TAS5780M - 20-W, Digital Input, Stereo, Closed-Loop Class-D Amplifier with 96-kHz Processing

The TAS5780M device is a high-performance, stereo closed-loop Class-D amplifier with integrated audio processor with 96-kHz architecture. To convert from digital to analog, the device uses a high performance DAC with Burr Brown™ audio technology. It requires only two power supplies: one DVDD for low-voltage circuitry and one PVDD for high-voltage circuitry. It is controlled by a software control port using standard I²C communication.

An optimal mix of thermal performance and device cost is provided in the 90 mΩ r_DS(on) of the output MOSFETs. Additionally, a thermally enhanced 48-Pin TSSOP provides excellent operation in the elevated ambient temperatures found in modern consumer electronic devices.

• Flexible Audio I/O Configuration
  • Supports I²S, TDM, LJ, RJ Digital Input
  • Sample Rate Support
  • Stereo Bridge Tied Load (BTL) or Mono Parallel Bridge Tied Load (PBTL) Operation
  • 1SPW Amplifier Modulation
  • Supports 3-Wire Digital Audio Interface (No MCLK required)
• High-Performance Closed-Loop Architecture (PVDD = 12 V, R_SPK = 8 Ω, SPK_GAIN = 20 dB)
  • Idle Channel Noise = 62 µVrms (A-Wtd)
  • THD+N = 0.2% (at 1 W, 1 kHz)
  • SNR = 103dB A-Wtd (Ref. to THD+N = 1%)
• Fixed-Function Processing Features
  • 12 BiQuads
    • Internal Bank Switch for Fast Change of the 12 BiQuads
  • 2-Band Advanced DRC + AGL
  • DPEQ
  • SRC supports 32, 44.1, 48, 88.2, 96 kHz
  • 96-kHz Processor Sampling
• Communication Features
  • Software Mode Control via I²C Port
  • Two Address Select Pins – Up to 4 Devices
• Robustness and Reliability Features
  • Clock Error and Short-Circuit Protection
  • Overtemperature and Overcurrent Protection