实现高精度二阶有源滤波器的一种新方法  

A New Method for Realizing the High Precision Second-Order Active Filters

作　　者：姚福安[1] 魏爱荣[1] 

机构地区：[1]山东大学控制科学与工程学院,山东济南250061

出　　处：《系统工程与电子技术》2003年第4期413-416,共4页Systems Engineering and Electronics

摘　　要：推导出了滤波器的“积分-求和”代数表达式,给出了PAC块的传递函数,介绍了利用在系统可编程模拟器件ispPAC10实现二阶有源滤波器的方法步骤。该滤波器具有工作稳定可靠、特性参数调整方便、设计成本低廉、保密性强等特点。Integral-summation algebraic expression of filters is derived. The transfer function of programmable analog circuit (PAC) block is given and the procedure to accomplish the functions of the second - order active filters with ispPACIO is introduced. The filter features a stable and reliable performance, convenient regulation of characteristic parameters, low design cost and high security.

关 键 词：有源滤波器 ISPPAC 幅频响应 相频响应 传递函数 

分 类 号：TN713.8[电子电信—电路与系统]