r5682 - trunk/gta02-core/docs/ecn

[werner at docs.openmoko.org]

Author: werner
Date: 2009-10-07 21:41:48 +0200 (Wed, 07 Oct 2009)
New Revision: 5682

Modified:
   trunk/gta02-core/docs/ecn/ecn0038.txt
Log:
- replaced 39+18 = 47 with better approximation 56
- added spaces between numbers and units



Modified: trunk/gta02-core/docs/ecn/ecn0038.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0038.txt	2009-10-07 18:32:07 UTC (rev 5681)
+++ trunk/gta02-core/docs/ecn/ecn0038.txt	2009-10-07 19:41:48 UTC (rev 5682)
@@ -5,13 +5,13 @@
 place the filter caps C4119-C4122 and C4128 on the codec side of the common 
 mode coke. So they act in combination with B4105 as a lowpass filter who 
 removes incoming RF on the audio lines. I also would combine R4119/20 and 
-R4121/22 (39pF+18pF) to one 47pF capacitor (like the EMI filter in the earpiece
-path) so we can remove at least one unique component from the BOM.
+R4121/22 (39 pF+18 pF) to one 56 pF capacitor (like the EMI filter in the
+earpiece path) so we can remove at least one unique component from the BOM.
 
 To do:
-I do not see any particular reason why C4128 is 10pF it's there since GTA01.
-This needs to be clarified because this value is rarely used (vibrator) in GTA02
-schematics and might be worth replacing it.
+I do not see any particular reason why C4128 is 10 pF it's there since GTA01.
+This needs to be clarified because this value is rarely used (vibrator) in
+GTA02 schematics and might be worth replacing it.
 
 
 Author: Rene Harder <rehar at saweb.de>