r5470 - trunk/gta02-core/docs/ecn

[werner at docs.openmoko.org]

Author: werner
Date: 2009-08-17 00:51:51 +0200 (Mon, 17 Aug 2009)
New Revision: 5470

Modified:
   trunk/gta02-core/docs/ecn/ecn0029.txt
Log:
Added more details on ECN0029.



Modified: trunk/gta02-core/docs/ecn/ecn0029.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0029.txt	2009-08-16 19:13:50 UTC (rev 5469)
+++ trunk/gta02-core/docs/ecn/ecn0029.txt	2009-08-16 22:51:51 UTC (rev 5470)
@@ -5,10 +5,11 @@
 and then to a group of buffer (> 1 uF) and filter capacitors
 (typically < 1 uF).
 
-Joerg suggested that at least the filter capacitors - and possibly
-also the buffer capacitors - should be moved to the PMU side of
-the 0R resistor, since they're supposed to filter noise originating
-from the PMU.
+Joerg suggested that at least the filter capacitors - and if possible
+also the buffer capacitors - should be moved to the PMU side of the
+0R resistor, since they're supposed to filter noise originating
+from the PMU (in the case of DC-DC converters), and ensure stability
+of the regulation (in both cases).
 
 
 Author: Werner Almesberger <werner at openmoko.org>