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TAS5805M Audio Amplifier

Texas Instruments

TAS5805M Audio Amplifier

Texas Instruments' 23 W, digital-input audio amplifier features extended processing and battery life in portable audio applications

Texas Instruments' TAS5805M high-efficiency, stereo, closed-loop, Class-D amplifier is a cost-effective, digital-input solution with low power dissipation and sound enrichment. This device features an integrated audio processor and 96 kHz architecture that support advanced audio process flow, including sample rate conversion (SRC), 15 BQs per channel, volume control, audio mixing, 3-band 4th order dynamic range compression (DRC), full-band above ground level (AGL), total harmonic distortion (THD) manager, and a level meter.

The TAS5805M features TI’s proprietary hybrid modulation scheme that consumes ultra-low quiescent current of 16.5 mA at 13.5 V PVDD which extends battery life in portable audio applications. Designers leverage inexpensive ferrite bead filters to reduce board space and system cost with advanced electromagnetic interference (EMI) suppression technology.

  • Supports multiple output configurations:
    • 2 x 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 ≤ 0.3% at 1 W, 1 kHz, PVDD = 12 V
    • Signal-to-noise ratio (SNR) ≥ 107 dB (A-weighted), noise level < 40 µVRMS
  • Low quiescent current with hybrid modulation:
    • 16.5 mA at PVDD = 13.5 V, 22 µH + 0.68 µF filter
  • Flexible power supply configurations
  • Flexible audio input/output (I/O)
  • Enhanced audio processing:
    • Multi-band advanced DRC and AGL
    • 2 BQs x 15 BQs, thermal foldback (TFB), and direct current (DC) blocking
    • Input mixer, output crossbar, and a level meter
  • Integrated self-protection:
    • Adjacent pin-to-pin short without device damage
    • Overcurrent error (OCE)
  • Easy system integration:
    • I2C software control
    • Reduced solution size
  • LCD TVs and OLED TVs
  • Wireless speakers, smart speakers with voice assistant
  • Soundbars, wired speakers, and bookshelf stereo systems
  • Desktop PCs and notebook PCs
  • AV receivers, smart homes, and Internet of Things (IoT) appliances

TAS5805MPWP Audio Amplifier

Image Manufacturer Part Number Description Type Output Type Max Output Power x Channels @ Load Available Quantity View Details
TAS5805M 23-W, DIGITAL INPUT, ST TAS5805MPWP TAS5805M 23-W, DIGITAL INPUT, ST Class D 1-Channel (Mono) or 2-Channel (Stereo) 45W x 1 @ 4 Ohm, 23W x 2 @ 8 Ohm 128 - Immediate
9850 - Factory Stock
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Evaluation Board

Image Manufacturer Part Number Description Amplifier Type Output Type Board Type Available Quantity View Details
DEVELOPMENT AMPLIFIER TAS5805MEVM DEVELOPMENT AMPLIFIER Class D 1-Channel (Mono) or 2-Channel (Stereo) Fully Populated 3 - Immediate
102 - Factory Stock
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