Product details

Audio input type Digital Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 21 Power stage supply (min) (V) 8 Load (min) (Ω) 2 Output power (W) 20 SNR (dB) 106 THD + N at 1 kHz (%) 0.03 Iq (typ) (mA) 26 Control interface Software Closed/open loop Open Analog supply (min) (V) 3 Analog supply voltage (max) (V) 3.6 Sampling rate (max) (kHz) 48 Operating temperature range (°C) -40 to 85
Audio input type Digital Input Architecture Class-D Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 21 Power stage supply (min) (V) 8 Load (min) (Ω) 2 Output power (W) 20 SNR (dB) 106 THD + N at 1 kHz (%) 0.03 Iq (typ) (mA) 26 Control interface Software Closed/open loop Open Analog supply (min) (V) 3 Analog supply voltage (max) (V) 3.6 Sampling rate (max) (kHz) 48 Operating temperature range (°C) -40 to 85
HTQFP (PHP) 48 81 mm² 9 x 9
  • 2-Ch I2S Input; 8-kHz to 48-kHz fS
  • 20-W Stereo, 8 Ω/18 V (THD+N = 10%)
  • Up to 90% Efficient Operation
  • Wide 8-V to- 21-V Supply Range;
    3.3-V Digital Supply
  • Single-Device 2.1 Support (2 × SE + 1 × BTL)
  • 70-mΩ RDS(on) Device That Can Support
    2-Ω SE and 4-Ω BTL Modes
    • 12 V / 2 Ω / 8 W With SE mode
    • 12 V / 4 Ω / 15 W With BTL mode
  • Speaker EQ (8 BQ per Channel), 2× DRCs
  • P2P Compatible With the TAS5727
  • Benefits
    • Direct Connect to Digital Processor
    • High Output Power From a Standard Supply
    • Eliminates Need for Heat Sink
    • Advanced Processing Improves Audio Experience
  • 2-Ch I2S Input; 8-kHz to 48-kHz fS
  • 20-W Stereo, 8 Ω/18 V (THD+N = 10%)
  • Up to 90% Efficient Operation
  • Wide 8-V to- 21-V Supply Range;
    3.3-V Digital Supply
  • Single-Device 2.1 Support (2 × SE + 1 × BTL)
  • 70-mΩ RDS(on) Device That Can Support
    2-Ω SE and 4-Ω BTL Modes
    • 12 V / 2 Ω / 8 W With SE mode
    • 12 V / 4 Ω / 15 W With BTL mode
  • Speaker EQ (8 BQ per Channel), 2× DRCs
  • P2P Compatible With the TAS5727
  • Benefits
    • Direct Connect to Digital Processor
    • High Output Power From a Standard Supply
    • Eliminates Need for Heat Sink
    • Advanced Processing Improves Audio Experience

The TAS5731 is a 20-W, efficient, digital-audio stereo power amplifier for driving stereo bridge-tied speakers. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors and MPEG decoders. The device accepts a wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers.

The TAS5731 is a slave-only device receiving all clocks from external sources. The TAS5731 operates with a PWM carrier between a 384-kHz switching rate and a 352-kHz switching rate, depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.

The TAS5731 is a 20-W, efficient, digital-audio stereo power amplifier for driving stereo bridge-tied speakers. One serial data input allows processing of up to two discrete audio channels and seamless integration to most digital audio processors and MPEG decoders. The device accepts a wide range of input data and data rates. A fully programmable data path routes these channels to the internal speaker drivers.

The TAS5731 is a slave-only device receiving all clocks from external sources. The TAS5731 operates with a PWM carrier between a 384-kHz switching rate and a 352-kHz switching rate, depending on the input sample rate. Oversampling combined with a fourth-order noise shaper provides a flat noise floor and excellent dynamic range from 20 Hz to 20 kHz.

Download View video with transcript Video
Information

Request more information

PurePath™ Console, TAS5731 GUI and other design resources are available. Request now

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device
TAS5711 ACTIVE 20-W stereo, 8- to 26-V, digital input, open loop Class-D audio amplifier w/ EQ, DRC, 2.1 support 40-W Stereo (2.1) Class-D Audio Amp w/ Audio Processing
TAS5727 ACTIVE 25-W mono, 8- to 26-V supply, digital input, open loop Class-D audio amplifier w/ speaker EQ & DRC 50-W Stereo (BTL) Class-D Audio Amp w/ Audio Processing

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 5
Type Title Date
* Data sheet 20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH DSP AND 2.1 MODE datasheet (Rev. A) 25 Sep 2013
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
EVM User's guide TAS5731 EVM Users Guide (Rev. A) 27 Aug 2014
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

PUREPATH-CMBEVM — PurePath™ Console motherboard for audio system design and 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 (...)

Not available on TI.com
GUI for evaluation module (EVM)

SLOC257 TAS57X1 GUI TAS57x1_v2.1_Build_8

Supported products & hardware

Supported products & hardware

Products
Speaker amps
TAS5731 20-W stereo, 41-W mono, 8- to 21.5-V, digital input open loop Class-D audio amplifier w/ 2.1 support
Hardware development
Evaluation board
TAS5755MEVM TAS5755M Evaluation Module
Simulation model

TAS5731 IBIS Model

SLOM267.ZIP (40 KB) - IBIS Model
Gerber file

TAS5731 Gerber (Rev. A)

SLOC258A.ZIP (907 KB)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

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 (...)
Package Pins Download
HTQFP (PHP) 48 View options

Ordering & quality

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

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

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos