Passive Filter Design (被动滤波器设计) Fundamental Active Building Blocks of Filter (主动滤波器设计) .
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The variable impedance scaling method for design of SCN has been improved in the Paper, the resulting is that the analogue filter can be realized by Passive SCN.
改进了目前采用的开关电容网络阻抗标度设计法，使模拟滤波器可以用无源开关电容网络完成。
A passive loop filter scheme and the design method of the filter for current charge pump PLL frequency synthesizer chip are given in the paper.
针对电流型电荷泵PLL频率综合器芯片，提出一种称为极值相位裕量的无源环路滤波器方案和设计方法。
This method is also suited to design approximation function of passive filter.
这种方法同样适用无滤波器的近似函数设计。
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