Generation of Sinusoidal Voltage (Current)-Controlled Oscillators for Integrated Circuits
- 1 March 1972
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuit Theory
- Vol. 19 (2) , 137-141
- https://doi.org/10.1109/tct.1972.1083421
Abstract
Sinusoidal oscillators with large tuning range and small harmonic distortion offer various applications in integrated electronics. In this paper a method of generating sinusoidal voltage-controlled oscillators (VCO) and/or current-controlled oscillators suitable for integrated circuits is presented. Each oscillator circuit contains two fixed resistances, two fixed capacitances, and amplifiers. It is shown that one amplifier can be used to confine the natural frequencies of the circuit on thejaxis of the complex frequency plane, and the other amplifier (or amplifiers) can be used to effectively increase or decrease theRCtime constant and hence change the oscillation frequencies.Keywords
This publication has 4 references indexed in Scilit:
- Integrated voltage-controlled oscillators using distributed parameter phaseshift networksPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1969
- Temperature-compensated integrated oscillatorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1968
- A network transformation for active RC networksProceedings of the IEEE, 1967
- The Synthesis of Integrable, Nearly Sinusoidal, Potentially Bistable OscillatorsIEEE Journal of Solid-State Circuits, 1966