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The capacitor used in ad-fmcomms3 (70Mhz-6Ghz) board

Question asked by CDRFT Employee on Mar 23, 2016
Latest reply on Mar 24, 2016 by CDRFT

Hi, ADI

 

I download the BOM of ad-fmcomms3 board, the AC-Couple capacitor in the signal chain is TDK's C0603C0G1H180J;

I checked in TDK's website, found below specs of this capacitor:

We can see that the self-resonant frequency of this capacitor is about 2.2Ghz;

So I think the resonable working frequency range of this capacitor is less than 2.2Ghz;

 

My question is why choose such capacitor for ad-fmcomms3 board?

 

Thanks!

Cap.png

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