This datasheet introduces the features and characteristics of the SSM2335 filterless, high efficiency, mono 3 W class-D audio amplifier.
The SSM2335 is a fully integrated Class‑D audio amplifier designed for mobile phone and portable electronics applications. It delivers up to 3 W continuous output power without external LC output filters, using Σ‑Δ modulation for low noise and high efficiency.
Typical applications include mobile phones, MP3 players, portable gaming devices and educational toys. The device features built‑in pop‑and‑click suppression, short‑circuit and thermal shutdown, and a default gain of 18 dB that can be adjusted with external resistors.
| Output Power | 3 W into 3 Ω at 5 V |
|---|---|
| Efficiency | 93 % at 5 V, 1.4 W into 8 Ω |
| THD+N | <1 % at 1 W into 8 Ω |
| Shutdown Current | 20 nA typical |
| Gain | Default 18 dB, adjustable |
The device has a typical shutdown current of 20 nA.
The default gain is 18 dB, and it can be reduced with external resistors.
The amplifier includes short‑circuit and thermal shutdown protection.