Subject: RE: drlc model

From: "Beal, Weston" <[email-masked]>
Date: Thu, 28 Sep 2000 10:56:39 -0700

All,

Be aware that this model is not standard IBIS syntax.  It is the ICX
specific extension of IBIS to handle series resistors before IBIS defined
them.  ICX 2.4 (released any time now) will handle the true IBIS syntax for
series resistors.

Regards,
Weston

 + -----Original Message-----
 + From: Peled Sarit [mailto:[email-masked]]
 + Sent: Thursday, September 28, 2000 4:04 AM
 + To: Alex Hilbers
 + Cc: [email-masked]
 + Subject: Re: drlc model
 + 
 + 
 + Hi
 + 
 + YES . You can write an invented model which is not based on 
 + measurments,
 + but rather is based on the component's given parameters .
 + As an example : this file is an IBIS file for a 50 ohm 
 + resistor, it comes
 + as part of the default IBIS files supplied with the ICX simulator (by
 + Mentor Graphics).
 + 
 + |************************************************************
 + ****************
 + |
 + [IBIS Ver]      2.1
 + [File name]     icxresistor.ibs
 + [File Rev]      0.0
 + [Date]          10/24/97
 + [Source]        None.
 + [Notes]         Default model for resistor.
 + [Disclaimer]    This information is for modeling purposes only, and 
 +                 is not guaranteed.
 + |
 + |************************************************************
 + ***************
 + |
 + [Component]     icxresistor
 + [Manufacturer]  UNKNOWN
 + [Package]
 + |                typ             min             max
 + R_pkg            0               NA              NA
 + L_pkg            5.0nH           NA              NA
 + C_pkg            2.0pF           NA              NA
 + |
 + [Pin]  signal_name   model_name    R_pin  L_pin  C_pin
 + 1       UNKNOWN     resistor_50     NA     NA     NA
 + 2       UNKNOWN     resistor_50     NA     NA     NA
 + |
 + |************************************************************
 + ***************
 + |
 + [Model]  resistor_50
 + Model_type  Terminator
 + Polarity  Non-Inverting
 + C_comp  0  NA  NA
 + [Voltage range]  0  NA  NA
 + [Pullup Reference]  5  NA  NA
 + [Pulldown Reference]  0  NA  NA
 + [Power_clamp Reference]  5  NA  NA
 + [Gnd_clamp Reference]  0  NA  NA
 + [RSeries]  50  NA  NA
 + |
 + |************************************************************
 + ***************
 + |
 + [End]
 + 
 + 
 + Of course, you can always make a more accurate model by measuring or
 + simulating additional parameters (such as L and C for the resistor
 + package). 
 + 
 + best regards ,
 + 
 + Sarit Peled
 + [email-masked]
 +