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Which of the following noise is caused due to sensitivity to an acceleration of crystal?(a) Oscillator reference noise(b) Oscillator turning port noise(c) Power supply noise(d) Vibration induced noiseThe question was asked during a job interview.My enquiry is from Crystal Oscillator-2 topic in chapter Oscillators of Analog Circuits

Answer» CORRECT ANSWER is (d) Vibration induced noise

The explanation is: Quartz crystal oscillator frequency changes slightly when accelerated. This means that random and periodic MECHANICAL vibrations in the DEVICE can cause significant PHASE noise in the outpu


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