Measurement of continuous-time ΣΔ modulators: Implications of using spectrum analyzer

Abstract : In this paper, The difference between getting the output spectrum directly using spectrum analyzer and obtaining the spectrum digitally in measuring clock jitter effect on continuous-time ΣΔ modulator is analyzed. It is shown that clock jitter can be seen as input-referred or output-referred, depending on the nature of the measurement tool. Quantization noise and jitter noise are analyzed and compared graphically using a simple approach. The presented analysis is verified with system-level simulation of a 4th order bandpass continuous-time ΣΔ modulator.
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Conference papers
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https://hal.archives-ouvertes.fr/hal-00574516
Contributor : Ahmed Ashry <>
Submitted on : Tuesday, March 8, 2011 - 11:23:07 AM
Last modification on : Thursday, March 21, 2019 - 1:07:21 PM

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Ahmed Ashry, Ahmed K. El-Shennawy, Mohammad Elbadry, Ayman Elsayed, Hassan Aboushady. Measurement of continuous-time ΣΔ modulators: Implications of using spectrum analyzer. IEEE International Conference on Microelectronics (ICM'10), Dec 2010, Cairo, Egypt. pp.9-12, ⟨10.1109/ICM.2010.5696216⟩. ⟨hal-00574516⟩

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