Design of Wideband Frequency Synthesizer Based on DDS-Driven PLL
Dong Lifang · Modern Electronics Technique · 2009
By taking advantages of the Direct Digital Synthesizer(DDS) and Phase Locked Loop(PLL),a low spurious,wide band,high resolution triple tuned type frequency synthesizer with AD9954 and ADF4113 is designed.The results which are the simulated data and the measured results on finished product indicate that the technology can obtain its goal.Its specifications show as following: output frequency range 594~999 MHz,step 5 Hz,phase noise-91 dBc/Hz@10 kHz,SFDR-73 dBc,hopping time 520 μs.