The Synthesis of Switched-Current Filters Using Bilinear Transformation

Author

Long, Ying ; He, Yigang

Author_Institution

Dept. Electron. & Commun. Eng., Changsha Univ., Changsha

fYear

2009

fDate

28-29 April 2009

Firstpage

1

Lastpage

4

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 5^th 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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CAS-ICTD.2009.4960903

Filename

4960903