SSM2160 is a 6-channel, serial input master/balance volume controls, supports automatic power-on mute, has a 100dB dynamic range and excellent audio characteristics
The SSM2160 is a 6‑channel, digitally controlled volume control IC with a master attenuator and individual channel gain settings. It uses low‑distortion VCAs and click‑less step changes, offering 100 dB dynamic range, -90 dBu noise floor, and 0.01 % THD+N. The device can be powered from a single supply of 10‑20 V or a dual supply of +5 to +10 V, and it interfaces via a 3‑wire or 4‑wire serial data bus.
The datasheet includes detailed specifications, timing diagrams, absolute maximum ratings, pin descriptions, typical performance curves, and recommended application circuits for home‑theater receivers, automotive surround‑sound systems, and multichannel mixers. Ordering information and mechanical dimensions for the 24‑lead SOIC package are also provided.
| Dynamic Range | 100 dB |
|---|---|
| Noise Floor | -90 dBu |
| THD+N | 0.01 % |
| Channel Separation | 80 dB |
| Supply Voltage (Single) | 10‑20 V |
| Supply Voltage (Dual) | +5 to +10 V |
| Supply Current (No Load) | 20‑28 mA |
| Input Impedance | 10 kΩ |
| Output Impedance | 10 Ω |
The SSM2160 can operate from a single supply of 10 V to 20 V or from dual supplies of +5 V to +10 V.
The device provides volume control for six independent audio channels.
The specified noise floor is –90 dBu.
Step sizes are nominally 1 dB and can be changed by external resistors.