6.1-W, digital input, smart amp & integrated speaker protection, advanced EQ & 11-V Class-H boost


Product details


Audio input type Digital Input Architecture Class-D Boosted, Smart Amp Speaker channels (Max) Mono Power stage supply (Max) (V) 16 Power stage supply (Min) (V) 2.7 Load (Min) (ohms) 3.2 Output power (W) 6.1 SNR (dB) 112.5 THD + N @ 1 kHz (%) 0.01 Iq (Typ) (mA) 2.7 Control interface I2C Closed/open loop Closed Analog supply (Min) (V) 2.7 Analog supply (Max) (V) 5.5 Sampling rate (Max) (kHz) 96 PSRR (dB) 100 Operating temperature range (C) -40 to 85 open-in-new Find other Speaker amps

Package | Pins | Size

DSBGA (YBG) 42 8 mm² 2.538 x 2.997 VQFN-HR (RPP) 32 18 mm² 4.5 x 4 open-in-new Find other Speaker amps


  • Key Features
    • 11.5 V, 12-step Look-Ahead Class-H boost
    • Integrated DSP
    • Full Scale Ultrasonic Output to 40kHz
    • 2 PDM Microphone inputs
  • Powerful Class-D Audio Amplifier :
    • 6.1 W 1% THD+N (4 Ω, 3.6 V)
    • 5 W 1% THD+N (8 Ω, 3.6 V)
    • 10 W 1% THD+N (4 Ω, 12 V)
  • Protection Features:
    • Real-Time I/V-Sense Speaker Protection
    • Speaker Thermal & Over-Excursion Protection
    • Short and Open Load Protection
    • Thermal and Over-Current Protection
  • Advanced Audio Processing
    • Dedicated Real-Time DSP with:
      • 10-Band Equalizer
      • 3-Band Dynamic EQ
      • Dynamic Range Compression
      • Psychoacoustic Bass
  • Flexible Interfaces and Control :
    • I2S/TDM: 8 Channels of 32 Bit up to 96 KSPS
    • I2C: Selectable Addresses with Fast Mode+
    • Inter-Chp Communication Bus (DSBGA)
    • 8 kHz to 96 kHz Sample Rates
  • Power Efficiency and Flexibility :
    • 83.5% Efficiency at 1W
    • <1uA HW Shutdown VBAT Current
    • Boost-Bypass Mode
  • Power Supplies and Management
    • VBAT: 2.5 V to 5.5 V
    • VDD: 1.62 V to 1.95 V
    • PVDD: VBAT to 13 V (QFN)
    • PVDD: VBAT to 16 V (DSBGA)
    • IOVDD: 1.65 V to 3.6 V
    • VBAT Tracking Peak Voltage Limiter
    • Advanced Brown Out Prevention
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The TAS2563 is a digital input Class-D audio amplifier optimized for efficiently driving high peak power into small loudspeakers. The Class-D amplifier is capable of delivering 6.1 W of peak power into a 4 Ω load at battery voltage of 3.6 V using the integrated 11.5V Class-H boost, or 10W peak power into 4Ω load in boost bypass mode using external 12V supply.

An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection algorithms. The integrated current and voltage sense provide for real-time monitoring of the loudspeakers, which permits pushing peak sound pressure levels (SPL) while keeping speakers from being damaged.

The integrated look-ahead Class-H boost dynamically adjusts boost voltage during playback, increasing efficiency and saving battery life in battery-powered systems. For regulated wall-powered systems, TAS2563 also features a boost bypass mode, supporting supply voltages of up to 16V for even higher output power.

Two PDM microphone inputs simplify audio signal chain for two-way audio systems, interfacing digital microphones with the host processor. A battery tracking peak voltage limiter with brown-out protection prevents systems shutdowns by optimizing amplifier headroom over the entire charge cycle.

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Request access to TAS2563 software and other design resources. Please specify if using DSBGA or QFN version of the device. Request now

