DocumentCode
2560515
Title
A novel interpolator architecture for ΣΔ DACs
Author
Francesconi, F. ; Lazzari, G. ; Liberali, V. ; Maloberti, F. ; Torelli, G.
Author_Institution
Dept. of Electron., Univ. of Pavia, Italy
fYear
1993
fDate
22-25 Feb 1993
Firstpage
249
Lastpage
253
Abstract
A scheme to implement Lagrange interpolation for Σ-Δ D/A (digital/analog) converters is presented. The proposed implementation requires only sums of digital signals, avoiding the use of generic multipliers. The circuit has a reduced complexity and is suitable for very high-frequency operation. The given analysis shows that the presented architecture has good performance both in the passband and in the stopband. The effects of finite digital word length are also discussed
Keywords
digital-analogue conversion; interpolation; polynomials; sigma-delta modulation; ΣΔ DACs; Lagrange interpolation; Lagrange polynomials; finite digital word length; interpolator architecture; passband; reduced complexity; stopband; very high-frequency operation; Finite impulse response filter; Frequency response; Interpolation; Lagrangian functions; Polynomials; Time domain analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Design Automation, 1993, with the European Event in ASIC Design. Proceedings. [4th] European Conference on
Conference_Location
Paris
Print_ISBN
0-8186-3410-3
Type
conf
DOI
10.1109/EDAC.1993.386468
Filename
386468
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