采用單位增益放大器的高Q小電容分散的SC帶通濾波器
HIGH Q AND LESS CAPACITOR SPREAD SWITCHED-CAPACITOR FILTER USING UNITY-GAIN AMPLIFIERS
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摘要: 本文提出了一種新的采用單位增益放大器的開關(guān)電容(SC)電路。該電路用于高Q帶通濾波器實(shí)現(xiàn)時(shí),可獲得很小的電容分散,較同類的其它SC電路的電容分散有大幅度的減小。
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關(guān)鍵詞:
- 開關(guān)電容濾波器; 帶通濾波器; 單位增益放大器
Abstract: A new single-amplifier switcbed-cap acitor filter using unity-gain amplifier is presented. When used for the relation of high Q bandpass characteristic, the circuit can obtain much less capacitor spread, and its capacitor spread, compared with other circuits given by literatures, is reduced significantly. -
J. Malawka, M.S. Ghausi, IEE Proc.-G, 127(1980)4,187-190.[2]P.V. Ananda Mohan et al., IEE Proc.-G, 130(1983)1,2-8.[3]吳杰,電子科技雜志,1989年,第1期,第45-48頁(yè).[4]吳杰,電路與系統(tǒng)學(xué)報(bào),1(1989)2,177-181.[5]M.G. Ghausi, K.R. Laker, Modern Filter Design, Frentice-Hall, Englewood Cliffs, NJ,(1981).[6]吳杰,電子學(xué)報(bào),18(1990)4,127-128. -
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