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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 Control interface Software Output power (W) 20 Power stage supply (max) (V) 21 Power stage supply (min) (V) 8 THD + N at 1 kHz (%) 0.03 Load (min) (Ω) 2 Analog supply voltage (min) (V) 3 Analog supply voltage (max) (V) 3.6 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Digital Input Architecture Class-D Speaker channels (max) Stereo Control interface Software Output power (W) 20 Power stage supply (max) (V) 21 Power stage supply (min) (V) 8 THD + N at 1 kHz (%) 0.03 Load (min) (Ω) 2 Analog supply voltage (min) (V) 3 Analog supply voltage (max) (V) 3.6 Rating Catalog Operating temperature range (°C) -40 to 85
HTQFP (PHP) 48 81 mm² (9 mm × 9 mm)
  • 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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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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Top documentation Type Title Format options Date
* Data sheet 20-W STEREO DIGITAL AUDIO POWER AMPLIFIER WITH DSP AND 2.1 MODE datasheet (Rev. A) Sep 25, 2013
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun 27, 2019
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) May 1, 2013

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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.

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

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SLOC257 — TAS57X1 GUI TAS57x1_v2.1_Build_8

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TAS5731 IBIS Model

SLOM267.ZIP (40 KB) - IBIS model
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