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The OnSemi SA571D is a versatile low cost dual gain control
circuit in which either channel may be used as a dynamic
range compressor or expander. 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 SA571D is well suited for use in cellular radio and
radio communications systems and audio systems.
Features:
