[SI-LIST] Re: SpecctraQuest Vs. Hyperlinks
- From: "Hargin, Bill" <bill_hargin@xxxxxxxxxxx>
- To: "'jon_philip_swift@xxxxxxxxxxx'" <jon_philip_swift@xxxxxxxxxxx>,gil.gafni@xxxxxxxx, Si-List <si-list@xxxxxxxxxxxxx>
- Date: Thu, 6 May 2004 10:57:59 -0700
Hi Gil, Jonathan, et al:
HyperLynx vs. SPECCTRAQuest:
-------------------------------------
On the subject of comparing HyperLynx and SPECCTRAQuest, I think that Ravinder
Ajmani did a reasonable, fair comparison in his 14 April e-mail
(http://groups.yahoo.com/group/si-list/message/11857).
Simulator Limitations (1-10GHz, etc.):
-------------------------------------
The limitations that Jonathan noted were correct until about this time last
year, when HyperLynx released "HyperLynx GHz," which incorporated modeling of
dielectric loss and skin effects, advanced via modeling (e.g., well-beyond
simple lumped capacatitor and/or lumped inductor) models that are often used in
simulators), and compatibility with HSPICE. The demo/tutorial is at
www.mentor.com/hyperlynx, for those who are interested. A Xilinx RocketIO
design kit is referenced from the same page.
This week, we're starting beta testing for HL7.2, which includes Eldo
compatibility (Mentor's SPICE tool, as Jonathan noted; excellent S-parameter
support, BTW), and a new Xilinx RocketIO design kit with Eldo. I'm still
looking for a few more beta testers. If you'd be interested in participating,
please e-mail me offline.
"Which tool is the best?"
-------------------------------------
Though I stayed silent (and busy!) during the dialogue last month, I agree with
the logic concluding that "it depends on what you want to do."
I found Jon Powell's 14 April e-mail to provide a pretty good list
(http://groups.yahoo.com/group/si-list/message/11848), though I would modify
his list a bit, as below.
1) Price
2) Simulation Speed
3) Accuracy (under what conditions?)
4) User interface / ease of set-up and use
5) Compatibility (with what you have)
6) Integration
7) Layout tool independence
8) dN/dt for all of the above, determining where a tool's going to be in 1-2
years" (a pretty big differentiator among simulation tools, I've found)
As Jon said, "for any set of the prioritization of the requirements above I
would probably
recommend a different tool."
Any panaceac, one-tool conclusion is being a bit naive. The analogy I use is
my collection of saws: a hand saw, a chop saw, a "sawsall," a jig saw, a tree
saw, and a hack saw (no chain saw; I borrow my neigbors!). They all do
different things for different jobs. As engineers, we need to use EDA tools in
the same way ... depending on the job.
Bill Hargin
Product Manager - HyperLynx
Mentor Graphics Corp.
425-497-5079 - Direct
425-301-4425 - Mobile
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx
> [mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Jonathan Swift
> Sent: Thursday, May 06, 2004 8:29 AM
> To: gil.gafni@xxxxxxxx; Si-List
> Cc: gil.gafni@xxxxxxxx
> Subject: [SI-LIST] Re: SpecctraQuest Vs. Hyperlinks
>
> Hi Gil,
>
> It really depends on what you what to simulate. I've
> found that both tools are very good at what they do.
> Hyperlynx is a IBIS simultor and is a fine tool for
> simulating sub 1G devices and models however it starts
> to fall over at the higher speeds and more complex
> systems.
>
> SpectraQuest is a very robust tool but to get the most
> out of it you need a HSPICE license, pushing the price
> of the tool up. However I've used it for simulations
> up to 10Gbps.
>
> Another tool to consider is ICX from Mentor Graphics.
> This uses the ELDO simulator (Mentors own SPICE
> simulator). It others comparable features to
> SpectraQuest but you don't have to get an addtional
> SPICE simulator.
>
> For all the tools most IC vendors offer good support
> in both models and deisgn kits.
>
> Cheers,
>
> Jonathan
> -----Original Message-----
> Dear
> Experts
> >
> > I am trying to evaluate the two tools. It looks like
> > they both offer the
> > same.
> > I would appreciate to hear what the experts think
> > about the two
> >
> > Regards
> >
> > Gil
> >
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