描述 Description

The SA571 Compandor is a versatile low cost dual gain control circuit in which either channel may be used as a dynamic range compressor or expandor. Each channel has a full-wave rectifier to detect the average value of the signal, a linerarized temperature-compensated variable gain cell, and an operational amplifier. The SA571 is well suited for use in cellular radio and radio communications systems, modems, telephone, and satellite broadcast/receive audio systems.

特性 Features

? Complete Compressor and Expandor in one IC
? Temperature Compensated
? Greater than 110 dB Dynamic Range
? Operates Down to 6.0 VDC
? System Levels Adjustable with External Components
? Distortion may be Trimmed Out
? Dynamic Noise Reduction Systems
? Voltage?controlled Amplifier

應(yīng)用 Application

? High Level Limiter
? Low Level Expandor − Noise Gate
? Dynamic Filters
? Audio Amplifier
? Satellite Radio

簡介

SA571屬于集成電路（IC）的音頻專用。由制造生產(chǎn)的SA571音頻專用音頻專用的半導(dǎo)體器件專為音頻信號的濾波、驅(qū)動、放大、轉(zhuǎn)換和接口而設(shè)計。特征包括功能、應(yīng)用、通道數(shù)、接口、電壓和規(guī)格。應(yīng)用包括音頻系統(tǒng)、汽車音頻、消費類音頻、樂器、專業(yè)音頻、通信系統(tǒng)、電信系統(tǒng)、數(shù)字音頻、驅(qū)動器、前置放大器、信號混合、信號處理、語音觸發(fā)器解決方案和 10 Base-T。