STABLE US A ROCK

摘要

Amplifier instability can show as spurious (unwanted) sig-nals in the frequency domain, sometimes only visible when there is a (wanted) output signal, at other times they can appear as noise 'humps' or unexpected decreases in output power or gain - appearing like a 'bite' out of the frequency response. Although in a system context they may be tolerable (low enough or in a non-interfering part of the spectrum) they are indicative of a design that could be better controlled.