TS7514 datasheet(1/19 Pages) STMICROELECTRONICS

部件名	TS7514

功能描述	PROGRAMMABLE V.23 MODEM WITH DTMF

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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TS7514

PROGRAMMABLE V.23 MODEM WITH DTMF

November 1998

PIN CONNECTIONS

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

24

23

22

21

11

12

AXTL

WLO

ATO

V+

RAO1

RAI1

RAI2

RAO2

RFO

RDI

AGND

V-

MOD/DTMF

MC/BC

RTS

ENP

DGND

TxD

PRD

XTAL IN

XTAL OUT

DCD

RxD

ZCO

DIP24

5

6

7

8

9

10

11

25

24

23

22

21

20

19

V+

AGND

V-

RAO1

RAI1

RAI2

N/C

XTAL OUT

XTAL IN

N/C

PRD

TxD

DGND

ENP

PLCC28

ORDER CODES

Part Number

Temperature Range

Package

TS7514CP

0 to 70

oC

DIP24

TS7514CFN

0 to 70

oC

PLCC28

.

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

DESCRIPTION

The TS7514 is an FSK modem which can be

programmed for asynchronous half-duplex voice-

band communications on a 2-wire line or full duplex

on a 4-wire line. Its programming concept makes it

the ideal component to design low-cost intelligent

modems, featuring auto dialing and auto answer-

ing. The TS7514 conforms to CCITT V.23 recom-

mendation. The chip incorporates DTMF dialing,

line monitoring, tone and dialing detection.

DIP24

(Plastic Package)

PLCC28

(Plastic Leaded Chip Carrier Package)

1/19

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