Re: ECL logic SPICE models

On Tue, 15 Sep 2009 14:53:13 -0700, Joerg <invalid@xxxxxxxxxxxxxxx>
wrote:

Jim Thompson wrote:
On Tue, 15 Sep 2009 14:21:11 -0700, Joerg <invalid@xxxxxxxxxxxxxxx>
wrote:

Jim Thompson wrote:
On Mon, 14 Sep 2009 20:17:10 -0700, Joerg <invalid@xxxxxxxxxxxxxxx>
wrote:

Jim Thompson wrote:
On Mon, 14 Sep 2009 17:01:07 -0700, Joerg <invalid@xxxxxxxxxxxxxxx>
wrote:

Charlie E. wrote:
[snip]
Yes, Jim, I think I sent that to you back in the day. But, you have
to be careful. It really does what is in effect an inverse FFT of the
Sparams, so it doesn't include any of the really important data you
need to do a good spice simulation when you are concerned more with
transient response.
That's exactly the point, especially with LDMOS. When a big old fat one
goes phut ... *KABLAM* it's mucho Dolares down the drain. Not the best
way to make friends at a new client.


... IBIS models are a 'little' better, but they are
also very behavioral and I was always interested in the little
'gotchas' that following them too closely led to.

Charlie
Joerg, You have way too much "phut ... *KABLAM*" in your life! What
is it you're doing to cause all that ?:-)

Crikey! Here I am months from the big '70, and I can count all my
"phut ... *KABLAM*"'s on one hand... and they were ALL in the lab, NOT
in the field, just great entertainment for my technicians... nothing
quite like the boss getting knocked off his lab stool to amuse the
troops ;-)
Mine are also in the lab. It usually happens when we try to push the
envelope a bit too much, when models don't jibe or when something else
breaks down and causes a huge reflection or things like that. I do a lot
of heavy duty pulse stuff where this is a normal part of life.

You are doing IC design. That's like signal corp versus a job in the
artillery.
What a pile of horse pucky. Who do you think did Hubble magnetic
support, a satellite spinner for objects as big as a car, and
automotive environment for years and years and years ?:-)

Then why does the electronics in cars croak so often ... ?

<duck and run>

Only GM (Government Motors) and Mercedes, judging from local
observation ;-) ...


Wasn't it Ford who managed to place an ingnition controller hybrid or
something similar on top of the engine? I thought that was a rather
stupid thing to do. Probably the cause of issues like "doesn't start
when still warm".

I was referring to contemporary auto manufacturers. Back in time Ford
certainly had their issues... mostly mechanical. In the late '60's
(IIRC) Ford was fond of their ad, "... brighter idea", with a
hand-held light bulb. I had my technician blow out a whole case of
100W light bulbs, then sent them to Arnold Thibideau, electrical
engineering manager at the Dearborn operation ;-)


The electrical failures in my Chrysler weren't truly electrical. They
had mounted the alternator on an aluminum strut. Now that was really stupid.


... As you may properly deduce from my postings here, I
am of the big hammer school... if I can't kill it with a big hammer,
get a bigger one. I don't tolerate pansy designers.


As a consultant, I just politely decline when I realize that the rest of
the team ain't up to snuff. After all, that carries some liability risks
with it.

Same here, though I'm more often inclined to make them out as asses
during a heavily attended design review ;-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

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

Quantcast