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.