TAS2020 datasheet(68/79 Pages) TI2

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8 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification, and

TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining

suitability of components for their purposes. Customers should validate and test their design

implementation to confirm system functionality.

8.1 Application Information

TAS2020 is a mono channel digital-in Class-D amplifier with battery voltage and temperature monitoring

capabilities. I2S audio data is supplied by host processor via SDIN data port along with the bit clock and frame

sync signals. I2C bus is used for configuration and control.

The device needs external power supply voltage rails of PVDD: 2.5V to 5.5V, VDD : 1.65V to 1.95V and IOVDD:

1.8V or 3.3V for operation.

PurePathTM Console 3 (PPC3) software is the recommended tool to configure the device, and PPC3 enables

optimization of device performance parameters depending on different application scenarios.

8.2 Typical Application

Diagrams below show typical application connections for TAS2020 device. SEL1_I2C pin is used for HW Mode

selection or I2C Mode selection of the Device.

System can use same 1.8V supply source to power the IOVDD and VDD if required. The decoupling caps C2

and C3 should be placed close to the device pins.

VDD, PVDD power rails are critical for device performance and wide trace should be used from the source

PMIC to these pins to minimize parasitic inductance. Supply ripple should be kept at minimum for these rails and

should be connected to common supply planes.

Errata: Additional 2mA to 3mA current consumption expected if IRQZ singal is pulled high. Read more details in

What to Do and What Not to Do section.

TAS2020

SLASFD4A – AUGUST 2024 – REVISED JULY 2026

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