GENERAL DESCRIPTION
The SSM2306 is a fully integrated, high efficiency, Class-D stereo audio amplifier designed to maximize performance for portable applications. The application circuit requires minimum external components and operates from a single 2.5 V to 5.0 V supply. It is capable of delivering 2 W of continuous output power with less than 10% total harmonic distortion plus noise (THD + N) driving a 4 Ω load from a 5.0 V supply.

FEATURES
   Filterless Class-D amplifier with built-in output stage
   2 W into 4 Ω and 1.4 W into 8 Ω at 5.0 V supply
   Ultralow idle current with load resistance
   >87% efficiency at 5.0 V, 1.4 W into 8 Ω speaker
   Better than 96 dB signal-to-noise ratio (SNR)
   Available in a 16-lead, 3 mm × 3 mm LFCSP
   Single-supply operation from 2.5 V to 5.0 V
   20 nA ultralow shutdown current
   Short-circuit and thermal protection
   Pop-and-click suppression
   Built-in resistors reduce board component count
   Default fixed 18 dB gain and user-adjustable

APPLICATIONS
   Mobile phones
   MP3 players
   Portable gaming
   Portable electronics
   Educational toys
   Notebook computers