PCB layout question


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  1. #1
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    Default PCB layout question

    In reference to the capacitors for the oscillator, can you have them on one side of the PCB and the oscillator on the other? I'd like to put the oscillator about 4 inches away from the 22pF caps but wasn't sure if there were any concerns about the traces picking up noise and affecting the performance of the oscillator. I do have a ground plane on the PCB.

  2. #2
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    Default Re: PCB layout question

    Quote Originally Posted by Christopher4187 View Post
    In reference to the capacitors for the oscillator, can you have them on one side of the PCB and the oscillator on the other? I'd like to put the oscillator about 4 inches away from the 22pF caps but wasn't sure if there were any concerns about the traces picking up noise and affecting the performance of the oscillator. I do have a ground plane on the PCB.
    I was always told that the oscillator needs to be as close to the processor as possible, and the capacitors close as well

    Just what I was told, may or may not be correct.
    "I have noticed that even those who assert that everything is predestined and that
    we can change nothing about it still look both ways before they cross the street"


    -Stephen Hawking

  3. #3
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    Default Re: PCB layout question

    Like Andy already said, the capacitors need to be as close as possible to the oscillator. This eliminates noise in the lines.
    "No one is completely worthless. They can always serve as a bad example."

    Anonymous

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