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1. A circuit construction of a portable handheld device for processing high resolution and playing back digital audio data with high fidelity, wherein the circuit construction comprises:
a multi-layer PCB board; a multi-core digital signal micro-processor, embedded with a set of digital audio CODECs for 24 bit audio data processing, being mounted onto said PCB board; a field programmable gate array encoder and decoder that is in electronic communication with said multi-core digital signal micro-processor, being mounted onto said PCB board; a wireless transceiver that is in electronic communication with said field programmable gate array encoder and decoder; a digital-to-analog converter that is in electronic communication with said multi-core digital signal micro-processor, being mounted onto said PCB board; a set of differential operational audio amplifiers that are in electronic communication with said digital-to-analog converter, being mounted onto said PCB board; and a dual power supply management circuit having a set of low-noise linear regulator circuits, in electronic communication with digital-to-analog converter and said set of differential operational audio amplifiers, providing independent power management for said digital-to-analog converter and said set of differential operational audio amplifiers. |
