PSpice: Simulation of differential ECL gates

Guest
Hi.

I currently simulate digital ECL circuits using ideal parts from
"dig_prim.olb". I put a DELAY on each gate's output to simulate the
propagation delay. This is important because the propagation delays
are in the dimension of a clock cycle.

Is anyone out there who also uses PSpice to simulate ECL circuits?
Does anyone know a more appropriate way therefor? Fore example the
availability of true ECL models?


Regards,
Norbert
 
On Mon, 10 Nov 2008 02:05:13 -0800 (PST), norbert.notz@gmx.de wrote:

Hi.

I currently simulate digital ECL circuits using ideal parts from
"dig_prim.olb". I put a DELAY on each gate's output to simulate the
propagation delay. This is important because the propagation delays
are in the dimension of a clock cycle.

Is anyone out there who also uses PSpice to simulate ECL circuits?
Does anyone know a more appropriate way therefor? Fore example the
availability of true ECL models?


Regards,
Norbert
Click to expand...
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.
 
On Mon, 10 Nov 2008 16:04:58 GMT, Charlie E. <edmondson@ieee.org>
wrote:

On Mon, 10 Nov 2008 02:05:13 -0800 (PST), norbert.notz@gmx.de wrote:

Hi.

I currently simulate digital ECL circuits using ideal parts from
"dig_prim.olb". I put a DELAY on each gate's output to simulate the
propagation delay. This is important because the propagation delays
are in the dimension of a clock cycle.

Is anyone out there who also uses PSpice to simulate ECL circuits?
Does anyone know a more appropriate way therefor? Fore example the
availability of true ECL models?


Regards,
Norbert

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.
Click to expand...
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
 
On Fri, 14 Nov 2008 01:57:04 -0800 (PST), norbert.notz@gmx.de wrote:

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

Do you mean ECLinPS? I cannot find (P)Spice models for ECLinPS.
Click to expand...
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 http://www.analog-innovations.com | 1962 |

I love to cook with wine Sometimes I even put it in the food
 
There are IBIS models available from OnSemi:
http://www.onsemi.com/pub_link/Collateral/MC100EP05D_33.IBS

But as far as I know this format is not supported by PSpice.
 
On Mon, 17 Nov 2008 04:27:08 -0800 (PST), norbert.notz@gmx.de wrote:

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

How complete is your "own" ECLinPS library?

Could you send me a copy of it?
Click to expand...
Due to device model vendor NDA constraints, I can't share :-(

...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
 
On Mon, 17 Nov 2008 04:31:18 -0800 (PST), norbert.notz@gmx.de wrote:

There are IBIS models available from OnSemi:
http://www.onsemi.com/pub_link/Collateral/MC100EP05D_33.IBS

But as far as I know this format is not supported by PSpice.
Click to expand...
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 http://www.analog-innovations.com | 1962 |

I love to cook with wine Sometimes I even put it in the food
 
On Mon, 17 Nov 2008 07:32:55 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote:

On Mon, 17 Nov 2008 04:31:18 -0800 (PST), norbert.notz@gmx.de wrote:

There are IBIS models available from OnSemi:
http://www.onsemi.com/pub_link/Collateral/MC100EP05D_33.IBS

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

PSpice does not support IBIS models.

...Jim Thompson
Click to expand...
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
 
On Mon, 17 Nov 2008 16:11:21 GMT, Charlie E. <edmondson@ieee.org>
wrote:

On Mon, 17 Nov 2008 07:32:55 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote:


On Mon, 17 Nov 2008 04:31:18 -0800 (PST), norbert.notz@gmx.de wrote:

There are IBIS models available from OnSemi:
http://www.onsemi.com/pub_link/Collateral/MC100EP05D_33.IBS

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

PSpice does not support IBIS models.

...Jim Thompson

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
Click to expand...
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 <qg63i4pcjnveiffnco9bub9j4kvbpio98t@4ax.com>, To-Email-
Use-The-Envelope-Icon@My-Web-Site.com says...>
On Mon, 17 Nov 2008 16:11:21 GMT, Charlie E. <edmondson@ieee.org
wrote:

On Mon, 17 Nov 2008 07:32:55 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote:


On Mon, 17 Nov 2008 04:31:18 -0800 (PST), norbert.notz@gmx.de wrote:

There are IBIS models available from OnSemi:
http://www.onsemi.com/pub_link/Collateral/MC100EP05D_33.IBS

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

PSpice does not support IBIS models.

...Jim Thompson

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

--
Keith
 
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