TEA1099H 데이터 시트보기 (PDF) - Philips Electronics

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TEA1099H

Speech and handsfree IC with auxiliary inputs/outputs and analog multiplexer

Philips Electronics 

Philips Semiconductors

Speech and handsfree IC with auxiliary

inputs/outputs and analog multiplexer

Product specification

TEA1099H

handbook, full pagewidth

(1) C = constant.

DUPLEX CONTROLLER

to

microphone

amplifier

from

SWT

Gvtx + Gvrx = C(1)

VOICE SWITCH

STAB 21 RSTAB

SWR 22 RSWR

from

volume

control

to

loudspeaker

amplifier

MGM304

Fig.12 Voice switch.

1999 Apr 08

handbook, halfpage

Tx mode

Gvtx, Gvrx

(10 dB/div)

Gvtx

−400

Gvrx

−200

idle

mode

MGM305

Rx mode

RVOL

(Ω)

11400

7600

3800

0

0

3800

7600

11400

0

+200

+400

VSWT − VIDT (mV)

Fig.13 Switch-over behaviour.

18

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