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TAS5825M ACTIVE 38-W stereo, 65-W mono, 4.5- to 26-V, digital input Class-D Smart Audio Amplifier w/ 192kHz arch TAS5825M is our 38-W stereo, 65-W mono Class-D digital input smart audio amplifier, with improved SNR, improved quiescent current, and Smart Amp capabilities.

Product details

Output power (W) 50 Power stage supply (max) (V) 26.4 Power stage supply (min) (V) 4.5 Speaker channels (max) Stereo Architecture Class-D, Smart Amp Audio input type Digital Input Control interface Software Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 26.4 Load (min) (Ω) 1 THD + N at 1 kHz (%) 0.02 Rating Catalog Operating temperature range (°C) -25 to 85
Output power (W) 50 Power stage supply (max) (V) 26.4 Power stage supply (min) (V) 4.5 Speaker channels (max) Stereo Architecture Class-D, Smart Amp Audio input type Digital Input Control interface Software Analog supply voltage (min) (V) 4.5 Analog supply voltage (max) (V) 26.4 Load (min) (Ω) 1 THD + N at 1 kHz (%) 0.02 Rating Catalog Operating temperature range (°C) -25 to 85
HTSSOP (DCA) 48 101.25 mm² (12.5 mm × 8.1 mm) VQFN (RMT) 48 35 mm² (7 mm × 5 mm)
  • PurePath Smart Amp:
    • Optimizes and Protects Dynamic Loudspeakers
    • Bass Q-compensation and Frequency Extension: More Loudness, Bass Enhancement, Better Clarity and Higher Fidelity.
    • Thermal and Excursion Limitation.
  • Stereo Class-D Amplifier With:
    • Wide Power Supply Range: 4.5 V –26.4 V
    • Wide Load Range: 2 Ω – 8 Ω;
    • High output current: 2x 7.5 A
    • Peak output power 2x 50 W/4 Ω
    • Continuous Power: 2x 20 W w/o heat sink
    • Click and Pop free: Power, Mute and Standby ON/OFF
    • Low Output Noise: <60 µVrms at 12 V-supply, <90 µVrms at 24-V supply
    • Low THD+N: <0.02% at 1 W/4 Ω, 1 kHz
    • Thermal, Over-Current and Short-Circuit Protected
  • Configurable Digital Audio Processor.
    • Down Mixing and Custom EQ with 10 BiQuads
  • Digital Audio Interface: I2S or TDM input w.
    • 44.1 kHz and 48 kHz FS
    • Configurable Digital Output
  • Multisegment DAC with Excellent Jitter Suppression
  • Integrated High-Performance Audio PLL
  • I2C control
  • 48-pin PowerPAD™ HTSSOP or VQFN Package
  • PurePath Smart Amp:
    • Optimizes and Protects Dynamic Loudspeakers
    • Bass Q-compensation and Frequency Extension: More Loudness, Bass Enhancement, Better Clarity and Higher Fidelity.
    • Thermal and Excursion Limitation.
  • Stereo Class-D Amplifier With:
    • Wide Power Supply Range: 4.5 V –26.4 V
    • Wide Load Range: 2 Ω – 8 Ω;
    • High output current: 2x 7.5 A
    • Peak output power 2x 50 W/4 Ω
    • Continuous Power: 2x 20 W w/o heat sink
    • Click and Pop free: Power, Mute and Standby ON/OFF
    • Low Output Noise: <60 µVrms at 12 V-supply, <90 µVrms at 24-V supply
    • Low THD+N: <0.02% at 1 W/4 Ω, 1 kHz
    • Thermal, Over-Current and Short-Circuit Protected
  • Configurable Digital Audio Processor.
    • Down Mixing and Custom EQ with 10 BiQuads
  • Digital Audio Interface: I2S or TDM input w.
    • 44.1 kHz and 48 kHz FS
    • Configurable Digital Output
  • Multisegment DAC with Excellent Jitter Suppression
  • Integrated High-Performance Audio PLL
  • I2C control
  • 48-pin PowerPAD™ HTSSOP or VQFN Package

The TAS576xM PurePath Smart Amp enhance the bass, sound fidelity and provide more loudness and at the same time drive a speaker to its thermal and mechanical limits.

The TAS576xM contains two BTL class-D amplifiers – with up to 2x50W peak into 4Ω. The amplifier is thermally designed to fit with the typical speaker so it can handle high peaks for the time it takes the speaker voice-coil to heat up, and then it lowers the average power to safe limits.

The wide supply range of 4.5 V to 26.4 V enables the use of a wide range of different power supply options from 2-cell Li-Ion batteries to fixed 24 V supply.

TI’s PurePath Smart Amp technology allow speakers to be driven with more peak power than their average power rating, without fear of damage to the speaker through over excursion or thermal-overload.

The TAS576xM PurePath Smart Amp enhance the bass, sound fidelity and provide more loudness and at the same time drive a speaker to its thermal and mechanical limits.

The TAS576xM contains two BTL class-D amplifiers – with up to 2x50W peak into 4Ω. The amplifier is thermally designed to fit with the typical speaker so it can handle high peaks for the time it takes the speaker voice-coil to heat up, and then it lowers the average power to safe limits.

The wide supply range of 4.5 V to 26.4 V enables the use of a wide range of different power supply options from 2-cell Li-Ion batteries to fixed 24 V supply.

TI’s PurePath Smart Amp technology allow speakers to be driven with more peak power than their average power rating, without fear of damage to the speaker through over excursion or thermal-overload.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TAS576xM 2x50-W/4-Ω PurePath Smart Amp datasheet (Rev. D) PDF | HTML Oct 10, 2018
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun 27, 2019
Application note Getting Started with Smart Amp Development (Rev. D) Mar 1, 2017
Application note PurePath™ Smart Amp for Laptops (Rev. A) Mar 10, 2015
Application note Audio Characterization Primer Aug 9, 2014
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) May 1, 2013

Design & development

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Evaluation board

TAS5766MRMTEVM — TAS5766M PurePath Smart Amp in QFN - Evaluation Module

The TAS5766MRTMEVM allows evaluation of the TAS5766M and TAS5768M family of PurePath™ Smart Amp closed-loop, I2S-input amplifiers. It is populated with two TAS5766MRMT (48-pin QFN package) devices which allow operation from power supply voltages from 4.5V to 26.4V.

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TAS57XXM IBIS Model

SLAM221.ZIP (105 KB) - IBIS model
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HTSSOP (DCA) 48 Ultra Librarian
VQFN (RMT) 48 Ultra Librarian

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