Versatile dual gain control compander
AS571 Versatile dual gain control
compander |
AS571 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 linearized temperature-compensated variable gain cell, and an
operational amplifier. AS571 is well suited for use in VCA blocks,
noise reduction systems, compandors/expanders ,etc.
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FEATURES
- temperature compensated - channel separation >86 dB
- greater than 110 dB dynamic range - levels adjustable with external
components - distortion may be trimmed out
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