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TS7514CFN Datasheet

  • TS7514CFN

  • PROGRAMMABLE V.23 MODEM WITH DTMF

  • 19頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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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 COMPROMISE LINE EQUALIZER
AUTOMATIC BIAS ADJUSTMENT
INTEGRATED DUPLEXER
STANDARD LOW COST CRYSTAL (3.579MHz)
TAX TONE REJECTION
POWER-UP INITIALIZATION OF REGISTERS
OPERATES FROM
鹵
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 answer-
ing. The TS7514 conforms to CCITT V.23 recom-
mendation. The chip incorporates DTMF dialing,
line monitoring, tone and dialing detection.
ORDER CODES
TS7514CP
TS7514CFN
0 to 70 C
0 to 70
o
C
o
DESCRIPTION
The TS7514 is an FSK modem which can be
programmed for asynchronous half-duplex voice-
band 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
V-
RAO1
RAI1
RAI2
N/C
7514-01.EPS / 7514-02.EPS
AGND
V-
RAO1
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

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