BL34018兼容MC34018通信终端应用电路IC 6~11V 原装贝岭
税前: ¥1.00
1. GENERAL DESCRIPTION
The BL34018 Speakerphone integrated circuit Incorporates the necessary amplifiers,attenuators,and control functions to produce a high quality hands free speakerphone system
.Include 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 and receive levels as well as the background level
.Also included are all necessary regulated voltages for both internal and external circuitry,allowing line-powered operation (no additional power supplies required)
.A chip select pin allows the chip to be powered down when not in use
.A volume control function may be implemented with an external potentiometer.BL34018 applications include speakerphones for household and business use,intercom systems,automotive telephones,and others.
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