Title :
Spur reduction techniques in sine output direct digital synthesis
Author_Institution :
Lab. of Signal Process. & Comput. Technol., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
This paper reviews the spur reduction techniques used in the sine output direct digital synthesizers (DDSs). In each method the spur reduction properties and trade-offs are investigated. The analysis is restricted only to phase and amplitude quantization errors. Three novel spur reduction methods in the DDS will be presented: modified Nicholas phase accumulator, a high-pass filtered amplitude dither and a tunable amplitude error feedback structure
Keywords :
circuit feedback; circuit noise; circuit tuning; direct digital synthesis; errors; high-pass filters; amplitude quantization errors; direct digital synthesis; high-pass filtered amplitude dither; modified Nicholas phase accumulator; phase quantization errors; sine output DDS; spur reduction techniques; tunable amplitude error feedback structure; Band pass filters; Clocks; Digital-analog conversion; Feedback; Frequency synthesizers; Low pass filters; Quantization; Read only memory; Signal resolution; Signal synthesis;
Conference_Titel :
Frequency Control Symposium, 1996. 50th., Proceedings of the 1996 IEEE International.
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-3309-8
DOI :
10.1109/FREQ.1996.560280
