A novel segmented parabolic sine approximation for direct digital frequency synthesizers

David J. Betowski, Daniel Dwyer, Valeriu Beiu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper deals with maximizing the spurious free dynamic range (SFDR), while minimizing the power consumption of sine-wave approximation circuits used in direct digital frequency synthesizers (DDFSs). A novel 16-segment parabolic approximation is detailed and compared with other recent solutions. The circuit complexity (as number of transistors) is comparable to that of ultra low-power 16-segment piecewise linear approximations, while the SFDR is increased from 72 dBc to 84 dBc.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Embedded Systems and Applications ESA'04 - Proceedings of the INternational Conference on VLSI, VLSI'04
EditorsH.R. Arabnia, M. Guo, L.T. Yang
Pages523-529
Number of pages7
Publication statusPublished - 2004
Externally publishedYes
EventProceedings of the International Conference on Embedded Systems and Applications ESA'04 - Proceedings of the International Conference on VLSI, VLSI'04 - Las Vegas, NV, United States
Duration: Jun 21 2004Jun 24 2004

Publication series

NameProceedings of the International Conference on Embedded Systems and Applications ESA'04 - Proceedings of the International Conference on VLSI, VLSI'04

Other

OtherProceedings of the International Conference on Embedded Systems and Applications ESA'04 - Proceedings of the International Conference on VLSI, VLSI'04
Country/TerritoryUnited States
CityLas Vegas, NV
Period6/21/046/24/04

Keywords

  • Digital Signal Processing
  • Direct Digital Frequency Synthesizer (DDFS)
  • Low Power Design
  • Sine Wave Approximation
  • Vlsi Systems

ASJC Scopus subject areas

  • General Engineering

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