GENERAL DESCRIPTION
The SSM2529 is a digital input, Class-D power amplifier that combines a digital-to-analog converter (DAC), a low power audio specific digital signal processor, 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 SSM2529 is ideal for power sensitive applications, such as mobile phones and portable media players, where system noise can the corrupt small analog signals that are sent to an analog input audio amplifier.

FEATURES
   Filterless mono, digital input Class-D amplifier
   I2C control interface
   Serial digital audio interface supports common formats
      (I2S, PCM, LJ, RJ, TDM1-16, PDM)
   Supports wide range of sample rates: 8.0 kHz to 96.0 kHz
   MCLK and BCLK can be provided by built-in phase-locked
      loop (PLL)
   Supports single power supply mode; DVDD can be provided
      by built-in low dropout (LDO) regulator
   2.5 V to 5.5 V SPKVDD operating supply voltage
   1.08 V to 1.98 V DVDD operating supply voltage
   Support off-chip volume control without I2C
   2.4 W into 4 Ω and 1.4 W into 8 Ω at 5 V supply with <1% THD + N
   Available in a 16-ball, 1.92 mm × 1.94 mm, 0.4 mm pitch WLCSP
   Efficiency 95% at full scale into 8 Ω
   Signal-to-noise ratio (SNR): 103 dB, A-weighted
   Power supply rejection ratio (PSRR): >80 dB at 217 Hz
   Digital volume control: −70 dB to +24 dB in 0.375 dB steps
   Ultralow idle current
   Autosample rate detection
   Pop-and-click suppression
   Short-circuit and thermal protection with programmable
      autorecovery
   Supports smart power-down when no input signal is detected
   Power-on reset and UVLO voltage monitoring
   Selectable ultralow EMI emission mode
   Supports SPKVDD voltage monitor
   Digital audio processing
      7-band programmable equalizer
      Programmable dynamic range compression (DRC) with
         noise gate, expander, compressor, and limiter

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