DIGITAL SPEAKER DRIVE, DIGITAL SPEAKER DEVICE, ACTUATOR, PLANAR DISPLAY DEVICE, AND MOBILE ELECTRONIC APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a digital acoustic system optimum for a digital speaker device for converting an analog audio directly by a circuit to output a plurality of digital signals using a ΔΣ modulator and a mismatch shaping filter circuit, and a plurality of speakers driven by a plurality of digital signals.

SOLUTION: A digital speaker drive includes: the ΔΣ modulator 201; a back-end filter 202; s drive circuits 2031-203s; and a power circuit 205 for supplying power to the ΔΣ modulator, back-end filter, and s drive elements. The s drive circuits correspond to s digital signal terminals.

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