As mentioned before, I want to supply two PCBs with same-frequency clock(as high as 10GHz).But now there is only one pair of differential clock, while both of the PCBs need one.

So I am thinking of using an extra PCB, whose task is to distribute one clock into two. However, this involves a bifurcation for the high-frequency clock, inevitably causing impedance discontinuity.Is there any better way to deal with this?

  • \$\begingroup\$ You could buffer the clock, or use an RF splitter maybe. \$\endgroup\$ – mkeith May 14 '17 at 7:09
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    \$\begingroup\$ I think using a clock distribution IC might work. I don't know that much about differential signals, but perhaps going to single ended, using something like a Wilkinson splitter and then going back to differential could work. \$\endgroup\$ – Joren Vaes May 14 '17 at 7:12
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    \$\begingroup\$ Yeah. I found a few clock buffer IC's on digikey that can handle up to 10 GHz differential clocks. That is the best bet. \$\endgroup\$ – mkeith May 14 '17 at 7:21
  • \$\begingroup\$ @mkeith can you give me the link? thanks! \$\endgroup\$ – Xiao Xiang May 14 '17 at 7:35
  • \$\begingroup\$ @mkeith I haven't found ones that can handle such high frequency. \$\endgroup\$ – Xiao Xiang May 14 '17 at 7:40

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