U4050B - TEMIC Semiconductors

U4050B Speech Circuit

The electronic speech circuit U4050B is a linear integrated circuit for use in telephone sets. It replaces the hybrid transformer, sidetone equivalent and ear protection rectifiers. The circuit is line powered and contains all components necessary for amplification of signals and adaptation to the line. An integrated loudspeaker amplifier allows loudhearing .

Features

www.DataSheet4U.com D Integrated amplifier for loudhearing operation D Anticlipping for loudspeaker amplifier D Supply voltages for all functional blocks of a subscriber set D Adjustable DC characteristics D Adjustable sending and receiving amplification D Automatic line loss compensation D Symmetrical output of earpiece amplifier D Built-in ear protection D Symmetrical input of microphone amplifier D Adjustable sidetone suppression independent of sending and receiving amplification D DTMF and MUTE inputs D Anticlipping in transmit direction D Squelch D Integrated transistor for short circui.