TAS5825MRHBT

Overview

The TAS5825MRHBT is a stereo, inductor-less, digital-input, closed-loop Class-D audio amplifier manufactured by Texas Instruments. It features integrated audio processing supporting 96-kHz and 192-kHz sampling rates. The device operates on a supply voltage range of 4.5 V to 26.4 V and delivers up to 38 W of stereo output power. It utilizes a 32-pin HVQCCN (VQFN) package with dimensions of 5 mm x 5 mm. The component supports I2S, LJ, RJ, TDM, and SDOUT interfaces, along with a 3-wire digital audio interface without requiring MCLK.

Feature Summary

• Integrates a powerful DSP kernel for advanced audio processing including dynamic EQ, bass enhancement, and intelligent amplifier algorithms for thermal and offset protection.
• Features an automatic sample rate converter that detects input changes and converts them to the target DSP rate to prevent audio artifacts.
• Provides flexible audio input/output options supporting multiple sampling rates and various digital audio interface protocols.
• Includes built-in self-protection mechanisms such as overcurrent error, overheat warning/error, and under/over-voltage lockout.

Applications

• Digital television, HDTV, UHD, and multimedia displays
• Soundbars, subwoofers, laptop, and PC speakers
• Wireless and Bluetooth speakers
• Smart speakers with voice assistants

Procurement Notes

Verify the specific suffix RHBT corresponds to the required tape-and-reel packaging configuration. Confirm the operating temperature range matches the -25°C to 85°C specification. Ensure compatibility with the 32-VQFN footprint during PCB layout. Check RoHS compliance status against current regulatory requirements before finalizing procurement.

Selection Notes

Select this component when designing systems requiring high-efficiency Class-D amplification with integrated digital signal processing. It is suitable for applications needing inductor-less designs to reduce passive component count. Consider its support for high-resolution audio sampling rates if Hi-Res audio fidelity is required. Evaluate the need for closed-loop control to minimize external feedback components.

Part Context

This part belongs to the TAS5825M family of digital audio amplifiers from Texas Instruments. It is designed to replace traditional analog amplifier solutions by integrating DAC and Class-D stages into a single chip. This integration significantly reduces PCB area and simplifies circuit design compared to open-loop devices or separate codec-amplifier combinations.

Replacement Considerations

TAS5825P and TAS5825PRHBR are listed as similar parts within the same manufacturer's portfolio. Verify pinout and functional equivalence before substitution. Note that alternative packages may require schematic and layout adjustments.