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TS7514CFN Datasheet Programmable V.23 Modem

Manufacturer: STMicroelectronics

Overview: TS7514 PROGRAMMABLE V.23 MODEM WITH DTMF . 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 PROMISE 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 ponent to design low-cost intelligent modems, featuring auto dialing and auto answering. The TS7514 conforms to CCITT V.23 remendation. The chip incorporates DTMF dialing, line monitoring, tone and dialing detection.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The TS7514 is an FSK modem which can be programmed for asynchronous half-duplex voiceband munications on a 2-wireline or full duplex ORDER CODES Part Number TS7514CP TS7514CFN Temperature Range 0 to 70oC 0 to 70oC Package DIP24 PLCC28 PIN CONNECTIONS DIP24 MOD/DTMF 1 MC/BC 2 RTS 3 ENP 4 DGND 5 TxD 6 PRD 7 XTAL IN 8 XTAL OUT 9 DCD 10 RxD 11 ZCO 12 24 AXTL 23 WLO 22 ATO 21 V+ 20 AGND 19 V- 18 RAO1 17 RAI1 16 RAI2 15 RAO2 14 RFO 13 RDI PLCC28 4 RTS 3 MC/BC 2 N/C 1 MOD/DTMF 28 ATXL 27 WLO 26 ATO ENP 5 DGND 6 TxD 7 PRD 8 N/C 9 XTAL IN 10 XTAL OUT 11 25 V+ 24 AGND 23 V22 RAO1 21 RAI1 20 RAI2 19 N/C 7514-01.TBL 7514-01.EPS / 7514-02.EPS N/C 12 DCD 13 RxD 14 ZCO 15 RDI 16 RFO 17 RAO2 18 November 1998 1/19 TS7514 PIN DESCRIPTION Name MOD/DMTF MC/BC RTS ENP DGND TxD PRD XtaIIN XtaIOUT DCD RxD ZCO RDI RFO RAO2 RAI2 RAI1 RAO1 VAGND V+ ATO WLO ATxI Pin Number DIP24 PLCC28 1 1 2 3 3 4 4 5 5 6 6 7 7 8 8 10 9 11 10 13 11 14

Key Features

  • DTMF dialing, call status tone detection and line monitoring in both dialing and automaticanswer modes. A signalling frequency is available at the line monitoring output (buzzer). Ring detection is possible by using the signal detection function and bypassing the receive filter. The receive signal at ZCO output can be filtered in the associated microprocessor. The.

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TS7514CFN Distributor