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Texas Instruments TAS5827 Digital-Input Class-D Amplifier

Texas Instruments TAS5827 Digital-Input Closed-Loop Class-D Amplifier is a stereo high-performance amplifier with integrated audio processor and up to 192kHz audio support. When setting the device into hardware control mode, Texas Instruments TAS5827 supports selecting switching frequency, analog gain, BTL/PBTL mode, and cycle-by-cycle current limit threshold through pin configuration. This mode is designed to eliminate end-system software driver integration efforts.

Features

  • Supports multiple output configurations
    • 2 × 57W, BTL Mode (6Ω, 25V, THD+N=10%)
    • 2 × 55W, BTL Mode (4Ω, 21V, THD+N=10%)
    • 2 × 47W, BTL Mode (6Ω, 25V, THD+N=1%)
    • 2 × 45W, BTL Mode (4Ω, 21V, THD+N=1%)
    • 1 × 112W, PBTL Mode (3Ω, 25V, THD+N=10%)
    • 1 × 94W, PBTL Mode (3Ω, 25V, THD+N=1%)
  • Flexible audio I/O
    • Supports 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 192kHz sample rates
    • I2S, LJ, RJ, 4 to 16 channels TDM input
    • SDOUT for audio monitoring, sub-channel, or echo cancellation
    • Supports 3-wire digital audio interface (no MCLK required)
  • High-efficiency Class-D modulation
    • >90% power efficiency, 70mΩ RDSon
  • Excellent audio performance
    • THD+N ≤ 0.03% at 1W, 1kHz, PVDD = 12V
    • SNR ≥ 110dB (A-weighted), ICN ≤ 40µVrms
  • Flexible processing features
    • 3-Band advanced DRC + 2 EQs + AGL + 2 EQs
    • 12 BQs per channel, level meter
    • 96kHz, 192kHz processor sampling
    • Mixer, volume, dynamic EQ, output crossbar
    • PVDD sensing and Class-H algorithm audio signal tracking
  • Flexible power supply configurations
    • 4.5V to 26.4V PVDD
    • 1.8V or 3.3V DVDD and I/O
  • Excellent integrated self-protection
    • Over-current error (OCE)
    • The cycle-by-cycle current limit supports four selectable OC levels
    • Over-temperature warning (OTW)
    • Over-temperature error (OTE)
    • Under and over-voltage lock-out (UVLO/OVLO)
    • PVDD voltage drop detection
  • Easy system integration
    • I2C Software Control (TAS5827 supports both Fast and Fast Plus mode) or hardware mode
    • Fewer passives are required compared to open-loop devices

Applications

  • Battery-powered speaker
  • Wireless BLUETOOTH® speakers
  • Soundbars and subwoofers
  • Smart speaker

Functional Block Diagram

Block Diagram - Texas Instruments TAS5827 Digital-Input Class-D Amplifier

Related Development Tool

Texas Instruments TAS5827EVM Amplifier Evaluation Module (EVM)

The module helps designers evaluate the operation and performance of the TAS5827 Class-D amplifier.

Learn Moreabout Texas Instruments TAS5827EVM Amplifier Evaluation Module (EVM) View Productsrelated to Texas Instruments TAS5827EVM Amplifier Evaluation Module (EVM)
Published: 2024-03-01 | Updated: 2024-03-14