On Thu, Jul 22, 2010 at 8:29 PM, Geoff Swan wrote:
I came across this (
http://www.tentlabs.com/InfoSupport/page35/files/Supply_decoupling.pdf)
some
time ago. I would be interested to hear peoples thoughts as there are
clearly many differing views on correct grounding and supply
decoupling.
On Thu, 2010-07-22 at 02:13 -0400, gene glick wrote:
I'm throwing this out to the list for opinions. . .
This design has mixed analog and digital circuits.
I do not know much about that, but I have seen a few discussions about
that topic in Internet. My conclusion: General discussion makes
Often stupid partitioning of GND in digital and analog can generate
much
trouble, so one single low impedance ground plane can be a simple and
not too bad solution.
Yep. But a single plane *may* lead to stray currents flowing near
sensitive analog stuff, like
ADC and DAC. I don't want to
One idea to consider is to start with a solid plane, and cut slots
around the sensitive analog parts, like big C shaped moats, squares
open on one side. You retain the big ground plane conductivity, but
you prevent stray currents from using your analog area as a short-cut.
Each analog chunk can
On 07/22/2010 09:37 AM, DJ Delorie wrote:
One idea to consider is to start with a solid plane, and cut slots
around the sensitive analog parts, like big C shaped moats, squares
open on one side. You retain the big ground plane conductivity, but
you prevent stray currents from using your analog
On Jul 22, 2010, at 9:50 AM, Eric Brombaugh ebrombau...@cox.net wrote:
On 07/22/2010 09:37 AM, DJ Delorie wrote:
One idea to consider is to start with a solid plane, and cut slots
around the sensitive analog parts, like big C shaped moats, squares
open on one side. You retain the big
On Thu, Jul 22, 2010 at 09:57:11AM -0700, Steven Michalske wrote:
On Jul 22, 2010, at 9:50 AM, Eric Brombaugh ebrombau...@cox.net wrote:
On 07/22/2010 09:37 AM, DJ Delorie wrote:
One idea to consider is to start with a solid plane, and cut slots
around the sensitive analog parts, like
On 07/22/2010 09:57 AM, Steven Michalske wrote:
Just make sure that if you've got high-speed digital lines that cross into the
'cubicles' they have gnd plane underneath them where they enter - don't let
fast signals cross the cuts because then the return currents have to take a
different path
On Thu, Jul 22, 2010 at 12:37 PM, DJ Delorie wrote:
One idea to consider is to start with a solid plane, and cut slots
around the sensitive analog parts, like big C shaped moats, squares
open on one side. You retain the big ground plane conductivity, but
you prevent stray currents from
I came across this
([1]http://www.tentlabs.com/InfoSupport/page35/files/Supply_decoupling.
pdf) some time ago. I would be interested to hear peoples thoughts as
there are clearly many differing views on correct grounding and supply
decoupling. The article certainly made a lot of
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