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Homework Help: Crystal Oscillator Package (4 pins)

  1. Dec 14, 2014 #1
    1. The problem statement, all variables and given/known data
    I'm trying to hook up crystal oscillator package on breadboard and test for expected operation: I'm not sure how and cannot find any data sheets for the pin connection diagrams, I attached an image I found of the kind of package I'm using. There are four pins.

    2. Relevant equations; Attempt Solution

    The package is supposed to be equivalent to a CRL series circuit in parallel with another capacitor, as if you were measuring over the capacitor in parallel. (I attached a diagram). The values for the elements in the C-CLR circuit are for a .5 MHz crystal oscillator (that's what's given in my text)...I have crystal oscillator packages with varying operation frequencies...but I think I can assess how it should behave just by comparing to C-CLR circuit. I just don't know how to wire a crystal exactly...is there a ground?

    Attached Files:

  2. jcsd
  3. Dec 14, 2014 #2


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    Staff: Mentor

    It will probably look something like this:

  4. Dec 14, 2014 #3
    Thanks. I think this will work. So it looks like I'll have to wire up one of the test circuits TTL or LSTTL to test its' operation? Ouch!
  5. Dec 20, 2014 #4

    rude man

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    Homework Helper
    Gold Member

    You can skip the 15pF output capacitor; it's just there to test for worst-case loading.
    So you're left with one 0.1uF capacitor across the power supply pins. Not much of an 'ouch', is it?
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