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Arduino uno board crystal

Discussion in 'Microcontrollers, Programming and IoT' started by mrel, Jul 18, 2013.

  1. mrel

    mrel

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    0
    Jul 2, 2008
    Hello

    On the Arduino uno board there is 16 mhz crystal.

    Does anyone know if this 16 mhz crystal is it SERIES type crystal or is it 16 mhz crystal a 18 PF or 20PF crystal?

    Thank for the help mrel
     
  2. donkey

    donkey

    1,286
    56
    Feb 26, 2011
  3. mrel

    mrel

    79
    0
    Jul 2, 2008
    What kind of crystal on the arduino uno broad

    The thread i post about the crystal,what i trying to find out is what kind of crystal on the arduino uno broad I know it a 16mhz crystal But is it a (series type) or (18pf type) or (20pf type).

    Because went to Digikeys website to buy crystal.

    Digikeys lists three different type crystals there are series,18pf,20pf.

    So question is what kind of crystal on the arduino uno broad (series ,18 pf,20pf ).
    The schematic don't say if it a (series ,18pf, or 20pf ) only say it 16mhz crystal.
    mrel
     
  4. davenn

    davenn Moderator

    13,294
    1,758
    Sep 5, 2009
    the schematic donkey linked to shows the 22pF caps

    crystals DONT have capacitors in them

    Dave
     
  5. duke37

    duke37

    5,231
    718
    Jan 9, 2011
    A crystal has a series resonance frequency and a parallel resonance frequency. These are very close together. I would think that either crystal will work but the frequency may not be spot on 16 MHz. You will not be able to find a 16 mHz crystal !! :) :)
     
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