Simple quadrature sinusoidal oscillator with orthogonal control using sigle active element

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 osci...

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Bibliographic Details
Main Authors: Pourak, T., Suwanjan, P., Jaikla, W., Maneewan, S.
Format: Conference Proceeding
Language:English
Subjects:
Capacitors
CMOS integrated circuits
Frequency control
oscillator
Oscillators
Resistors
sinusoidal signal
Transconductance
VDTA
Voltage control
voltage-mode
Online Access:Request full text
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Summary: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.
DOI:10.1109/EDSSC.2012.6482793