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

Microphone inputs MIC+ and MIC- (pins 6 and 7)

Input impedance (differential)

between MIC- and MIC+

Input impedance (sigle-ended)

MIC- or MIC+ to VEE

Common Mode Rejection Ratio

Voltage Gain

MIC+ or MIC- to LN

Iline=15mA

R7=68kΩ

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

Dual-tone multi-frequency input DTMF (pin 11)

Input impedance

Voltage Gain from DTMF to LN

Iline=15mA

R7=68kΩ

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

Iline=50mA

Gain Adjustment GAS1 and GAS2 (pins 2 and 3)

Gain Variation of the Transmitting

Amplifier by Varying R7 between

GAS1 and GAS2

Sending Amplifier Output LN(pin 1)

Output Voltage

Iline=15mA

THD=10%

Iline=4mA

THD=10%

Noise output voltage

Iline=15mA;

R7=68kΩ;

200Ω between

MIC- and MIC+;

psophometrically

weighted

Receiving Amplifier Input IR (pin 10)

Input impedance

Receiving Amplifier Output QR (pin 4)

Output Impedance

Voltage gain from IR to QR

Iline=15mA;

RL(from pin 9 to

pin 4 )=300Ω

SYMBOL MIN TYP MAX UNIT

£ üZi£ ü

64

kΩ

£ üZi£ ü

32

kΩ

kCMR

82

dB

Gv

∆Gvf

50.5 52.0 53.5 dB

+-0.2

dB

∆GvT

+-0.2

dB

£ üZi£ ü

20.7

kΩ

Gv

24 25.5 27 dB

∆Gvf

+-0.2

dB

∆GvT

+-0.2

dB

∆Gv

-8

0

dB

VLN(rms) 1.7 2.3

V

VLN(rms)

0.8

V

VNO(rms)

-69

£ üZi£ ü

21

£ üZo£ ü

4

dBmp

kΩ

Ω

Gv

29.5 31 32.5 dB

UTC UNISONIC TECHNOLOGIES CO., LTD. 4

QW-R108-001,A

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