Fast and accurate jitter simulation technique for continuous-time ΣΔmodulators

Fast and accurate jitter simulation technique for continuous-time ΣΔmodulators

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A fast and accurate technique for modelling and simulation of clock jitter in continuous-time sigma-delta (ΣΔ) modulators is introduced. In addition to its high speed compared to the traditional jitter simulation method, the proposed technique is still continuous-time based, which is more convenient than discrete-time based jitter modelling suggested in other publications. The mathematical principle of the proposed technique, as well as simulations results, are presented and compared to other simulation techniques.


    1. 1)
      • Oliaei, O., Aboushady, H.: `Jitter effects in continuous-time ΣΔ modulators with delayed return-to-zero feedback', Proc. IEEE ICECS, 1998, Lisbon, Portugal, 1, p. 351–354.
    2. 2)
      • Benabes, P., Kielbasa, R.: `Fast clock-jitter simulation in continuous-time delta-sigma modulators', IEEE Instrumentation Measurement Technology Conf., 2001, Budapest, Hungary, p. 1587–1590.
    3. 3)
    4. 4)
      • J. Cherry , W. Snelgrove . Clock jitter and quantizer metastability in continuous-time delta-sigma modulators. IEEE Trans. Circuits Syst. II, Analog Digit. Signal Process. , 6 , 661 - 676

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