Low-Gain, range programmable temperature compensated voltage controlled oscillator.

摘要

A multirange low-gain voltage controlled oscillator generates a substantially temperature-independent oscillator signal. Each low-gain range is formed by utilizing a variable resistance to generate the oscillator signal. The oscillator signal is made to be substantially temperature-independent by utilizing a substantially temperature-independent constant current source to source a fixed current through the variable resistance and a temperature varying current which sinks and sources additional current to the oscillating circuit as temperature rises and falls, respectively. <IMAGE>