10 MHz CMOS OTA-C voltage-controlled quadrature oscillator
- 8 June 1989
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 25 (12) , 765-767
- https://doi.org/10.1049/el:19890517
Abstract
A quadrature-type voltage-controlled oscillator with operational transconductance amplifiers and capacitors (OTA-C is presented. A monolithic integrated CMOS test circuit is introduced to verify theoretical results. The attainable frequency range of oscillation of the chip test circuit is 3–10.34 MHz. The total harmonic distortion (THD) is 020– 1.87% for corresponding peak-to-peak amplitude voltages between 100 mV and 1 V. This amplitude can be controlled either by using a diode connection of two MOS transistors or a proposed nonlinear resistor.Keywords
This publication has 0 references indexed in Scilit: