1 Introduction

Texas Instruments continues to push the boundaries of audio amplifiers with advanced features and algorithms that set new benchmarks for efficiency and performance. The TAS2x20 family integrates several proprietary modes that significantly improve power utilization without compromising audio quality. At the core of these devices are a set of exclusive efficiency-boosting technologies:

• Internal Class-H
• Music efficiency mode
• Noise gate
• Y-bridge

Together, these features intelligently adapt to operating conditions, so the amplifier delivers maximum efficiency while preserving exceptional sound quality.

This application note provides an inside look at the algorithms that drive these technologies, the external system interface, and the PurePath? Console 3 (PPC3) software that simplifies evaluation and tuning. This document includes performance results that demonstrate the benefits of these efficiency improvement techniques, which enable designers to create smaller, cooler, and longer-lasting audio products without compromise.