Title :
A novel high-resolution ROM-less direct digital frequency synthesizer for signal synchronization
Author :
Chen, Yao-Hua ; Chau, Yawgeng A.
Author_Institution :
Dept. of Commun. Eng., Yuan Ze Univ., Hsinchu
Abstract :
Based on the octuple angle formula of the cosine function, a novel ROM-less direct digital frequency synthesizer (DDFS) is designed and analyzed. From the analysis, with the error compensation, a 16-bit high-resolution can be achieved by the devised DDFS, and the analytical spurious free dynamic range (SFDR) is 109.1 dBc. To have the complete period of the trigonometric function, the control circuit is also designed. The proposed DDFS can be realized by cell-based process.
Keywords :
direct digital synthesis; frequency synthesizers; signal synthesis; cell-based process; control circuit; direct digital frequency synthesizer; error compensation; signal synchronization; spurious free dynamic range; trigonometric function; Arithmetic; Circuit simulation; Cybernetics; Dynamic range; Error analysis; Error compensation; Frequency synchronization; Frequency synthesizers; Machine learning; Piecewise linear approximation; Direct digital frequency synthesizer; Octuple angle formula; ROM-less;
Conference_Titel :
Machine Learning and Cybernetics, 2008 International Conference on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-2095-7
Electronic_ISBN :
978-1-4244-2096-4
DOI :
10.1109/ICMLC.2008.4621066
