TS7514 查看數據表（PDF） - STMicroelectronics

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TS7514

PROGRAMMABLE V.23 MODEM WITH DTMF

STMicroelectronics 

TS7514

DC AND OPERATING CHARACTERISTICS (continued)

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

ANALOG INTERFACE - LINE MONITORING (WLO (load conditions , RL = 10kΩ, CL = 50pF)

VOS Output Offset Voltage

CL

Load Capacitance

RL

Load Resistance

Vout Output Voltage Swing

Rout Output Resistance

–

WLO Attenuation Ratio

– 250 – + 250 mV

–

–

100 pF

10

–

–

kΩ

– 1.8 – + 1.8 V

–

–

15 Ω

70

–

–

dB

ANALOG INTERFACE - DUPLEXER (RAI+, RAI-, RA0)

Vin

lin

Cin

Vo ff

Vout

CL

RL

G

CMRR

Input Voltage Range RAI+, RAI–

Input Current RAI+, RAI–

Input Capacitance RAI+, RAI–

Input Offset Voltage RAI+, RAI–

Output voltage Swing, RA0

Load Capacitance RA01

Load Resistance RA01

DC voltage Gain in Large Signals, RA01

Common Mode Rejection Ratio, RA01, RA02

CL = 100pF

RL = 300 Ω

CL = 100pF

CL = 100pF, RL = 300Ω

PSRR Supply Voltage Rejection Ratio, RA01, RA02

Vout Output Voltage Swing, RA02

CL

Load Capacitance, RA02

RL

Load Resistance, RA02

AVO DC Voltage Gain in Large Signals, RA02

CL = 50pF, RL = 10kΩ

ANALOG INTERFACE-RECEIVE FILTER OUTPUT (RFO)

Amplifier Limiter Input (RDI)

–2

–

+2

V

–10

–

+10 µA

–

–

10 pF

–20

–

+20 mV

–1.8 RL =–600Ω+1.8 V

–0.9 – +0.9 V

–

–

100 pF

300

–

–

Ω

60

–

–

dB

60

–

–

dB

60

–

–

dB

–2.5 –

2.5 pF

–

–

50 pF

10

–

–

kΩ

–

–

dB

Vin Input Voltage Range (RPRF = 1 xxx)

– 2.2 –

Rin Input Resistance (RPRF = 1 xxx)

1.5

–

Cin Input Capacitance (RPRF = 1 xxx)

–

–

CL

Load Capacitance (RPRF = 1 xxx)

–

–

RL

Load Resistance

Vout Output Voltage Swing

1.5

–

CL = 50pF, RL = 1.5kΩ – 1.8 –

Rout Output Resistance

–

–

DYNAMIC CHARACTERISTICS FOR PROGRAMMING REGISTER ACCESS (see Figures 5 and 6)

+ 2.2 V

–

kΩ

20 pF

50 pF

–

kΩ

+ 1.8 V

15 Ω

tCYC (1)

Pwel (2)

PWeh (3)

tr, tf (4)

tHCE (5)

tSCE (6)

tSDI (7)

tHDI (8)

tWW (9)

tBD (10)

tHD (11)

Cycle Time

Pulse Width, RTS Low

Pulse Width, RTS High

RTS Rise and Fall Times

Control Input Holding Time

Control Input Setup Time

TxD or PRD Input Setup Time

TxD or PRD Input Hold Time

TWW Input Writing Inpulsion Width (high level)

TxD Input Setup Time

TxD Input Hold Time

600

–

300

–

300

–

–

–

100

–

300

–

200

–

100

–

300

–

100

–

100

–

–

ns

–

ns

–

ns

50 ns

–

ns

–

ns

–

ns

–

ns

–

ns

–

ns

–

ns

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