This document provides a detailed introduction to SSM2211 audio amplifier, including product features, application scenarios, functions and usage methods.
The SSM2211 is a high performance audio amplifier designed to deliver 1 W rms of low distortion audio power into a bridge-connected 8 Ω speaker load, or 1.5 W rms into a 4 Ω load. It operates over a wide temperature range and is specified for single-supply voltages between 2.7 V and 5.5 V, making it suitable for unregulated applications like toys and games where it continues to operate down to 1.75 V.
| Supply Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Minimum Operating Voltage | 1.75 V |
| Bandwidth | 4 MHz |
| Total Harmonic Distortion | 0.2% THD + N @ 1 W |
| Phase Margin | >80 degrees |
| Operating Temperature Range | -40°C to +85°C |
| Supply Current (Shutdown) | 100 nA |
| Package Types | 8-lead SOIC and LFCSP |
The device functions down to 1.75 V when operating from batteries.
The shutdown mode typically reduces quiescent current drain to 100 nA.
The SSM2211 is available in 8-lead SOIC (narrow body) and LFCSP (lead frame chip scale) surface-mount packages.