Crystal oscillators are loosely divided because of the frequency they perform at and whether or not they are essential oscillators—get the job done with the frequency marked about the can or at even multiples of that (overtone oscillators). As you could see in the graph underneath, crystals have two resonant https://nowbookmarks.com/story18980986/the-smart-trick-of-bulk-crystal-oscillator-that-nobody-is-discussing