[SI-LIST] Re: Right Angle Bends
- From: Michael Greim <mgreim001@xxxxxxxxx>
- To: Stefan Milnor <stefan.milnor@xxxxxxxxxxxxxx>
- Date: Sat, 16 Jul 2011 11:46:35 -0400
Stefan,
Did you mean the MECL System Design Handbook?
http://s.eeweb.com/pl/1276642244-MECL-system-design-handbook.pdf
If you are old school and want to do some highlighting you
can also find this on amazon with the classic cover starting
at 0.88.
http://www.amazon.com/gp/offer-listing/B0006YFW7G/ref=dp_olp_used?ie=UTF8&condition=used
Job Bob says check it on out.......
Best Regards,
Michael C. Greim
And all this science they don't understand
Is just my job six days a week.....
We will either find a way or make one -Hannibal
In the middle of every difficulty lies opportunity -Al Einstein
On Sat, Jul 16, 2011 at 11:29 AM, Stefan Milnor <
stefan.milnor@xxxxxxxxxxxxxx> wrote:
> There were plenty of signal integrity issues in the days of DIPs and
> wire wrap. The structures were just bigger. One of my favorite signal
> integrity references is the Motorola ECL (Emitter Coupled Logic)
> Handbook, long out - of -print. It is amazing what they did in the '60s
> with high speed ECL wire-wrap constructions. And everything that you
> have been debating can be analyzed and explained with a set of equations
> developed in 1862 .....
>
> - Stefan
>
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
> On Behalf Of Michael Greim
> Sent: Saturday, July 16, 2011 5:13 AM
> To: Lee Ritchey
> Cc: Scott McMorrow; Julian Ferry; si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: Right Angle Bends
>
> Regarding "myths" and SI, Folks look everywhere and believe
> what they "think" is there, and other folks may very well go, yup
> it's there. However, they only really "see", when the light is good.
> After all, if someone posted something on the SI list, then by
> definition
> it has to be true because only "the experts" on any given topic post
> there.
> Unless of course, they are a manager.........;-) or mangler as some
> may view it, on items of a technical nature.......8-P......when the
> light is good.......8-O.
>
> Everyone knows that if you can't see it then it is not there, much like
> the emperors new clothes. Lab correlation and validation will verify
> the lack of clothing. Ya myt could sim this as well.
>
> In the days of DIPs there was no need for any signal or power integrity
> and a twisted pair was merely two wire wrap wires put into a drill and
> the trigger being pulled, and wirewrap established the ideal spiral
> serpentining for signal transmission.
>
> That is all............
>
> Best Regards,
>
> Michael C. Greim
>
> And all this science they don't understand
> Is just my job six days a week.....
>
> We will either find a way or make one -Hannibal
>
> In the middle of every difficulty lies opportunity -Al Einstein
>
> On Fri, Jul 15, 2011 at 6:47 PM, Lee Ritchey
> <leeritchey@xxxxxxxxxxxxx>wrote:
>
> > It is odd that those who fret over right angle bends seem to ignore
> the
> > fact
> > that there is at least on at every via where a trace connects. My old
> > friend, Dan Murphy, called this "looking where the light is good."
> >
> > The same engineers used dual in line IC packages by the millions with
> as
> > many as three right angle bends in each lead. They weren't visible,
> so
> > they
> > didn't count!
> >
> > --
> >
>
>
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