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kicad/pcb_calculator/attenuators/bridget_tee_formula.md

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Zin desired input impedance in &#8486
Zout desired output impedance Zin = Zout

Bridged tee attenuator:

  • a attenuation in dB
  • L = 10a/20 (the loss)
  • R1 = Zin * (L - 1)
  • R2 = Zin / (L - 1)