NOR Gate Pierce Crystal Oscillator

[@fabricendie982]

Nice video my friend. Keep up the good work, it will pay in the end 😊

[@NetworkXIII]

Fabrice Ndie Thank you for your kind words, my friend.

[@josephmaughan1635]

thanks for the education, should be a great help and a big change in my method of random engineering.

[@NetworkXIII]

Droid_4_U_look_not Thank you for commenting, I’m glad that you found it helpful.

[@imaginarypoint]

Excellent!

[@莫洪嘉]

Good video！ Do u have any idea with the extra pulses？ It‘s the harmonic components？

[@NetworkXIII]

Thank you for your kind words, I am glad that you enjoyed the video. I'm not really sure what was causing those extra pulses, however keep in mind that I was greatly exceeding the recommended supply voltage for the circuit when they began to appear.

[@shaker1144]

Dear sir, what’s the aim of using a load capacitance ? Thanks

[@NetworkXIII]

www.electronicdesign.com/technologies/analog/article/21795717/fundamentals-of-crystal-oscillator-design Load Capacitance Many crystal oscillators operate at the parallel resonance of the crystal and the load capacitance rather than the series resonance of the crystal’s LCR model. The load capacitance is defined as the effective capacitance, external to the crystal package, appearing between the crystal’s terminals. Crystal manufacturers therefore specify a load capacitance to set the crystal’s intended operating frequency. A different load capacitance will produce the wrong frequency.

[@shaker1144]

Network XIII great , thanks . But what’s the difference between operating at parallel than series resonance ?thanks.

[@NetworkXIII]

The frequency of oscillation will be slightly different in one mode compared to the other. In this circuit, the crystal is operating in parallel mode.

[@shaker1144]

Network XIII thanks, have a good day.

[@ralvarezb78]

Good stuff, 32kHz clock is not an easy task

[@sanskrutivs9435]

How did you find those components values?? Provide the formula

[@NetworkXIII]

Component values were provided by the manufacturer: source.z2data.com/2016/10/5/8/38/8/944/180020/ecs-3x8.pdf

[@sanskrutivs9435]

​@@NetworkXIII i want to give the gps trigger from Arduino to the oscillator circuit which works in hertz i.e output square wave in mega hertz so how to do it??

[@sanskrutivs9435]

@@NetworkXIII please reply

[@NetworkXIII]

@@sanskrutivs9435 I'm not sure of the maximum output frequency from an Arduino digital pin, it depends on which Arduino board you have.

[@y_x2]

Doing an oscillator with a gate is a bad idea.

[@NetworkXIIIOverload]

The crystal manufacturer put the example circuit using the logic gate in their datasheet.

[@y_x2]

@@NetworkXIIIOverload I have see so many of these oscillating on an harmonic. You need a special inverter to garantee that the circuit w orks all the time.

[@NetworkXIIIOverload]

@@y_x2 It worked just fine for me.

[@y_x2]

@@NetworkXIIIOverload It was a disaster in production! They disappear in the 1990s.

[@simonxiang1903]

@@y_x2I wonder how did these harmonics occur？