TEA1062 View Datasheet(PDF) - Contek Microelectronics

Part Name

Description

Manufacturer

TEA1062

LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE

Contek Microelectronics 

TEA1062/1062A LINEARINTEGRATED CIRCUIT

LOW VOLTAGE TELEPHONE

TRANSMISSION CIRCUIT WITH

DIALLER INTERFACE

DESCRIPTION

The Contek TEA1062/1062A is a bipolar integrated

circuit performing all speech and line interface

function, required in the fully electronic

telephone sets. It performs electronic switching

between dialing speech. The circuit is able to

operate down to D.C. line voltage of 1.6V (with

reduced performance) to facilitate the use of more

telephone sets in parallel.

FEATURES

* Low d.c. line voltage; operates down to 1.6V

( excluding polarity guard).

*Voltage regulator with adjustment static resistance.

*Provides supply with limited current for external

circuitry.

*Symmetrical high-impedance inputs (64kW)for

dynamic, magnetic or piezoelectric microphones.

*Asymmetrical high-impedance inputs (32kW)for

electret microphones.

*DTMF signal input with confidence tone.

QUICK REFERENCE DATA

Line voltage at I line=15mA

Line current operating range[pin1]

normal operation

with reduced performance

Internal supply current

Supply current for peripherials

at I line=15 mA MUTE input LOW(1062 is HIGH)

VCC>2.2V

VCC>2.8V

Voltage amplification range

microphone amplifier

receiving amplififer

Line loss compansation

Amplification control range

Exchange supply voltage range

Exchange feeding bridge resistance range

Operating ambient temperature range

SOP-16

DIP-16

*Mute input for pulse or DTMF dialing.

*Receivering amplifier for several types of earphones.

*Large amplification setting range on microphone

and earpiece amplifiers.

*Line loss compensation facility , line current

depedant (microphone and earpiece amplifiers).

*Gain control adaptable to exchange supply.

*Possibility to adjust the d.c. line voltage.

VLN

Iline

Iline

ICC

Ip

Ip

AVD

AVD

AVD

Vexch

Rexch

Tamb

typ. 3.8 V

11 to 140 mA

1 to 11 mA

typ. 1mA

typ. 1.8mA

typ. 0.7mA

44 to 52 dB

20 to 39 dB

typ. 6 dB

36 to 60V

400 to 1000

-25 to +75 C

Contek Microelectronics Co.,Ltd.

1

CONTEK

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

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