38-W stereo, 65-W mono, 4.5- to 26-V, digital input Class-D Smart Audio Amplifier w/ 192kHz arch


Product details


Audio input type Digital Input Architecture Class-D, Smart Amp 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) 38 SNR (dB) 111 THD + N @ 1 kHz (%) 0.02 Iq (Typ) (mA) 14.8 Control interface Software Closed/open loop Closed Analog supply (Min) (V) 4.5 Analog supply (Max) (V) 26.4 Sampling rate (Max) (kHz) 192 Operating temperature range (C) -25 to 85 open-in-new Find other Speaker amps

Package | Pins | Size

VQFN (RHB) 32 25 mm² 5 x 5 open-in-new Find other Speaker amps


  • Flexible audio I/O:
    • Supports 32, 44.1, 48, 88.2, 96, 192 kHz sample rates
    • I2S, LJ, RJ, TDM, SDOUT for audio monitoring, sub-channel or echo cancellation
    • Supports 3-wire digital audio interface (no MCLK required)
  • High-efficiency class-Dlration
    • > 90% Power efficiency, 90 mΩ RDSon
    • Low quiescent current, <20 mA at PVDD=12V
  • Supports multiple output configurations
    • 1 × 53 W, 1.0 Mode (4-Ω, 22V, THD+N=1%)
    • 1 × 65 W, 1.0 Mode (4-Ω, 22V, THD+N=10%)
    • 2 × 30 W, 2.0 Mode (8-Ω, 24 V, THD+N=1%)
    • 2 × 38 W, 2.0 Mode (8-Ω, 24 V, THD+N=10%)
  • Excellent audio performance:
    • THD+N ≤ 0.03% at 1 W, 1 kHz, PVDD = 12 V
    • SNR ≥ 110 dB (A-weighted), ICN ≤ 35 µVRMS
  • Flexible processing features
    • 3-Band advanced DRC + AGL,2 × 15 BQs,
    • Sound field spatializer (SFS), level meter
    • 96-kHz, 192-kHz processor sampling
    • Dynamic EQ, Bass enhancement and speaker thermal/excursion protection
  • Flexible power supply configurations
    • PVDD: 4.5 V to 26.4 V
    • DVDD and I/O: 1.8 V or 3.3 V
  • Excellent Integrated self-protection:
    • Over-current error (OCE)
    • Cycle-by-cycle current limit
    • Over-temperature warning (OTW)
    • Over-temperature error (OTE)
    • Under and over-voltage lock-out (UVLO/OVLO)
  • Easy system integration
    • I2C Software control
    • Reduced solution size
      • Small 5 x 5 mm Package
      • Fewer passives required compared to open-loop devices
      • No bulky electrolytic capacitors or large inductors required for most applications
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The is a stereo high-performance closed-loop Class-D with integrated audio processor with up to 192-kHz architecture.

The powerful audio DSP core supports several advanced audio process flows. With 48-kHz or 96-kHz architecture, an integrated SRC (Sample rate convertor) detects the input sample rate change. Then auto converts to the target sample rate which DSP is running to avoid any audio artifacts. These process flows support: 2×15 BQs, 3-Band DRC, Full-band AGL (Automatic Gain Limiter), Smart Amplifier Algorithm (Thermal and Excursion Protection), Bass enhancement, Spatializer,THD manager, PVDD Tracking and Thermal Foldback. The 192-kHz process flow offers Full-band AGL and Thermal Foldback .

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Technical documentation

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Type Title Date
* Data sheet TAS5825M 4.5 V to 26.4-V, 38-W Stereo, Inductor-Less, Digital Input, Closed Loop datasheet (Rev. G) Jul. 13, 2020
Application note TAS5825M Design Considerations for EMC (Rev. A) Jul. 12, 2021
Technical article How smart amps are bringing high-fidelity audio into the smart home May 03, 2021
Application note Presence Detection With TAS5825M Using Ultrasound Sep. 14, 2020
White paper Audio Innovation: Trends in Automotive, Smart Home and Pro Audio Applications Aug. 21, 2019
Application note General Tuning Guide for TAS58xx Family May 28, 2019
Application note TAS5825M Advanced Features Dec. 06, 2018
Application note Load TAS5825M Configurations from EEPROM via SPI Aug. 10, 2018
Application note TAS5825M Process Flows (Rev. A) Jul. 19, 2018

Design & development

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Hardware development


The PurePath™ Console Motherboard (PurePath-CMBEVM) provides a seamless interface between Ti’s latest PurePath Console GUI to supported TI’s digital and mixed-signal audio evaluation modules, including audio amplifiers and audio converters.

The PurePath-CMBEVM is shipped as a stand-alone board. It is (...)

  • Flexible and easy-to-use interface between PurePath Console GUI, multiple audio sources and supported TI’s digital and mixed-signal audio evaluation modules
    • Enables PurePath Console GUI to send I2C control signals via USB to supported TI’s audio evaluation modules
    • Auto-device detection initialization (...)
document-generic User guide

The TAS5825MEVM showcases the latest TI digital input class-D closed loop amplifier, TAS5825M, with up to 192kHz sampling and extended processing. The EVM is used in conjunction with the PurePath Console motherboard (PUREPATH-CMBEVM) and the PurePath Console 3 software (PUREPATHCONSOLE). There are (...)

  • 96-kHz /192-kHz input sample rate support
  • 2.0, Mono and 2.1 Capable
  • Operates in BTL or PBTL
  • PurePath Console motherboard provides flexible input signal routing (USB, SPDIF, and analog)
  • Demonstration, evaluation and development environment via the PurePath Console 3 software (GUI)
This 2.1 channel audio amplifier evaluation board incorporates the TAS5825M digital stereo amplifier for left and right channel audio and the TAS5720M digital mono amplifier for the subwoofer channel. The design operates from a single audio source interface and is scalable to 5.1, 7.1 and 9.1 (...)
  • PVDD tracking and thermal fold-back protection
  • Smart Amp technology
  • Modular, scalable multi-channel solution based on digital audio TDM digital audio TDM
  • Integrated self-protection (OCE, CB3C, OTW, OTE, UVLO, OVLO)
  • Integrated audio DSP with enhanced 96kHz processing supporting several advanced audio (...)

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

Reference designs

Scalable 2.1 channel audio amplifier reference design
TIDA-060026 — This 2.1 channel audio amplifier reference design incorporates the TAS5825M digital stereo amplifier for left and right channel audio and the TAS5720M digital mono amplifier for the subwoofer channel. The design operates from a single audio source interface and is scalable to 5.1, 7.1 and 9.1 (...)
document-generic Schematic

CAD/CAE symbols

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VQFN (RHB) 32 View options

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