[SI-LIST] Re: Need your Opinion and expertise
- From: "Xilei Liu" <xileil@xxxxxxxxxxx>
- To: ariazi@xxxxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Wed, 19 Jul 2006 08:16:03 +0000
HSPICE and MDSPICE can incorporate S-parameters. A basic way is to use Pade'
approximation to extract RLC and incorporate them into most available
circuit simulators.
Celine
>From: "Abe (Abbas) Riazi" <ariazi@xxxxxxxxxxxx>
>Reply-To: ariazi@xxxxxxxxxxxx
>To: si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] Re: Need your Opinion and expertise
>Date: Tue, 18 Jul 2006 12:13:02 -0700
>
>=20
>Dear Amir Nader-Tehrani,
>
>If you are interested in a connector model for SPICE simulations,
>it may be simpler to develop a lumped RLC or a distributed model
>of the connector (as opposed to starting with a S-parameter model).
>
>RLC modeling of connectors (as well as other interconnect elements
>such as PCB traces, IC packages, sockets, cables, etc.) is of
>fundamental
>importance. Furthermore, RLC models can be readily applied in any SPICE
>Program or other simulators.
>
>Lumped RLC as well as distributed modeling of interconnects have
>frequency/ege rate
>limitations and at GHz frequencies the use of S-parameter models can be
>advantageous.
>However, S-parameter models need to be evaluated for causality and
>passivity and they
>are not acceptable by many simulators including some versions of SPICE.
>=20
>
>Best Regards,
>
>Abe Riazi
>ServerWorks
>
>
>
>-----Original Message-----
>From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
>On Behalf Of Nader-Tehrani, Amir - ES/RDR -Gil
>Sent: Tuesday, July 18, 2006 9:58 AM
>To: si-list@xxxxxxxxxxxxx
>Subject: [SI-LIST] Need your Opinion and expertise
>
>Hello Everyone,
>=20
>
>I am a recent graduate trying to get some insight into signal integrity.
>My first task is to model a connector using SPICE. It seems like the
>easiest approach considering what I have available is to first find the
>S-Parameters for the connector using a Network Analyzer and then use the
>S-Parameters to go from the parameters to a SPICE model using a software
>tool. I would appreciate it if you could give me some insight on the
>following.
>
>=20
>
>1- Is this a valid and reliable approach and if you can propose
>better approaches to me.
>
>2- If this is a valid approach, are there any special facts I need
>to keep in mind to avoid problems or to smoothen the process
>
>3- Can you suggest any software (preferably evaluation software)
>that I can use to go from S- Parameters to SPICE model
>
>4- What tool should I use to simulate the SPICE model for high
>speed signal integrity tests (what software) and what should I try to
>achieve from this simulation and what kind of data should I gather
>
>=20
>
>I would highly appreciate your sharing of expertise and ideas.
>
>=20
>
>Sincerely
>
>=20
>
>Amir Nader-Tehrani
>
>=20
>
>=20
>
>=20
>
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