FX929A Datasheet, PDF(2/44 Page) CML Microcircuits

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FX929A Datasheet, PDF (2/44 Pages) CML Microcircuits – 4-Level FSK Modem Data Pump

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4-Level FSK Modem Data Pump

FX929A

Section

CONTENTS

Page

1.0 Features.......................................................................................................... 1

1.1 Brief Description............................................................................................ 1

1.2 Block Diagram................................................................................................ 3

1.3 Signal List....................................................................................................... 4

1.4 External Components.................................................................................... 6

1.5 General Description....................................................................................... 7

1.5.1 Description of Blocks ....................................................................... 7

1.5.2 Modem - ÂµC Interaction ................................................................. 10

1.5.3 Binary to Symbol Translation......................................................... 11

1.5.4 Frame Structure ............................................................................ 12

1.5.5 The Programmer's View ................................................................ 13

1.5.5.1 Data Block Buffer ....................................................................... 13

1.5.5.2 Command Register .................................................................... 14

1.5.5.3 Control Register ......................................................................... 22

1.5.5.4 Mode Register............................................................................ 23

1.5.5.5 Status Register........................................................................... 25

1.5.5.6 Data Quality Register ................................................................. 27

1.5.6 CRC, FEC, and Interleaving .......................................................... 27

1.6 Application Notes ........................................................................................ 29

1.6.1 Transmit Frame Examples ............................................................ 29

1.6.2 Receive Frame Examples ............................................................. 32

1.6.3 Clock Extraction & Level Measurement Systems.......................... 35

1.6.4 AC Coupling .................................................................................. 36

1.6.5 Radio Performance........................................................................ 38

1.7 Performance Specification ......................................................................... 39

1.7.1 Electrical Performance .................................................................. 39

1.7.2 Packaging...................................................................................... 43

Note: As this product is still in development, it is likely that a number of changes and additions will be

made to this specification. Items marked TBD or left blank will be included in later issues.

D/929A/4

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