[SI-LIST] Re: time domain simulation w/ PDN planes
- From: Charles Hymowitz <charles@xxxxxxxx>
- To: "ferhatyaldiz@xxxxxxxxx" <ferhatyaldiz@xxxxxxxxx>, "sherman.chen@xxxxxxx" <sherman.chen@xxxxxxx>, "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 21 Oct 2014 13:36:02 -0500
Sherman
I am not sure if this helps or muddies the waters. But we have posted a
presentation, SSO Noise Effects in RTAX FPGAs, on
http://www.aeng.com/power_integrity.htm that discusses how we have
characterized the RTAX2000 SSO Noise/PDN performance and been able to model it.
Charles Hymowitz - Managing Director
AEi Systems
Charles@xxxxxxxx
(310) 216-1144
(310) 863-8034 (M)
http://www.aeng.com - Analytical Heavy Lifting
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Ferhat Yaldiz
Sent: Tuesday, October 21, 2014 11:31 AM
To: sherman.chen@xxxxxxx; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: time domain simulation w/ PDN planes
Hi Sherman,
You can use Speed2000 for your purpose. With adding simple spice definition for
noise source and PRBS and/or real IBIS drivers you can achieve time-domain
simulation.
And you can call your PRBS text file into your circuit definition. For PI
effect you can include all capacitor parasitics into their models.
Best Regards,
Ferhat Yaldiz
On Tue, Oct 21, 2014 at 5:07 PM, Chen, Sherman <sherman.chen@xxxxxxx> wrote:
> Hello experts,
> I'm trying to evaluate the impact of power plane noise on the HS signals.
> The sim setup would require to apply a noise source on the PDN
> (somewhere btw power plane and ground plane), also a PRBS source at
> the initial end of the t-line. To my knowledge it looks only Cadence
> Sigrity Speed2000 can run such SI/PI combined sim since the feedback I
> got from Keysight and ANSYS both said that neither ADS nor SIWave can
> handle such sim case where time domain sim needs to be run w/ the noise
> coupled from power/ground plane.
> Note the coupling needs to be from the whole plane rather than
> injected at one point for the latter we can simply use a sparam model
> of the PDN as the means of noise injection but this would not be the
> equivalent of the plane coupling, right?
> Any suggestion will be appreciated.
>
> Best Regards,
>
> Sherman Chen
> Signal Integrity
> EMC Global Hardware Engineering
> Tel: +86 21 60951100-3329
>
>
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