基于CMOSMOCCCII的电调谐电流模式多功能滤波器  

Electronically Tunable Current-Mode Multifunction Filter Based on CMOS MOCCCII

作　　者：曾翠平[1] 王卫东[1] 

机构地区：[1]桂林电子科技大学信息与通信学院,广西桂林541004

出　　处：《微电子学》2010年第4期543-546,共4页Microelectronics

基　　金：广西科学研究与技术开发计划资助项目(0731021)

摘　　要：设计了一种基于CMOS多输出第二代电流控制传输器(MOCCCII)的可调谐电流模式双输入、多输出多功能滤波器。该滤波器仅由两个CCCII、一个接地电阻和两个接地电容组成。选择输出端中的一个或它们的组合,即可实现低通、带通、高通、带阻和全通5种二阶滤波功能。电路结构简单,且固有频率oω和品质因数Q可独立调节;具有较低的有源和无源灵敏度。HSPICE仿真结果表明,设计的电路是正确的。An electronically tunable current-mode multifunction filter was designed by using CMOS multi-output second generation current controlled conveyors（MOCCCII） with two inputs and multi-output.The filter consisted of only two MOCCCIIs,a resistor and two grounded capacitors.By either selecting one of output terminals or properly connecting several output terminals,the circuit could realize low-pass,band-pass,high-pass,band-stop and all-pass filtering functions.The circuit features a simple structure,and offers an independently electronic control of natural frequency ωo and quality factor Q,and it has very low sensitivities with respect to active and passive components.Results from HSPICE simulation validate the design.

关 键 词：CMOS 多输出第二代电流控制传输器 多功能滤波器 电调谐电流模式 

分 类 号：TN713[电子电信—电路与系统]