Choosing capacitors for a full swing oscillator and an ATmega328P

Question

I am relatively new to embedded electrical engineering. Iam attempting to rebuild the Arduino Uno PCB for learning. I am familiar with the Pierce oscillator and LC circuits and some of the math around them.

I noticed on the ATmega328P datasheet that while the Arduino uses a low power crystal oscillator (as shown), to get a more robust clock signal you can use a full swing oscillator

I found the following 16MHz full swing oscillator.

The ATmega328P datasheet suggests that 22pF caps should be used:

It is not clear to me how (if at all) capacitors would be applied. The full swing oscillator data-sheet states that it has a maximum output load of 15pF, however I am unsure how this works into the problem.

Below is a tentative attempt at how one might connect the components. What is the correct configuration and why?

Answer 1

Your confusion comes from the fact that the Abracon ASE module that you’ve chosen is not an oscillator crystal but rather a full-fledged external clock source. In order to use it with your Arduino you’d need to configure it to use an external clock (section 9.8 in your ATmega328P datasheet).