Title :
The Design and FPGA Verification of a General Structure, Area-optimized Interpolation Filter Used in /spl Delta/-/spl Sigma/ DAC
Author :
Huang, Xiaowei ; Han, Yan ; Chen, Lei
Author_Institution :
Inst. of Microelectron. & Photoelectron., Zhejiang Univ.
Abstract :
This paper describes a general structure, area-optimized interpolation filter used in the Delta-Sigma digital-to-analog converter (DAC) intended for the portable digital audio system. The whole filter system simulation, verilog implement and FPGA verification are processing, the signal-to-noise(S/N) achieves 115 dB and the total area is small enough which has good prospect for the audio applications
Keywords :
delta-sigma modulation; digital audio broadcasting; field programmable gate arrays; hardware description languages; DeltaSigma DAC; FPGA verification; audio applications; filter system simulation; interpolation filter; portable digital audio system; signal-to-noise; verilog implement; Attenuation; Cutoff frequency; Digital filters; Field programmable gate arrays; Hafnium; Interpolation; Mathematical model; Passband; Signal design; Signal processing;
Conference_Titel :
Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0160-7
Electronic_ISBN :
1-4244-0161-5
DOI :
10.1109/ICSICT.2006.306632
