The SSM2302 is a fully integrated, high efficiency, Class-D stereo audio amplifier designed for mobile phone applications. It features 1.4 W output power, 85% efficiency, and better than 98 dB SNR.
The SSM2302 is a fully integrated, filter‑less Class‑D stereo audio amplifier designed for mobile and portable electronics. It operates from a single 2.5 V to 5.0 V supply, delivers up to 1.4 W into an 8 Ω load, and features built‑in pop‑and‑click suppression, short‑circuit and thermal protection, and an ultralow 20 nA shutdown current.
The document includes detailed specifications, absolute maximum ratings, pin‑out descriptions, typical performance curves, and application notes such as gain selection and EMI mitigation. It also provides layout guidelines, evaluation board information, and thermal resistance data for designers.
| Output Power | 1.4 W into 8 Ω at 5.0 V supply |
|---|---|
| Efficiency | 85 % at 5.0 V, 1.4 W into 8 Ω |
| Signal‑to‑Noise Ratio | Better than 98 dB |
| Supply Voltage Range | 2.5 V to 5.0 V (single‑supply) |
| Shutdown Current | 20 nA (typical) |
| Operating Temperature Range | -40 °C to +85 °C |
| Absolute Maximum Supply Voltage | 6 V |
The SSM2302 has a typical shutdown current of 20 nA.
It operates from a single‑supply voltage of 2.5 V to 5.0 V.
The device achieves 85 % efficiency at 1.4 W into an 8 Ω load with a 5.0 V supply.
The SSM2302 provides a signal‑to‑noise ratio better than 98 dB.