摘要
提出把通用双二阶滤波器视为负反馈放大器的观点,根据反馈电路的基本方程,利用4个CFA、10个电阻、2个电容构成了该滤波器,其特点是极点角频率与品质因素独立可调;具有低的无源灵敏度。该设计法概念清晰。
A perspective of general double two order filter equated to negative-feedback Amplifier is proposed and the filter is presented by four CFAs, ten resistances, two capacitors on the basis of basic equation of feedback circuit. The pole angular frequency and the quality factor of the filter can be tuned independently The technique is clearer.
出处
《电子测量技术》
2005年第1期28-28,30,共2页
Electronic Measurement Technology
