Aperture jitter effects in wideband ADC systems

Author

Kobayashi, Haruo ; Morimura, M. ; Kobayashi, Kensuke ; Onaya, Yoshitaka

Author_Institution

Dept. of Electron. Eng., Gunma Univ., Japan

fYear

1999

fDate

36373

Firstpage

1089

Lastpage

1094

Abstract

This paper describes the exact formula of the output noise power for almost any input signal in wideband sampling systems in the presence of aperture jitter. If is also shown that in ADC systems the quantization noise and the noise due to the aperture jitter can be added as the total noise power, and hence the exact formula of signal-to-noise ratio due to them in ADC systems is derived. Then the timing skew problem in the interleaved ADC system which is similar to the aperture jitter problem is discussed. We show the exact formula for the noise power due to the timing skews and clarify the difference and similarity between the aperture jitter and timing skew problems. Our theoretical results are confirmed by numerical simulations, and these results are useful for wideband sampling system applications

Keywords

analogue-digital conversion; circuit noise; jitter; signal sampling; ADC systems; aperture jitter; digital oscilloscope; equivalent time sampling; output noise; quantization noise; timing skew; wideband sampling systems; Apertures; Clocks; Frequency; Oscilloscopes; Phase noise; Quantization; Sampling methods; Signal to noise ratio; Timing jitter; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

SICE Annual, 1999. 38th Annual Conference Proceedings of the

Conference_Location

Morioka

Print_ISBN

4-907764-13-8

Type

conf

DOI

10.1109/SICE.1999.788703

Filename

788703