基于LTC1562有源滤波器的设计与实现  

The Design and Implementation of Filter Based on LTC1562

作　　者：冉茂华[1] 陈三宝[1] 

机构地区：[1]武汉理工大学,湖北武汉430063

出　　处：《中国有线电视》2005年第19期1974-1976,共3页China Digital Cable TV

摘　　要：滤波器是一种使有用频率信号通过而同时抑制或有效衰减无用频率信号的电子装置,工程上常用它进行信号处理、数据传送和抑制干扰等。有源滤波电路一般由RC网络和集成运放组成,在合适的直流电源供电的情况下才能起滤波作用,它具有信号放大功能且输入/输出阻抗容易匹配,目前在音频处理、工业测控等领域有着广泛的应用。在介绍LTC1562的特点的基础上,给出了利用FILTERCAD软件设计的一个6阶Butterworth带通滤波器的应用电路及实测结果。Filter is an electronic equipment which not only can make useful frequency signal get across but also restrain and reduce useless frequency signal. It is often used in signal processing, data transformation and restrain disturbance. Filter circuit is always composed of RC network and operational amplifier. In the case of proper DC supply, it has filter function, signal amplifying and input/output resistor matching. At present, it has good application in voice processing, industry measuring and controlling. This article based on the instruction of LTC1562＇s characteristics, gives a six order Butterworth band-pass filter applying circuit and practicably measuring result which is avail of the Filter CAD software.

关 键 词：滤波器 LTC1562 FILTER CAD 

分 类 号：TN713[电子电信—电路与系统]