RE: [IBIS-Users] 2 different working voltage range

Are you changing the termination voltage along with the operating voltage?

Tom Dagostino
Teraspeed(R) Labs
13610 SW Harness Lane
Beaverton, OR 97008
503-430-1065
tom@teraspeed.com
www.teraspeed.com

Teraspeed Consulting Group LLC
121 North River Drive
Narragansett, RI 02882
401-284-1827

  -----Original Message-----
  From: owner-ibis-users@eda.org [mailto:owner-ibis-users@eda.org]On Behalf
Of lau yy
  Sent: Sunday, October 09, 2005 3:10 AM
  To: ibis-users@eda.org
  Subject: [IBIS-Users] 2 different working voltage range


  Dear ALL,


  Recently, I trying to built a model for 2 different working voltage range.

  According to the data sheet, the product can work under 2 different
voltage range, let say 2.60V and 3.30V.

  But, when I modeling this product, I found that only 1 of them pass the
IBIS checker (for 3.30V) . The other 1 (2.60V) fail with errors on
Falling/Rising Waveform. The schematic and control file I use is the same. I
just use 2different references voltages.

  Can I conclude that the product just can work under the voltage range that
pass the IBIS checker ?

  Thanks

  rdgs
  yylau
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