NE570

Compandor

Other names for this product: NE 570,

Courtesy/Thanks to: Philips Semiconductor

Description: Discontinued in production
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.

Features

-Complete compressor and expandor in one IC

-Temperature compensated

-Greater than 110 dB dynamic range

-Operates down to 6 VDC

-System levels adjustable with external components

-Distortion may be trimmed out



Applications

-Cellular radio

-Telephone trunk comandor

-High level limiter

-Low level expandor?noise gate

-Dynamic noise reduction systems

-Voltage-controlled amplifier

-Dynamic filtersc