At 05:17 PM 7/12/01 +0100, Steve Wiseman wrote:
Hmm. If you use numeric allocation offset (start this sheet at 100, etc),
the annotator gets it completely right - no allocation re-use. This is a
straightforward, easy to understand, bug. We've all done similar.
Actually, it does not get it
Steve Wiseman wrote:
And here I run into a brick wall. I have a vague memory that we have
discussed in the past a shortcoming of the global edit Copy Attribute
operation. I could find no way to use it to add a suffix. Perhaps someone
knows how to do this!
Hmm. Not me...
Is this the
I never heard of the 20H rule, So I did a search on it. I found some very
interesting articles on the subject, while I was searching I came across a
article on X2Y technology. Has anyone used any of these devices? If so do
they work as described and offer differential impedance within or close to
Hi
Does anyone have a formula or a link to a spice model for a logarithmic
scale potentiometer for use within the simulator on protel 99se sp6?
ie. so that if i specify the wiper at 50% the resistance is not 50/50 but
log law.
hopefully this will be the last stupid question guys :-)
Rich
having been in such a situation before i would suggest just making your
own based on the mech dwg with pad dimensions adjusted according to your
experience.
there are not a lot of pins on those uMax
True, but part of effective time management is managed laziness ;-)
That is, spend your time
Ivan,
can you point me directly towards a detail for the package size? I
will then send you the footprint I would use from SMT+ 's footprint patterns
if it exists already. I use SMT+ because they give good support for new
footprints that didn't previously exist in their reference. I
Brad:
Is there a copyright issue with SMT+'s footprint?
My fax # is 850-942-7905.
Does SMT+ provide you with the part footprint in native Protel PCB format,
or just a mech drawing of the land pattern?
Best regards,
Ivan Baggett
Bagotronix Inc.
website: www.bagotronix.com
- Original
When I saw Ivan's initial request, I remembered using a small 10 pin package
made by Analog Devices recently.
I looked on the web, found the uMax package drawing, and compared it to the
footprint I had made for that part, and it seemed to be compatible.
I cannot now re-create where I got the
Hey Vince.
I know that MTBF software exist, but it is very expensive. It also depends on
which kind of analyze you want to make:
part count or parts stress.
MTBF is not really used any more. The models it is based on is not valid, the
data on the components are not up to date and so on.
The
one last thought on this
it may not matter what footprint you use because when you really get
rolling and really need the chips they won't be available
it is Maxim you know :)
Dennis Saputelli
--
___
Ha ha ha ha ha, good one Dennis! That story sounds too familiar, that's
still SOP with Maxim is it?
Brad Velander,
Lead PCB Designer,
Norsat International Inc.,
#300 - 4401 Still Creek Dr.,
Burnaby, B.C., V5C 6G9.
Tel. (604) 292-9089 direct
Fax (604) 292-9010
website www.norsat.com
their game plan is to throw as many part types as they can against the
wall and see which ones stick
it works for them because the real money is in very high volume for
which there is usually enough planning and time
for the smaller guys ...
Dennis Saputelli
Bagotronix Tech Support wrote:
one last thought on this
it may not matter what footprint you use because when you really get
rolling and really need the chips they won't be available
it is Maxim you know :)
Yeah, they stink when it comes to parts availability. Their parts are
great, if you can get 'em. I try to avoid
Hello, all:
I got the info about the uMAX10 land pattern that I needed. Some kind folks
on the Protel group helped me. Thanks.
Best regards,
Ivan Baggett
Bagotronix Inc.
website: www.bagotronix.com
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* To post a message:
Bagotronix Tech Support wrote:
one last thought on this
it may not matter what footprint you use because when you really get
rolling and really need the chips they won't be available
it is Maxim you know :)
Yeah, they stink when it comes to parts availability. Their parts are
At 07:30 AM 7/13/01 -0700, John Williams wrote:
Take a look at the (freeware) server called Reference Designator
Modifier on the downloads page of:
http://www.qualecad.com/
It can add arbitrary suffixes and/or increment reference designators of
user selected schematic and PCB components.
At 10:27 AM 7/13/01 +0100, Steve Wiseman wrote:
[some response which was rooted in a misunderstanding of the full meanings
of my statements. It appears that we both agree on how the program actually
works and any differences were only semantic. It is moot who said it the
most correctly.]
If
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