SSM2160SZ

Audio Special Purpose Overview

The SSM2160SZ is a six-channel, serial input master/balance volume control manufactured by Analog Devices Inc. It features clickless digitally controlled level adjustment with a 7-bit master DAC providing 128 attenuation levels and five-bit channel DACs offering 32 gain levels per channel. The device operates on single supplies of +10 V to +20 V or dual supplies from ±5 V to ±10 V. Key audio specifications include a 100 dB dynamic range, –90 dBu noise floor, and 0.01% THD+N. It utilizes low distortion voltage-controlled amplifiers (VCAs) and includes automatic power-on mute functionality.

Audio Special Purpose Feature Summary

• Six independent audio channels with individual balance control and a unified master volume control
• Clickless digital level adjustment using controlled rate-of-change drive to VCAs
• Serial interface compatible with 3-wire or 4-wire microcontroller buses
• Automatic power-on mute to prevent output transients

Audio Special Purpose Applications

• Home theater receivers
• Surround sound decoders including Circle Surround and AC-3
• DSP soundfield processors
• Automotive surround sound systems

Audio Special Purpose Procurement Notes

Verify the package option R-24 corresponds to the 24-Lead SOIC form factor. Confirm the operating temperature range meets the application requirement of 0°C to 70°C. Ensure the supply voltage configuration aligns with the specified single or dual supply ranges before integration.

Audio Special Purpose Selection Notes

Select this component for multichannel audio systems requiring precise digital volume and balance control. Ensure the system microcontroller supports the required serial data format. Verify that the external resistor values for MSTR SET and CH SET are calculated correctly if non-standard step sizes are needed to maintain desired control resolution.

Audio Special Purpose Part Context

The SSM2160 is part of Analog Devices' specialized audio IC portfolio designed for high-performance multichannel applications. It addresses the demand for advanced home theater and automotive audio systems that require more than standard stereo volume controls. The device integrates precision analog circuits with digital control logic to manage complex audio signal paths efficiently.

Audio Special Purpose Replacement Considerations

The SSM2160S is the tube-packaged equivalent of the SSM2160SZ reel variant. Both share identical electrical characteristics and pinouts. No other cross-model substitutes are documented in the provided source material.