非理想因素对基于CCⅡ全集成连续时间滤波器的影响
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实现的积分器的误差函数。在此基础上,研究了由双积分器回路构成的基于CCII全集成连续时间带通滤波器;分析了中心频率p,和Qp,与误差函数幅值E和相位E之间的关系;探讨了CCII非理想因素对p,和Qp的影响。所得结论为设计基于CCII的MOSFET连续时间高阶滤波器提供了依据和改进途径。
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关键词:
- 电流传输器; 全集成滤波器; 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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