New Resistorless Current-Mode Quadrature Oscillators Using 2 CCCDTAs and Grounded Capacitors

被引：0
|
作者：
Sakul, Chaiwat [1 ]
Jaikla, Winai [2 ]
Dejhan, Kobchai [1 ]
机构：
[1] King Mongkuts Inst Technol Ladkrabang, Fac Engn, Res Ctr Commun & Informat Technol, Bangkok 10520, Thailand
[2] Suan Sunandha Rajabhat Univ, Fac Ind Technol, Dept Elect Technol, Bangkok 10300, Thailand
来源：
RADIOENGINEERING | 2011年 / 20卷 / 04期
关键词：
Sinusoidal oscillator; CCCDTA; current-mode; OTA; FREQUENCY; DESIGN; OUTPUT;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The current-mode quadrature oscillators using 2 current controlled current differencing transconductance amplifiers (CCCDTAs) and 2 grounded capacitors are presented. The proposed oscillators can provide 2 sinusoidal output currents with 90 phase difference. The oscillation condition and oscillation frequency can be electronically/independently controlled by adjusting the bias current of the CCCDTA. High output impedances of the configuration enable the circuit to drive the external load without additional current buffers. The use of only grounded capacitors is ideal for integration. The PSpice simulation results are depicted. The given results agree well with the theoretical anticipation.
引用
收藏
页码：890 / 897
页数：8
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