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| _HKI ("### Pi Attenuator\n" "___a___ is attenuation in dB<br>\n" "___Z<sub>in</sub>___ is desired input impedance in Ω<br>\n" "___Z<sub>out</sub>___ is desired output impedance in Ω<br>\n" "\n" "___K = V<sub>I</sub>/V<sub>O</sub> = 10<sup>a/20</sup>___<br>\n" "___L = K<sup>2</sup> = 10<sup>a/10</sup>___<br>\n" "___A = (L+1) / (L−1)___<br><br>\n" "___R2 = (L−1) / 2·√(Z<sub>in</sub> · Z<sub>out</sub> / L)___<br>\n" "___R1 = 1 / (A/Z<sub>in</sub> − 1/R2)___<br>\n" "___R3 = 1 / (A/Z<sub>out</sub> − 1/R2)___\n" "") |
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◆ _HKI()