[ibis-macro] Re: Follow-up on PDF discussion...
- From: <fangyi_rao@xxxxxxxxxxx>
- To: <richard.mellitz@xxxxxxxxx>, <michael.mirmak@xxxxxxxxx>, <ibis-macro@xxxxxxxxxxxxx>
- Date: Thu, 12 Nov 2009 10:59:36 -0700
Hi, Rich;
Thanks for your reply. Can you provide more clarification on what the PDF of
data edge represents?
1. It seems to be a function of both time and voltage. Correct?
2. Does it include effects of Tx jitter?
3. Does it include effects of ISI?
4. Does the jitter PDF in your email represent Tx jitter or Rx sampling jitter?
5. Do you need separate PDFs for logic 1 and logic 0?
Thanks,
Fangyi
-----Original Message-----
From: Mellitz, Richard [mailto:richard.mellitz@xxxxxxxxx]
Sent: Thursday, November 12, 2009 6:20 AM
To: RAO,FANGYI (A-USA,ex1); Mirmak, Michael; ibis-macro@xxxxxxxxxxxxx
Subject: RE: [ibis-macro] Re: Follow-up on PDF discussion...
Hi Fangyi,
The PDF we are talking about is the PDF of data edges. That PDF convolves in
with a jitter PDF in time and voltage PDF in for receive sensitivity. Notice
there is no data stream here at all. We get an exact BER CDF in this manner.
I.e. no extrapolation.
... Rich
-----Original Message-----
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of fangyi_rao@xxxxxxxxxxx
Sent: Tuesday, November 10, 2009 2:48 PM
To: Mirmak, Michael; ibis-macro@xxxxxxxxxxxxx
Subject: [ibis-macro] Re: Follow-up on PDF discussion...
Hi, Michael;
Isn't Tx_Jitter in AMI the same as Tx jitter PDF? I think that's all needed in
Casper's approach.
Thanks,
Fangyi
-----Original Message-----
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of Mirmak, Michael
Sent: Tuesday, November 10, 2009 11:12 AM
To: IBIS-ATM
Subject: [ibis-macro] Follow-up on PDF discussion...
FYI, in an earlier mail, I asked whether PDFs could be used directly under
IBIS-AMI. To clarify, the usage of PDF was as "probability distribution
function."
The reason for the question, plus some concerns about TX jitter treatment, are
outlined in a paper by Bryan Casper, Ganesh Balamurugan et al, entitled "Future
Microprocessor Interfaces: Analysis, Design and Optimization." It's available
through IEEE and other sources. The full citation follows.
IBIS-AMI support for this style of data input would be highly useful.
- MM
Casper, B.; Balamurugan, G.; Jaussi, J.E.; Kennedy, J.; Mansuri, M., "Future
Microprocessor Interfaces: Analysis, Design and Optimization," Custom
Integrated Circuits Conference, 2007. CICC '07. IEEE , vol., no., pp.479-486,
16-19 Sept. 2007
URL:
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=4405777&isnumber=4405667
ISBN: 978-1-4244-1623-3
Additional material in a similar vein is available here:
Balamurugan, G.; Casper, B.; Jaussi, J.E.; Mansuri, M.; O'Mahony, F.; Kennedy,
J., "Modeling and Analysis of High-Speed I/O Links," Advanced Packaging, IEEE
Transactions on , vol.32, no.2, pp.237-247, May 2009
URL:
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=4811945&isnumber=4982886
---------------------------------------------------------------------
IBIS Macro website : http://www.eda.org/pub/ibis/macromodel_wip/
IBIS Macro reflector: //www.freelists.org/list/ibis-macro
To unsubscribe send an email:
To: ibis-macro-request@xxxxxxxxxxxxx
Subject: unsubscribe
---------------------------------------------------------------------
IBIS Macro website : http://www.eda.org/pub/ibis/macromodel_wip/
IBIS Macro reflector: //www.freelists.org/list/ibis-macro
To unsubscribe send an email:
To: ibis-macro-request@xxxxxxxxxxxxx
Subject: unsubscribe
---------------------------------------------------------------------
IBIS Macro website : http://www.eda.org/pub/ibis/macromodel_wip/
IBIS Macro reflector: //www.freelists.org/list/ibis-macro
To unsubscribe send an email:
To: ibis-macro-request@xxxxxxxxxxxxx
Subject: unsubscribe
Other related posts:
