This data sheet introduces the features of the SSM3302 filterless Class-D stereo audio amplifier
The SSM3302 is a fully integrated, high‑efficiency stereo Class‑D audio amplifier. It operates from a single 7 V to 18 V supply and provides up to 2 × 10 W continuous output into 4 Ω loads (or 2 × 8 W into 8 Ω) with less than 1 % THD+N. Key features include filter‑less operation, a flexible gain‑select pin (9 dB–24 dB), built‑in shutdown (10 pA), pop‑and‑click suppression, and an optional ultralow‑EMI mode.
The device is intended for mobile computing, flat‑panel TVs, portable electronics, sound bars and other audio applications. It is supplied in a 40‑lead, 6 mm × 6 mm lead‑frame chip‑scale package (LFCSP) and includes protection features such as short‑circuit, over‑temperature shutdown, and ESD tolerance.
| Signal‑to‑Noise Ratio | ≥ 98 dB |
|---|---|
| Supply Voltage Range | 7 V to 18 V |
| Input Impedance | 40 kΩ |
| Shutdown Current | 10 pA typical |
| Gain Select Range | 9 dB to 24 dB |
It operates from a single supply voltage between 7 V and 18 V.
The shutdown current is typically 10 pA.
The amplifier achieves a signal‑to‑noise ratio of at least 98 dB.