MX867D2 데이터 시트보기 (PDF) - MX-COM Inc
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MX867D2 Datasheet PDF : 42 Pages
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Low Power V.22 Modem
Section
2
CONTENTS
CMX867 Advance Information
Page
1 Block Diagram................................................................................................................ 3
2 Signal List....................................................................................................................... 4
3 External Components.................................................................................................... 5
3.1 Ring Detector Interface........................................................................................................ 6
3.2 Line Interface....................................................................................................................... 7
3.2.1 2-Wire Line Interface .............................................................................................................. 7
3.2.2 4-Wire Line Interface .............................................................................................................. 8
4 General Description....................................................................................................... 9
4.1 Tx USART ......................................................................................................................... 10
4.2 FSK and DPSK Modulators ............................................................................................... 11
4.3 Tx Filter and Equalizer....................................................................................................... 11
4.4 DTMF/Tone Generator ...................................................................................................... 11
4.5 Tx Level Control and Output Buffer ................................................................................... 11
4.6 Rx DTMF/Tones Detectors ................................................................................................ 11
4.7 Rx Modem Filtering and Demodulation ............................................................................. 13
4.8 Rx Modem Pattern Detectors and Descrambler ................................................................ 14
4.9 Rx Data Register and USART ........................................................................................... 15
4.10 C-BUS Interface ................................................................................................................ 16
4.10.1 General Reset Command (no data) C-BUS address $01 .................................................. 17
4.10.2 General Control Register: 16-bit write-only C-BUS address $E0........................................ 18
4.10.3 Transmit Mode Register: 16-bit write-only C-BUS address $E1 ......................................... 19
4.10.4 Receive Mode Register ........................................................................................................ 23
4.10.5 Tx Data Register .................................................................................................................. 24
4.10.6 Rx Data Register .................................................................................................................. 25
4.10.7 Status Register: 16-bit read-only C-BUS address $E6 ...................................................... 26
4.10.8 Programming Register ......................................................................................................... 29
5 Application Notes ........................................................................................................ 32
5.1 V.22 Calling Modem Application........................................................................................ 32
5.2 V.22 Answering Modem Application .................................................................................. 32
6 Performance Specification.......................................................................................... 33
6.1 Electrical Performance ...................................................................................................... 33
6.1.1 Absolute Maximum Ratings.................................................................................................. 33
6.1.2 Operating Limits ................................................................................................................... 33
6.1.3 Operating Characteristics..................................................................................................... 34
6.2 Packaging.......................................................................................................................... 41
MX-COM, Inc. reserves the right to change specifications at any time and without notice.
2000 MX-COM, Inc.
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 20480219.001
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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