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TAS5731

ACTIVE

20-W stereo, 41-W mono, 8- to 21.5-V, digital input open loop Class-D audio amplifier w/ 2.1 support

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Data sheet

TAS5731

ACTIVE
Data sheet Order now

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.
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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

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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 (...)

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Application software & framework

PUREPATHCONSOLE — PurePath™ Console graphical development suite for audio system design and development

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 (...)
Supported products & hardware

Supported products & hardware

Products
Audio CODECs
TAC5111 — Low-power mono audio codec with 105dB dynamic range ADC and 114dB dynamic range DAC TAC5111-Q1 — Automotive low power mono audio codec with 102-dB dynamic range ADC, 106-dB DAC TAC5112 — Low-power stereo audio codec with 105dB dynamic range ADC and 114dB dynamic range DAC TAC5112-Q1 — Automotive low-power stereo audio codec with 102-dB dynamic range ADC, 106-dB DAC TAC5211 — High-performance mono audio codec with 119dB dynamic range ADC and 120dB dynamic range DAC TAC5212 — High-performance stereo audio codec with 119dB dynamic range ADC and 120dB dynamic range DAC TAC5212-Q1 — Automotive low-power stereo audio codec with 115-dB dynamic range ADC, 120-dB DAC TAC5311-Q1 — Automotive mono audio codec with 102-dB dynamic range ADC, 106-dB DAC, HV-input and diagnostics TAC5312-Q1 — Automotive stereo audio codec with 102-dB dynamic range ADC, 106-dB DAC, HV-input and diagnostics TAC5411-Q1 — Automotive mono audio codec with dynamic range of 110-dB ADC, 120-dB DAC, HV-input and diagnostics TAC5412-Q1 — Automotive stereo audio codec with 110-dB dynamic range ADC, 120-dB DAC, HV-input and diagnostics TLV320AIC3268 — TLV320AIC3268 Ultra Low Power Stereo Audio Codec
Audio DACs
PCM5142 — 2V RMS DIRECTPATH 112dB Audio Stereo DAC with PCM interface and fully programmable miniDSP PCM5242 — 4.2-VRMS DirectPath™, 32-bit, 384-kHz, 114-dB Audio Stereo DAC TAD5112 — Low-power stereo audio DAC with 110dB dynamic range, and headphone and line driver TAD5112-Q1 — Automotive low-power stereo audio DAC with 106-dB dynamic range TAD5212 — High-performance stereo audio DAC with 120dB dynamic range, and headphone and line driver TAD5212-Q1 — Automotive low-power stereo audio DAC with 120-dB dynamic range PCM1690 — 113dB SNR 8-Channel Audio DAC with Differential Outputs
Audio ADCs
PCM1841-Q1 — Automotive, quad-channel 32-bit 192-kHz audio analog-to-digital converter (ADC) PCM3120-Q1 — Automotive, stereo, 106-dB SNR, 768-kHz, low-power software-controlled audio ADC PCM3140-Q1 — Automotive, quad-channel 768-kHz Burr-Brown™ audio analog-to-digital converter (ADC) with 106-dB SNR PCM5120-Q1 — Automotive, stereo, 120-dB SNR, 768-kHz, low-power software-controlled audio ADC PCM5140-Q1 — Automotive, quad-channel 768-kHz Burr-Brown™ audio analog-to-digital converter (ADC) with 120-dB SNR PCM6120-Q1 — Automotive, stereo, 123-dB SNR, 768-kHz, low-power software-controlled audio ADC PCM6140-Q1 — Automotive, quad-channel 768-kHz Burr-Brown™ audio analog-to-digital converter (ADC) with 122-dB SNR PCMD3140-Q1 — Automotive, 127-dB SNR, 768-kHz, four-channel, PDM-input to TDM- or I²S-output converter PCMD3180-Q1 — Automotive, eight-channel pulse-density-modulation input to TDM or I²S output converter TAA5212 — High-performance stereo audio ADC with 119dB dynamic range and configurable digital filters TAA5412-Q1 — Automotive stereo audio ADC with 110-dB dynamic range, HV-input integrated HV-MICBIAS, diagnostics PCMD3180 — Eight-channel pulse-density-modulation input to TDM or I²S output converter PCMD3140 — Four-channel PDM-input to TDM- or I²S-output converter
