COMBINED SYNTHESIZERS OF SIGNALS ON BASIS TWOCIRCULAR PLL AND DDS
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Description: The article describes the operation of a combined synthesizer, on the basis of a direct digital synthesizer (DDS) and a tworing phase locked loop system (PLL). Expression is got for the model of spectral density of power of a phase noise of a combined synthesizer is gained. Results of modeling of noise performances of a combined synthesizer for various target frequencies (3 - 11 GHz) are resulted.
Keywords:
combined synthesizer, PLL, DDS, noise characteristics, the phase noise
Reference:
Kandыryn, N.P. (2015), “Kombynyrovannыe syntezatorы syhnalov na osnove dvukhkoltsevoi YFAPCh y TsSS” [Combined synthesizers of signals on basis twocircular PLL and DDS], Information Processing Systems, Vol. 1(126), pp. 27-31.
Kandыryn, N.P. (2015), “Kombynyrovannыe syntezatorы syhnalov na osnove dvukhkoltsevoi YFAPCh y TsSS” [Combined synthesizers of signals on basis twocircular PLL and DDS], Information Processing Systems, Vol. 1(126), pp. 27-31.