23-W stereo, 45-W mono, 4.5- to 26.4-V, digital input Class-D audio amplifier w/ processing & P2P HP


Product details


Audio input type Digital Input Architecture Class-D Speaker channels (Max) Stereo Power stage supply (Max) (V) 26.4 Power stage supply (Min) (V) 4.5 Load (Min) (ohms) 4 Output power (W) 23 SNR (dB) 107 THD + N @ 1 kHz (%) 0.03 Iq (Typ) (mA) 16.5 Control interface I2C Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 26.4 Power to parallel bridge tied load (Max) (W) 45 Sampling rate (Max) (kHz) 96 Rating Catalog Operating temperature range (C) -25 to 85 open-in-new Find other Speaker amps

Package | Pins | Size

HTSSOP (DCP) 38 43 mm² 9.7 x 4.4 open-in-new Find other Speaker amps


  • 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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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.

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Technical documentation

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Type Title Date
* Datasheet TAS5806MD 23-W, Inductor-Less, Digital Input, Stereo, Closed-Loop Class-D Audio Amplifier with Enhanced Processing and DirectPathTM HP Driver datasheet May 29, 2019
Application notes TAS5805M, TAS5806M, and TAS5806MD Process Flows (Rev. A) Jul. 03, 2019
User guides TAS5806MDEVM User's Guide Apr. 17, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide
  • 96-kHz Input sample rate support
  • 2.0, Mono and 2.1 capable
  • Operates in BTL or PBTL
  • Flexible input signal routing
  • Demonstration, evaluation and development environment via the PurePath Console 3 software (GUI)

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HTSSOP (DCP) 38 View options

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PurePath™ Studio Graphical Development Environment Start-up

A step-by-step guide to downloading and installing TI's PurePath™ Studio software for audio evaluation modules. This video features the TLV320AIC3254EVM-U.

Posted: 17-Jan-2016
Duration: 03:45

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