Texas Instruments

TAS5782M Class-D Amplifier

Texas Instruments offers the TAS5782M 30 W, digital input, stereo, closed-loop Class-D amplifier with 96 kHz flexible processing

Image of Texas Instruments' TAS5782M Class-D AmplifierTexas Instruments' TAS5782M device is a high-performance, stereo, closed-loop Class-D amplifier with integrated audio processor with up to 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 RDS(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.

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 = 12 V, RSPK = 8 Ω, SPK_GAIN = 20 dB)
    • Closed-loop = reduced component count/ smaller solution size
    • 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%)
  • Flexible processing features
    • 15 BiQuads / SmartEQ
    • 2 x 5 BiQuads for X-Over / EQ
    • 3-band advanced DRC + AGL
    • Dynamic EQ and SmartBass
    • Sound field spatializer (SFS)
    • 96 kHz processor sampling
  • Communication features
    • Software mode control via I2C port
    • Two address select pins - up to four devices
    • Robustness and reliability features
    • Clock error, DC, and short-circuit protection
    • Overtemperature and overcurrent protection
Applications
  • LCD, LED TV, and multi-purpose monitors
  • Sound bars, docking stations, and PC audio
  • Wireless subwoofers, Bluetooth® speakers, and active speakers
Published: 2017-06-06

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