SSM2166
Complete Microphone Conditioner with Variable Compression & Noise Gating
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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)
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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
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Visit the ADI Support Page
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SSM2166
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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
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| SSM2166SZ-REEL |
14-Lead SOIC
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| SSM2166SZ-REEL7 |
14-Lead SOIC
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- SSM2166SZ
- Pin/Package Drawing
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14-Lead SOIC
- Documentation
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HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- SSM2166SZ-REEL
- Pin/Package Drawing
-
14-Lead SOIC
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- SSM2166SZ-REEL7
- Pin/Package Drawing
-
14-Lead SOIC
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
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
Filter by Model
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
