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AD9272 active impedance matching

Question asked by Darius on Dec 13, 2012
Latest reply on Dec 17, 2012 by ginak

Hello,

I was reading the datasheet of AD9272 and I can't understand what does it mean with "combination" of Rfb1 and Rfb2 (of Figure 38) to give an equivalent "Rfb" (in equations 1 and 2), when they talk about active impedance matching. Also, what does the capacitor Csh do at the input of LNA?

 

Thank you.

 

Datasheet: http://www.analog.com/static/imported-files/data_sheets/AD9272.pdf

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