Olin,

On Wed, 18 May 2005 19:43:15 -0400, Olin Lathrop wrote:

> Charles Craft wrote:
> > If the pin spacing of a crystal matches the outer pins of a ceramic
> > resonator then adding the PTH for the center ground pin on the
> > resonators sounds like a pretty cool solution.
> 
> OK, I'll have to look into that.  I've never used a resonator myself.  I
> guess I just haven't run into any high volume designs that needed pretty
> good but not really accurate PIC frequency.

I agree that this would be a good addition - I've got loads of resonators of various frequencies with the 
central 0V pin for the internal capacitors.  One reason to use them is that they are more robust than crystals 
(which can actually break if you shock them hard enough) and they seem to be more reliable at starting up if 
conditions aren't optimum.  I always use them unless there's a real reason to use a crystal.

Cheers,


Howard Winter
St.Albans, England


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