Functions
• Compressor (VCA circuit, full-wave rectifying circuit, adder amplifier).
• Expandor (VCA circuit, full-wave rectifying circuit, adder amplifier).
• Operational amplifier (in the compressor).
• Operational amplifier with muting function (in the expandor).
• Analog switch for data signal input (in the compressor).
• Regulator.

APPLICATIONs
• Cordless telephone.
• FM transceiver.