Filterlab 2.0 是一种创新的软件工具，可以简化有源滤波器设计。
Filterlab 2.0有源滤波器设计软件提供完整的滤波电路原理图以及推荐的元件值，
并显示频率响应。
Filterlab 2.0 允许设计最高至8 阶频率响应从0.1HZ 到1MHZ 的
切比雪夫，贝塞尔或巴特沃斯滤波器。FIlterlab 2.0 还可以用来设计
切比雪夫和巴特沃斯响应的代桶和高通滤波器。Filterlab 2.0 支持塞
林凯（Sallen Key）和多路反馈（MFB）的电路拓扑结构。低通滤波
器既可以采用塞林凯也可以采用MFB 结构，带通滤波器可用MFB
结构，高通滤波器可采用塞林凯结构。(Filterlab 2.0 is an innovative software tool that simplifies active filter design.
Filterlab 2.0 active filter design software provides a complete schematic of the filter circuit and recommended component values.
And show the frequency response.
Filterlab 2.0 allows design up to 8th order frequency response from 0.1HZ to 1MHZ
Chebyshev, Bessel or Butterworth filter. FIlterlab 2.0 can also be used to design
Chebyshev and Butterworth responded with bucket and high-pass filters. Filterlab 2.0 Support Plugs
The circuit topology of Sallen Key and Multiple Feedback (MFB). Low-pass filtering
The device can use either Selling Kay or MFB structure, and the bandpass filter can be used as an MFB.
Structure, high-pass filter can use Sellingkai structure.)