The SSM2335 is a fully integrated, high efficiency, filterless 3W mono Class-D audio amplifier. It features Σ-Δ modulation and allows for the use of multiple Class-D amplifiers from Analog Devices without the need for synchronization. It can deliver 3W into a 3Ω load and 1.4W into an 8Ω load at a supply voltage of 5.0V with less than 1% total harmonic distortion (THD + N). The efficiency reaches 93% at 5.0V with 1.4W into an 8Ω speaker, and the signal-to-noise ratio (SNR) is greater than 96dB. It operates from a single supply voltage ranging from 2.5V to 5.5V and has an ultralow shutdown current of 20nA. It includes short-circuit and thermal protection and is suitable for use in mobile phones, MP3 players, portable gaming devices, portable electronics, and educational toys.
The SSM2335 is a fully integrated, filter‑less Class‑D audio amplifier designed for mobile and portable electronics. It delivers up to 3 W into a 3 Ω load or 1.4 W into an 8 Ω load from a 5 V supply with greater than 93% efficiency and over 96 dB signal‑to‑noise ratio. The device operates from a single 2.5 V to 5.5 V supply and includes built‑in pop‑and‑click suppression, short‑circuit and thermal protection, and an ultralow 20 nA shutdown current.
The datasheet details the functional block diagram, pin configuration, absolute maximum ratings, thermal resistance, and typical performance curves. It also lists the default 18 dB gain setting and how gain can be adjusted with external resistors, making the SSM2335 suitable for mobile phones, MP3 players, portable gaming devices, and educational toys.
| Output Power (3 Ω load) | 3 W |
|---|---|
| Output Power (8 Ω load) | 1.4 W |
| Efficiency | 93 % at 5 V, 1.4 W into 8 Ω |
| Signal‑to‑Noise Ratio (SNR) | >96 dB |
| Supply Voltage Range | 2.5 V to 5.5 V |
| Shutdown Current | 20 nA |
The device operates from a single supply voltage of 2.5 V to 5.5 V.
The SSM2335 has an ultralow shutdown current of 20 nA.
The device includes short‑circuit and thermal protection as well as pop‑and‑click suppression circuitry.