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32kHz crystal

Hi,
I have noticed that a 32kHz crystal has malfunctioned i.e. not oscillating, it is cracked, what could cause this to happen?
Thanks
 
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davenn

Moderator
Hi,
I have noticed that a 32kHz crystal has malfunctioned i.e. not oscillating, it is cracked, what could cause this to happen?
Thanks

you sure you are looking at the crystal ?

most will be in a tiny metal tube with 2 wires out one end less common for them is like in the link that Bertus supplied

32KHz-Crystal-420x315.jpg




and occasionally will be in a epoxy type encapsulation like ......

Tuning-Fork-Crystal-3-8X8-0mm-SMD.jpg_350x350.jpg



So is it like one of those or something completely different ?

Also as Bertus said, it would only crack is physically struck. They only have a tiny current / voltage associated with them


Dave
 

bertus

Moderator
Hello,

How did you test the crystal?
When it is a single crystal, you will need to make an oscillator with it.
In the attached PDFs you will find some oscillator schematics and other info for crystals.

Bertus
 

Attachments

  • Crystal_oscillators.pdf
    156 KB · Views: 3
  • understanding_quartz_crystals.pdf
    69 KB · Views: 2
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