Bliley’s Post: The Secret to Low Phase Noise in Crystal Oscillator Circuits!

Quartz crystal oscillators are the high and mighty option for low phase noise and added frequency stability in circuit design. Yes, simple oscillators like those made with resistor-capacitor (RC) or inductor-capacitor (IC) resonators are fine for some circuits. But if you’re dealing with higher performance applications in aerospace, military, and space industries… you’re going to want a higher performance crystal oscillator that can maintain low phase noise & strong stability. Otherwise, you’ll risk deviating from the very specific (and many times critical) center frequency selected for your design.