Dual Mode Quadarature Oscillator Based on VD-DVCC for Signal Processing Applications

In this research presents a dual-mode quadrature oscillator with a minimal component count. The design employs a single Voltage Differencing Differential Voltage Current Conveyor (VD-DVCC), along with two grounded capacitors and two grounded resistors. The oscillator simultaneously provides both current and voltage outputs. Importantly, the frequency of oscillation (FO) and the condition of oscillation (CO) can be adjusted independently. The circuit is validated through simulation at a designed frequency of 2.6971 MHz using 0.18 μm CMOS technology in Cadence design software, operating with a supply voltage of ±0.9 V.