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Design of selective linear phase bandpass switched-capacitor filters with equiripple passband amplitude response

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3 Author(s)
M. F. Fahmy ; Dept. of Electr. & Electron. Eng., Assiut Univ., Egypt ; M. Abo-Zahhad ; M. I. Sobhy

A novel approach is presented to the design and synthesis of switched-capacitor (SC) filters. An efficient iterative algorithm is described for the construction of a class of selective linear-phase bandpass filter with equiripple passband amplitude response. The solution is obtained in terms of digital linear phase bandpass polynomials. A novel SC implementation is performed using an approach based on the reflection filter concept. The synthesis of the SC filter follows the steps used in microwave filter synthesis. The resulting SC circuits are completely insensitive to parasitic capacitances. Design tables and an illustrative example are also given

Published in:

IEEE Transactions on Circuits and Systems  (Volume:35 ,  Issue: 10 )