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Recent content by kbzium

  1. K

    Quartz oscillator - why it has so high Q?

    Thanks guys! Guess i know everything about quartz :-). But what about that: There is a LC circuit with no L,C given. We have only f0 = 1MHz and Q0=20. That would be easy, but there is a load connected - RL = 50kOHM. We have to obtain frequencies for which impedance of this circuit loose 3dB to...
  2. K

    Quartz oscillator - why it has so high Q?

    So the thing is that there are no real L,C,R but an QO just acts like they were there? And real inductance (such high with small loses) simply doesn't exist so it can't be anywhere near to QO in terms of quality, yeah? Is it that simple :-)? Another thing: There is a LC circuit with no L,C...
  3. K

    Quartz oscillator - why it has so high Q?

    Let's say that i know "math" :-). I know that r is low and L/C is high so Q is high too. But... why? Why L is so high and r&C are so low? Thanks!
  4. K

    Quartz oscillator - why it has so high Q?

    Hi there, why quartz oscillators has so high Q = 10000 or so? Thank you! I can't find it anywhere...

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