TAS2555YZR

Overview

The TAS2555YZR is a Class-D mono audio amplifier manufactured by Texas Instruments. It delivers 5.7 W of output power into a 4-ohm load with a THD+N of 0.02%. The device operates on a supply voltage ranging from 1.65 V to 1.95 V and functions within a temperature range of -40°C to +85°C. It utilizes a 42-pin DSBGA package for surface mount installation.

Feature Summary

• Integrates an ultra-low-noise audio DAC with a Class-D power amplifier
• Incorporates speaker voltage and current sensing feedback mechanisms
• Features Class-H boost technology for enhanced efficiency

Applications

• Smartphone audio systems
• Tablet multimedia devices
• Portable digital media players

Procurement Notes

Verify the specific suffix YZR against the official Texas Instruments datasheet to confirm tape-and-reel packaging specifications. Ensure compatibility with the required 42-DSBGA footprint during PCB layout. Cross-reference the RoHS compliance status directly with the manufacturer's documentation before procurement.

Selection Notes

Select this component for applications requiring high-fidelity mono audio output in space-constrained portable electronics. The integrated DAC simplifies system architecture by reducing external component count. Verify that the host processor supports the necessary digital interface protocols for direct connection to the amplifier input.

Part Context

This part belongs to the TAS255x series of smart amplifiers designed for mobile devices. It combines digital input capabilities with advanced power management features. The series targets consumer electronics where audio quality and power efficiency are critical constraints for battery-operated systems.

Replacement Considerations

The TAS2557YRT is a documented substitute within the same family, offering similar functionality and pinout compatibility. Verify electrical parameter alignment and software configuration requirements when transitioning between these variants.