 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Microcontroller and PC projects : Smaller 20mhz X-tal...
| Author | Message | ||||
Zonker Guru  Joined: 18/08/2012 Location: United StatesPosts: 723 |
Morning fine folks... I am trying to layout a new PCB that will use the PIC32-470 MCU... In the design, I wanted to try to use a smaller package X-tal than the normal oblong metal can type... Was wondering if this type would work OK... I am not an expert at this by any means and was looking for any advice on a possible selection... 20mhz Crystal - ABM8G.zip Much thanks...  |
||||
Grogster Guru Joined: 31/12/2012 Location: New ZealandPosts: 7478 |
I don't see any reason why not. The PDF does say that you can specify in the part number, the load caps you plan to use, so I would be going for something like this one: LINK You would need to use 18pF caps instead of the 22pF used with the big crystal, but other then that, it should work perfectly. Naturally, I have not tested this myself, but there is no reason why it should not work. I have not looked at the frequency stability/tolerance vs the big crystal, but they are probably within a cat's whisker of each other. EDIT: Make link clickable. EDIT: Just checked the data for the TXC crystals I used in the MM+ stuff, and they have a frequency stability AND tolerance of +/-30ppm, so the Abracon crystal should be just about a perfect replacement for the through-hole one. The TXC crystals state 18pF load caps too, but I have been using 22pF on every board ever made, and never had an issue. Edited 2021-03-05 08:31 by Grogster Smoke makes things work. When the smoke gets out, it stops! |
||||
 Print this page |
