一种基于双二阶的六阶开关电容滤波器的设计和仿真  

Design of Six Order Switch Capacitor Filter and Its Simulation Based on Biquard

作　　者：林莉[1] 刘延申[1] 

机构地区：[1]华中师范大学物理科学与技术学院,湖北武汉430079

出　　处：《南京师范大学学报（工程技术版）》2004年第3期45-48,共4页Journal of Nanjing Normal University(Engineering and Technology Edition)

摘　　要：从开关电容滤波器的原理出发 ,通过MATLAB的仿真 ,在时钟频率与中心频率的比值达到一定数值的时候 ,把S域函数进行变换 ,用信号流图的方法设计模拟滤波器 ,从而提高滤波器的精度和可靠性 ,并在 0 .2 5The principle of the switch capacitor filter was studied. The transfer of the S domain function was dealt with when the ratio of the clock frequency to the central frequency reached a certain value. The analog filter was designed by adopting the signal graph method to improve the precision and the reliability, with the function realized in the CMOS circuit of 0.25?μm.

关 键 词：开关电容 滤波器 MATLAB 信号流图 

分 类 号：TM52[电气工程—电器]