TAS5122DFD

Overview

The TAS5122DFD is a stereo digital amplifier power stage manufactured by Texas Instruments. It integrates two Class D amplifier channels capable of delivering up to 30 watts per channel into a 4-ohm load. The device operates on a single supply voltage ranging from 18 V to 60 V. It features a 56-pin HTSSOP package with an exposed pad for thermal management. Key electrical specifications include a maximum output power of 37 W and support for high-fidelity audio reproduction.

Feature Summary

• Integrates dual Class D amplifier channels for stereo audio output
• Supports direct digital input interfaces including I2S, TDM, and PDM
• Includes built-in diagnostic capabilities for fault detection
• Features programmable gain and volume control via serial interface

Applications

• DVD receivers
• Home theater systems
• Mini/micro component audio systems
• Internet music appliances

Procurement Notes

Verify the specific suffix 'DFD' corresponds to the 56-pin HTSSOP package with exposed pad. Confirm the manufacturer source is Texas Instruments or authorized Luminary Micro distributors. Ensure the datasheet version matches the required pinout and electrical characteristics for your design.

Selection Notes

Select this component when a compact, high-efficiency stereo amplifier solution is required. It is suitable for applications needing direct digital audio inputs without external DACs. Consider the thermal requirements of the HTSSOP package and the supply voltage range compatibility with your system power rails.

Part Context

The TAS5122 belongs to Texas Instruments' PurePath Digital series of audio amplifiers. It is designed to replace traditional analog amplifier stages in digital audio systems. The device simplifies system design by integrating the power stage and digital interface controls into a single IC.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts and software configurations if considering alternative devices from other manufacturers.