GENERAL DESCRIPTION
The SSM2166 integrates a complete and flexible solution for conditioning microphone inputs in computer audio systems. It is also excellent for improving vocal clarity in communications and public address systems. A low noise voltage controlled amplifier (VCA) provides a gain that is dynamically adjusted by a control loop to maintain a set compression characteristic.

FEATURES
    Complete Microphone Conditioner in a 14-Lead Package
    Single +5 V Operation
    Adjustable Noise Gate Threshold
    Compression Ratio Set by External Resistor
    Automatic Limiting Feature—Prevents ADC Overload
    Adjustable Release Time
    Low Noise and Distortion
    Power-Down Feature
    20 kHz Bandwidth (±1 dB)
    Low Cost

APPLICATIONS
    Microphone Preamplifier/Processor
    Computer Sound Cards
    Public Address/Paging Systems
    Communication Headsets
    Telephone Conferencing
    Guitar Sustain Effects Generator
    Computerized Voice Recognition
    Surveillance Systems
    Karaoke and DJ Mixers