TEA7532 Datasheet - ST Microelectronics

TEA7532 MONITOR AMPLIFIER

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 NUM.

TEA7532 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

TEA7532_STMicroelectronics.pdf