DS125DF111: CDR bypass in 10G retimers

Mad Sky

Part Number: DS125DF111

Hello,

in a related answer, it was mentioned that 10G retimers have CDR bypass mode, for use with non-standard bit rates. I checked datasheets for several 10G retimers, but could not find CDR bypass mode in them. Could you let me know how to bypass CDR, let's say in DS125DF111 part? Does putting CDR in reset permanently accomplish that?

thanks.

Alex.

over 5 years ago

0 Nasser Mohammadi over 5 years ago

TI__Guru* 93670 points

Greetings,

CDR bypass actually is the same as RAW mode. In DS125DF111 this is called RAW mode since this is the data after CTLE and DFE(before CDR block). Please note DS125DF111 RAW mode description and settings.

Regards,, Nasser

0 Mad Sky over 5 years ago in reply to Nasser Mohammadi

Prodigy 115 points

Excellent, thanks!

Alex.

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DS125DF111: CDR bypass in 10G retimers