SA571DR2
数据手册.pdf扩 Compandor
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.
Features
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- Complete Compressor and Expandor in one IC
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- Temperature Compensated
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- Greater than 110 dB Dynamic Range
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- Operates Down to 6.0 VDC
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- System Levels Adjustable with External Components
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- Distortion may be Trimmed Out
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- Dynamic Noise Reduction Systems
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- Voltage−controlled Amplifier
