CMX605 데이터 시트보기 (PDF) - MX-COM Inc
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CMX605 Datasheet PDF : 26 Pages
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Digital Line to POTS Interface
Page 2 of 26
CMX605 Preliminary Information
Section
CONTENTS
Page
1 Block Diagram ............................................................................................................... 3
2 Signal List ...................................................................................................................... 4
3 External Components ................................................................................................... 5
4 General Description ...................................................................................................... 5
4.1 Xtal Osc and Clock Dividers .............................................................................................. 5
4.2 Uncommitted Amplifier....................................................................................................... 5
4.3 Tone/FSK Encoder and Tone Encoder .............................................................................. 6
4.4 SPM Generator.................................................................................................................. 8
4.5 Tx Signal Control ............................................................................................................... 8
4.6 Tx UART.......................................................................................................................... 10
4.6.1 Tx UART Timings ................................................................................................................. 10
4.7 DTMF Tone Decoder ....................................................................................................... 11
4.8 ‘C-BUS’ Interface ............................................................................................................. 12
4.9 ‘C-BUS’ Registers............................................................................................................ 13
4.10 C-BUS Timings ................................................................................................................ 14
5 Application................................................................................................................... 17
5.1 Telecom Tones ................................................................................................................ 17
6 Performance Specification......................................................................................... 21
6.1 Electrical Performance..................................................................................................... 21
6.1.1 Absolute Maximum Ratings .................................................................................................. 21
6.1.2 Operating Limits.................................................................................................................... 21
6.1.3 Operating Characteristics ..................................................................................................... 22
6.1.4 Timing ................................................................................................................................... 25
6.2 Packaging........................................................................................................................ 26
MX-COM, Inc reserves the right to change specifications at any time and without notice.
¤2001 MX-COM, Inc.
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 20480195.005
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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