摘要
基于可编程开关电容有源滤波器MAX262可通过改变外部时钟频率以及采用微处理器接口控制64级中心频率这一特性,给出了一种滤波器设计新方法,采用一个时钟频率,实现了多频点的带通滤波,WAVE仿真结果达到了设计的要求。
On the basis of the fact that a pmgrarnmable switched - capacitor active filters MAX262 can control the 64-step center frequency by changing the external dock frequency and adopting the microprocessor interface, a new technique for designing the band-pass filter is presented. Using one clock frequency, the muhi-frequency band-pass filter is implemented. The WAVE simulation results meet the design request.
出处
《电子科技》
2007年第1期13-16,共4页
Electronic Science and Technology
关键词
开关电容有源滤波器
MAX262
可程控
多频点
低频时码信号源
switched-capacitor active filters
MAX262
programmable
muhi-frequency
low-frequen- cy time-code signal generator
