Abstract
Two new electronically controllable sinusoidal oscillators each employing two Voltage Differencing Inverting Buffered Amplifiers (VDIBAs), two capacitors, and a single resistor have been proposed. The presented oscillators offer independent electronic control of Condition of Oscillation (CO) and Frequency of Oscillation (FO), and low active and passive sensitivities. The effect of non-idealities of the VDIBAs on the proposed oscillators is also investigated. The validity of the proposed structures has been confirmed by SPICE simulation with TSMC 0.18 µm process parameters.
Highlights
The feasibility of the proposed sinusoidal oscillators has been confirmed by SPICE simulation with TSMC 0.18 μm process parameters
In [11], authors proposed electronically controllable sinusoidal oscillator employing CMOS VD-DIBAs in which the Condition of Oscillation (CO) is controlled through a resistance, whereas Frequency of Oscillation (FO) is electronically controllable by the transconductance of the VD-DIBA
A fully uncoupled electronically controllable sinusoidal oscillator employing VD-DIBAs was presented in [12], where CO and FO both are electronically controllable through a separate transconductance of the VD-DIBAs but the circuit uses four passive elements
Summary
Two new electronically controllable sinusoidal oscillators each employing two Voltage Differencing Inverting Buffered Amplifiers (VDIBAs), two capacitors, and a single resistor have been proposed. The presented oscillators offer independent electronic control of Condition of Oscillation (CO) and Frequency of Oscillation (FO), and low active and passive sensitivities. The effect of non-idealities of the VDIBAs on the proposed oscillators is investigated. Reference [13], a fully uncoupled electronically controllable sinusoidal oscillator was presented employing four Current Controlled Current Conveyors (CCCIIs) and two capacitors.
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