Abstract
In this paper, methods for analyzing the effects of small timing errors in D/A and time-interleaved A/D converters are studied. It is shown that timing skew and slew rate in D/A converters cause broadband spurious components, but the output spectrum can in most cases be calculated simply by averaging the errors over one sample period and using FFT at the original sample rate. Also the frequency-domain effects of mismatch in time-interleaved A/D converters can be constructed by calculating the mixing transfer functions caused by the time-varying gain and timing.
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Timo Rahkonenwas born in Jyväskylä, Finland,1962. He received his Diploma Engineer, Licentiate and Doctor of Technology degrees in 1986, 1991 and 1994, respectively, in University of Oulu, Oulu, Finland. Currently he is a professor in circuit theory and circuit design in University of Oulu, Oulu, Finland.
Heikki Repowas born in Joutseno, Finland, 1976. He has studied the effects of timing problems in a time-interleaved analog FIR filter, and is currently finishing his Diploma Engineer degree in University of Oulu.
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Rahkonen, T., Repo, H. Efficient Behavioural Modelling of Small Timing Errors in A/D and D/A Converters. Analog Integr Circ Sig Process 46, 29–36 (2006). https://doi.org/10.1007/s10470-005-2474-4
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DOI: https://doi.org/10.1007/s10470-005-2474-4