Subject: RE: [IBIS-Users] IBIS website (Question, Internal 100 Ohms termination)
From: Muranyi, Arpad (arpad.muranyi@intel.com)
Date: Thu May 01 2003 - 12:21:18 PDT
Syed,
You could use the [Series Pin Mapping] keyword and a [Model] of
Series type which has a [R Series] keyword with 100 ohms in it.
The only problem is that you need to check whether the tool you
are using is supporting these keywords (or if they do, whether
it works or not).
Arpad
===============================================================
-----Original Message-----
From: Syed Huq [mailto:shuq@cisco.com]
Sent: Thursday, May 01, 2003 11:13 AM
To: ibis-users@eda.org
Subject: [IBIS-Users] IBIS website (Question, Internal 100 Ohms
termination)
------------- Begin Forwarded Message -------------
From: Gustavo Blando <gblando@axiowave.com>
To: "'shuq@cisco.com'" <shuq@cisco.com>
Subject: IBIS website (Question, Internal 100 Ohms termination)
Date: Thu, 1 May 2003 14:05:36 -0400
MIME-Version: 1.0
I would like to ask a question for an IBIS specification. I am not sure if
I am sending this email to the right place, if not please advise where it
should be sent.
Hello, if I have an internal 100 Ohms termination in my receiver between P
and N.
How is the appropriate way to model that in IBIS.
Please advise off different alternatives.
Thanks.
This is what I tried, but it did not work, It says this
ERROR - Component 'XXXX': [Series Pin Mapping] Pin2 '17': model type cannot
be Series or Series_switch.
[Pin] signal_name model_name R_pin L_pin C_pin
|
16 CLK1 Z630781_IN4 .174 3.79n .41p
17 _CLK1 Z630781_IN4 .171 3.6n .37p
|
[Diff Pin] inv_pin vdiff tdelay_typ tdelay_min tdelay_max
|
16 17 800mv NA NA NA
|
[Series Pin Mapping] pin_2 model_name
16 17 Series_100
|
[Model] Z630781_IN4
Model_type Input_ECL
Vinl = 1.657V
Vinh = 2.277V
C_comp 3.000pF NA NA
|
| variable typ min max
[Voltage Range] 3.300V NA NA
[GND Clamp Reference] 0.000V NA NA
[POWER Clamp Reference] 3.300V NA NA
|
[GND Clamp]
|
-3.300V -513.0mA NA NA
-1.054V -44.40mA NA NA
-912.0mV -20.00mA NA NA
-811.0mV -7.000mA NA NA
-750.0mV -2.300mA NA NA
-709.0mV -800.0uA NA NA
-669.0mV -200.0uA NA NA
-334.5mV 0.000A NA NA
1.449V 0.000A NA NA
6.600V 250.3uA NA NA
|
[POWER Clamp]
|
6.600V 0.000A NA NA
-326.7mV 0.000A NA NA
-490.0mV 86.25uA NA NA
-561.0mV 86.25uA NA NA
-632.0mV 179.3uA NA NA
-693.0mV 179.3uA NA NA
-754.0mV 473.4uA NA NA
-795.0mV 1.271mA NA NA
-835.0mV 3.069mA NA NA
-936.0mV 12.36mA NA NA
-1.038V 26.06mA NA NA
-3.300V 400.2mA NA NA
|
[Model] Series_100
Model_type Series
C_comp 0 0 0
|
[Voltage Range] 3.3 3.1 3.6
[R series] 100 86 120
Gus
Gustavo Blando
Axiowave Networks
Tel: (774) 348-4784
Fax: (774) 348-4008
email: gblando@axiowave.com
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