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TAS2120 Datasheet(PDF) 1 Page - Texas Instruments |
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TAS2120 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 113 page  TAS2120 8.2W Mono Digital Input Class-D Speaker Amp with Integrated 14.75V Class- H Boost 1 Features • 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 2 Applications • Smart Speakers with Voice Assistance • Bluetooth and Wireless speakers • Building Automation • Tablets, Wearables • Laptop, Desktop Computers 3 Description 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 power using 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. Device Information PART NUMBER PACKAGE(1) PACKAGE SIZE (2) TAS2120 QFN 4mm × 3.5mm (1) For all available packages, see the orderable addendum at the end of the data sheet. (2) The package size (length × width) is a nominal value and includes pins, where applicable. Digital Audio Interface Boost Control Interface Clocking Device Protections Power Management Digital Core Monitor ADC VBAT, PVDD, and Temp Monitor Efficiency Algos Filters / Control VBAT PVDD TEMP PVDD OUT_P OUT_N SW DREG GREG SBCLK FSYNC SDIN SDOUT SEL4_ADR SEL5_CLH SEL3_SDA SEL2_SCL GND PGND BGND SDZ IRQZ Class-D Amp VBAT VDD IOVDD VBAT_SNS SEL1_I2C Functional block diagram TAS2120 SLASFC6A – AUGUST 2024 – REVISED AUGUST 2025 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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