SSM2301 - Analog Devices

SSM2301 Filterless High Efficiency Mono 1.4 W Class-D Audio Amplifier

The SSM2301 is a fully integrated, high efficiency, Class-D audio amplifier designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.0 V supply. It is capable of delivering 1.4 W of continuous output power with less than 1% THD + N driving an 8 Ω lo.

Features

Filterless Class-D amplifier with Σ-Δ modulation No sync necessary when using multiple Class-D amplifiers from Analog Devices, Inc. 1.4 W into 8 Ω at 5.0 V supply with less than 1% THD + N 85% efficiency at 5.0 V, 1.4 W into 8 Ω speaker Greater than 98 dB SNR (signal-to-noise ratio) Single-supply operation from 2.5 V to 5.0 V 20 nA ultralow shutdown current Short-circuit and thermal protection Available in 8-lead, 3 mm × 3 mm LFCSP and MSOP packages Pop-and-click suppression Built-in resistors reduce board component count Fixed and user-adjustable gain configurations APPLICATIONS Mobile phones.