What is 50G Ethernet?

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50G Ethernet was approved in December 2018. The key difference which separates 50G Ethernet from 25G Ethernet is the use of PAM-4 modulation. RS-FEC encoding is used to correct sing bit and burst errors. IEEE 802.3cd is the standard which defines 50G Ethernet. Different sections of a typical 50G Ethernet application are defined by different IEEE 802.3cd specifications.
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Комментарии
Автор

What does this mean for PCB routing/manufacturing techniques? Will 50G be possible on FR4 still?

marinzsh
Автор

there is too many crossing point in pam-4 eyediagram, or i dont know what you mean by gray coding. As i understand this, for 4 state bus that uses gray code, from each level there is possible only two ways, but on your video i see each level can lead to any other...

niemusze