Title :
Evaluation system for digital audio by 1-bit stream using FPGA
Author :
Hiroaki Yamashita;Shinya Kano;Satoshi Hirano;Tomio Goto;Masaru Sakurai
Author_Institution :
Dept. of Computer Science and Engineering, Nagoya Institute of Technology
Abstract :
In digital audio systems, the ΔΣ modulator has been widely utilized as a Digital-to-Analog Converter (DAC) for Class-D amplifiers, and an Analog-to-Digital Converter (ADC). In general, to evaluate the ΔΣ modulator, an expensive analog signal generator or high-performance DAC is required. In this paper, we realize a novel system using a Field-Programmable Gate Array (FPGA), PC, and power supply. Our system allows evaluation of the ΔΣ modulator using a 1-bit stream instead of an analog signal.
Keywords :
"Modulation","Field programmable gate arrays","Signal generators","Analog circuits","Audio systems","Flowcharts","Clocks"
Conference_Titel :
Consumer Electronics (GCCE), 2015 IEEE 4th Global Conference on
DOI :
10.1109/GCCE.2015.7398618