Title :
An application of new direct digital frequency synthesizer
Author :
Li, Baoxue ; Zhang, Bing ; Fei, Yuanchun ; Zhao, Qi
Author_Institution :
Dept. of Electr. Eng., Beijing Inst. of Technol., Beijing, China
Abstract :
In this paper, we propose an application of new direct digital frequency synthesizer, which clock frequency is up to 3.2 GHz. The design can generate single signal, chirp signal, stepped-frequency signal and stepped-frequency chirp signal from dc to 1500 MHz. The conclusions are drawn after comparing the NEW DDS with AD9858: phase noise and spurious spectrum of the NEW DDS are better than AD9858.
Keywords :
direct digital synthesis; microwave circuits; phase noise; signal generators; AD9858; bandwidth 1500 MHz; direct digital frequency synthesizer; frequency 3.2 GHz; phase noise; single signal generation; spurious spectrum; stepped-frequency chirp signal generation; stepped-frequency signal generation; Bandwidth; Chirp; Clocks; Frequency synthesizers; Instruments; Phase noise; Radar; Signal resolution; Signal synthesis; Table lookup; Direct Digital Frequency Synthesizer (DDFS or DDS); phase noise; spurious spectrum;
Conference_Titel :
Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3863-1
Electronic_ISBN :
978-1-4244-3864-8
DOI :
10.1109/ICEMI.2009.5274159
