TEA7533

Features:

· 7 DIGITALLY PROGRAMMABLE GAINS IN STEPS OF 4.5dB
· ON/OFF POSITION
· LOW VOLTAGE (3.5V to 6.5V)
· POWER: >140mW at 5V; >250mW at 6.5V




Pinout






Specifications

Symbol	Parameter	Test Conditions	Unit
VCC	Max. Supply Voltage	7	V
ICC	Max Supply Current at t > 300ms Max Supply Current at t 300ms	100 150	mA mA
VLOGIC	Voltage Level (logic pins)	-0.6/VCC+0.6	V
TOP	Operative Temperature Range	-20 to +70
Tstg	Storage Temperature Range	-55 to +125

Description

This 20 pins IC TEA7533 is designed for monitoring and loudspeaker telephone set and provides:
a) signal amplification for monitoring (loudspeaker).
b) antiacoustic feedback (antilarsen).
c) antidistortion by automatic level adaptation.
d) antilarsen adjustment (full duplex).
e) antidistortion by automatic gain adaptation in current supply mode.
f) service audio inputs with internal dedicated switches.