FEATURES
Complete microphone conditioner in a 10-lead package Single 3 V operation Low shutdown current < 2 µA Adjustable noise gate threshold Adjustable compression ratio Automatic limiting feature prevents ADC overload Low noise and distortion: 0.2% THD + N 20 kHz bandwidth APPLICATIONS
Desktop, portable, or palmtop computers Telephone conferencing Communication headsets Two-way communications Surveillance systems Karaoke and DJ mixers GENERAL DESCRIPTION
A low noise voltage controlled amplifier (VCA) provides a gain that is dynamically adjusted by a control loop to maintain a set compression characteristic.