非理想因素對基于CCⅡ全集成連續(xù)時間濾波器的影響
ANALYSIS OF NONIDEAL EFFECTS ON CCII-BASED FULLY INTEGRATED CONTINUOUS-TIME FILTERS
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摘要: 本文分析了用CCII實現(xiàn)的積分器的誤差函數(shù)。在此基礎(chǔ)上,研究了由雙積分器回路構(gòu)成的基于CCII全集成連續(xù)時間帶通濾波器;分析了中心頻率p,和Qp,與誤差函數(shù)幅值E和相位E之間的關(guān)系;探討了CCII非理想因素對p,和Qp的影響。所得結(jié)論為設(shè)計基于CCII的MOSFET連續(xù)時間高階濾波器提供了依據(jù)和改進途徑。
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關(guān)鍵詞:
- 電流傳輸器; 全集成濾波器; 非理想分析
Abstract: The error functions of CCII-based integrators are analysed. On this basis, the fully integrated CCII-based continuous-time bandpass filters consisted of double integrator loops are studied, and the relationship between the centre frequency p and Qp and the magnitude E and the phase E of the error function is also discussed. The effects of nonideal CCII are considered in detail. The conclusions obtained may provide foundation and improvement for the design of CCII-based MOSFET continuous-time higher order filters. -
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