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TAS2120
8.2 W, mono digital input class-D speaker amp with integrated 15 V class-H boost
Data sheet
TAS2120
- 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.
Technical documentation
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View all 4 | Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | TAS2120 8.2W Mono Digital Input Class-D Speaker Amp with Integrated 14.75V Class-H Boost datasheet (Rev. A) | PDF | HTML | 11 Aug 2025 |
| Application note | Efficiency Improvement With Y-Bridge in TAS2x20, TAS257x | PDF | HTML | 25 Mar 2025 | |
| Application note | TAS2x20 Design and Layout Guidelines | PDF | HTML | 30 Sep 2024 | |
| EVM User's guide | TAS2120 Evaluation Module User's Guide | PDF | HTML | 22 Aug 2024 |
Design & development
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Simulation tool
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VQFN-HR (RBG) | 26 | Ultra Librarian |
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