PRODUCT NAME

ICF SA571

FUNCTIONAL DESCRIPTION

Compandor

APPLICATIONS

Cellular radio

High level limiter

Low level expandor-noise gate

Dynamic filters

CD Player

GENERAL DESCRIPTION

The ICF 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 ICF 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

BLOCK DIAGRAM

ORDERING INFORMATION