PSpice: Simulation of differential ECL gates

Last time I looked there was an ECL library, so, yes, there are true ECL libraries available. I never did that much simulation with them though, although they are included in the digio.lib, and they took great pains (and it was painful!) to make the levels come out right.

Charlie Edmondson Engineering Inc.

Thanks for your response, Charlie.

It looks like the library is actually named "dig_io.lib" in OrCAD 16.

Some of us have our own personalized 10K, 100K plus ECLIPS ;-)

Easy when you roll your own.

...Jim Thompson

--
| James E.Thompson, P.E.                           |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |
             
 I love to cook with wine     Sometimes I even put it in the food

The library seems to be "dig_ecl.lib", not "dig_io.lib".

Do you mean ECLinPS? I cannot find (P)Spice models for ECLinPS.

I rolled my own, but I'm in the chip design business ;-)

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at

| 1962 | I love to cook with wine Sometimes I even put it in the food

There are IBIS models available from OnSemi:

But as far as I know this format is not supported by PSpice.

PSpice does not support IBIS models.

...Jim Thompson

-- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at

| 1962 | I love to cook with wine Sometimes I even put it in the food

Also, remember, IBIS is purely an I/O model, not any type of form or functionaliity, including internal delays and timing. they are designed for signal integrity purposes, only.

Charlie

Yep. In other words, totally useless for anything other than PCB track analysis.

...Jim Thompson

--
| James E.Thompson, P.E.                           |    mens     |
| Analog Innovations, Inc.                         |     et      |
| Analog/Mixed-Signal ASIC\'s and Discrete Systems  |    manus    |
| Phoenix, Arizona  85048    Skype: Contacts Only  |             |
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  |
| E-mail Icon at http://www.analog-innovations.com |    1962     |
             
 Think things are bad now?  Wait until Obama "takes care" of you.

In article , To-Email- snipped-for-privacy@My-Web-Site.com says...>

They're useful in designing the opposite end, as well. IOW, "purely I/O models". ;-)

--
  Keith