Technical documentation

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View all 31
Type Title Date
* Data sheet TAS25636.1-W Boosted Class-D Audio Amplifier With Integrated DSP and IV Sense datasheet (Rev. C) Mar. 01, 2021
Technical article How smart amps are bringing high-fidelity audio into the smart home May 03, 2021
Application note TAS2563 Tuning Guide (Rev. A) Mar. 08, 2021
Technical article How to extend battery life and reduce power consumption with Class-D audio amplifiers Dec. 10, 2020
Certificate TAS2X63EVM EU RoHS Declaration of Conformity (DoC) Dec. 08, 2020
Application note TAS2563 QFN Schematic & Layout Guidelines Nov. 18, 2020
Application note How to Use External PVDD Configuration Oct. 07, 2020
Application note Current and Voltage Sensing Accuracy and Linearity Jul. 21, 2020
Application note Limitations of Capacitor only EMI Filters on Class-D Amplifiers Jul. 21, 2020
Application note TAS2563 Device Features and Controls Overview Jul. 20, 2020
Application note TAS2563 End System Integration Guide Jul. 20, 2020
Application note TAS2563 Speaker Characterization Guide Jul. 20, 2020
Application note TAS2563 Quick Start Guide Jul. 13, 2020
Application note Requesting Access to Audio Software Jun. 18, 2020
Technical article How a look-ahead boost conquers battery-life challenges in speakers Feb. 20, 2020
Application note TAS2562, TAS2563 Thermal Foldback Feature on SmartAmps Jan. 29, 2020
Application note TAS2563 Schematic and Layout Guidelines Jan. 29, 2020
User guide SmartAmp Learning Board 2 User's Guide (Rev. A) Sep. 13, 2019
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application note Passive Component Selection Guide for Class-D Audio Amplifier Jun. 27, 2019
Application note Battery Voltage Tracking Limiter and Brown-Out Protection Jun. 26, 2019
Application note PCB Layout Guidelines for TAS2xxx Series Class-D Boosted Audio Amplifier Jun. 06, 2019
Application note Benefits of Class-G and Class-H Boost in Audio Amplifiers Apr. 30, 2019
Application note PLL and Clocking Configuration for Audio Devices Mar. 26, 2019
User guide TAS2563YBGEVM-DC Evaluation module user's guide Jan. 18, 2019
Application note How the SmartAmp Speaker Protection Algorithm Compensates the Effects of Series Aug. 08, 2018
Application note SmartPA Speaker Protection Algorithm Aug. 06, 2018
Technical article Smart speakers don’t have to sound as small as they are Jun. 04, 2018
Application note Smart Amp Tuning Guide Sep. 05, 2017
Application note Smart Amp Quick Start Guide Aug. 03, 2017
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) May 01, 2013

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

This board supports: TAS2555YZEVMTAS2557EVM and TAS2559EVM.

The Smart Amplifier Speaker Characterization Board, when used in conjunction with a supported TI Smart Amplifier and PurePath Console software, provides users the ability to measure speaker excursion, temperature and other parameters for (...)

  • Easily and quickly characterize speakers
  • Quick connection to TI Smart Amplifier EVMs
  • Microphone included for SPL measurements
  • Laser input for speaker excursion measurements
document-generic User guide
As a motherboard for smart amp solutions, this EVM allows for a modular approach to TI's low power audio/haptics portfolio. Enabled with each product's respective daughter card, the designer can evaluate their application and assess a wider range of possible solutions. Can moderate between (...)
  • Compatible with learning board
  • USB Bidirectonal, for digital input support and an ADC for analog audio source
  • Differential filter for performance characterization
  • Supports up to 8 devices
  • Feeds back modified signal to Ambient Echo Cancellation firmware
  • Waveform control for haptic response
document-generic User guide

The TAS2563YBGEVM-DC daughter card evaluation module (EVM) is designed to be used in conjunction with the PPC3-EVM-MB. This EVM provides the designer with the tools to integrate our SmartAmp portfolio into their application. The onboard DSP of the TAS2563 device enables the designer to characterize (...)

  • TAS2563 Digital input mono class-D audio amplifier with speaker IV sense and intergrated DSP
  • Mono or stereo evaluation
  • USB input
  • Compatible with Smart Amp characterization board
  • Interface using PurePath Console 3 Windows software
document-generic User guide
The TAS2X63EVM evaluation module (EVM) is designed to be used as stand-alone evalution tool, this EVM provides the designer with the tools to integrate TI's boosted smart amplifier TAS2563 into their system. This EVM provides mono speaker output using the TAS2563 Smart Amp. The designer can control (...)
  • Mono speaker evaluation
  • PPC3 integration
  • Connect multiple boards
  • USB input

Software development

PurePath™ Console graphical development suite for audio system design and development
PUREPATHCONSOLE PurePath™ Console is a highly integrated and easy-to-use audio development suite designed specifically to simplify the evaluation, configuration and debug process associated with the development of audio products. Watch how easy it is to use the PurePath™ Console 3 software.
PurePath Console’s (...)
Android and other drivers for the TAS25XX and TAS27XX series of Class-D amplifiers
TAS2XXX-DRIVERS — These Android drivers support TI’s low power digital input Class-D audio amplifier devices. The "Get software" buttons link to git.ti.com repositories for these open-source drivers.

Design tools & simulation

SLAM342.ZIP (89 KB) - IBIS Model
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
  • (...)

CAD/CAE symbols

Package Pins Download
DSBGA (YBG) 42 View options
VQFN-HR (RPP) 32 View options

Ordering & quality

Information included:
  • RoHS
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

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