Dostal, "
Simple oscillator with enlarged tunability range based on ECCII and VGA utilizing commercially available analog multiplier," Measurement Science Review, vol.
If it seems like small stuff, recall that the first products of Hewlett-Paekard, Silicon Valley's original computing giant, were frequency counters and a
simple oscillator for measuring sound.
If engineers do not consider testability during the design process, most likely they will use a
simple oscillator, which means boundary scan tests cannot control the clock.
Kuramoto comments, "Until [I received] a preprint of the Wiesenfeld paper, I had not imagined that such a
simple oscillator model could find any physical counterpart at such a quantitative level."
Figure A1 shows a
simple oscillator in which the resonator is modeled by a parallel RLC circuit and the active part of the circuit by an N-shaped nonlinear characteristic i = g(v).
Not surprisingly, there is a great deal of character to this
simple oscillator circuit.