TEA1093 Ver la hoja de datos (PDF) - Philips Electronics

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TEA1093

Hands-free IC

Philips Electronics 

Philips Semiconductors

Hands-free IC

Product specification

TEA1093

handbook, full pagewidth

INPUT SIGNAL

4 mV (RMS)

1 mV (RMS)

MBG354

SIGNAL ENVELOPE

A

36 mV

B

A: 85 dB/ms

B: 0.7 dB/ms

A

B

NOISE ENVELOPE

C

B: 0.7 dB/ms

C: 0.07 dB/ms

36 mV

B

C

B

time

Fig.9 Signal and noise envelope waveforms.

g

27

(23) TENV

TNOI

26

(22)

13 mV

ATTENUATOR

24

(20) RENV

RNOI

23

(19)

13 mV

19

Vdt

(15) MUTET

from dynamic

limiter

(1) When MUTET = HIGH, +10 µA is forced.

When DLC/MUTER < 0.2 V, −10 µA is forced.

DUPLEX CONTROLLER

LOGIC(1)

16

IDT (12)

Vref

RIDT

14

SWT (11)

X X 1 1 − 10 µA

X 1 0 X + 10 µA

1 X 0 X + 10 µA

XX1 0

0

0 00X

0

CSWT

Fig.10 Decision logic.

MGD224

1996 Feb 09

11

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