Title :
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
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;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6251043
