simulating cd4060 with a crystal

danadak

Joined Mar 10, 2018
4,057
Look at datasheet, its recommended load C is 12.5 pF or less.

A starting point would be 10 pF at input to xtal, 20 at output. That actually
produces some G thru the network.


Regards, Dana.
 

danadak

Joined Mar 10, 2018
4,057
The cap right after 330K is input to xtal cap,

https://www.google.com/search?q=cd4...AUIDigB&biw=1920&bih=937#imgrc=ybiQOHW6N3AaSM:

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

Regards, Dana.
 
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