用SFG法设计OTA－C滤波器

Designing OTA-C Filter by SFG Approach

本文提出了由传递函数的信号流图（ＳＦＧ）直接设计ＯＴＡ－Ｃ滤波器的方法。成功的设计了未见发表的３种一阶电路和３种二阶电路，为ＯＴＡ－Ｃ滤波器的设计提供了一简捷、直观的方法。

In this parper an approach,which may directly design the OTA-C filters based on the SFG of the transfer function,is presented. By means of it,we have successfully designed three types of first-order circuits and three types of second-order circuits, which have not been issued so far and provide a simple and intuitive approach to design OTA-C filters.