TEA1113/C1 Просмотр технического описания (PDF) - Philips Electronics

Номер в каталоге

Компоненты Описание

производитель

TEA1113/C1

Low voltage versatile telephone transmission circuit with dialler interface

Philips Electronics 

Philips Semiconductors

Low voltage versatile telephone

transmission circuit with dialler interface

Product specification

TEA1113

The preferred value for RSLPE is 20 Ω. Changing RSLPE will affect more than the DC characteristics; it also influences the

microphone and DTMF gains, the LED supply current characteristic, the gain control characteristics, the sidetone level

and the maximum output swing on the line.

handbook, full pagewidthRline

Iline

ILED

LN

Rexch

Vexch

TEA1113

ILED

Ish

LED

DRIVER

ISLPE

SLPE

RSLPE

20 Ω

RCC

619 Ω

from preamp

I*

VCC

ICC

REG

CREG

4.7 µF

VEE

Fig.3 Supply configuration.

Ip

CVCC

100 µF

peripheral

circuits

MBG019

5.5

handbook, halfpage

Vref

(V)

4.5

(1)

(2)

3.5

(3)

MGD188

2.5

104

105

106 RVA (Ω) 107

(1) RVA between REG and SLPE.

(2) No RVA.

(3) RVA between REG and LN.

Fig.4 Reference voltage adjustment by a RVA resistor.

1997 Mar 27

5

Share Link: