The effect of DAC clock jitter on the RMS value of digitally synthesized AC voltage

Author

Kampik, Marian ; Popek, Grzegorz

Author_Institution

Silesian Univ. of Technol., Gliwice, Poland

fYear

2012

fDate

1-6 July 2012

Firstpage

542

Lastpage

543

Abstract

The paper describes the effect of the digital-to-analog converter (DAC) jittered clock signal on the effective (RMS) value of digitally synthesized sinusoidal signal. The article contains the mathematical model of that effect and comparison between results obtained with the mathematical model and by numerical simulations. The simple equation obtained with the mathematical model allows to estimate uncertainty component due to clock jitter of the voltage generated by the digitally synthesized sources of sinusoidal voltages used in quantum and non-quantum AC voltage standards and allows to specify requirements for the DAC clock generation circuit. The analysis presented is general and its result can be used for determination of uncertainty of the effective value of any uniformly sampled sinusoidal signal disturbed by jitter.

Keywords

clocks; digital-analogue conversion; jitter; mathematical analysis; measurement standards; numerical analysis; voltage measurement; DAC clock generation circuit; DAC clock jitter effect; RMS value; digital-to-analog converter; digitally synthesized AC voltage; digitally synthesized sinusoidal signal; mathematical model; nonquantum AC voltage standard; numerical simulation; quantum AC voltage standard; uncertainty component estimation; uniformly sampled sinusoidal signal disturbance; voltage generation; Clocks; Decision support systems; Jitter; Mathematical model; Numerical simulation; Standards; Uncertainty; AC voltage standard; digital signal synthesis; digital-to-analog converter; effective value; jitter;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6251043

Filename

6251043