TEA1062A 查看數據表（PDF） - Contek Microelectronics

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TEA1062A

LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE

Contek Microelectronics 

TEA1062/1062A LINEARINTEGRATED CIRCUIT

ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

TEST CONDITIONS

Gain Variation with Frequency

at f=300Hz and f=3400Hz

w.r.t.800Hz

Gain Variation with Temperature

at-25 C and +75 C

w.r.t.25 C

without R6

I line=50mA

Output Voltage

sinwave drive;

Ip=0mA;THD=2%

R4=100k W

I line=15mA

R L=150W

R L=450W

Output Voltage

THD=10%

R4=100k W

R L=150W

I line=4mA

Noise Output Voltage

I line=15mA

R4=100k W

IR open-circuit

psophometrically

weighted

RL=300 W

Gain adjustment GAR (pin 5)

Gain Variation of Receiving

Amplifier Achievable by

Varying

R4 between GAR and QR

Mute Input (pin 12)

Input Voltage(HIGH)

Input Voltage(LOW)

Input Current

Reduction of Gain

MIC+ or MIC- to QR

MUTE=LOW

Voltage Gain from DTMF to QR

MUTE=LOW

R4=100k W

RL=300 W

Automatic Gain Control Input AGC ( pin 15)

Controlling the Gain from lR to QR

and the Gain from MIC+/MIC-

to LN;R6 between AGC and VEE R6=110k W

Gain Control Range

I line=70mA

Highest Line Current

for Maximum Gain

Minimum Line Current

for Minimum Gain

SYMBOL MIN TYP MAX UNIT

DGvf

0.2

dB

DGvT

+-0.2

dB

VO(rms) 0.22 0.33

V

VO(rms) 0.3 0.48

V

VO(rms)

15

mV

VNO(rms)

50

V

DGv

-11

0

dB

VIH

1.5

VCC

V

VIL

0.3

V

IMUTE

8

15

A

DGv

70

dB

Gv

-19

dB

DGv

-5.8

dB

Iline

23

mA

Iline

61

mA

Contek Microelectronics Co.,Ltd.

5

CONTEK

http://www.contek-ic.com E-mail:sales@contek-ic.com

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