Doug,
The lowest cost solution is not always the best solution when “Time to Market”
is a significant factor. Sometimes the quickest to Market solution is the
best as long as it meets specs.
Aubrey
Sent from my iPhone
On May 12, 2018, at 10:15 PM, Doug Smith <doug@xxxxxxxxxx> wrote:
Again the lowest cost solution is best and often shielding is the most
expensive solution! A Faraday cage should not be necessary for a good design.
Doug
University of Oxford
Department for Continuing Education
Oxford, Oxfordshire, United Kingdom
--------------------------------------------------
Doug Smith
P.O. Box 60941
Boulder City, NV 89006-0941
TEL/FAX: 702-570-6108/570-6013
Mobile: 408-858-4528
Email: doug@xxxxxxxxxx
Web: http://www.dsmith.org
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On Sat, 12 May 2018 09:24:51 -0700, wrote:
The massive shielding is what we call a good Faraday Cage. Best solution if
a product allows it.
-----Original Message-----
From: Grasso, Charles
Sent: Friday, May 11, 2018 7:12 AM
To: doug@xxxxxxxxxx; leeritchey@xxxxxxxxxxxxx
Cc: joel@xxxxxxxxxx; gurushankara@xxxxxxxxxxx; si-list@xxxxxxxxxxxxx
Subject: RE: [SI-LIST] Re: Logic ground and chassis/safety ground
Sun Microsystems (many yrs ago now) adopted a DO160 /MILSTD approach to
noise abatement for their high end graphics products . That is: *no*
interconnection(between logic and chassis) technique combined with massive
product shielding and were very successful doing that. By successful I mean
that Sun passed all of its EMI/Immunity specs
with flying colors. Costly - but back then margins were not an issue!!
Thanks
Charles Grasso
(w) 303-706-5467