CMX625 参数 Datasheet PDF下载

ISDN TA POTS Interface

CMX625

CONTENTS

Section

1.1

1.2

1.3

1.4

1.5

Page

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

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

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

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

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

1.5.1 IOM™-2 Serial Bus Interface ..................................................... 7

1.5.2 Terminal Mode (TE).................................................................... 8

1.5.3 Non-Terminal Mode (non-TE) ................................................. 10

1.5.4 Monitor Channel Handshake Protocol................................... 11

1.5.5 Monitor Channel Identification Command ............................ 13

1.5.6 PCM Codec-Filter ..................................................................... 13

1.5.7 Rx Input Amplifier .................................................................... 14

1.5.8 Tx Output Buffer ...................................................................... 14

1.5.9 Tone/FSK Encoder and Tone Encoder .................................. 14

1.5.10 SPM Generator ......................................................................... 17

1.5.11 Transmit Signal Control .......................................................... 17

1.5.12 Tx UART .................................................................................... 18

1.5.13 DTMF Tone Decoder ................................................................ 19

1.5.14 Register Set .............................................................................. 20

1.5.15 Programming the CMX625 ...................................................... 20

1.5.16 Glossary.................................................................................... 22

Application Notes.................................................................................. 23

1.6.1 Telecom Tones ......................................................................... 23

Performance Specification................................................................... 27

1.7.1 Electrical Performance ............................................................ 27

1.7.2 Packaging ................................................................................. 33

1.6

1.7

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2001 Consumer Microcircuits Limited

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D/625/2