MC33219A Description
Order this document by MC33219A/D MC33219A Voice Switched Speakerphone The Motorola MC33219A 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 mute, transmit and receive attenuators, a background monitoring system for both the...