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W referacie przedstawiono wyniki pomiarów fluktuacji fazowych sygnału zegarowego wytworzonego w procesie cyfrowej syntezy częstotliwości. Wykorzystano do tego celu dedykowane bloki DCM wbudowane w strukturze układu programowalnego FPGA Virtex4 XC4VFX12. Przeprowadzono badania mające na celu wybranie odpowiedniego trybu pracy tych bloków, aby uzyskać referencyjny sygnał zegarowy charakteryzujący się...
Random clock signal phase fluctuations and their influence on the precision of time-interval measurement are described in this paper. The construction of time-interval measurement system [TIMS] and its application for oscillator phase fluctuations measurement are discussed. The new metrological parameters useful for estimations of the precision of TIMS as function of the measuring range are proposed.
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