Why Load Resistance is used in Crystal oscillator ?

[Praveen2.0]

Why 1M Ohm resistor is used across in xtalo and xtali Pins (or Across Crystal Oscillator?

 

[Bluejets]

https://electronics.stackexchange.com/questions/105335/load-resistor-across-crystal

 

[Praveen2.0]

https://electronics.stackexchange.com/questions/105335/load-resistor-across-crystal

Yes Sir, I tried that but I could not understand properly

 

[(*steve*)]

In the example circuit shown there, it provides a DC path that will ensure oscillation. The inverter shown there is typically a buffered inverter that internally has three inverting stages. If you study CMOS design, providing a feedback path like this to an odd number of inverting gates (>1) will ensure oscillation. The crystal will slow the oscillation to a frequency where it has a minima of series impedance, which may be the fundamental or an overtone.