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
speled@t2.technion.ac.il

 
Received on Thu Sep 28 04:06:45 2000