Headphone amps
TPA6166A2 — 43-mW, stereo, analog input headphone amplifier with accessory detection
Speaker amps
TAS2110 — 6.1W mono digital input Class-D speaker amp with integrated 11V Class-H boost TAS2552 — 4-W, digital/analog input smart amp with I/V sense for speaker protection & integ. 8.5-V boost TAS2555 — 5.7-W, digital input smart amp with integrated speaker protection, advanced EQ & 8.5-V Class-H boost TAS2557 — 5.7-W, digital input smart amp with integrated speaker protection, advanced EQ & 8.5-V Class-H boost TAS2559 — 5.7-W, digital input smart amp with integrated speaker protection with stereo processing TAS2560 — 5.6-W digital input smart amp with I/V sense for speaker protection & integrated 8.5-V Class-H boost TAS2562 — 6.1-W, digital input smart amp with I/V sense for speaker protection & integrated 11-V Class-H boost TAS2563 — 6.1-W, digital input, smart amp & integrated speaker protection, advanced EQ & 11-V Class-H boost TAS2564 — 7-W, digital input smart amp with I/V sense for speaker protection & integrated 13-V Class-H boost TAS2572 — 6.6W digital-input smart amplifier with I/V sense and integrated 13V Class-H boost TAS2764 — 13-W, digital input, 2.3-V to 16-V smart amp I/V sense for speaker protection and multi-level supply TAS2770 — 20-W, digital input, 4.5- to 18-V smart amp with I/V sense for speaker protection TAS2780 — 25-W, digital input, 4.5-V to 24-V 6-A peak smart amp with I/V sense for speaker protection TAS2781 — 25 W, 4.5-V to 23-V, digital-input integrated-audio-processing speaker-protection class-D amplifier TAS5729MD — 12-W stereo, 24-W mono, 4.5- to 26.4-V supply, digital input open loop Class-D audio amplifier w/ HP TAS5731 — 20-W stereo, 41-W mono, 8- to 21.5-V, digital input open loop Class-D audio amplifier w/ 2.1 support TAS5733L — 10-W stereo, 20-W mono, 8- to 16.5-V, digital input open loop Class-D audio amplifier w/ EQ & AGL TAS5751M — 25-W stereo, 40-W mono, 8- to 26.4-V, digital input open loop Class-D audio amplifier w/ EQ & AGL TAS5754M — 40-W stereo, 61-W mono, 4.5- to 26.4-V supply, digital input Class-D audio amplifier TAS5756M — 30-W stereo, 40-W mono, 4.5- to 26.4-V supply, digital input Class-D audio amplifier TAS5760L — 21-W stereo, 42-W mono, 4.5- to 16.4-V supply, digital input Class-D audio amplifier TAS5760LD — 21-W stereo, 42-W mono, 4.5- to 16.4-V, digital input Class-D audio amplifier w/ integrated HP TAS5760M — 55-W stereo, 114-W mono, 4.5- to 26.4-V supply, digital input Class-D audio amplifier TAS5760M-Q1 — Automotive, 25-W, 2-ch, 4.5- to 26.4-V supply digital input Class-D audio amplifier TAS5760MD — 55-W stereo, 114-W mono, 4.5- to 26.4-V, digital input Class-D audio amplifier w/ integrated HP TAS5766M — 50-W stereo, 100-W mono, 4.5- to 26.4-V supply, digital input Class-D Smart Audio Amplifier TAS5780M — 20-W stereo, 40-W mono, 4.5- to 26.4-V supply, digital input Class-D audio amplifier TAS5782M — 20-W stereo, 40-W mono, 4.5- to 26.4-V, digital input Class-D Smart Audio Amplifier w/ processing TAS5805M — 23-W stereo, 45-W mono, 4.5- to 26.4-V supply, digital input Class-D audio amplifier w/ processing TAS5822M — 35-W, inductor-less, digital input, stereo, closed-loop Class-D amp with 96-kHz enhanced process TAS5825M — 38-W stereo, 65-W mono, 4.5- to 26-V, digital input Class-D Smart Audio Amplifier w/ 192kHz arch TAS5825P — 4.5V to 26.4V Class-H control digital-in Class-D audio amp with ultra-low idle & superior efficiency TAS6422-Q1 — Automotive, 75-W, 2-MHz, 2-ch 4.5- to 26.4-V digital input Class-D audio amplifier w/ load dump TAS6424-Q1 — Automotive, 75-W, 2-MHz, 4-ch, 4.5- to 26.4-V digital input Class-D audio amplifier TAS6424E-Q1 — Automotive, 75-W, 2-MHz, quad-channel, 4.5- to 26.4-V digital input Class-D audio amplifier TAS6424L-Q1 — Automotive, 27-W, 2-MHz, 4-ch 4.5- to 18-V digital input Class-D audio amplifier w/ load dump TPA6404-Q1 — Automotive, 45-W, 2-MHz, 4-ch 4.5- to 18-V supply analog input Class-D audio amplifier w/ load dump
