Should 22pF do for a 20Mhz crystal?

[Keeze]

Hi all,

In the schematic for the Quad IIC Midi board, I find 15pF caps for running the crystal. I have only 22pF laying around (and used to use these with 16/20 Mhz crystals). Is there a specific reason to use 15pF or would 22pF do?

Cheers,

Kees

 

[latigid on]

I would hazard a guess that the caps are 20% or worse tolerance anyway? Have a go I say.

[Keeze]

That were my thoughts to, but always worth to check, tnx ;)

[CJ55]

The value of the caps depends also on the crystal/quartz. Some need 18pF, other 32pF for example. Check the data sheet of the crystal/quartz you are using.

[Keeze]

Found the datasheet... 10 to 32 pF, so 22 should do the trick

[Keeze]

And working :)