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本文根据开关电容滤波器(即两个电容器的电行转移和电容器的电荷存储能力)的原理,讨论开关电容器网络的分析程序。这种分析法产生结点导纳矩阵,从这一矩阵可得到该网络的所有需要的特性。此外,本文接连续和离散频域考虑滤波器设计的关系,并给出电路实例。文中,也讨论了具有电压转换开关的滤波器.二级级联滤波器和RC有源电路的模拟问题。最后,举例说明一种具有电压转换开关的NMOS集成化三阶低通滤波器。
This article based on the switched capacitor filter (ie, the transfer of two capacitors and capacitor charge storage capacity of the principle), discussing the switched capacitor network analysis program. This analysis produces a node admittance matrix from which all the required properties of the network are available. In addition, the paper considers the relationship between filter design in continuous and discrete frequency domain, and gives the circuit example. The paper also discusses the filter with voltage switch, the simulation problem of two-stage cascaded filter and RC active circuit. Finally, an NMOS integrated third-order low-pass filter with a voltage transfer switch is illustrated.