Piezo speaker drivers/receivers
DRV5825P — 4.5-V to 26.4-V, 7.5-A stereo, 15-A mono, digital input, Piezo driver with smart I/V protection
Hardware development
Evaluation board
ADC3120EVM-PDK — TLV320ADC3120 evaluation module for stereo-channel, 768-kHz, Burr-Brown™ audio ADC with 106-dB SNR ADC3120Q1EVM-PDK — PCM3120-Q1 evaluation module for stereo, 768-kHz, audio analog-to-digital converter with 106-dB SNR ADC5120EVM-PDK — TLV320ADC5120 evaluation module for stereo-channel, 768-kHz, Burr-Brown™ audio ADC with 120-dB SNR ADC5120Q1EVM-PDK — PCM5120-Q1 evaluation module for stereo, 768-kHz, audio analog-to-digital converter with 120-dB SNR ADC6120EVM-PDK — TLV320ADC6120 evaluation module for stereo-channel, 768-kHz, Burr-Brown™ audio ADC with 123-dB SNR ADC6120Q1EVM-PDK — PCM6120-Q1 evaluation module for stereo, 768-kHz, audio analog-to-digital converter with 123-dB SNR PCM1809EVM — PCM1809 evaluation module PCMD3140Q1EVM-PDK — PCMD3140-Q1 evaluation module for four-channel, PDM-input to TDM- or I²S-output converter PP-SALB2-EVM — PP-SALB2-EVM Smart amp speaker characterization board evaluation module (Learning Board 2) TAS2555YZEVM — TAS2555 5.7W Class-D Audio Amplifier Evaluation Module TAS2557EVM — TAS2557 5.7-W Class-D Audio Amplifier Evaluation Module with Class-H Boost and Speaker Sense TAS2559EVM — TAS2559 5.7-W Class-D Audio Amplifier Evaluation Module TAS2560EVM — TAS2560 5.6W Class-D Audio Amplifier Evaluation Module TAS2770EVM — TAS2770EVM Mono, Digital Input, Class-D, IV Sense Audio Amplifier Evaluation Module for QFN Package TAS2781EVM — TAS2781 evaluation module for mono Class-D audio amplifier with digital input and speaker IV sense TAS3251EVM — TAS3251 175W Stereo / 350W Mono Ultra-HD Digital-In Class-D Evaluation Module TAS5721EVM — TAS5721 Evaluation Module TAS5733LEVM — TAS5733L Digital Input, Open-Loop Class-D Audio Amplifier Evaluation Module TAS5751MEVM — TAS5751M Digital Input, Open Loop Class-D Audio Amplifier Evaluation Module TAS5754MDCAEVM — TAS5754M 30-W Digital I2S Input, Closed-Loop Audio Class-D Amplifier Evaluation Module TAS5756MDCAEVM — TAS5756M 30-W Digital I2S Input, Closed-Loop Audio Class-D Amplifier Evaluation Module TAS5760XXEVM — TAS5760M/MD/L/LD Evaluation Module TAS5782MEVM — TAS5782M Digital Input Closed-Loop Class-D Audio Amplifier with 96-kHz Processing Evaluation Module TAS5805MEVM — TAS5805M Digital Input Stereo Closed-Loop Class-D Audio Amplifier with Enhanced Processing EVM TAS5825MEVM — Digital-input closed-loop class-D audio amp with 96kHz/192kHz extended processing evaluation module
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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
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Simulation model

TAS5731 IBIS Model

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

TAS5731 Gerber (Rev. A)

SLOC258A.ZIP (907 KB)
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Simulation tool

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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 (...)
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HTQFP (PHP) 48 Ultra Librarian
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