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The PAM8403 stereo power amplifier provides Class D efficiency with AB amplifier performance. It features low noise and eliminates the need for traditional D-class amplifier output low-pass filters due to its filterless structure. Requiring minimal peripheral components, it saves PCB space and system costs, making it an ideal choice for portable applications. The PAM8403 achieves over 85% efficiency in delivering 3W of power, and includes system shutdown and mute control functions. Its unique circuit architecture enhances noise immunity and reduces RF interference.