Spectral analysis of double-sampling switched-capacitor filters


Rijns, J.J.F. and Wallinga, H. (1991) Spectral analysis of double-sampling switched-capacitor filters. IEEE transactions on circuits and systems, 38 (11). pp. 1269-1279. ISSN 0098-4094

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Abstract:The double-sampling scheme (DSS) design technique is suitable for the realization of high-frequency switched-capacitor (SC) filters. This design technique effectively doubles the applicable frequency range of standard bi-phase SC filters. In practice, the particular nonideal properties of the double-sampling scheme result mainly in parasitic sidebands in the output spectrum. The DSS design technique is described, and a spectral analysis of double-sampling SC filters, including the nonideal properties, is given. With these results, the precise specifications for the pre- (anti-aliasing) and postfilter are derived. An excellent match between the analytical description and experimental results is found for a linear fifth-order elliptic double-sampling SC low-pass filter designed for video frequency applications
Item Type:Article
Copyright:© 1991 IEEE
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/14491
Official URL:https://doi.org/10.1109/31.99156
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