2021-02-13 22:28:43 +00:00
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### PI Attenuator
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2019-10-01 07:56:35 +00:00
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__Zin__ desired input impedance in Ω<br>
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2019-09-29 16:54:14 +00:00
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__Zout__ desired output impedance<br>
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__Zin = Zout__<br><br>
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* __a__ attenuation in dB
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* __L = 10<sup>a/20</sup>__ (the loss)
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2021-02-13 22:28:43 +00:00
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* __A = (L + 1) / (L - 1)__<br><br>
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* ___R2 = (L- 1) / 2 \* √ ( (Zin \* Zout) / L)___
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* ___R1 = 1 / (A / Zin - 1 / R2)___
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* ___R3 = 1 / (A / Zout - 1 / R2)___
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