基于ORCAD的滤波设计,代码很细致，很容易上手,可以直接应用-ORCAD filter design based code is very detailed, very easy to use, can be applied directly

基于ORCAD 的无源RC POLYPHASE 滤波器设计资料，包含有1阶，2阶，3阶滤波器的设计。可以直接打开进行仿真分析-ORCAD passive RC POLYPHASE based filter design information, including a first-order, second order, third-order filter design. You can directly open simulation analysis

利用电流传送器CCII实现的有源polyphase滤波器设计，ORCAD软件仿真的，可以直接打开，运行-Use of current conveyor CCII achieve active polyphase filter design, ORCAD software simulation, you can directly open and run