The SA571 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.

Features

? Complete Compressor and Expandor in one IChip

? 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

? Pb?Free Packages are Available*

Applications

? Cellular Radio

? High Level Limiter

? Low Level Expandor ? Noise Gate

? Dynamic Filters

? CD Player

SA571D屬于集成電路（IC） > 音頻專(zhuān)用。安森美半導(dǎo)體公司制造生產(chǎn)的SA571D音頻專(zhuān)用音頻專(zhuān)用的半導(dǎo)體器件專(zhuān)為音頻信號(hào)的濾波、驅(qū)動(dòng)、放大、轉(zhuǎn)換和接口而設(shè)計(jì)。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(chē)音頻、消費(fèi)類(lèi)音頻、樂(lè)器、專(zhuān)業(yè)音頻、通信系統(tǒng)、電信系統(tǒng)、數(shù)字音頻、驅(qū)動(dòng)器、前置放大器、信號(hào)混合、信號(hào)處理、語(yǔ)音觸發(fā)器解決方案和 10 Base-T。