TAS5806MD 23W stereo, digital closed-loop Class-D audio amp with processing and headphone driver | TI.com

TAS5806MD (ACTIVE) 23W stereo, digital closed-loop Class-D audio amp with processing and headphone driver

 

Description

The TAS5806MD is a high-efficiency, stereo, closed loop Class-D amplifier offering a cost-effective digital input solution with low power dissipation and sound enrichment. The device’s integrated audio processor and 96 kHz architecture support advanced audio process flow, including SRC, 15 BQs per channel, volume control, audio mixing, 3-band 4th order DRC, full-band AGL, THD manager and level meter.

Featuring TI’s proprietary Hybrid Modulation scheme, the TAS5806MD consumes very-low quiescent current (16.5 mA at 13.5 V PVDD), extending battery life in portable audio applications. With advanced EMI suppression technology, for applications under 10 W designers can leverage inexpensive ferrite bead filters to reduce board space and system cost. The device has an integrated DirectpathTM Headphone amplifier and line driver to increase the system-level integration and reduce total solution costs.

Features

  • Supports multiple output configurations:
    • 2 × 23 W in 2.0 mode (8-Ω, 21 V, THD+N=1%)
    • 45 W in mono mode (4-Ω, 21 V, THD+N=1%)
  • Excellent audio performance
    • THD+N ≤ 0.03% at 1 W, 1 kHz, PVDD = 12 V
    • SNR ≥ 107 dB (A-weighted), Noise Level < 40 µVrms
  • Flexible power supply configurations
    • PVDD: 4.5 V to 26.4 V
    • DVDD and I/O: 1.8 V or 3.3 V
  • Flexible Audio I/O
    • I2S, LJ, RJ, TDM, 3-wire digital audio interface (no MCLK required)
    • Supports 32, 44.1, 48, 88.2, 96 kHz sample rates
    • SDOUT for audio monitoring, sub-channel or echo cancellation
  • Enhanced audio processing
    • Multi-band advanced DRC and AGL
    • 2×15 BQs, thermal foldback, DC blocking
    • Input mixer, output crossbar, level meter
    • 5 BQs + 1 band DRC +THD manager for the subwoofer channel
    • Sound field spatializer option
  • Integrated self-protection
    • Adjacent pin-to-pin short without damage
    • Over-current error
    • Over-temperature warning and error
    • Under-voltage, over-voltage lock-out (UVLO, OVLO)
  • Easy System Integration
    • I2C software control
    • Reduced Solution Size
      • Fewer passives required compared to open-loop devices
      • Inductor-less operation (ferrite bead) for most cases where PVDD ≤ 14V
      • Stereo headphone, stereo line drivers adjust gain through I2C
      • DirectPath technology eliminates bulky dc-blocking capacitors

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Parametrics

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Part number Order Audio input type Architecture Speaker channels (Max) Power stage supply (Min) (V) Power stage supply (Max) (V) Output power (W) Load (Min) (ohms) SNR (dB) THD + N @ 1 kHz (%) Iq (Typ) (mA) Control interface Closed/open loop Analog supply (Min) (V) Analog supply (Max) (V) Power to parallel bridge tied load (Max) (W) Sampling rate (Max) (kHz) PSRR (dB) Operating temperature range (C) Rating
TAS5806MD Order now Digital Input     Class-D     Stereo     4.5     26.4     23     4     107     0.03     16.5     I2C     Closed     4.5     26.4     45     96       -25 to 85     Catalog    
TAS5717 Order now Digital Input     Class-D     Stereo     4.5     26     30     4     105     0.13     48     Software     Open     3     3.6       48       0 to 85     Catalog    
TAS5719 Order now Digital Input     Class-D     Stereo     4.5     26     15     4     105     0.13     26     Software     Open     3     3.6       48       0 to 85     Catalog    
TAS5753MD Order now Digital Input     Class-D     Stereo     8     26.4     20     2     105     0.13     23     I2C     Open     3     3.6     65     48       0 to 85     Catalog    
TAS5760MD Order now Digital Input     Class-D     Stereo     4.5     26.4     24