[SI-LIST] Re: How to use s-parameter generated from specctra-quest in HSPICE

Hello, Farooq Bhatti

Please try this script in Hspice to extract S-parameter. It's more accurate
than Cadence. cc.s4p can be any channel. W-element or S-parameter. 

*Channel

.option acct post list

pi1 txop 0 dc=0 ac=0.5 Z0=50 port=1
pi2 txon 0 dc=0 ac=0.5 Z0=50 port=2
po1 rxip 0 dc=0 ac=0 Z0=50 port=3
po2 rxin 0 dc=0 ac=0 Z0=50 port=4

.opt post
.AC Lin 2001 0 20G
.lin sparcalc=1 format=touchstone


Scc txop txon rxip rxin 0 mname=cc

.MODEL cc S N=4 TSTONEFILE="cc.s4p"


.end


Best Regards,

Lurker Li

Tel: 86-21-58966996-1021


-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Istvan Novak
Sent: Thursday, June 19, 2008 9:16 AM
To: Farooq Bhatti
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: How to use s-parameter generated from specctra-quest
in HSPICE

When you plot the S parameters you plug into HSPICE, does it make sense, 
or the S parameter data already shows the large reflection?

Regards,
Istvan


Farooq Bhatti wrote:
> First thing that we checked.
> Then we had the Cadence support generate it for us to be sure.
>
> Sincerely,
> Farooq Bhatti
> Whizz Systems Inc.
> 408-980-0400 x 105
> 408-482-2315 (cell)
> NOTICE: This email message is for the sole use of the intended =
> recipient(s) and may contain confidential and
> privileged information. Any unauthorized review, use, disclosure or =
> distribution is prohibited. If you are not the
> intended recipient, please contact the sender by reply email and destroy =
> all copies of the original message.
>
> -----Original Message-----
> From: Istvan Novak [mailto:istvan.novak@xxxxxxxxxxx]=20
> Sent: Wednesday, June 18, 2008 5:43 PM
> To: Farooq Bhatti
> Cc: si-list@xxxxxxxxxxxxx
> Subject: Re: [SI-LIST] How to use s-parameter generated from =
> specctra-quest in HSPICE
>
> Farooq,
>
> First I would check the port assignment (port numbering) to make sure=20
> that the diff pair is hooked up the same way in the HSPICE simulation=20
> that was assumed in S-parameter extraction.
>
> Regards,
> Istvan
>
>
> Farooq Bhatti wrote:
>   
>> Hi All:
>>
>> I am facing issues with the s-parameter file generated from =
>>     
> spectra-quest for interconnects for one diff pair to
> be
>   
>> used for PCIe Gen2 simulation in HSPICE. I am getting the entire =
>>     
> signal reflected back from the point where
>   
>> s-parameter starts.=20
>>
>> I am using spectra-quest to extract the routed nets in sigxp then =
>>     
> generate the s-parameter from sigxp.
>   
>> Then using that s-parameter in HSPICE net list to do the simulation.
>> Has any one come across same or similar issues? OR know of the correct =
>>     
> procedure to do this?
>   
>> Thanks in advance.
>>
>> Sincerely,
>> Farooq Bhatti
>> Whizz Systems Inc.
>> 408-980-0400 x 105
>> 408-482-2315 (cell)
>> NOTICE: This email message is for the sole use of the intended =
>>     
> recipient(s) and may contain confidential and
>   
>> privileged information. Any unauthorized review, use, disclosure or =
>>     
> distribution is prohibited. If you are not the
>   
>> intended recipient, please contact the sender by reply email and =
>>     
> destroy all copies of the original message.
>   
>>  =20
>>     


------------------------------------------------------------------
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:
http://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:     
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
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:
http://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:     
                http://www.freelists.org/archives/si-list
or at our remote archives:
                http://groups.yahoo.com/group/si-list/messages
Old (prior to June 6, 2001) list archives are viewable at:
                http://www.qsl.net/wb6tpu

Other related posts: