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Texas Instruments TAS5802 2×22W Class-D Audio Amplifier

Texas Instruments TAS5802 2×22W Digital Input Class-D Audio Amplifier drives loudspeakers in consumer, commercial, and industrial electronics. The device is highly flexible, allowing operation with various control methods, power supply configurations, and audio I/O arrangements.

The Texas Instruments TAS5802 high-performance closed-loop architecture and wide-switching frequency range reduce the solution size by reducing passive components and eliminating most applications' inductor + capacitor (LC) filters. Advanced electromagnetic interference (EMI) reduction techniques allow excellent electromagnetic compliance (EMC) performance, even when used with ferrite bead + capacitor (BC) filters. Several power consumption methods have been implemented to minimize idle power consumption (IPC).

Features

  • Supports multiple output configurations
    • 2 × 22.7W, BTL mode (8Ω, 20V, THD+N=1%)
    • 2 × 28W, BTL mode (6Ω, 20V, THD+N=1%)
  • Excellent audio performance
    • 65µVrms Idle noise (typical)
    • THD+N ≤ 0.06% at 1W, 1kHz, PVDD = 12V
    • SNR ≥ 108dB (A-weighted)
  • High-efficiency class-D and better thermal performance of > 90% power efficiency, 120mΩ RDS(on)
  • Flexible audio I/O
    • I2S, LJ, RJ, TDM
    • Supports 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz sample rates
    • SDOUT for audio monitoring, sub-channel, and echo cancellation
    • Supports stereo bridge-tied (BTL)
  • Enhanced audio processing
    • Multi-band advanced DRC+AGL
    • 2×15 BQs with smart EQ
    • Dynamic EQ and smart bass
    • DC blocking
  • Excellent power consumption profile
    • Non-latching over-current error (OCE)
    • Enhanced over-temperature protection
      • Over-temperature warning (OTW)
      • Over-temperature error (OTE)
    • Under/over-voltage lock-out (UVLO/OVLO)
  • Easy system integration
    • Flexible control strategy
      • Software control (full features)
    • Reduced solution size
      • Fewer passives are required to compare with open-loop devices
      • Inductor-less operation (ferrite bead) for most cases where PVDD ≤ 12V

Applications

  • Sounds bars and PC audio
  • Wireless BLUETOOTH® speakers
  • DTV, HDTV, UHD, and multi-purpose monitors

Functional Block Diagram

Block Diagram - Texas Instruments TAS5802 2×22W Class-D Audio Amplifier
發佈日期: 2025-09-26 | 更新日期: 2025-09-30