MC34118 Datasheet (Motorola) - VOICE SWITCHED SPEAKERPHONE

MC34118, VOICE SWITCHED SPEAKERPHONE

MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC34118/D ARCHIVED - 6/2010 Voice Switched Speakerphone Circuit Silicon Monolithic Integrated Circuit The MC34118 Voice Switched Speakerphone Circuit incorporates the necessary amplifiers, attenuators, level detectors, and control algorithm to form the heart of a high quality hands free speakerphone system.

Included are a microphone amplifier with adjustable gain and MUTE control, Transmit and Receive attenuators which operat

MC34118 Features

* of a featurephone.

* Improved Attenuator Gain Range: 52 dB Between Transmit and Receive

* Low Voltage Operation for Line

* Powered Applications (3.0

* 6.5 V)

* 4

* Point Signal Sensing for Improved Sensitivity

* Background Noise Monitors for Both T