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TAS2120

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8.2 W, mono digital input class-D speaker amp with integrated 15 V class-H boost

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Data sheet

TAS2120

ACTIVE
Data sheet Order now

Product details

Audio input type Digital Input Architecture Class-D Boosted Speaker channels (max) Mono Control interface Hardware, I2C Output power (W) 8 Power stage supply (max) (V) 14.4 Power stage supply (min) (V) 5.5 THD + N at 1 kHz (%) 0.01 Load (min) (Ω) 3.2 Analog supply voltage (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
Audio input type Digital Input Architecture Class-D Boosted Speaker channels (max) Mono Control interface Hardware, I2C Output power (W) 8 Power stage supply (max) (V) 14.4 Power stage supply (min) (V) 5.5 THD + N at 1 kHz (%) 0.01 Load (min) (Ω) 3.2 Analog supply voltage (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN-HR (RBG) 26 14 mm² (3.5 mm × 4 mm)
  • Powerful Class-D amplifier
    • 8.2W output power (rms) @1% THD+N
    • 14.75V boost with 5.1A max current limit
  • Best-in-class efficiency
    • Up to 91% efficiency @ 1W, 8Ω load
    • 14.7mW idle channel power, noise gate off
    • 5.3mW idle channel power, noise gate on
    • Integrated 1.8V VDD Y-bridge
    • Advanced 33mV step size class-H boost
  • High performance audio channel
    • 4.2µV A-wt. idle channel noise
    • 114.4dB Dynamic Range
    • -90dB THD+N
    • Low EMI performance with ERC and SSM
    • < 1µs chip to chip group delay matching
  • Advanced integrated features
    • Signal detection high efficiency modes
    • High accuracy supply voltage monitor & temp sensor
    • Programmable battery current limit at 39mA step size
    • Boost sharing between two devices
    • External Class-H Boost control algorithm
  • Ease of use features
    • HW pin control or I2C based control
    • Internal boost or External PVDD supply
    • Clock based power up/down
    • Auto clock rate detection: 16 to 192kHz
    • MCLK free operation
    • Thermal and over current protection
  • Power Supplies and user interface
    • VBAT: 2.5V to 5.5V
    • VBAT_SNS: 2.5V to 10.0V
    • VDD: 1.65V to 1.95V
    • IOVDD: 1.8V or 3.3V
    • I2S/TDM: 8 channels
  • 26-Pin, 0.4mm Pitch, QFN package
  • Powerful Class-D amplifier
    • 8.2W output power (rms) @1% THD+N
    • 14.75V boost with 5.1A max current limit
  • Best-in-class efficiency
    • Up to 91% efficiency @ 1W, 8Ω load
    • 14.7mW idle channel power, noise gate off
    • 5.3mW idle channel power, noise gate on
    • Integrated 1.8V VDD Y-bridge
    • Advanced 33mV step size class-H boost
  • High performance audio channel
    • 4.2µV A-wt. idle channel noise
    • 114.4dB Dynamic Range
    • -90dB THD+N
    • Low EMI performance with ERC and SSM
    • < 1µs chip to chip group delay matching
  • Advanced integrated features
    • Signal detection high efficiency modes
    • High accuracy supply voltage monitor & temp sensor
    • Programmable battery current limit at 39mA step size
    • Boost sharing between two devices
    • External Class-H Boost control algorithm
  • Ease of use features
    • HW pin control or I2C based control
    • Internal boost or External PVDD supply
    • Clock based power up/down
    • Auto clock rate detection: 16 to 192kHz
    • MCLK free operation
    • Thermal and over current protection
  • Power Supplies and user interface
    • VBAT: 2.5V to 5.5V
    • VBAT_SNS: 2.5V to 10.0V
    • VDD: 1.65V to 1.95V
    • IOVDD: 1.8V or 3.3V
    • I2S/TDM: 8 channels
  • 26-Pin, 0.4mm Pitch, QFN package

The TAS2120 is a mono, digital input Class-D audio amplifier with an integrated Boost for higher power delivery in battery-operated systems.

TAS2120 is optimized to deliver best battery life for real-use cases of music playback and voice calls. Advanced efficiency optimization features like Y-bridge, and other algorithms enable the device to produce best-in-class efficiency across all power regions of operation. The Class-D amplifier is capable of delivering 8.2W output powerusing integrated Class-H Boost.

TAS2120 device supports look-ahead algorithm based optimum boost voltage levels to match the output of audio signal. This provides all the power needed for peak output while significantly reducing the average power consumption.

Up to four devices can share a common bus via I2S/TDM and I2C interfaces. TAS2120 also supports HW pin based pre-defined controls that can configure the device for desired mode of operation without requiring any I2C controls.

The TAS2120 is a mono, digital input Class-D audio amplifier with an integrated Boost for higher power delivery in battery-operated systems.

TAS2120 is optimized to deliver best battery life for real-use cases of music playback and voice calls. Advanced efficiency optimization features like Y-bridge, and other algorithms enable the device to produce best-in-class efficiency across all power regions of operation. The Class-D amplifier is capable of delivering 8.2W output powerusing integrated Class-H Boost.

TAS2120 device supports look-ahead algorithm based optimum boost voltage levels to match the output of audio signal. This provides all the power needed for peak output while significantly reducing the average power consumption.

Up to four devices can share a common bus via I2S/TDM and I2C interfaces. TAS2120 also supports HW pin based pre-defined controls that can configure the device for desired mode of operation without requiring any I2C controls.
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Technical documentation

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* Data sheet TAS2120 8.2W Mono Digital Input Class-D Speaker Amp with Integrated 14.75V Class-H Boost datasheet (Rev. A) PDF | HTML Aug 11, 2025
Application note Class-D Amplifiers Driving High-Inductance Loads in Speakers and Haptics Coils PDF | HTML Jun 24, 2026
Application note TAS2118/TAS2020/TAS2120/TAS2320 2-Layer PCB Design Guidelines PDF | HTML Jun 16, 2026
Application brief Speaker, TV, Soundbar Audio Amplifiers: Features, Benefits, and Selection Guide PDF | HTML Mar 11, 2026
Application note TAS2x20: Extending Battery Life in Portable Audio Applications PDF | HTML Oct 30, 2025
Application note TAS2120 and TAS2320 Shared Boost Feature PDF | HTML Oct 2, 2025
Application brief The Future Speaks: Advancing Intelligent Robots With Texas Instruments' Audio Amplifiers PDF | HTML Sep 22, 2025
Application note Efficiency Improvement With Y-Bridge in TAS2x20, TAS257x (Rev. A) PDF | HTML Sep 18, 2025
Application note TAS2x20 Design and Layout Guidelines PDF | HTML Sep 30, 2024

Design & development

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Evaluation board

TAS2120EVM — TAS2120 evaluation module

The TAS2120EVM has been designed to demonstrate the performance of TAS2120 in a mono configuration. The tool utilizes the AC-MB to provide a USB to audio interface to the evaluation module. Up to four devices can share a common bus through I2S/TDM and I2C interfaces. The TAS2120EVM supports a (...)
User guide: PDF | HTML
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TAS2X20-GUI — PurePath™ Console 3 Apps for TAS2x20 EVM

PurePath™ Console 3 Apps for TAS2x20 EVM
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VQFN-HR (RBG) 26 Ultra Librarian
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