GENERAL DESCRIPTION
The SSM2519 is a digital input, Class-D power amplifier that combines a digital-to-analog converter (DAC) and a sigma-delta (Σ-Δ) Class-D modulator. This unique architecture enables extremely low, real-world power consumption from digital audio sources with excellent audio performance. The SSM2519 is ideal for power sensitive applications, such as mobile phones and portable media players, where system noise can corrupt small analog signals such as those sent to an analog input audio amplifier.

FEATURES
   Filterless digital input Class-D amplifier
   Standalone operation or I2C control
   Serial digital audio interface supports common formats: I2S,
      left justified, right justified, TDM1-16, and PCM
   2.31 W into 4 Ω and 1.35 W into 8 Ω at 5 V supply with
      1% THD + N
   Available in 12-ball 1.4 mm × 1.7 mm × 0.4 mm pitch WLCSP
   Efficiency 90% at full scale into 8 Ω
   9 mW loaded idle power at 1.8 V/3.6 V
   SNR = 98 dB, A-weighted
   PSRR = 80 dB at 217 Hz, dither input
   Supports wide range of sample rates: 8.0 kHz to 48.0 kHz
   Autosample rate and MCLK rate detection
   No BCLK required for operation
   2.5 V to 5.5 V PVDD speaker operating supply voltage
   1.5 V to 3.6 V VDD operating voltage
   Pop and click suppression
   Short-circuit and thermal protection with autorecovery
   Smart power-down when no input signal detected
   Power-on reset
   Low EMI emissions

APPLICATIONS
   Mobile phones
   Portable media players
   Laptop PCs
   Wireless speakers
   Portable gaming
   Navigation systems