TEA1110AL-S14-R datasheet(4/9 Pages) UTC

4 / 9 page

TEA1110A

LINEAR INTEGRATED CIRCUIT

UNISONICTECHNOLOGIESCO.,LTD

4 of 9

www.unisonic.com.tw

QW-R108-014.C

ELECTRIC CHARACTERISTICS(Cont.)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX UNIT

Receiving amplifier (pins IR, QR and GAR)

Voltage gain from IR to QR

GVRX

VIR = 4mV (RMS)

Gain variation with frequency referred to

1kHz

GVRX(F) f = 300~3400 Hz

±0.2

Gain variation with temperature referred

to 25°C

GVRX(T) Ta = -25 ~ +75 °C

±0.3

Gain voltage reduction range

GVRXR

external resistor connected between

GAR and QR

IP =0mA sine wave drive

RL = 50Ω, THD =2%

0.25

Maximum receiving signal

(RMS value)

VO(rms)

IP = 0mA sine wave drive

RL =450 Ω, THD =2%

0.35

Noise output voltage at pin R

(RMS value)

VNORX(rms)

GVRX =33dB, IR open-circuit,

RL =150Ω

-87

dBVp

Automatic gain control (pin AGC)

Gain control range for microphone and

receiving amplifiers with respect to

ILINE=15mA

GVTRX

ILINE = 85mA

5.9

Highest line current for maximum gain

ISTART

Lowest line current for minimum gain

ISTOP

DTMF amplifier (pin DTMF)

Voltage gain from DTMF to LN

GVDTMF

VDTMF = 20mV (RMS)

MUTE = LOW

24.1 25.3 26.5

Gain variation with frequency referred to

1kHz

GVDTMF(F) f = 300~3400Hz

±0.2

Gain variation with temperature referred

to25°C

GVDTMF(T) Ta = -25 ~ +75 °C

±0.4

Voltage gain from DTMF to QR

(confidence tone)

GVCT

VDTMF = 20mV (RMS)

RL = 150 Ω

-15

Mute function (pin MUTE)

LOW level input voltage

VIL

VEE

-0.4

VEE

+0.3

HIGH level input voltage

VIH

VEE

+1.5

VCC

+0.4

Input current

MUTE

1.5

μA

Gain reduction for microphone and

receiving amplifiers

GVTRXM MUTE = LOW

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