What's Inside a Quartz Crystal Resonator

[@hoofheartedicemelted296]

I have already subscribed when I saw the quality of technical expertise. Even as a virtual novice to electronics I recognise in depth knowledge of the subject matter. Regardless sir, if I may. Why do crystal oscillators operate at such high frequency, are there non capable of operating in the hertz region? Why must they all operate in mhz/ghz? Thank you sir.

[@ElectronicsNotes]

They operate at frequencies that are normally above 1 MHz because of the physical sizes needed. The crystals use physical vibrations and resonances - to get very low frequency resonances, they would need to be very large.

[@Pippo.Langstrumpf]

I wonder, why the crystal oscillator doesn't generate a pure sine wave?

[@ElectronicsNotes]

It should produce a pretty good signal - it will be spurious products that will give distortion. So may be there is too much feedback in the circuit. That said, so crystal oscillator units are designed to give a digital square waveform out. They take the basic sine wave and square it up so that it can act as a clock oscillator for a logic / digital circuit.

[@Mashallahsala]

@@ElectronicsNotes so the reason would be the analog to digital conversion? thats pretty neat!

[@ElectronicsNotes]

Well it's not digital to analogue in the conventional meaning of the terminology. It is just that the waveform is often squared up so it can interface to digital circuits.

[@ahmednor5806]

💐💐💐

[@ahmednor5806]

Thanks too much

[@ElectronicsNotes]

Glad to have helped.