Electronically Controllable Fully-Uncoupled Explicit Current-Mode Quadrature Oscillator Using VDTAs and Grounded Capacitors

作     者：Dinesh Prasad Mayank Srivastava Data Ram Bhaskar 

作者机构：Department of Electronics and Communication Engineering Amity School of Engineering and Technology Amity University Noida India Department of Electronics and Communication Engineering Faculty of Engineering and Technology Jamia Millia Islamia New Delhi India 

出 版 物：《Circuits and Systems》 (电路与系统（英文）)

年 卷 期：2013年第4卷第2期

页      面：169-172页

学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：VDTA Quadrature Oscillator Current-Mode Circuits 

摘      要：An electronically controllable fully uncoupled explicit current-mode quadrature oscillator employing Voltage Differencing Transconductance Amplifiers (VDTAs) as active elements has been presented. The proposed configuration employs two VDTAs along with grounded capacitors and offers the following advantageous features 1) fully and electronically independent control of condition of oscillation (CO) and frequency of oscillation (FO);2) explicit current-mode quadrature oscillations;and 3) low active and passive sensitivities. The workability of proposed configuration has been demonstrated by PSPICE simulations with TSMC CMOS 0.18 μm process parameters.