Open Access5 ps Jitter Programmable Time Interval/Frequency Generator
Author(s) -
Paweł Kwiatkowski,
K. Różyc,
Marek Sawicki,
Z. Jachna,
R. Szplet
Publication year - 2017
Publication title -
metrology and measurement systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.291
H-Index - 30
eISSN - 2080-9050
pISSN - 0860-8229
DOI - 10.1515/mms-2017-0009
Subject(s) - jitter , signal generator , frequency synthesizer , square wave , direct digital synthesizer , interval (graph theory) , generator (circuit theory) , field programmable gate array , electronic engineering , computer science , cmos , signal (programming language) , phase locked loop , electrical engineering , chip , voltage , computer hardware , engineering , power (physics) , physics , mathematics , telecommunications , quantum mechanics , combinatorics , programming language
A new time interval/frequency generator with a jitter below 5 ps is described. The time interval generation mechanism is based on a phase shifting method with the use of a precise DDS synthesizer. The output pulses are produced in a Spartan-6 FPGA device, manufactured by Xilinx in 45 nm CMOS technology. Thorough tests of the phase shifting in a selected synthesizer are performed. The time interval resolution as low as 0.3 ps is achieved. However, the final resolution is limited to 500 ps to maximize precision. The designed device can be used as a source of high precision reference time intervals or a highly stable square wave signal of frequency up to 50 MHz
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