TAS5706BPAP

Overview

The TAS5706BPAP is a digital-input, 20-W stereo Class D speaker amplifier manufactured by Texas Instruments. It utilizes a closed-loop feedback architecture to enhance sound quality and provide greater speaker control compared to open-loop designs. The device features an I2S digital interface and includes integrated Speaker EQ and Dynamic Range Control (DRC). It operates within a temperature range of 0°C to +85°C and is housed in a 64-pin HTQFP package.

Feature Summary

• Closed-loop feedback architecture for improved speaker control and higher PSRR
• Integrated Speaker EQ and Dynamic Range Control (DRC)
• Digital I2S input interface for direct connection to audio sources

Applications

• LCD TV backlight supply operation
• High-fidelity audio systems requiring EMC compliance
• Consumer electronics with limited power supply noise margins

Procurement Notes

Verify the specific suffix 'BPAP' against official Texas Instruments documentation to confirm pinout, thermal characteristics, and functional equivalence to the standard TAS5706APAP variant. Ensure the component meets RoHS requirements and humidity sensitivity levels specified in the datasheet before integration into production assemblies.

Selection Notes

Select this component when high electromagnetic compatibility (EMC) and robust performance under noisy power conditions are required. The closed-loop design is suitable for applications where the amplifier must operate directly from unstable supplies, such as LCD TV backlight circuits, ensuring stable output despite supply fluctuations.

Part Context

This part belongs to the TAS5706A series of digital audio power amplifiers. It represents Texas Instruments' introduction of closed-loop technology in the 20W stereo segment, distinguishing it from previous open-loop models by offering superior power supply rejection ratio (PSRR) and enhanced audio fidelity.

Replacement Considerations

TAS5706APAPR

FAQ

What distinguishes the TAS5706BPAP from open-loop amplifiers?

It employs a closed-loop feedback architecture, which provides greater speaker control, higher PSRR, and improved EMC performance.

Can this amplifier operate directly from an LCD TV backlight supply?

Yes, the high PSRR allows it to operate effectively even when powered directly from the noisy backlight supply of an LCD TV.