[SI-LIST] Re: SSN
- From: elie issa <eliaissa1@xxxxxxxxx>
- To: steve weir <weirsi@xxxxxxxxxx>, "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Fri, 21 Oct 2011 19:18:49 -0700 (PDT)
Could you also elaborate on how ground bounce impacts
crosstalk?
Thank you
Elie
From: steve weir <weirsi@xxxxxxxxxx>
To: si-list@xxxxxxxxxxxxx
Sent: Friday, October 21, 2011 3:39:38 PM
Subject: [SI-LIST] Re: SSN
SSN will ultimate limit, but only after it has done great damage to
signal integrity. You can demonstrate the idea by getting out an octal
or wider driver and wiring all the inputs to the same pulse source, and
all the outputs to 50 Ohm loads. Measure the waveforms with tight
bypass right at the package, and then inserting your soon to be not so
favorite ferrite bead between the bypass and the package Vdd pin. If
you don't have a favorite bead, one that is called out in many app notes
is a TDK MPZ1608S221A.
Then you can repeat the experiment by driving one of the inputs with an
out of phase signal.
Steve.
On 10/21/2011 9:12 AM, elie issa wrote:
> It looks like my second line got clipped:
> We know that SSN saturates after switching a certain number of outputs, based
> on the relation N*L*di/dt, and
> starts a reverse process,..
>
> From: elie issa<eliaissa1@xxxxxxxxx>
> To: "si-list@xxxxxxxxxxxxx"<si-list@xxxxxxxxxxxxx>
> Sent: Friday, October 21, 2011 11:50:37 AM
> Subject: SSN
>
>
> I'd like tp propose this topic:
> we know that SSN staurates after switching a certain number of outputs, and
> start
> could someone elaborate on the reasoning behind the saturation, and are there
> designed applications taking advantage of this aspect of it out there
> Also, system crosstalk worsen because of package parameters, so beside
> crosstalk at package level, ssn
> also contribute to crosstalk, could some explain what happens there?
>
> Thank you
> Elie
> ------------------------------------------------------------------
> To unsubscribe from si-list:
> si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
>
> or to administer your membership from a web page, go to:
> //www.freelists.org/webpage/si-list
>
> For help:
> si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
>
>
> List technical documents are available at:
> http://www.si-list.net
>
> List archives are viewable at:
> //www.freelists.org/archives/si-list
>
> Old (prior to June 6, 2001) list archives are viewable at:
> http://www.qsl.net/wb6tpu
>
>
>
--
Steve Weir
IPBLOX, LLC
150 N. Center St. #211
Reno, NV 89501
www.ipblox.com
(775) 299-4236 Business
(866) 675-4630 Toll-free
(707) 780-1951 Fax
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List technical documents are available at:
http://www.si-list.net
List archives are viewable at:
//www.freelists.org/archives/si-list
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
------------------------------------------------------------------
To unsubscribe from si-list:
si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field
or to administer your membership from a web page, go to:
//www.freelists.org/webpage/si-list
For help:
si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field
List technical documents are available at:
http://www.si-list.net
List archives are viewable at:
//www.freelists.org/archives/si-list
Old (prior to June 6, 2001) list archives are viewable at:
http://www.qsl.net/wb6tpu
Other related posts:
