S. Malde <PICLIST@MITVMA.MIT.EDU> wrote:

> I was wondering if anyone knows if a ceramic resonator is more
> robust than a crystal. I am using the pic in a environment where
> there is quite a lot of vibration and I'm not sure what type of
> oscillator to use. The pic will be running at 10Mhz, if that makes
> any difference.

Sheil:

Actually, frequency DOES make a difference.  At much lower
frequencies (like 500 KHz and below), the mass of the resonator is
high enough to make it very sensitive to shock and vibration.  At 10
MHz, though, the resonator's pretty small and, therefore, resistant
to damage.

Consult the manufacturer's data sheets for your particular
resonator's vibration specs.

-Andy


Andrew Warren - fastfwd@ix.netcom.com
Fast Forward Engineering, Vista, California
http://www.geocities.com/SiliconValley/2499