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TAS2573

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Data sheet

TAS2573

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Data sheet Order now

Product details

Rating Catalog Operating temperature range (°C) to
Rating Catalog Operating temperature range (°C) to
DSBGA (YCF) 48 6.926265 mm² (2.235 mm × 3.099 mm)
  • Powerful class-D amplifier
    • 8.5W 1% THD+N (8Ω at 4.4V)
    • 8.8W 1% THD+N (4Ω at 4.4V)
    • 15V boost with 5.1A max current limit
  • Best in class efficiency
    • Upto 89% efficiency at system level for 8Ω load
    • 19mW idle channel power in active mode
    • 5.5mW idle channel power in Noise gate mode
    • Integrated 1.8V Y-bridge and 33mV step class-H
  • High performance audio channel
    • 4.2µV A-wt. idle channel noise
    • 114dB Dynamic Range
    • -90dB THDN
    • Low EMI performance with ERC and SSM
    • < 1µs chip to chip group delay matching
  • Advanced integrated features
    • Speaker Protection and Advanced Battery Guard with integrated IV sense
    • Audio tuning with EQ, DRC, DEQ
    • Speaker Rattle Noise Suppression algorithm
    • Signal detection high efficiency modes
    • High accuracy voltage monitor & temp sensor
  • Ease of use features
    • 1cell, 2cell and 3cell Li-ion battery support
    • Clock based power up/down
    • Auto clock rate detection: 16kHz to 192kHz
    • External 14V PVDD supply support
    • MCLK free operation
    • Thermal and over current protection
    • Programmable drive strength IO buffers
  • Power Supplies and user interface
    • VBAT: 2.0V to 5.5V
    • VDD: 1.65V to 1.95V
    • IOVDD: 1.2V or 1.8V
    • VBAT_SNS: 2.0V to 10.0V
    • PVDD: 2.5V to 14V (Ext. PVDD mode)
    • I2S/TDM: 8 channels
    • I2C: 4 selectable addresses
  • 48-Ball, 0.35mm Pitch, WCSP package
  • Powerful class-D amplifier
    • 8.5W 1% THD+N (8Ω at 4.4V)
    • 8.8W 1% THD+N (4Ω at 4.4V)
    • 15V boost with 5.1A max current limit
  • Best in class efficiency
    • Upto 89% efficiency at system level for 8Ω load
    • 19mW idle channel power in active mode
    • 5.5mW idle channel power in Noise gate mode
    • Integrated 1.8V Y-bridge and 33mV step class-H
  • High performance audio channel
    • 4.2µV A-wt. idle channel noise
    • 114dB Dynamic Range
    • -90dB THDN
    • Low EMI performance with ERC and SSM
    • < 1µs chip to chip group delay matching
  • Advanced integrated features
    • Speaker Protection and Advanced Battery Guard with integrated IV sense
    • Audio tuning with EQ, DRC, DEQ
    • Speaker Rattle Noise Suppression algorithm
    • Signal detection high efficiency modes
    • High accuracy voltage monitor & temp sensor
  • Ease of use features
    • 1cell, 2cell and 3cell Li-ion battery support
    • Clock based power up/down
    • Auto clock rate detection: 16kHz to 192kHz
    • External 14V PVDD supply support
    • MCLK free operation
    • Thermal and over current protection
    • Programmable drive strength IO buffers
  • Power Supplies and user interface
    • VBAT: 2.0V to 5.5V
    • VDD: 1.65V to 1.95V
    • IOVDD: 1.2V or 1.8V
    • VBAT_SNS: 2.0V to 10.0V
    • PVDD: 2.5V to 14V (Ext. PVDD mode)
    • I2S/TDM: 8 channels
    • I2C: 4 selectable addresses
  • 48-Ball, 0.35mm Pitch, WCSP package

The TAS2573 is a digital input Class-D amplifier with an integrated Boost for higher power delivery in battery-operated systems. The device has integrated IV-Sense for real-time monitoring of the loudspeakers. An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection and audio tuning algorithms to enable high output SPL while keeping speakers in a safe operating region.

The device is optimized for delivering the best battery life with advanced efficiency optimization features like Class-H, Y-bridge and DSP algorithms. An advanced battery guard algorithm on the DSP manages peak output power delivery while avoiding any audio distortion when battery capacity is depleting. This algorithm is supported using a local battery voltage monitor ADC.

Up to four TAS2573 amps can share a common bus via I2S/TDM + I2C interfaces.

The TAS2573 is a digital input Class-D amplifier with an integrated Boost for higher power delivery in battery-operated systems. The device has integrated IV-Sense for real-time monitoring of the loudspeakers. An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection and audio tuning algorithms to enable high output SPL while keeping speakers in a safe operating region.

The device is optimized for delivering the best battery life with advanced efficiency optimization features like Class-H, Y-bridge and DSP algorithms. An advanced battery guard algorithm on the DSP manages peak output power delivery while avoiding any audio distortion when battery capacity is depleting. This algorithm is supported using a local battery voltage monitor ADC.

Up to four TAS2573 amps can share a common bus via I2S/TDM + I2C interfaces.

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Technical documentation

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* Data sheet TAS2573 Boosted Class-D Audio Amplifier with Integrated DSP and IV Sense datasheet PDF | HTML Oct 1, 2026
Application note TAS2573 Design and Layout Guidelines PDF | HTML Jun 19, 2026
EVM User's guide TAS2573 Evaluation Module PDF | HTML May 18, 2026

Design & development

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

Evaluation board

AA-EVM-MB — Audio amplifiers motherboard evaluation module

The AA-EVM-MB has been designed to control Texas Instruments compatible Audio Amplifier EVMs. AA-EVM-MB offers a USB interface to connect to a PC running PurePathConsole software and standard USB audio interface.
User guide: PDF | HTML
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Evaluation board

TAS2573EVM — TAS2573 evaluation module

The TAS2573 evaluation module (EVM) is designed to demonstrate the performance of TAS2573 in a dual-mono configuration. This tool uses the AC-MB or AA-EVM-MB motherboard to provide an interface and supply voltages to the EVM daughter card. Up to four devices can share a common bus through I2S/TDM (...)
User guide: PDF | HTML
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GUI for evaluation module (EVM)

TAS2573-GUI — TAS2573 PurePath™ Console 3 files

TAS2573 PurePath™ Console 3 files
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
DSBGA (YCF) 48 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

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