DRV5825P

• Flexible audio I/O:
  • Supports 32, 44.1, 48, 88.2, 96kHz sample rates
  • I²S, LJ, RJ, TDM, SDOUT for Audio monitoring or echo cancellation
  • Supports 3-wire digital audio interface (no MCLK required)
• High-Voltage, High-Current Piezo Driver
  • 48V_PP
  • 2 × 7.5A for Stereo 2.0 Mode
  • 1 × 15A for 1.0 Mode
• Adaptive I/V Limiter
  • Adjustable Limit Threshold
  • Impedance and Frequency based current limiter
  • No gain attenuation until limiter has been triggered
  • No external power resistor needed
• Excellent audio performance:
  • THD+N ≤ 0.03% at Vout = 2Vrms, 1 kHz, PVDD = 12 V
  • SNR ≥ 110 dB (A-weighted), ICN ≤ 45 µVRMS
• Advanced processing features
  • SRC (Sample Rate Convertor), DC Blocking
  • Input Mixer, Output Crossbar, Level Meter
  • 2 × 15 BQs, 2 Post BQs, Clipper
  • Adaptive I/V Limiter, Full Band AGL
• Flexible power supply configurations
  • PVDD: 4.5 V to 26.4 V
  • DVDD and I/O: 1.8 V or 3.3 V
• Excellent Integrated self-protection:
  • Over-current error (OCE)
  • Cycle-by-cycle current limit
  • Over-temperature warning (OTW)
  • Over-temperature error (OTE)
  • Under/over-voltage lock-out (UVLO/OVLO)
• Easy System Integration
  • I²C Software Control
  • Reduced Solution Size
    • Small 5 x 5 mm Package
    • No external power resistor needed
    • No bulky electrolytic capacitors or large inductors required for most applications

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The DRV5825P is a stereo high-performance closed-loop Class-D with integrated audio processor with up to 96-kHz architecture.

The powerful audio DSP core supports advanced audio processing. An integrated SRC (Sample rate convertor) detects the input sample rate change. Then auto converts to the target sample rate which DSP is running to avoid any audio artifacts. These process flow supports: 2×15 BQs, Adaptive I/V Limiter based on Piezo speaker impedance and LC filter model, Full-band AGL (Automatic Gain Limiter),THD manager (Clipper).