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Low Voltage Microphone Preamplifier With Variable Compression and Noise Gating
Model: SSM2167
- Complete microphone conditioner in a 10-lead package
- Single 3 V operation
- Low shutdown current < 2 µA
- Adjustable noise gate threshold
- Adjustable compression ratio
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The SSM2167 is a complete and flexible solution for conditioning microphone inputs in personal electronics and computer audio systems. It is also excellent for improving vocal clarity in com-munications 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. The compression ratio is set by a single resistor and can be varied from 1:1 to over 10:1 relative to the fixed rotation point. Signals above the rotation point are limited to prevent overload and to eliminate popping. A downward expander (noise gate) prevents amplification of background noise or hum. This results in optimized signal levels prior to digitization, thereby eliminating the need for additional gain or attenuation in the digital domain. The flexibility of setting the compression ratio and the time constant of the level detector, coupled with two values of rotation point, make the SSM2167 easy to integrate in a wide variety of microphone conditioning applications. The device is available in a 10-lead MSOP package, and is guaranteed for operation over the extended industrial temperature range of ?40°C to +85°C.
- 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
- Preamplifier Signal Type - Audio
- Spec Sheet available - Yes
- Supply Voltage (dual supply): 6 V
- Input Voltage: 6 V
- Voltage Span Min: 3 V
- Voltage Span Max: 3 V
- Storage Temperature Range: -40 to +85 °C
- Operating Temperature Range: -65 to +150 °C
- Junction Temperature Range: 150 °C
- Lead Temperature (Soldering, 60 Sec): 300 °C
- ESD Ratings 883 (Human Body) Model: 500 V
- Bandwidth: 20 kHz
- THD: < 0.2 %
Microphone Preamplifier
209 kb
- Data Sheet
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Create Spaces
623 S Americana Blvd, Boise, ID 83702
Boise, ID 83702
USA
2083850507
https://createspaces.com/
Contact in regards to this product:
Analog Devices, Inc.
Model: SSM2167
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