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ADL5382 AC coupling capacitor

Question asked by J.Park on Oct 6, 2016
Latest reply on Oct 11, 2016 by J.Park

To use ADL5382 well, I'm now considering parts.

What I want to ask is about AC coupling capacitor for RF and LO input.

 

In the datasheet, 1000pF is recommended for the coupling capacitor.

However, series resonant frequency(SRF) is worse at bigger capacitance.

So, the SRF of 1000pF is around just a few MHz.

 

Is it okay to use 1000pF for 700MHz~2.7GHz signal?

 

And I guess the datasheet recommends 0402 size due to SRF or something, am I right?

 

Thanks ! 

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