TAS5828MDADR

Overview

The TAS5828MDADR is a stereo, high-performance closed-loop Class-D audio amplifier with an integrated digital audio processor. It supports up to 192kHz sampling rates and features the Hybrid-Pro algorithm for envelope tracking. The device operates on a PVDD supply of 4.5V to 26.4V and DVDD/I/O of 1.62V to 3.63V. It delivers up to 55W per channel in BTL mode at 4Ω/21V (THD+N=1%) or 84W in PBTL mode at 3Ω/24V. Key electrical parameters include THD+N ≤0.08% at 1W, SNR ≥106dB, and quiescent current of 39mA.

Feature Summary

• Integrates a proprietary Hybrid-Pro algorithm that detects upcoming audio power demand to provide PWM control signals for DC-DC converters, preventing clipping via predictable envelope tracking.
• Supports flexible digital audio interfaces including I2S, LJ, RJ, TDM, and 3-wire modes without requiring MCLK, accommodating sample rates from 32kHz to 192kHz.
• Offers dual control modes: Software Control Mode via I2C for full DSP configuration, and Hardware Control Mode using pin configurations for switching frequency and gain settings.
• Includes comprehensive self-protection mechanisms such as over-current error, cycle-by-cycle current limit, over-temperature warning/error, and under/over-voltage lock-out.

Applications

• Battery-powered speakers
• Wireless and Bluetooth speakers
• Soundbars and subwoofers
• Heat or efficiency sensitive audio systems

Procurement Notes

Verify the specific ordering suffix 'ADR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the component meets RoHS3 compliance standards and check the Moisture Sensitivity Level (MSL) rating to ensure proper storage and handling procedures are followed during manufacturing.

Selection Notes

Select this component when system design requires a closed-loop Class-D amplifier with integrated DSP capabilities to reduce external passive components. It is suitable for applications needing high power density and efficient thermal management. Ensure the host controller can support either I2C software configuration or direct hardware pin selection based on integration complexity.

Part Context

This part belongs to the Texas Instruments TAS5828M family of high-efficiency digital input amplifiers. It is designed to replace open-loop devices by offering superior audio performance and reduced bill-of-materials through integrated processing. The device utilizes a 32-pin PowerTSSOP package optimized for thermal dissipation in compact enclosures.

Replacement Considerations

Direct functional substitutes within the same family include the TAS5828MDCAR. Verify pin compatibility and control mode requirements before substitution, as interface configurations may differ between package types.

FAQ

How does the Hybrid-Pro algorithm function?

The Hybrid-Pro algorithm detects upcoming audio power demands and provides a PWM format control signal via the HPFB pin to the preceding DC-DC converter, enabling predictable envelope tracking to prevent audio clipping.

What digital audio interfaces are supported?

The device supports I2S, Left Justified (LJ), Right Justified (RJ), Time Division Multiplexing (TDM), and a 3-wire digital audio interface that does not require a master clock (MCLK).