LC Filter Cutoff Frequency Calculator
Calculate cutoff frequency fc (-3dB point), resonant frequency f0, characteristic impedance Z0, and Q factor for LC filters.
RF standard: 50Ω; Video: 75Ω; Audio: 600Ω
Results
| Cutoff Frequency fc (-3dB) | — |
| LC Resonant Frequency f0 | — |
| Characteristic Impedance Z0 | — Ω |
| Quality Factor Q (at ZL) | — |
| Response Characteristic | — |
Formulas
f0 = 1 / ( 2π × √(L × C) )
Z0 = √(L / C)
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