Accurate and low jitter time-interval generators based on phase shifting method

P Kwiatkowski; Z Jachna; K Różyc; J Kalisz

doi:10.1063/1.3690383

Accurate and low jitter time-interval generators based on phase shifting method

Rev Sci Instrum. 2012 Mar;83(3):034701. doi: 10.1063/1.3690383.

Authors

P Kwiatkowski¹, Z Jachna, K Różyc, J Kalisz

Affiliation

¹ Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland.

PMID: 22462942
DOI: 10.1063/1.3690383

Abstract

The paper describes two time-interval generators based on the phase shifting method. The first one utilizes the digital clock manager units integrated in a field programmable gate array (FPGA) device and has jitter below 65 ps (rms) over the range of 4 ns-50 ms, while the second one utilizes a separate direct digital synthesizer and has jitter below 15 ps (rms) over the range of 10.2 ns-50 ms. The phase shifting method can be used to design new low-cost and high-precision time-interval generators using the popular FPGA technology.