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Performance of an All-Digital Power Amplification System

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Design aspects of an all-digital open-loop power amplifier system are discussed and measurement results of a practical implementation are shown. THD and noise performance comparable to that of high quality class B amplifiers and low level D/A converters, respectively, are obtained. The described technology makes it possible to produce all-digital audio amplifiers with adequate performance for almost any application.

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AES - Audio Engineering Society