Datasheet ON Semiconductor NE570

NE570
Compandor
The NE570 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 NE570 is well suited for use in cellular radio and radio
communications systems, modems, telephone, and satellite
broadcast/receive audio systems. http://onsemi.com
MARKING
DIAGRAM Features •
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• 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 …