SSM2211 is a low distortion, 1.5W audio power amplifier suitable for applications such as portable computers, personal wireless communicators, hands-free telephones, speaker phones, intercoms, musical toys, and talking games.
The SSM2211 audio power amplifier delivers up to 1.5 W into an 8 Ω bridge‑tied load with THD+N below 0.2 % at 1 W. It operates from a single supply voltage of 2.7 V to 5.5 V and can run down to 1.75 V for battery‑powered applications such as toys and portable devices. The device features a highly stable phase margin (>80°), excellent PSRR (66 dB), and an automatic shutdown circuit that reduces quiescent current to 1 pA.
The datasheet provides electrical characteristics, absolute maximum ratings, thermal resistance data for both SOIC and LFCSP packages, pin configurations, and typical performance graphs. It also includes an ordering guide and revision history for the product.
| Output Power | 1.5 W |
|---|---|
| THD+N (1 W, 8 Ω) | 0.2 % |
| Bandwidth | 4 MHz |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
The SSM2211 can deliver up to 1.5 W into an 8 Ω bridge‑tied load.
It operates from a single supply voltage of 2.7 V to 5.5 V and can run down to 1.75 V in battery‑powered mode.
THD+N is 0.2 % at 1 W output into an 8 Ω load.