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Hi,

I'm targeting a Virtex 6 device, part number . I plan to AC couple the MGT transmit signals.

The concern I have is that I plan to operate the MGTs at 6.25G and the current capacitor I plan to use has a ESR of 20 ohms at 6.25G.

I plan to use a Kemet capacitor and I used their simulator to find the ESR.

Should I be concerned with such a high ESR cap on the MGT transmit signals?

Please help.

Thanks!

I didn't find the right solution from the Internet.

References: https://forums.xilinx.com/t5/Virtex-Family-FPGAs/Virtex-6-MGT-AC-coupling-questions/td-p/295583

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