The SSM2166 is a complete and flexible audio system microphone input conditioner, which is ideal for improving vocal clarity and as a microphone preamplifier/processor in computer audio systems.
The SSM2166 is a 14‑lead SOIC microphone preamplifier that provides variable compression, noise gating and automatic limiting on a single 5 V supply. It is intended for computer sound cards, public‑address systems, headsets and other voice‑band applications.
The document includes functional block diagrams, pin configuration, electrical specifications, absolute maximum ratings and typical performance curves, along with guidelines for layout and evaluation board use.
| Supply Current | 10 mA |
|---|---|
| Power Supply Rejection Ratio (PSRR) | 50 dB |
| VCA Dynamic Gain Range | 60 dB |
| Operating Temperature Range | -40 °C to +85 °C |
The device is rated for operation from –40 °C to +85 °C.
The SSM2166 is provided in a 14‑lead SOIC package.
The VCA can deliver up to 60 dB of dynamic gain.