TEA7532 - MONITOR AMPLIFIER

Product Overview

ST Microelectronics

Datasheet Details

Part number	TEA7532
Manufacturer	STMicroelectronics
File Size	201.93 KB
Description	MONITOR AMPLIFIER
Datasheet	TEA7532 Datasheet
Additional preview pages of the TEA7532 datasheet.

Product details

Description

This 16 pins IC is designed for monitor (loudspeaker) telephone set and provides : a) Signal amplification for monitoring (loudspeaker) b) Antiacoustic feedback (antilarsen) c) Antidistortion by automatic gain adaptation d) Antilarsen adjustment (full duplex) BLOCK DIAGRAM DIP16 SO16 ORDERING NUMBERS : TEA7532DP (DIP16) TEA7532FP (SO16) July 1993 1/16 TEA7532 PIN CONNECTION (Top view) PIN DESCRIPTION N° 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol ADJ ALADJ ADS VLS MIC1 MIC2 FAL TC1 INP

Features

of each exist in different frequency bands. To extract the larsen component, the microphone signal is first filtered by a second order filter (formed Figure 16. by two first order filters), then amplified and rectified in order to produce the AGC control signal. Zin : 4 kΩ A= V7 V5.
V6 = 15 The first filter is generated by the capacitors on pins 5 and 6 ; the second filter by the R-C network on pin 7. 8/16 TEA7532 Figure 17 : Antilarsen System Filter Response. Filter on pins 5 &.

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Published: Apr 16, 2005 |