SSM2166SZ Microphone Pre-Amp Audio Interfaces by Analog Devices

Status: Production
Series: SSM2166
RoHS: Compliant
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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.

Prices starting from US$5.04


Distributor Starting From Stock
Logo for Analog Devices Analog Devices US$8.36
434
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Logo for Chip One Stop Chip One Stop US$6.00
124
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Logo for Newark Electronics Newark Electronics US$6.59
60
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Logo for element14 element14 US$5.63
60
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Logo for Farnell Farnell US$5.25
60
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Logo for Transfer Multisort Elektronik Transfer Multisort Elektronik US$5.59
3
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Logo for Richardson RFPD Richardson RFPD US$5.04
-
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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)

Alternative Descriptions

MICROPHONE PREAMP W/VAR COMPRE | Analog Devices
Microphone Preamplifier, Nsoic | Newark Electronics
MICROPHONE PREAMPLIFIER, NSOIC | element14
IC: audio amplifier | Transfer Multisort Elektronik
INTERFACE - AUDIO/VIDEO | Richardson RFPD


Frequently Asked Questions

Where can I find additional details, specifications and documents for a SSM2166SZ?

Additional datasheets, footprints and schematics for SSM2166SZ are listed on our Part Details page. You can also find images and similar parts to SSM2166SZ on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for SSM2166SZ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view SSM2166SZ price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does SSM2166SZ fall under?

The SSM2166SZ is listed under Microphone Pre-Amp Audio Interfaces.

Can I view similar or alternative parts?

You can view similar parts to SSM2166SZ when available in the Microphone Pre-Amp Audio Interfaces range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the SSM2166SZ you can contact the distributor directly for product support, shipping queries etc.

Is the SSM2166SZ RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for SSM2166SZ have stock available?

Authorised distributors including Analog Devices, Chip One Stop, Newark Electronics, element14 and Farnell have stock available or on a lead time for SSM2166SZ.

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