Crosstalk between capacitors in MLCC array

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mtwieg

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Part of a project involves laying out a 4:1 ethernet switch, and I'm going to need DC blocking capacitors for the signal lines. I was thinking that using arrays of four caps instead of discrete caps (maybe 10-100nF each) would help layout a lot, but I'm also worried about the capacitance between elements in the array ruining my signal integrity. Does anyone know what order of capacitance I can expect between capacitors, and to what extent it will depend on the capacitance of each element? For some reason, manufacturers don't show this info, at least I haven't found it yet.

Thanks!
 

So far I've only been able to find actual crosstalk data for the CKC series, and it's pretty poor (I was hoping for -40dB at 250MHz).
 

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