[ibis-macro] Re: Anyone opened the eye, at 28 Gbps, for any of the 802.3bj working group's channels?

  • From: Walter Katz <wkatz@xxxxxxxxxx>
  • To: <capn.freako@xxxxxxxxx>, "SI-List" <si-list@xxxxxxxxxxxxx>, <ibis-macro@xxxxxxxxxxxxx>
  • Date: Sun, 1 Mar 2015 11:20:54 -0500 (EST)

David,

 

You need a reasonable CTLE and a 14 tap DFE (or equivalent) with NRZ
modulation.

 

Walter

 

From: ibis-macro-bounce@xxxxxxxxxxxxx
[mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of David Banas
Sent: Sunday, March 01, 2015 10:57 AM
To: SI-List; ibis-macro@xxxxxxxxxxxxx
Subject: [ibis-macro] Anyone opened the eye, at 28 Gbps, for any of the
802.3bj working group's channels?

 

Hi all,

 

I'm attempting to, in simulation, open a 28 Gbps eye, using various
candidate channels from the 802.3bj working group's "Channel Data" page,
located here:

 

http://www.ieee802.org/3/100GCU/public/channel.html

 

And I am failing miserably.

I'm wondering if anyone else has tried this and had any luck.

Specifically, I'm curious as to:

1.      Whether you were able to open a 28 Gbps eye, using any of these
channels?
2.      If so, what modulation scheme were you using?
3.      Approximately, how much Tx and Rx equalization was necessary, in
order to do so?
4.      Is there a particular one of these channels, which the group is
tending to gravitate towards, in order to "standardize" modulation scheme
comparison results.

 

Thanks, in advance, for anything you're able/willing to say publicly on
this topic!

-db

 

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