TAS2521IRGET

Overview

The TAS2521IRGET is a digital input Class-D speaker amplifier manufactured by Texas Instruments, featuring an embedded miniDSP and a mono headphone amplifier. It supports 24-bit digital I2S data for mono playback and drives speakers up to 4 ohms. The device accepts multiple audio interfaces including I2S, left/right-aligned, DSP, and TDM modes with sampling rates from 8kHz to 192kHz. Control is managed via I2C or SPI buses. Power supplies include AVDD (1.5V–1.95V), DVDD (1.65V–1.95V), IOVDD (1.1V–3.6V), and SPKVDD (2.7V–5.5V). It utilizes a 24-pin QFN package measuring 4mm x 4mm.

Feature Summary

• Integrates a programmable embedded miniDSP for flexible signal processing functions such as equalization and dynamic range compression.
• Supports multiple digital audio interface protocols including I2S, Left/Right Aligned, DSP mode, and TDM for versatile system integration.
• Combines a Class-D BTL speaker driver with a dedicated mono headphone amplifier in a single low-power solution.
• Includes integrated power management features such as an LDO and power-on reset to reduce external component count.

Applications

• Portable audio devices requiring extended battery life and high-quality sound output
• White home appliances utilizing voice interaction or audio prompts
• Portable navigation systems needing clear speech playback

Procurement Notes

Verify the specific suffix IRGET against the manufacturer's current datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with the target system's digital audio interface standards and control bus requirements before finalizing procurement. Cross-reference the ordering information section of the official documentation to validate availability and manufacturing status.

Selection Notes

Select this component when a digital input amplifier with built-in DSP capabilities is required for space-constrained portable designs. The 24-pin QFN footprint suits compact form factors. Verify that the host processor can support the necessary I2S or TDM clocking schemes and that the supply voltage rails align with the specified AVDD, DVDD, and SPKVDD ranges for optimal performance.

Part Context

This part belongs to the TAS2521 family of digital input speaker amplifiers from Texas Instruments. It is designed for applications demanding high efficiency and advanced audio processing within a small footprint. The device integrates both speaker and headphone driving capabilities, distinguishing it from simpler amplifier-only solutions in the same product line.

Replacement Considerations

TAS2521IRGER is a verified alternative variant within the same family, differing primarily in packaging configuration while maintaining identical electrical and functional specifications.