Title :
Simple quadrature sinusoidal oscillator with orthogonal control using sigle active element
Author :
Pourak, T. ; Suwanjan, Peerawut ; Jaikla, Winai ; Maneewan, Suwat
Author_Institution :
Electr. Commun. Eng., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
The voltage-mode quadrature sinusoidal oscillator using single voltage differencing tranconductance amplifier (VDTA) and grounded elements is presented. The proposed oscillator can provide 2 sinusoidal output voltages with 90° phase difference. The condition of oscillation (CO) and frequency of oscillation can be electronically/orthogonally controlled by adjusting the bias current of the VDTA. The use of only grounded elements is ideal for integration. The PSpice simulation results are depicted. The given results agree well with the theoretical anticipation.
Keywords :
amplifiers; integration; operational amplifiers; oscillations; oscillators; 2 sinusoidal output voltages; PSpice simulation; VDTA; bias current; electronic-orthogonal control; grounded elements; orthogonal control; oscillation condition; oscillation frequency; phase difference; sigle active element; single voltage differencing tranconductance amplifier; voltage-mode quadrature sinusoidal oscillator; CMOS integrated circuits; Capacitors; Frequency control; Oscillators; Resistors; Transconductance; Voltage control; VDTA; oscillator; sinusoidal signal; voltage-mode;
Conference_Titel :
Electron Devices and Solid State Circuit (EDSSC), 2012 IEEE International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4673-5694-7
DOI :
10.1109/EDSSC.2012.6482793
