On the dynamics of ECL inverter based Ring Oscillators

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Sandeepa Sarkar, Bishnu Charan Sarkar

Abstract

The effect of electrical variations in free running frequency and in the dynamics of BJT based Ring Oscillator (RO) have been thoroughly examined in this paper. Techniques of electronic frequency tuning of an emitter coupled inverter based RO have been experimentally studied. The oscillation frequency of the RO depends on the dc reference voltage and the dc bias current. An analytical explanation of the observed results has been incorporated in this paper. The dynamics of the said hardware experimental circuit also have been scrupulously examined. It is observed that a periodic oscillation starts for a given reference voltage and gradual variations of the reference voltage in this region give rise to different multi periodic and chaotic oscillations. A higher order nonlinear mathematical model of the RO circuit has been proposed and the system has been numerically studied. The numerical simulations results support the experimental observations.

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How to Cite
, S. S. B. C. S. (2018). On the dynamics of ECL inverter based Ring Oscillators. International Journal on Future Revolution in Computer Science &Amp; Communication Engineering, 4(2), 424–431. Retrieved from http://www.ijfrcsce.org/index.php/ijfrcsce/article/view/1235
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