r5529 - in trunk/gta02-core: components docs/ecn

rehar at docs.openmoko.org rehar at docs.openmoko.org
Sun Aug 23 00:04:49 CEST 2009


Author: rehar
Date: 2009-08-23 00:04:49 +0200 (Sun, 23 Aug 2009)
New Revision: 5529

Modified:
   trunk/gta02-core/components/INFO
   trunk/gta02-core/docs/ecn/ecn0015.txt
   trunk/gta02-core/docs/ecn/ecn0032.txt
Log:
- added Commit info to ECN0015
- added beads to INFO
- replaced bead in EMI filter ECN0032


Modified: trunk/gta02-core/components/INFO
===================================================================
--- trunk/gta02-core/components/INFO	2009-08-22 21:23:01 UTC (rev 5528)
+++ trunk/gta02-core/components/INFO	2009-08-22 22:04:49 UTC (rev 5529)
@@ -247,3 +247,14 @@
 S: bf2520
 A: BF2520-B2R4CAB
 D: http://www.anttechcorp.com/images/acx_bf_PDF/BF2520-B2R4CAB.pdf
+
+# GPS Ferrite Bead 1k1 OHM @1GHz BLM15HD102SN1
+S: FILTER
+A: gps-bead
+D: http://search.murata.co.jp/Ceramy/image/img/PDF/ENG/L0110S0101BLM15H.pdf
+
+# GLAMO Ferrite Bead MCB1005S601EA
+#S: FILTER
+#A: glamo-bead
+#D: http://www.inpaq.com.tw/en/specification/Specification-MCB-S&B%20Series-Updated20090331.pdf
+

Modified: trunk/gta02-core/docs/ecn/ecn0015.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0015.txt	2009-08-22 21:23:01 UTC (rev 5528)
+++ trunk/gta02-core/docs/ecn/ecn0015.txt	2009-08-22 22:04:49 UTC (rev 5529)
@@ -15,3 +15,4 @@
 
 Author: Rene Harder <rehar at saweb.de>
 Review: Werner Almesberger <werner at openmoko.org>, SVN 5490
+Commit: SVN 5528, Removed R4407/4405

Modified: trunk/gta02-core/docs/ecn/ecn0032.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0032.txt	2009-08-22 21:23:01 UTC (rev 5528)
+++ trunk/gta02-core/docs/ecn/ecn0032.txt	2009-08-22 22:04:49 UTC (rev 5529)
@@ -14,14 +14,13 @@
   (same as D4402)
 
 EMI protection 
-- add Pi-filter to all signal lines of the headset jack 
-  C1=47pF C2=47pF B=KLB0603K601SA (see ecn0032/pi-filter.png)
+- add Pi-filter to all signal lines of the headset jack 
+  (see ecn0032/pi-filter.png)
+  C1=47pF C2=47pF B=BLM15HD102SN1 1R25(DC) 
   possible references C4408-C4415, B4415-B4429
 - remove 22pF capacitors C4403/4404/4405
 - remove common mode choke B4102 
 
-Todo:
-cutoff frequency and attenuation at 2GHz with KLB0603K601SA needs to be verified
-(looks like impedance will be to low around 2GHz).
+attenuation: f=1..3GHz approx 55dB(IN)/68dB(OUT) (150pF varistor)
 
 Author: Rene Harder <rehar at saweb.de>




More information about the commitlog mailing list