- #1

cyclone24

- 35

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How does one determine the decoupling capacitor value in a circuit that is prone to EMI? For example, I need to remove the noise at 400 MHz. I use the resonant frequency formula

f = 1/ (2pi*sqrt(L*C))

What should be the value of inductance L in the equation? how to determine the L value in the cables?

Thanks!