Datenblatt-Suchmaschine für elektronische Bauteile |
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ADF7020-1BCPZ-RL Datenblatt(PDF) 2 Page - Analog Devices |
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ADF7020-1BCPZ-RL Datenblatt(HTML) 2 Page - Analog Devices |
2 / 48 page ADF7020-1 Rev. 0 | Page 2 of 48 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 General Description ......................................................................... 3 Specifications..................................................................................... 4 Timing Characteristics ................................................................ 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 Section.............................................................................. 20 RF Front End............................................................................... 20 RSSI/AGC.................................................................................... 21 FSK Demodulators on the ADF7020-1 ................................... 21 FSK Correlator/Demodulator................................................... 21 Linear FSK Demodulator .......................................................... 23 AFC Section ................................................................................ 23 Automatic Sync Word Recognition ......................................... 24 Applications..................................................................................... 25 LNA/PA Matching...................................................................... 25 Transmit Protocol and Coding Considerations ..................... 26 Device Programming after Initial Power-Up ......................... 26 Interfacing to Microcontroller/DSP ........................................ 26 Serial Interface ................................................................................ 29 Readback Format........................................................................ 29 Register 0—N Register............................................................... 30 Register 1—Oscillator/Filter Register...................................... 31 Register 2—Transmit Modulation Register (ASK/OOK Mode) ..................................................................... 32 Register 2—Transmit Modulation Register (FSK Mode) ..... 33 Register 2—Transmit Modulation Register (GFSK/GOOK Mode)................................................................ 34 Register 3—Receiver Clock Register ....................................... 35 Register 4—Demodulator Set-up Register.............................. 36 Register 5—Sync Byte Register................................................. 37 Register 6—Correlator/Demodulator Register ...................... 38 Register 7—Readback Set-up Register .................................... 39 Register 8—Power-Down Test Register .................................. 40 Register 9—AGC Register......................................................... 41 Register 10—AGC 2 Register.................................................... 42 Register 11—AFC Register ....................................................... 42 Register 12—Test Register......................................................... 43 Register 13—Offset Removal and Signal Gain Register ....... 44 Outline Dimensions ....................................................................... 45 Ordering Guide .......................................................................... 45 REVISION HISTORY 12/05—Revision 0: Initial Version |
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