Title :
All Digital Frequency Synthesis based on Pulse Direct Digital Synthesizer with spurs free output and improved noise floor
Author :
Sotiriadis, Paul P.
Author_Institution :
Dept. of Electr. & Comput. Sci., Nat. Tech. Univ. of Athens, Athens, Greece
Abstract :
This work presents Direct-Digital Frequency Synthesis architectures based on the classical Pulse-Direct Digital Synthesizer and using two quantization paths with opposite dithers or multi-path quantization with independent dithers to achieve spurs-free output with improved dynamic range. The proposed architectures are studied mathematically and the theory is supported by MATLAB simulation results.
Keywords :
direct digital synthesis; mathematical analysis; quantisation (signal); MATLAB simulation; all digital frequency synthesis; direct-digital frequency synthesis architecture; dithers quantization; improved noise floor; mathematical study; multipath quantization; pulse direct digital synthesizer; spurs free output; Bandwidth; Dynamic range; Floors; Frequency synthesizers; Noise; Quantization (signal); Synthesizers; Direct digital synthesis; Dithering; frequency spurs; noise shaping; quantization; spectrum;
Conference_Titel :
Frequency Control Symposium (FCS), 2014 IEEE International
Conference_Location :
Taipei
DOI :
10.1109/FCS.2014.6859991
