CMX605P3(2001) Просмотр технического описания (PDF) - CML Microsystems Plc

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CMX605P3
(Rev.:2001)

Digital Line to POTS Interface

CML Microsystems Plc 

Digital Line to POTS Interface

Section

CONTENTS

Page

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 Xtal Osc and Clock Dividers................................................... 7

1.5.2 Uncommitted Amplifier........................................................... 7

1.5.3 Tone/FSK Encoder and Tone Encoder .................................. 7

1.5.4 SPM Generator ...................................................................... 10

1.5.5 Transmit Operator................................................................. 10

1.5.6 Tx UART ................................................................................ 10

1.5.7 DTMF Tone Decoder ............................................................. 12

1.5.8 ‘C-BUS’ Interface................................................................... 13

1.5.9 ‘C-BUS’ Registers ................................................................. 14

1.6 Application Notes ........................................................................ 15

1.6.1 Telecom Tones ....................................................................... 15

1.6.2 C-BUS Timing......................................................................... 19

1.7 Performance Specification ....................................................... 22

1.7.1 Electrical Performance.......................................................... 22

1.7.2 Packaging.............................................................................. 26

CMX605

© 2001 Consumer Microcircuits Limited

2

D/605/6

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