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PDF TS7514 Data sheet ( Hoja de datos )
| Número de pieza | TS7514 | |
| Descripción | PROGRAMMABLE V.23 MODEM WITH DTMF | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TS7514 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
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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 ±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.
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
ORDER CODES
Part Number
TS7514CP
TS7514CFN
Temperature Range
0 to 70oC
0 to 70oC
Package
DIP24
PLCC28
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 AXTL
23 WLO
22 ATO
21 V+
20 AGND
19 V-
18 RAO1
17 RAI1
16 RAI2
15 RAO2
14 RFO
13 RDI
PLCC28
ENP
DGND
TxD
PRD
N/C
XTAL IN
XTAL OUT
5
6
7
8
9
10
11
25 V+
24 AGND
23 V-
22 RAO1
21 RAI1
20 RAI2
19 N/C
November 1998
1/19
1 page  
Figure 3 : Detailed Block Diagram
TS7514
5/19
5 Page 
TS7514
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
DGND DGND (digital ground) to AGND (analog ground)
– 0.3, + 0.3
V
V+ Supply Voltage V+ to DGND ro AGND
– 0.3, + 7
V
V– Supply Voltage V- to DGND or AGND
– 7, + 0.3
V
VI Voltage at any Digital Input
DGND - 0.3, V+ + 0.3
V
Vin
Io
Iout
Ptot
Top
Tstg
Tlead
Voltage at any Analog Input
Current at any Digital Output
Current at any Analog Output
Power Dissipation
Operating Temperature
Storage Temperature
Lead Temperature (soldering, 10s)
V– 0.3, V + + 0.3
– 20, + 20
– 10, + 10
500
0, + 70
– 65, + 150
+ 260
V
mA
mA
mW
°C
°C
°C
If the Maximum Ratings are exceeded, permanent damage may be caused to the device. This is a stress rating only, and functional operation
of the device under these or any other conditions for extended periods may affectdevice reliability. Standard CMOS handling procedures should
be employed to avoid possible damage to the device.
ELECTRIC OPERATING CHARACTERISTICS
Symbol
V+
V–
I+
I-
Positive Supply Voltage
Negative Supply Voltage
V+ Operating Current
V- Operating Current
Parameter
Min.
4.75
– 5.25
–
– 15
Typ.
5
– 5.0
10
– 10
Max.
5.25
– 4.75
15
–
Unit
V
V
mA
mA
DC AND OPERATING CHARACTERISTICS
Electrical characteristics are guaranteed over the complete temperature range, with typical load unless
otherwise specified. Typical values are given for : V+ = +5V, V− = -5V and room temperature = 25oC
Symbol
Parameter
Test Conditions
Min. Typ. Max. Unit
DIGITAL INTERFACE (MOD/DTMF, RTS, DCD, RxD, ZCO, TxD, MC/BC, ENP, PRD)
VI L Input Voltage, Low Level
VI H Input Voltage, High Level
II L Input Current, Low Level
II H Input Current, High Level
IOL Output Current, Low Level
IOH Output Current, High Level
ANALOG INTERFACE-PROGRAMMABLE (ATxl)
– – 0.8 V
– 2.2
–
–
–
DGND < Vi < VIL (max) – 10
VIH (min) < VI < V+
– 10
–
–
10 µA
10 µA
VOL = 0.4V
1.6 –
– mA
VOH = 2.8V
– – – 250 µA
Vin Input Voltage Range
Iin Input Current (filter output selected)
Cin Input Capacitance (ATT output selected)
Rin Input Resistance (ATT output selected)
– 1.8
– 10
–
100
–
–
–
–
ANALOG INTERFACE - TRANSMIT OUTPUT (ATO) (load conditions RL = 560Ω, CL = 100pF)
VOS Output Offset Voltage
CL Load Capacitance
RL Load Resistance
Vout Output Voltage Swing
Rout Output Resistance
– ATO Attenuation Ratio when RTS = 1
– 250
–
–
– 1.8
10
70
–
–
560
–
–
–
+ 1.8
+ 10
20
–
+ 250
100
–
+ 1.8
25
–
V
µA
pF
kΩ
mV
pF
Ω
V
Ω
dB
11/19
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet TS7514.PDF ] | |
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