SSM2166S-REEL
数据手册.pdf麦克风前置放大器,可变压缩和噪声选通 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