摘要
研究相关高性能滤波的理论知识,利用电流模式电路信号处理速度快、频带宽的优势,来设计由CCCII(电流控制电流传输器)与OTA(跨导运算放大器)构成的滤波器,其中MCCCII为CCCII的多输入多输出型。设计了(F/I)频率电流转换电路,解决了现有F/I电路频率电流转换信号频率低、速度慢的问题,最后设计了(V/I)电压转电流电路;以上各部分电路有效级联实现了自适应CCCII-OTA滤波器。文章完成了具有滤波频率自适应功能的CCCII-OTA型滤波器,它实现了输入信号频率改变通频带的动态功能。它可以应用在频率测量、频率特性分析、谐波分析等信号检测领域,具有重要理论意义。
study 1 he relevant theoretical knowledge of high perfonnance filter, using 1 he current mode circuit and signal processing speed, wide bandwidlh advantages, designed by CCCII （current controlled conveyor） and OlA （operational timiscondtictanre ampli-fier） filters, wherein MCCCII is a multi output CCCII. Design （ F/ l） frequency current conversion circuit to solve the existing F/I circuit, frequency conversion current signal of low finequency, slow speed, the final design of the cunent voltage （ V/ l） circuit; the circuit effec-tively realizes the cascade adsptive CCQI-OTA filte. This paper finished CCCII-OTA 1 ype filter witii adaptive filtering frequency ftmetion, it realizes the dynamic function of the frequency of the input signal through 1 he change band It can be applied in the frequency measurement, frequency analysis, field hannonic analysis, signal detection, it has important theoretical significance.
出处
《信息通信》
2017年第5期44-47,共4页
Information & Communications
