SSM2166
PRODUCTIONComplete Microphone Conditioner with Variable Compression & Noise Gating
- Part Models
- 3
- 1ku List Price
- Starting From $3.85
Part Details
- 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)
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. The compression ratio is set by a single resistor and can be varied from 1:1 to over 15:1 relative to a user-defined rotation point; signals above the rotation point are limited to prevent overload and to eliminate popping. In the 1:1 compression setting, the SSM2166 can be programmed with a fixed gain of up to 20 dB; this gain is in addition to the variable gain in other compression settings. The input buffer can also be configured for front-end gains of 0 dB to 20 dB. A downward expander (noise gate) prevents amplification of 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 that could add noise or impair accuracy of speech recognition algorithms. The compression ratio and time constants are set externally. A high degree of flexibility is provided by the VCA gain, rotation point, and noise gate adjustment pins.
The SSM2166 is an ideal companion product for audio codecs used in computer systems. The SSM2166 is available in a 14-lead SOIC package and is guaranteed for operation over the extended industrial temperature range of −40°C to +85°C.
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
Documentation
Data Sheet 1
Application Note 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| SSM2166SZ | 14-Lead SOIC | ||
| SSM2166SZ-REEL | 14-Lead SOIC | ||
| SSM2166SZ-REEL7 | 14-Lead SOIC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Apr 21, 2021 - 21_0080 Amkor Philippines as an Alternate Site for SOICN |
||
| SSM2166SZ | PRODUCTION | |
| SSM2166SZ-REEL | PRODUCTION | |
| SSM2166SZ-REEL7 | PRODUCTION | |
|
Nov 13, 2013 - 13_0265 Qualification of ASE Chungli, as an Alternate Assembly Site for Select 8L and 14L SOICN Packages |
||
| SSM2166SZ | PRODUCTION | |
| SSM2166SZ-REEL | PRODUCTION | |
| SSM2166SZ-REEL7 | PRODUCTION | |
|
Oct 5, 2010 - 10_0146 Halogen Free Material Change for 14/16L SOIC_N Products |
||
| SSM2166SZ | PRODUCTION | |
| SSM2166SZ-REEL | PRODUCTION | |
| SSM2166SZ-REEL7 | PRODUCTION | |
|
Mar 25, 2009 - 08_0152 SSM2166, New Design and Conversion to new wafer fabrication process |
||
| SSM2166SZ | PRODUCTION | |
| SSM2166SZ-REEL | PRODUCTION | |
| SSM2166SZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.