Minimum component SRCO and VFO using a single DVCCC

Authors:
Varun Aggarwal;Selçuk Kılınç;Uğur Çam
Affiliations:
Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, USA;Department of Electrical and Electronics Engineering, Dokuz Eylül University, Izmir, Turkey;Department of Electrical and Electronics Engineering, Dokuz Eylül University, Izmir, Turkey
Venue:
Analog Integrated Circuits and Signal Processing
Year:
2006

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Abstract

Two oscillator topologies each employing a single differential voltage complementary current conveyor (DVCCC) are presented. The first oscillator uses a single active element, five passive components, grounded capacitors, has independent control of frequency and condition of oscillation. It has a current mode output and can be extended to provide a voltage mode output. It combines all the features of the current state-of-art oscillators. The second oscillator uses a single DVCCC, four passive elements, grounded capacitors and provides independent control of frequency. This oscillator not only has all the desired oscillator features, but requires lesser passive components. Theoretical analysis of these oscillators was verified with SPICE simulations.