摘要
根据有源模拟带通滤波器的特点,设计了一种工作在低频段且Q值在0～10之间的常用二阶模拟带通滤波器,比较了不同Q值及不同级数级联后的带通滤波器产生的通频带特性,并结合实际电路的效果评价,指出了在设计中应该注意的一些要点。
According to the characteristic of the second-order analog bandpass active filter, a common filter is designed, whose frequency is low and Q value is between 0 to 10. The characteristics of transmission bands of the bandpass filter with different Q values and different series are compared. On the basis of the result of instances, some key - points in this design for the filter are pointed out.
出处
《电子科技》
2009年第1期9-12,共4页
Electronic Science and Technology
关键词
有源滤波器
带通滤波器
Q值
级联
低频
active filter
bandpass filter
in series
Q value
low frequency
