Title :
An improved area-efficient design method for interpolation filter of Sigma-Delta audio DAC
Author :
Li, Jing ; Wu, Xiao-Bo ; Zhao, Jin-Chen
Author_Institution :
Inst. of VLSI Design, Zhejiang Univ., Hangzhou, China
Abstract :
This paper presents an improved area-efficient design method to construct interpolation filter of Sigma-Delta audio digital-to-analog converter (DAC). Several architectures and implementation techniques are adopted to reduce the complexity of the system. The Matlab simulation, FPGA verification and digital synthesis are performed to support the feasibility of the presented method. The cell area of the interpolation filter built by this method is 0.33mm2 in TSMC 0.18μm COMS process.
Keywords :
digital filters; digital-analogue conversion; field programmable gate arrays; mathematics computing; sigma-delta modulation; CMOS process; FPGA verification; Matlab simulation; TSMC; area-efficient design; digital synthesis; interpolation filter; sigma-delta audio DAC; sigma-delta audio digital-to-analog converter;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2010 10th IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-5797-7
DOI :
10.1109/ICSICT.2010.5667733
