DocumentCode
3294173
Title
Design of an over-sampling digital filter for high-resolution Σ-ΔDAC
Author
Yuqing, Deng ; Ning, Tang ; Cheng, Zhang ; Ke, Chen
Author_Institution
Inf. & Commun. Coll., Guilin Univ. of Electron. Technol., Guilin, China
fYear
2011
fDate
15-17 April 2011
Firstpage
5817
Lastpage
5820
Abstract
This paper presents an efficient way to implement an interpolation filter in 18bit Σ -Δ DAC. The filter based on multiterm interpolation principle, to over-sample (128x)the audio singal with the sample rate of 48kHz and the resolution of 18 bit. After system simulated in the matlab, implemented with VerilogHDL, the circuit is designed and simulated with Quartus II. The simulation result illustrates it could gain performance satisfactorily.
Keywords
digital filters; interpolation; sigma-delta modulation; Matlab implementation; Quartus II simulation; VerilogHDL; frequency 48 kHz; high-resolution Σ-Δ DAC; multiterm interpolation filter; over-sampling digital filter; word length 18 bit; Digital filters; Hardware design languages; Information filters; Integrated circuit modeling; Interpolation; Publishing; ΣΔDAC interpolation filter; Matlab; over-sample;
fLanguage
English
Publisher
ieee
Conference_Titel
Electric Information and Control Engineering (ICEICE), 2011 International Conference on
Conference_Location
Wuhan
Print_ISBN
978-1-4244-8036-4
Type
conf
DOI
10.1109/ICEICE.2011.5778366
Filename
5778366
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