by Eeyore <rabbitsfriendsandrelations@[EMAIL PROTECTED]
>
Feb 26, 2008 at 07:15 PM
ClueLess wrote:
> Eeyore wrote:
>
> >I'd check that the watch crystal is designed to be used with 33pF caps.
> >The first one I looked at is designed for use with 12pF caps.
>
> Well, it started working when I caught hold of the crystal with my
> fingers :-(
You mean it's OK now ? Good to hear.
> True, it seems to want more capacitor.
I expected it to want less capacitance actually !
> But it is totally not in agreement with what I have read.
>
> How this can be?
Do you have the manufacturer's data for that specific crystal you are
using
? If not, you need to get it.
Beware of things like stray capacitance from PCB traces and also it may be
a
good idea to ground the cystal's metal can.
Graham
