[SI-LIST] Re: SI tools
- From: "Ken Willis" <kwillis@xxxxxxxxxxx>
- To: <Aubrey_Sparkman@xxxxxxxx>, <dav0x@xxxxxxxxx>,<si-list@xxxxxxxxxxxxx>
- Date: Fri, 7 Nov 2003 12:46:12 -0800
Yes, there are 2 tiers of SigXplorer (our topology environment).
The lower tier goes into the "SPECCTRAQuest Signal Explorer"
product, and the upper tier (superset of functionality) is part
of the "SPECCTRAQuest SI Expert" product.
Ken
-----Original Message-----
From: Aubrey_Sparkman@xxxxxxxx [mailto:Aubrey_Sparkman@xxxxxxxx]=20
Sent: Friday, November 07, 2003 1:36 PM
To: dav0x@xxxxxxxxx; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: SI tools
Ken,
Aren't there two versions of SigXplorer?
Aubrey Sparkman=20
Enterprise Engineering Signal Integrity Team=20
Dell, Inc.=20
Aubrey_Sparkman@xxxxxxxx=20
(512) 723-3592
> -----Original Message-----
> From: Dav0 Lieby [mailto:dav0x@xxxxxxxxx]
> Sent: Friday, November 07, 2003 11:09 AM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: SI tools
>=20
>=20
> This may be true, a lot of support people
> send emails indicating it can be done. If
> one is to look through the documentation that
> comes with the product to see how it is done,
> as one who gets a temp or eval license would,
> there in nothing much to help. Quite a lot of
> time can be spent trying to figure out how to
> get things to hook up and run.
>=20
> SigXplorer is powerful, I use it for a lot
> of analysis. I also have a very hard time
> with the documentation and the lack of good
> examples.
>=20
> David Lieby
> SI Engineering
> Siemens Medical Systems
> Ultrasound Division
> Mountain View Campus
> --- Ken Willis <kwillis@xxxxxxxxxxx> wrote:
> > Hi Chris,
> >=20
> > Some explanation on SigXplorer. You can use it
> > completely
> > standalone from Allegro if you want. It is pretty
> > easy to
> > build up a complex topology, and even use "black
> > boxes"
> > where you can paste in big SPICE subcircuits. It is
> > not
> > limited to a stack-up, because lots of folks build
> > multi-
> > board topologies (including multi-layer packages),
> > so
> > there may be MANY stack-ups involved. And some of
> > them
> > may not be defined yet, with "what-if" sweeps being
> > run
> > (ex. diectric thickness, line width, spacing, etc)
> > to figure
> > what the stackup should be.
> >=20
> > So it lets you just pick a microstrip, stripline
> > etc. with
> > some number of conductors, and you can plop it in
> > the canvas
> > and set up the conductor parameters however you
> > want. Or if
> > you have an Allegro brd set up, you can just extract
> > it into
> > SigXp and do analyses on that.
> >=20
> > In a nutshell, it is set up like this to support
> > either pre-
> > layout exploration or post-route verification.
> >=20
> > Ken
> >=20
> > -----Original Message-----
> > From: Chris Landrum x311
> > [mailto:clandrum@xxxxxxxxx]=3D20
> > Sent: Thursday, November 06, 2003 1:34 PM
> > To: 'si-list@xxxxxxxxxxxxx'
> > Subject: [SI-LIST] SI tools
> >=20
> >=20
> > This may be a topic dicussed at nauseam on this list but....
> >=20
> > I am attempting to evaluate SI tools. I have a temp license for=20
> > Cadence SigExplorer as well as an eval license for Mentor
> > Hyperlynx. I am
> > finding enormous pitfalls in both tools (for what I
> > intend to use them
> > for).
> >=20
> > SigExplorer
> > In this tool you can't specify stackups without
> > going through Allegro.
> > It would be extremely useful to be able to do
> > "what-if's" on the
> > stack-up. Hyperlynx does seem to allow this. This
> > tool (ver 15)
> > requires that you be very conscious in how your
> > parts are set-up. ALL
> > pins must be specified in Allegro prior to
> > extracting a net. This is
> > just a little annoying for things like resistor
> > packs and such.
> >=20
> > Hyperlynx
> > Allows use of the field solver directly which is
> > good. A major problem
> > I see is that when specifying a "what-if" scenario,
> > it seems you can
> > ONLY specify parallel, thev, or series terms...what
> > about terms that
> > include AC coupling and the such?
> >=20
> > So here is my question. What tools do you people
> > use to simulate board
> > stack-ups, crosstalk, transmission line
> > characteristics, lossy signals,
> > etc.?
> >=20
> > I am almost thinking the best route to go is to get
> > a 2-D field solver
> > and a spice simulator, but I would like to be better integrated with
> > my layout tool.
> >=20
> >=20
> >
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