HI All,
The video from my last post by Steve Weir does a good job of describing
the test in question.
Lee, can you point out any problems with the test method for us based
on the video?
For convenience, here is the video (Steve's description begins at 3:38
in the video.
Doug
On Wed, 09 Mar 2016 10:53:01 -0800, Doug Smith <doug@xxxxxxxxxx> wrote:
Hi Tom and the group,
------------------------------------------------------------------
I saw Steve Weir's demo at an IEEE EMC Symposium, and it was
impressive. Here is a video of it startimg at 3:38:
https://youtu.be/4GjPaMAS7VA
Doug
University of Oxford
Department for Continuing Education
Oxford, Oxfordshire, United Kingdom
--------------------------------------------------
Doug Smith
P.O. Box 60941
Boulder City, NV 89006-0941
TEL/FAX: 702-570-6108/570-6013
Mobile: 408-858-4528
Email: doug@xxxxxxxxxx
Web: http://www.dsmith.org
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On Wed, 09 Mar 2016 10:17:12 -0800, Tom Dagostino
<tom@xxxxxxxxxxxxxxxxx> wrote:
Lee then I question your results. The testing I worked on with Steve
Weir showed significant improvement vs the 0402 caps he was comparing
against. Two identical circuits on the same board only differing in
the caps used in the PDS. Fewer caps were used and lower noise. > So
what is your proof? What were the errors? The only test I've seen >
published by you had a very non-optimal layout for the X2Y caps. >
Tom Dagostino<leeritchey@xxxxxxxxxxxxx> wrote:
Tom Dagostino
Teraspeed LabsOn Mar 9, 2016 8:27 AM, Lee Ritchey >
0402 two terminal capacitors. >X2Y capacitors. Our tests show that they perform no better than >
You should be aware that there are errors in the testing don for
[mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of David Anthony ;> >Lee >
-----Original Message----- > From: si-list-bounce@xxxxxxxxxxxxx >
Sent: Monday, March 7, 2016 9:53 PM > To: sg-listas@xxxxxxxxxxxx; >
si-list@xxxxxxxxxxxxx > Subject: [SI-LIST] Re: X2Y equivalent circuit
model >//www.freelists.org/post/si-list/SPAM-Re-6-layers-stackup,7 ;>
Sebastian, here is a link to the si-list thread where Steve Weirchallenges the test vehicle: >
[SI-LIST] Re: [!! SPAM] Re: 6 layers stackup, Date: Tue, 26 Feb2008 12:21:29 -0800 > >
http://www.ipblox.com/papers.html ;>This 2008 presentation visually compared the 0402 / X2Y mountingused: > www.x2y.com/publications/decoupling/csrbt.pdf >
Many of Steve's technical papers can be found here: > >
[mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of Sebastian Garcia ;>Dave Anthony > X2Y >
-----Original Message----- > From: si-list-bounce@xxxxxxxxxxxxx >
Sent: Monday, March 07, 2016 10:56 PM > To: si-list@xxxxxxxxxxxxx >discussion, > around ten years ago, regarding 0402 vs. X2Y capacitors
Subject: [SI-LIST] Re: X2Y equivalent circuit model >
Ivor, search on this list for an interesting (and hot)
tests and the > validity of the published work (specifically,
regarding the test > vehicles). >
on > Lee Ritchey's website speedingedge.com , but don't know whereYou can find a work mentioned in that thread (John Zazio, 2003)
are > currently hosted the works of Steve Weir. > BTW, Could someone
post a > link to these files, please? >
between 0402 and X2Y caps? > > > > On 3/7/2016 7:46 AM, Grasso, >+54 911 3865 1770 >
Sebastian Garcia > Slabs Electronics > Buenos Aires - Argentina >
demonstrating / documenting > > performance differences (if any) >
Ivor Bowden wrote: > > Any presentations, papers, etc. available
Charles wrote: > >> Hello Lee - What method is used for a capacitor
to be properly mounted? > >> So, if an X2Y capacitor is properly >mounted the <insert metric here> > >> will not improve? > >> > >> >
Best Regards > >> Charles Grasso > >> Compliance Engineer > >> >
Echostar Communications > >> (w) 303-706-5467 > >> (c) 303-204-2974 >
[mailto:si-list-bounce@xxxxxxxxxxxxx] ;> >> On Behalf Of Lee Ritchey >(t) 3032042974@xxxxxxxxx > >> (e) charles.grasso@xxxxxxxxxxxx >
(e2) chasgrasso@xxxxxxxxx > >> > >> -----Original Message----- >
From: si-list-bounce@xxxxxxxxxxxxx > >> >
cristian.gozzi@xxxxxxxxx; 'Ray Anderson'; si-list@xxxxxxxxxxxxx > >>Sent: Saturday, March 05, 2016 5:44 AM > >> To: >
Cc: 'Ray Anderson' > >> Subject: [SI-LIST] Re: X2Y equivalentcircuit > model > >> > >> Our tests show that the X2Y capacitor is no
better > than a properly > >> mounted > >> 0402 capacitor. > >> > >>
-----Original Message----- > >> From: si-list-bounce@xxxxxxxxxxxxxCristian > Gozzi > >> Sent: Friday, March 4, 2016 10:57 AM > >> To:
[mailto:si-list-bounce@xxxxxxxxxxxxx] ;> >> On Behalf Of
Ray Anderson > <ray.anderson@xxxxxxxxxx>; si-list@xxxxxxxxxxxxx > >>
Cc: Ray > Anderson <raya@xxxxxxxxxx> > >> Subject: [SI-LIST] Re: X2Y
equivalent > circuit model > >> > >> Thanks > >> it worked ;-) > >> >
ore 10:04 Ray > Anderson < > >> ray.anderson@xxxxxxxxxx> ha scritto:Regards > > >> Cristian > >> > >> Il giorno gio 3 mar 2016 alle
downloadable spice > models available from > >>> this web > >>> page:Cristian- > >>> > >>> Johanson Dielectrics has
http://www.johansondielectrics.com/x2y-filter-decoupling-capacitors ;>
http://www.johansondielectrics.com/downloads/JDI_X2Y_H-Spice_Files.z ;download link: > >>> >
ADS > 'Hspice Compatibility > >>> Component' Wizard. (in fact I justip > >>> > >>> > >>> They should be usable in ADS using the
confirmed that they import OK). > >>> > >>> > >>> -Ray Anderson >[mailto:si-list-bounce@xxxxxxxxxxxxx] ;> >>> On Behalf Of Cristian >
From: si-list-bounce@xxxxxxxxxxxxx > >>> >Xilinx Inc. > >>> > >>> > >>> -----Original Message-----
Gozzi > >>> Sent: Thursday, March 03, 2016 9:07 AM > >>> To: >
si-list@xxxxxxxxxxxxx > >>> Subject: [SI-LIST] X2Y equivalent circuit
model > >>> > >>> Hi Si expert > >>> I was looking for a goodcircuit > model for X2Y capacitor to be used > >>> in my ADS circuit
simulation > > >>> > >>> on internet I found this > >>> > >>> >
http://www.x2y.com/bypass/X2Y%20Equivalent%20Circuit%20for%20Models. ;
something was wrong The > >>> impedance vs freq. shapes on log/log >pd > >>> f > >>> > >>> but when I tried to implemented it, >
scale does not seem correct > >>> > >>> can someone give to me any >
feedback or good reference to look for? > >>> > >>> thanks in advance
------------------------------------------------------------------ >Regards > >>> Cristian > >>> > >>> > >>> >
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