CMX641A Ver la hoja de datos (PDF) - MX-COM Inc

Número de pieza

componentes Descripción

Lista de partido

CMX641A

Dual SPM/Security Detector/Generator

MX-COM Inc  

Dual SPM/Security Detector/Generator

Section

2 of 23

CONTENTS

CMX641A Advance Information

Page

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

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

3. External Components ................................................................................................... 7

4. General Description ...................................................................................................... 8

4.1 Description of Blocks ......................................................................................................... 8

4.1.1 Crystal Oscillator and Clock Dividers...................................................................................... 8

4.1.2 Input Operational Amplifiers.................................................................................................... 8

4.1.3 SPM Tone Bandpass Filter ..................................................................................................... 8

4.1.4 Level Detection and Pulse Generator Circuits ........................................................................ 8

4.1.5 Period Measurement Logic ..................................................................................................... 8

4.1.6 Tone Length Logic .................................................................................................................. 8

4.1.7 Tx Tone Generator and Shaping Filter ................................................................................... 8

4.1.8 Output Select Circuits ............................................................................................................. 9

4.2 Operating States................................................................................................................ 9

4.2.1 Fixed Bandwidth Operating State (ENHANCED FEATURES pin = logic ‘0’ or open circuit) .. 9

4.2.2 Enhanced Features Operating State (ENHANCED FEATURES pin = logic ‘1’)................... 11

4.2.3 Features Common to both Operating States ........................................................................ 13

5. Application Notes........................................................................................................ 14

5.1 Signal Input Configurations.............................................................................................. 14

5.2 Crystal/Clock Distribution................................................................................................. 14

5.3 Channel 1 and Channel 2 Output Format ........................................................................ 15

5.4 Setting Level Sensitivity via the Input Serial Data Word................................................... 15

5.4.1 Setting Level Sensitivity via External Components ............................................................... 16

6. Performance Specification......................................................................................... 18

6.1 Electrical Performance..................................................................................................... 18

6.1.1 Absolute Maximum Ratings .................................................................................................. 18

6.1.2 Operating Limits.................................................................................................................... 18

6.1.3 Operating Characteristics ..................................................................................................... 19

6.1.4 Timing ................................................................................................................................... 22

6.2 Packaging........................................................................................................................ 23

Note: This product is in development: Changes and additions will be made to this specification. Items marked

TBD or left blank will be included in later issues.

MX-COM, Inc. reserves the right to change specifications at any time and without notice.

ã2001 MX-COM, Inc.

www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054

Doc. # 20480227.002

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.

Share Link: