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Crystal vs Resonator

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brodin

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Is there any difference in performance between using a Crystal or a Resonator?

I have a very timing sensitive project. Can i use Resonators for that, or is there any drawbacks?
 
As far as I know they're esentially the same. A resonator just has the 2 little cap's you need built into it.
 
Crystals are more accurate, ceramic resonators are a cheaper alternative for when it's not too critical - although a ceramic resonator is still pretty good.
 
Okay! The resonator has three pins. What is pinout?

I guess the middle is GND and the others, i can connect directly to OSC1 and OSC2 on my PIC. Is that correct?
 
yes and if it doesn't work, add those little capacitors...
 
brodin said:
Okay! The resonator has three pins. What is pinout?

I guess the middle is GND and the others, i can connect directly to OSC1 and OSC2 on my PIC. Is that correct?

Yes, generally if it's got three pins it's got internal capacitors, if it's only got two pins, it needs external ones.
 
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