Current–mode quadrature sinusoidal oscillator using a single CCCCTA
Keywords:
Quadrature sinusoidal oscillator,, Current-mode,, CCCCTAAbstract
A current-controlled current-mode quadrature sinusoidal oscillator using current-controlled current conveyor transconductance amplifier (CCCCTA) as an active element is presented. The proposed circuit consists of one CCCCTA, two grounded capacitors and one MOS resistor. This circuit is beneficial to monolithic integrated circuit implementation by the use of only grounded capacitors. The proposed circuit offers the advantage of independent control of the oscillation condition and the oscillation frequency, availability of both voltage and current outputs of quadrature sinusoidal with 90° phase difference and low active and passive sensitivities. PSPICE simulation results which confirm theoretical predictions were provided.
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