Are there any examples of crystals that work reliably with the W5500.

No reference schematic defines with which crystals it works.

Most of them use 18pF as load capacitors.

According to the formula `CL = C1 / 2 - Cs`

the load capacitance of the crystal would have to be between 14pF and 16pF (assuming 5pF to 7pF stray capacitance).

On the other hand the Crystal Selection Guide Application Note for the W5100S (which is supposedly also valid for the W5500) states that a crystal with 14pF load capacitance and 7pF shunt capacitance (which most crystals seem to have) can have at most 25 Ohms ESR to satisfy the gain margin criteria for stable operation.

Neither DigiKey nor Mouser sell crystals that match these criteria, so I am somewhat at a loss at the moment.

Can somebody please list parts that would work? Preferable with matching load capacitor values?

Or did I misunderstand something?