6.1W Digital Input Smart Amp with Integrated Speaker Protection, Advanced EQ and 11V 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) 5.5 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 open-in-new Find other Speaker amps


  • High performance Class-D amplifier
    • 6.1-W 1% THD+N (4 Ω at 3.6 V)
    • 5-W 1% THD+N (8 Ω at 3.6 V)
    • Boost bypass mode: 10 W(12 W) at 1% (10%) THD+ N (4 Ω,12 V)
  • 15-µVrms A-weighted idle channel noise
  • 112.5dB SNR at 1% THD+N (8 Ω)
  • 100dB PSRR with 200-mVPP ripple at 20Hz to 20 kHz
  • 83.5% Efficiency at 1 W (8 Ω, VBAT = 4.2 V)
  • < 1-µA HW Shutdown VBAT current
  • Speaker voltage and current sense
  • VBAT Tracking peak voltage limiter with brown-out prevention
  • Dedicated real-time DSP for speaker protection
    • Thermal and excursion protection
    • Detects leak and damaged speaker
  • 14.47-kHz to 96-kHz Sample rates
  • 2 PDM MIC Inputs
  • Flexible user interfaces
    • I2S/TDM: 8 Channels (32 bit / 96 kHz)
    • I2C: Selectable addresses
  • MCLK Free operation
  • Two 2.54 to 6.76 MHz PDM inputs
  • Advanced brown-out prevention
  • Power supplies
    • VBAT: 2.7 V to 5.5 V
    • VDD: 1.65 V to 1.95 V
    • IOVDD: 1.65 V to 3.6 V
  • Spread-spectrum low EMI mode
  • Thermal and overcurrent protection
  • 42-Ball, 0.4 mm pitch, DSBGA package

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The TAS2563 is a digital input Class-D audio amplifier optimized for efficiently driving high peak power into small loudspeaker applications. The Class-D amplifier is capable of delivering 6.1 W of peak power into a 4 Ω load at a battery voltage of 3.6 V. TAS2563 supports boost bypass mode (External PVDD mode) where it can achieve 12W at 10% THD+N (4 Ω at 12 V).

An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection algorithms to maximizes loudness while maintaining safe speaker conditions.

Integrated speaker voltage and current sense with internal protection algorithms provides for real time monitoring of the loudspeakers. This permits pushing peak SPL while keeping speakers in the safe operation area. A battery tracking peak voltage limiter with brown-out prevention optimizes amplifier headroom over the entire charge cycle preventing system shutdowns.

Up to eight devices can share a common bus via I2S/TDM + I2C interfaces.

The TAS2563 device is available in a 42-ball, 0.4 mm pitch DSBGA (YBG) for a compact PCB footprint.

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To request access to TAS2563 software and other design resources: Request now

Technical documentation

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Type Title Date
* Datasheet TAS2563 6.1-W Boosted Class-D Audio Amplifier With Integrated DSP And IV Sense datasheet (Rev. A) Aug. 21, 2019
Application notes Current and Voltage Sensing Accuracy and Linearity Jul. 21, 2020
Application notes Limitations of Capacitor only EMI Filters on Class-D Amplifiers Jul. 21, 2020
Application notes TAS2563 Device Configuration Overview Jul. 20, 2020
Application notes TAS2563 End Integration Guide Jul. 20, 2020
Application notes TAS2563 Smart Amp Characterization Guide Jul. 20, 2020
Application notes TAS2563 Quick Start Guide Jul. 13, 2020
Application notes Requesting Access to Audio Software Jun. 18, 2020
Technical articles How a look-ahead boost conquers battery-life challenges in speakers Feb. 20, 2020
Application notes TAS2562, TAS2563 Thermal Foldback Feature on SmartAmps Jan. 29, 2020
Application notes TAS2563 Schematic and Layout Guidelines Jan. 29, 2020
User guides SmartAmp Learning Board 2 User's Guide (Rev. A) Sep. 13, 2019
Application notes Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application notes Passive Component Selection Guide for Class-D Audio Amplifier Jun. 27, 2019
Application notes Battery Voltage Tracking Limiter and Brown-Out Protection Jun. 26, 2019
Application notes PCB Layout Guidelines for TAS2xxx Series Class-D Boosted Audio Amplifier Jun. 06, 2019
Application notes Benefits of Class-G and Class-H Boost in Audio Amplifiers Apr. 30, 2019
Application notes PLL and Clocking Configuration for Audio Devices Mar. 26, 2019
User guides TAS2563YBGEVM-DC Evaluation module user's guide Jan. 18, 2019
Application notes How the SmartAmp Speaker Protection Algorithm Compensates the Effects of Series Aug. 08, 2018
Application notes SmartPA Speaker Protection Algorithm Aug. 06, 2018
Technical articles Smart speakers don’t have to sound as small as they are Jun. 04, 2018
Technical articles Don’t limit your audio: how to achieve loud sound from a small speaker Dec. 18, 2017
Application notes Smart Amp Tuning Guide Sep. 05, 2017
Application notes Smart Amp Quick Start Guide Aug. 03, 2017
Application notes 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
To get started:

Step 1: Hardware
Order TAS2563YBGEVM-DC evaluation boardTAS2563 motherboardPP-SALB2-EVM learning board

Step 2: Software
Request PurePath Console 3 (PPC3) control GUI, be sure to indicate you are working with the TAS2563YBGEVM-DC

Step 3: Training
Review training video for speaker (...)
  • 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

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
  • (...)
Coefficient Calculator For Digital Biquad Filters
COEFFICIENT-CALC COEFFICIENT-CALC (TIBQ) calculates the coefficients for the digital filter biquad transfer function implemented in TI audio codecs. The characteristics of the digital filter are adjusted by selecting a filter type and moving a control point within a window that shows the transfer function gain and (...)

CAD/CAE symbols

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DSBGA (YBG) 42 View options

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