SSM2166S ADI (亞德諾) AB類放大器
產品概述
麥克風前置放大器，可變壓縮和噪聲選通 Microphone Preamplifier with Variable Compression and Noise Gating
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 SOIC 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)
APPLICATIONS
Microphone preamplifiers/processors
Computer sound cards
Public address/paging systems
Communication headsets
Telephone conferencing
Guitar sustain effects generators
Computerized voice recognition
Surveillance systems
Karaoke and DJ mixers
