[PCB_FORUM] Re: Can I feed Ideal Square wave in Spectraquest?
- From: rjbzxr@xxxxxxxxxxxx
- To: icu-pcb-forum@xxxxxxxxxxxxx
- Date: Tue, 05 Apr 2005 04:15:56 -0400
Hi Naren,
The 2 waveforms are for the internal and external pins of your package..
i.e.
File_name_JP_2 = Waveform result including pin parasitics
File_name_JP_2i = Waveform result excluding pin parasitics or you could say
"The internal signal is on the die side of the package parasitics (internal to
the chip)"
** If all of the package parasitics are set to zero, then a single
waveform will be displayed.
Regarding the Square wave.. you can apply a PULSE to the driver or a custom
stimulas like 0 1 0 1 0 1 .. so it repeats to create the square wave ? Just
click on the Drivers Name "TRISTATE" and then change the stimulas.
"Naren" <naren@xxxxxxxxxx> wrote:
>Hi SI Gurus !
>
>I am using spectraquest 15.2 for signal integrity.
>
>I have some questions as under !!
>1) In Sig Wave two waveforms are showing for same pin like
> File_name_JP_2 & other is File_name_JP_2i
> What does it mean by both?
>2) Can we feed Ideal square wave at driver end ?
> I want to see the signal distortion due to pin parasitic, trace
>geometry, via characteristics & so on..
>
>Please reply me for this Please !!
>
>Thanks in advance !!
>--
>"Keep looking foreward"
>
>Regards
>Naren Thesia
>Member CAD
>D'GIPRO SYSTEMS PVT. LTD. BANGALORE
>TEL: 080-25219017/18 (O)
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