The effects of excess loop delay in continuous-time sigma-delta modulators
Author(s)
Lee, Hyunjoo Jenny
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Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Advisor
William Yang and Hae-Sung Lee.
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Continuous-time sigma-delta (CT-Sigma Delta) modulators have recently received great attention in the academia as well as in the industry. Despite the improved understanding of the operation of CT-Sigma Delta modulators, the problem due to excess loop delay that arises from timing mismatch and parasitic delay still remains unsolved. Thus, the thesis investigates the effects of the excess loop delay. In specific, the sensitivity of various CT-Sigma Delta topologies to the excess loop delay is explored by converting the CT modulators to its DT equivalents and realizing loop filters in state-space representations in MATLAB ©.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005. Includes bibliographical references (p. 79-80).
Date issued
2005Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer SciencePublisher
Massachusetts Institute of Technology
Keywords
Electrical Engineering and Computer Science.