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Proceedings Paper

Direct digital synthesis: some options for FPGA implementation
Author(s): Chris H. Dick; Fred J. Harris
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Paper Abstract

Direct digital synthesizers (DDS), or numerically controlled oscillators, are a functional requirement of virtually every digital communications system, including modems and software defined radios. Frequency synthesis is commonly realized using application specific standard parts or as software on a DSP processor. With ever increasing amounts of digital signal processing being realized using field programmable gate array (FPGA) based hardware platforms, it is fruitful to explore various DDS architectures and evaluate the many possible architecture/performance tradeoffs with a view to FPGA implementation. This paper describes three DDS architectures and presents several designs that illustrate DDS performance and highlight design considerations for FPGA implementation.

Paper Details

Date Published: 26 August 1999
PDF: 9 pages
Proc. SPIE 3844, Reconfigurable Technology: FPGAs for Computing and Applications, (26 August 1999); doi: 10.1117/12.359534
Show Author Affiliations
Chris H. Dick, Xilinx, Inc. (United States)
Fred J. Harris, California State Univ./San Diego (United States)


Published in SPIE Proceedings Vol. 3844:
Reconfigurable Technology: FPGAs for Computing and Applications
John Schewel; Peter M. Athanas; Steven A. Guccione; Stefan Ludwig; John T. McHenry, Editor(s)

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