UTCTEA1062A 查看數據表（PDF） - Unisonic Technologies

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UTCTEA1062A

LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE

Unisonic Technologies 

UTCTEA1062/1062A LINEARINTEGRATEDCIRCUIT

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

Iline=50mA

Output Voltage

sinwave drive;

Ip=0mA;THD=2%

R4=100kΩ

Iline=15mA

RL=150Ω

RL=450Ω

Output Voltage

THD=10%

R4=100kΩ

RL=150Ω

Iline=4mA

Noise Output Voltage

Iline=15mA

R4=100kΩ

IR open-circuit

psophometrically

weighted

RL=300Ω

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=100kΩ

RL=300Ω

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=110kΩ

Gain Control Range

Iline=70mA

Highest Line Current

for Maximum Gain

Minimum Line Current

for Minimum Gain

SYMBOL MIN TYP MAX UNIT

∆Gvf

¡ À0.2

dB

∆GvT

+-0.2

dB

VO(rms) 0.22 0.33

V

VO(rms) 0.3 0.48

V

VO(rms)

15

mV

VNO(rms)

50

¦ ÌV

∆Gv

-11

0

dB

VIH

1.5

VCC

V

VIL

0.3

V

IMUTE

8

15 ¦ ÌA

∆Gv

70

dB

Gv

-19

dB

∆Gv

-5.8

dB

Iline

23

mA

Iline

61

mA

UTC UNISONIC TECHNOLOGIES CO., LTD. 5

QW-R108-001,A

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