A new approach to design a ROM-less direct digital frequency synthesizer (DDFS) is presented. An optimized polynomial interpolation technique has been used to achieve a 60 dBc or 80 dBc spurious-free dynamic range. Also, in the paper a new technique for designing efficient circuits for the evaluation of polynomial functions is presented. The new DDFS compares favorably with state of the art DDFSs designed using the CORDIC algorithm.
ROM-less Direct Digital Frequency Synthesizers exploiting Polynomial Approximation
NAPOLI, ETTORE;
2002-01-01
Abstract
A new approach to design a ROM-less direct digital frequency synthesizer (DDFS) is presented. An optimized polynomial interpolation technique has been used to achieve a 60 dBc or 80 dBc spurious-free dynamic range. Also, in the paper a new technique for designing efficient circuits for the evaluation of polynomial functions is presented. The new DDFS compares favorably with state of the art DDFSs designed using the CORDIC algorithm.File in questo prodotto:
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