I'm using this
ECS-240-10-36-CKM-TR part with this
IC
The load capacitance mentioned in the crystal datasheet is 10pF and the shunt capacitance is 5pF.
In the design, the load capacitors that I have placed with the IC are 18pF and the design works fine. A stray capacitance of 2pF is considered for the calculation.
I made this load capacitor calculation considering the below formula from the datasheet.
What I noticed is that, even without considering the shunt capacitance value of 5pF (as mentioned in the crystal datasheet), I calculated the value of load capacitors which turned out to be 18pF, and started working with this design.
Considering the shunt capacitance (5pF) of the crystal in the formula, the value of the crystal load capacitors comes to around 8pF. But I placed 18pF. There is a significant difference, right?
Now, my question is, the equation from the datasheet mentions including the shunt capacitance in the formula for load capacitor calculation. Whereas, I calculated the value of load capacitors without considering the shunt capacitance. But the design seems to be working.
Would there be any problem in the future?