 53
Register 5—IF Filter Setup Register......................................... 54
Register 6—IF Fine Cal Setup Register ................................... 55
Register 7—Readback Setup Register...................................... 56
Register 8—Power-Down Test Register .................................. 57
Register 9—AGC Register......................................................... 58
Register 10—AFC Register ....................................................... 59
Register 11—Sync Word Detect Register................................ 60
Register 12—SWD/Threshold Setup Register........................ 60
Register 13—3FSK/4FSK Demod Register ............................. 61
Register 14—Test DAC Register............................................... 62
Register 15—Test Mode Register ............................................. 63
Outline Dimensions....................................................................... 64
Ordering Guide .......................................................................... 64
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
General Description......................................................................... 3
Specifications..................................................................................... 4
RF and PLL Specifications........................................................... 4
Transmission Specifications........................................................ 5
Receiver Specifications ................................................................ 6
Digital Specifications ................................................................... 9
General Specifications ............................................................... 10
Timing Characteristics .............................................................. 11
Timing Diagrams........................................................................ 12
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.................................................................................... 30
REVISION HISTORY
2/08—Revision 0: Initial Version
Rev. 0 | Page 2 of 64
5秒后页面跳转
MAX6675资料手册参数详解、引脚配置说明
LM258引脚图及功能介绍、主要参数分析
CD4052资料手册参数详解、引脚配置说明
一文带你了解TPS5430资料手册分析：参数介绍、引脚配置说明
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
