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TS7514

STMicroelectronics
Part Number TS7514
Manufacturer STMicroelectronics
Description PROGRAMMABLE V.23 MODEM WITH DTMF
Published Apr 16, 2005
Detailed Description TS7514 PROGRAMMABLE V.23 MODEM WITH DTMF . . . . . . . . . . PROGRAMMABLE MODES : - Modem 75bps transmit, 1200bps rece...
Datasheet PDF File TS7514 PDF File

TS7514
TS7514

Overview
TS7514 PROGRAMMABLE V.
23 MODEM WITH DTMF .
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PROGRAMMABLE MODES : - Modem 75bps transmit, 1200bps receive - Modem 1200bps transmit, 75bps receive - DTMF dialing - Call status tone detection - Auxiliary analog transmit input - Analog test loopback PROGRAMMABLE FUNCTIONS : - Transmission level - Hysteresis and detection level - Filters (reception and transmission) - Line monitoring and buzzer - DTMF frequencies FIXED COMPROMISE LINE EQUALIZER AUTOMATIC BIAS ADJUSTMENT INTEGRATED DUPLEXER STANDARD LOW COST CRYSTAL (3.
579MHz) TAX TONE REJECTION POWER-UP INITIALIZATION OF REGISTERS OPERATES FROM ±5V CMOS DIP24 (Plastic Package) PLCC28 (Plastic Leaded Chip Carrier Package) on a 4-wire line.
Its programming concept makes it the ideal component to design low-cost intelligent modems, featuring auto dialing and auto answering.
The TS7514 conforms to CCITT V.
23 recommendation.
The chip incorporates DTMF dialing, line monitoring, tone and dialing detection.
ORDER CODES TS7514CP TS7514CFN 0 to 70 C 0 to 70oC o DESCRIPTION The TS7514 is an FSK modem which can be programmed for asynchronous half-duplex voiceband communications on a 2-wireline or full duplex PIN CONNECTIONS DIP24 MOD/DTMF MC/BC RTS ENP DGND TxD PRD XTAL IN XTAL OUT DCD RxD ZCO 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 AXTL DIP24 PLCC28 PLCC28 MOD/DTMF MC/BC ATXL WLO ATO RTS WLO ATO N/C 28 27 V+ ENP 5 6 7 8 9 10 11 12 13 14 15 16 17 18 25 24 23 22 21 20 19 V+ AGND VRAO1 RAI1 RAI2 N/C 7514-01.
EPS / 7514-02.
EPS AGND VRAO1 RAI1 RAI2 RAO2 RFO DGND TxD PRD N/C XTAL IN XTAL OUT N/C ZCO RDI DCD RFO RxD RDI RAO2 26 4 3 2 1 November 1998 1/19 7514-01.
TBL Part Number Temperature Range Package TS7514 PIN DESCRIPTION Name MOD/DMTF Pin Number DIP24 1 PLCC28 1 MODEM or DMTF Operating Mode Selection.
Also controls write operations to control registers (if MOD/DMTF = 0 and MC/BC = 0).
Digital Control Input.
In MODEM mode, it sets transmission mode to main or ba...


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