I have been working on a project that utilizes a 10MHz Oscillator and 28V input power. At the start of my project, I used a DC/DC converter which took my 28V line and moved it to a 5V line. I then used this line to power my Oscillator. After hooking this up to my scope, I saw that the noise really affects my signal after the Oscillator, its only slightly noticeable, but the part this plugs into expects a very accurate 10MHz line.. .
In my original design I had my ground of the 5V grounded up with the 28V line, but I was told that I should not do this, and instead have a small local ground to the oscillator. Additionally I was told that I should keep the wires as close to each other as possible to reduce some more noise. I redesigned, and it worked, but very minimally did it change the amount of noise.
I was told that using filters is the way to go, but everwhere I look I can't really see what exactly I'm looking for or what I should be doing exactly.
Here is my schematic at the moment:
With the imoportant aspects of this project:
DC/DC Converter: XP Power JCM2024S05
- Variable Input, Output 5V, 4A Max draw output
Oscillator : Abracon LLC AOCTQ5-X-10.000MHZ-I3-SW
- 5V input, 10MHz Out, Pulls 5W
Could anyone point me towards a nice source on the subject or some nice tips/pointers/help on my specific problem? Anything would be so much appreciated.