Future of Class-D Amplification Technology for IP Audio Systems

John Oh
Pulsus, Korea

This paper presents near-future perspective of class- D audio technology and SoC (system-on-chip) solutions that are needed for IP audio systems and other home entertainment devices. Music listening environments are evolving fast. Handheld music players, Hi-Fi home systems, TV, and mobile phones are now networked with each other. Wired and wireless network connectivity, real-time operating system, graphical user interface, embedded DSP software, multiroom speakers, and docking capability will be common features of audio systems. We discuss what is needed for amplification components of future SoC solutions and which are missing in the current class-D amplifier technology.

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