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What is attenuation of a signal through an ideal channel (FR4) in a chip-to-chip link

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bit_an

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Hi All,

Can anyone give me a ballpark idea of what is attenuation of a signal through an ideal channel (FR4) in a chip-to-chip serial link?! I am working with a 2.5 GHz frequency. In literture, I found for an ideal channel, it could be around 6 dB or more (but for 10 GHz frequency). I am curious to know if its reliable or other good sources are there to seek more information on this topic. Kindly share your knowledge.

Thanks
 

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