基于单片机控制的程控有源滤波器电路  

Programmable control active filter circuit based on microcontroller

作　　者：赵世强[1] 周义健[1] 刘霞[1] 

机构地区：[1]空军工程大学,陕西西安710077

出　　处：《国外电子元器件》2008年第4期42-44,共3页International Electronic Elements

摘　　要：集成开关电容有源滤波器具有良好的幅频特性,改变其开关频率,就可方便地改变滤波器的工作频率。利用单片机灵活控制特点,实现对集成开关电容滤波器的工作频率、品质因数Q和工作方式的程控。The amplitude-frequency characteristic of integrated switch-capacitor filter is very well. The operating frequency of active filter can be changed easily by altering its switch frequency.Because the control ability of the microcontroller is very power, it is easy to change the operation frequency,quality factor and operation modes of the integrated switch-capacitor filter by using the microcontroller.

关 键 词：开关电容有源滤波器 中心频率 品质因数 MAX262 

分 类 号：TN713.92[电子电信—电路与系统]