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Forum Post: RE: Formula for LDC1000 resonant frequency and frequency counter accuracy

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Hi Sunny,

I'm afraid I don't follow.

C = 1000pF and for no object near, L = 640.5uH and Rs = 222ohm ...

Rp = L/(Rs*C) = 2.89k ohm

f = 191 kHz

Are these outside the allowed range for the LDC1000?


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