[ibis-macro] Re: Jitter Model Discussion
- From: Gregory R Edlund <gedlund@xxxxxxxxxx>
- To: ibis-macro@xxxxxxxxxxxxx
- Date: Thu, 22 Sep 2011 11:54:09 -0500
Does anybody on the list think the jitter (A) should be injected at the
input of the TX output stage (OUT), as drawn? I'm trying to figure out if
I wrote this down wrong or if there is still some disagreement among the
committee members.
Greg
(See attached file: Serdes_Jitter_Model_092011.ppt)
Greg Edlund
Senior Engineer
Signal Integrity and System Timing
IBM Systems & Technology Group
3605 Hwy. 52 N Bldg 050-3
Rochester, MN 55901
From: "Walter Katz" <wkatz@xxxxxxxxxx>
To: Gregory R Edlund/Rochester/IBM@IBMUS,
<ibis-macro@xxxxxxxxxxxxx>
Date: 09/21/2011 06:11 PM
Subject: RE: [ibis-macro] Jitter Model Discussion
Greg,
I believe that (A) should be at the input to the EQ of the Tx Block since
it is applied to the stimulus input to the Tx algorithmic model.
Walter
From: ibis-macro-bounce@xxxxxxxxxxxxx [
mailto:ibis-macro-bounce@xxxxxxxxxxxxx] On Behalf Of Gregory R Edlund
Sent: Wednesday, September 21, 2011 6:39 PM
To: ibis-macro@xxxxxxxxxxxxx
Subject: [ibis-macro] Jitter Model Discussion
I modified the drawings as we were talking yesterday. Let me know if I
missed
something or misinterpreted someone's statement.
As I understood the conversation, some things are still under discussion:
1. Where does RX_Sj get injected (Kumar's point)?
2. Is a TX termination block really necessary?
I suggest we spend one more session listing the physical origin(s) for each
type of jitter on the first slide. It would be great to have a circuit
designer on hand for this!
In the future, I would be glad to function as the scribe by making updates
to the charts as the new spec evolves.
(See attached file: Serdes_Jitter_Model_092011.ppt)
Greg Edlund
Senior Engineer
Signal Integrity and System Timing
IBM Systems & Technology Group
3605 Hwy. 52 N Bldg 050-3
Rochester, MN 55901
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