DocumentCode
2447685
Title
Direct digital frequency synthesis with dual-slope approach
Author
Strollo, A.G.M. ; De Caro, D. ; Napoli, E. ; Petra, N.
Author_Institution
Dept. of Electron. & Telecommun. Eng., Univ. of Naples Federico II, Italy
fYear
2003
fDate
16-18 Sept. 2003
Firstpage
397
Lastpage
400
Abstract
A new technique for phase to sine mapping in direct digital frequency synthesizers (DDFSs) is presented. With respect to previously proposed piecewise linear Taylor and Chebyshev approaches, novel technique reduces either ROM size or arithmetic hardware complexity, without decreasing accuracy. Simulation results for a 0.35/spl mu/m technology show a substantial increase in performances with respect to Taylor and Chebyshev DDFSs.
Keywords
Chebyshev approximation; direct digital synthesis; piecewise linear techniques; read-only storage; 0.35 microns; DDFS; ROM size reduction; arithmetic hardware complexity; direct digital frequency synthesis; dual-slope approach; phase-to-sine mapping; piecewise linear Chebyshev; piecewise linear Taylor; Chebyshev approximation; Frequency control; Frequency synthesizers; Hardware; Piecewise linear approximation; Piecewise linear techniques; Polynomials; Read only memory; Signal generators; Taylor series;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 2003. ESSCIRC '03. Proceedings of the 29th European
Conference_Location
Estoril, Portugal
Print_ISBN
0-7803-7995-0
Type
conf
DOI
10.1109/ESSCIRC.2003.1257156
Filename
1257156
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