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Crystal load capacitors कैलकुलेटर

A crystal's datasheet states its load capacitance Cₗ. The two caps sit in series as seen by the crystal, and the board adds stray capacitance Cₛ (~3–5 pF of traces and MCU pins) — so each cap is C1=C2=2(CL−Cs).

Too much capacitance pulls the frequency low and can stop a weak oscillator; too little runs it fast.

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