UTC34018 PDF 데이터시트 검색

UTC34018 VOICE SWITCHED SPEAKERPHONE CIRCUIT DESCRIPTION LI NEAR I NTEGRATED CI RCUI T The UTC34018 speakerphone integrated circuit incorporates the necessary amplifier, attenuators, and control functions to produce a high quality hands-free speakerphone system. Included are a microphone amplifier, a power audio amplifier for the speaker, transmit and receive attenuators, a monitoring system for background sound level, and an attenuation control system which responds to the relative transmit