Title :
The Synthesis of Switched-Current Filters Using Bilinear Transformation
Author :
Long, Ying ; He, Yigang
Author_Institution :
Dept. Electron. & Commun. Eng., Changsha Univ., Changsha
Abstract :
The synthesis of switched-current (SI) filters from continuous time prototypes by the simulation of components, particularly capacitors and transconductors in transconductance-C filter is described. A SI low-pass 5th order Chebyshev filter using bilinear Z-transformation is presented for this kind of synthesis, with reduced switch number and great structural regularity. The obtained structure synthesized by this techniques work with doubled effective sampling rate, make strict use of voltage-sampling switches, and naturally admit two-phases non-overlapping clocks.
Keywords :
Chebyshev filters; Z transforms; capacitors; clocks; low-pass filters; switched current circuits; switched filters; SI low-pass 5th order Chebyshev filter; bilinear Z-transformation; capacitor; clock; switched-current filter; transconductance-C filter; transconductor; voltage-sampling switches; Chebyshev approximation; Circuit simulation; Clocks; Equations; Filters; Sampling methods; Switches; Switching circuits; Transconductors; Voltage;
Conference_Titel :
Testing and Diagnosis, 2009. ICTD 2009. IEEE Circuits and Systems International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-2587-7
DOI :
10.1109/CAS-ICTD.2009.4960903
