Texas Instruments TAS2552 4W Class-D audio power amplifier with speaker I-V sense and integrated Class-G boost converter TAS2552YFFT

The TAS2552YFFT is a 4W Class-D audio power amplifier designed for high efficiency and performance in audio applications. It features an integrated Class-G boost converter that enhances efficiency by adjusting the supply voltage based on output power requirements. The amplifier can deliver 4.0 W into an 8Oc load from a 4.2 V supply with a total harmonic distortion plus noise (THD+N) of 1%. It operates with an efficiency of up to 85% at rated power. This device supports various digital audio input formats, including I2S, Left-Justified, Right-Justified, DSP, PDM, and TDM, with input sample rates ranging from 8 kHz to 192 kHz. The TAS2552YFFT includes built-in speaker sense capabilities, allowing it to measure speaker current and voltage, as well as battery voltage, which aids in battery management. Additionally, it features an automatic gain control (AGC) function that adjusts the Class-D gain to limit battery current consumption and prevent distortion. The amplifier is packaged in a compact 30-ball WCSP (2.855 mm x 2.575 mm) and is suitable for applications in mobile phones, portable audio docks, tablets, and gaming devices. It operates within a temperature range of -40¬8C to 85¬8C, making it suitable for a variety of environments.