Texas Instruments TAS5782M Closed-Loop Class-D Amplifier

Texas Instruments TAS5782M Closed-Loop Class-D Amplifier is a high-performance, stereo Class-D amplifier with an integrated audio processor with up to 96kHz architecture. The device uses a high-performance DAC with Burr Brown™ audio technology to convert from digital to analog. It requires only two power supplies: one DVDD for low-voltage circuitry and one PVDD for high-voltage circuitry. The Texas Instruments TAS5782M is controlled by a software control port using standard I2C communication. An optimal thermal performance and device cost mix is provided in the 90mΩ rDS(on) of the output MOSFETs. Additionally, a thermally enhanced 48-Pin TSSOP package provides excellent operation in the elevated ambient temperatures in modern consumer electronic devices.

Features

  • Flexible audio I/O configuration
    • Supports I2S, TDM, LJ, RJ digital input
    • Sample rate support
    • BD amplifier modulation
    • Supports 3-wire digital audio interface (no MCLK required)
  • High-performance closed-loop architecture (PVDD = 12V, RSPK = 8Ω, SPK_GAIN = 20dB)
    • Closed-loop = reduced component count/smaller solution size
    • Idle channel noise = 62µVrms (A-Wtd)
    • THD+N = 0.2% (at 1W, 1kHz)
    • SNR = 103dB A-Wtd (Ref. to THD+N = 1%)
  • Flexible processing features
    • 15 BiQuads / SmartEQ
    • 2x5 BiQuads for X-Over / EQ
    • 3-band advanced DRC + AGL
    • Dynamic EQ and SmartBass
    • Sound Field Spatializer (SFS)
    • 96kHz processor sampling
  • Communication features
    • Software mode control via I2C port
    • Two address select pins – up to 4 devices
  • Robustness and reliability features
    • Clock error, DC, and short-circuit protection
    • Overtemperature and overcurrent protection

Applications

  • LCD, LED TV, and multi-purpose monitors
  • Soundbars, docking stations, and PC audio
  • Wireless subwoofers, BLUETOOTH® speakers, and active speakers

Block Diagram

Block Diagram - Texas Instruments TAS5782M Closed-Loop Class-D Amplifier
Opublikowano: 2017-05-23 | Zaktualizowano: 2022-05-16