TAS2521IRGER

Overview

The TAS2521IRGER is a single-channel Class-D digital input speaker amplifier manufactured by Texas Instruments. It features an embedded miniDSP for signal processing and supports analog inputs alongside digital interfaces including I2S, left/right-aligned, DSP, and TDM formats with sampling rates from 8kHz to 192kHz. The device delivers 2W output into a 4-ohm load with a THD+N of -78.2 dB at a gain of 4 V/V. It operates on AVDD voltages between 1.5V and 1.95V, functions within a temperature range of -40°C to +85°C, and is housed in a 24-pin VQFN package.

Feature Summary

• Integrates a programmable embedded miniDSP enabling flexible audio signal processing such as equalization and dynamic range compression.
• Supports multiple digital audio interface protocols including I2S, left/right-aligned, DSP, and TDM modes.
• Combines a mono Class-D BTL speaker driver with a dedicated mono headphone amplifier in a single solution.

Applications

• Portable audio devices requiring high integration and low power consumption
• White home appliances utilizing audio prompts or voice interaction
• Portable navigation equipment needing clear audio output

Procurement Notes

Verify the specific suffix IRGER against the manufacturer's official datasheet to confirm pinout, thermal characteristics, and RoHS compliance status. Ensure that the required analog and digital supply voltage levels match the system design constraints before finalizing procurement. Cross-reference the package dimensions with PCB layout guidelines to ensure proper soldering and thermal management during assembly.

Selection Notes

Select this component when a compact, single-channel solution is needed for driving speakers directly from digital sources. It is suitable for designs requiring integrated DSP capabilities without external processors. Consider the 24-pin VQFN package size for space-constrained portable applications. Verify compatibility with the host processor's digital audio interface standards and sampling rate requirements.

Part Context

This part belongs to the Texas Instruments TAS2521 series of digital input amplifiers. It is designed for portable electronics where board space and power efficiency are critical. The series integrates advanced audio processing features typically found in larger discrete solutions, allowing for simplified system architecture in consumer audio products.

Replacement Considerations

Consult the official TI datasheet for direct pin-to-pin compatible alternatives within the same family. Verify that any substitute maintains the required 24-pin VQFN footprint and electrical specifications for AVDD and SPKVDD rails.

FAQ

What digital audio interfaces does the TAS2521 support?

The TAS2521 supports I2S, left-aligned, right-aligned, DSP, and TDM digital audio interfaces.

Can the embedded miniDSP be customized?

Yes, the embedded miniDSP is instruction-programmable, allowing for customization of audio effects like equalization and dynamic range compression.