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Today's Topics:
1. r5589 - trunk/gta02-core (re...@docs.openmoko.org)
2. r5590 - in trunk/gta02-core: . docs/ecn (re...@docs.openmoko.org)
3. r5591 - trunk/gta02-core/docs/ecn (re...@docs.openmoko.org)
--- Begin Message ---
Author: rehar
Date: 2009-08-31 00:23:18 +0200 (Mon, 31 Aug 2009)
New Revision: 5589
Modified:
trunk/gta02-core/audio.sch
Log:
implemented ecn0033
Modified: trunk/gta02-core/audio.sch
===================================================================
--- trunk/gta02-core/audio.sch 2009-08-30 22:18:10 UTC (rev 5588)
+++ trunk/gta02-core/audio.sch 2009-08-30 22:23:18 UTC (rev 5589)
@@ -1,4 +1,4 @@
-EESchema Schematic File Version 2 date Sun 30 Aug 2009 05:12:18 PM CDT
+EESchema Schematic File Version 2 date Sun 30 Aug 2009 05:22:47 PM CDT
LIBS:power,device,conn,gta02-core
EELAYER 24 0
EELAYER END
@@ -1229,8 +1229,7 @@
U 1 1 4A41AAB5
P 4350 8950
F 0 "C4304" V 4250 8750 50 0000 L CNN
-F 1 "100n" V 4400 9100 50 0000 L CNN
-F 2 "0402" H 4450 9100 60 0001 C CNN
+F 1 "1u" V 4400 9100 50 0000 L CNN
1 4350 8950
0 1 1 0
$EndComp
@@ -1239,8 +1238,7 @@
U 1 1 4A41AA80
P 4350 8050
F 0 "C4303" V 4250 7850 50 0000 L CNN
-F 1 "100n" V 4400 8200 50 0000 L CNN
-F 2 "0402" H 4450 8200 60 0001 C CNN
+F 1 "1u" V 4400 8200 50 0000 L CNN
1 4350 8050
0 1 1 0
$EndComp
@@ -1492,7 +1490,7 @@
P 7750 8150
F 0 "C4406" V 7650 7950 50 0000 L CNN
F 1 "1u" V 7800 8250 50 0000 L CNN
-F 2 "0603" H 7850 8300 60 0001 C CNN
+F 2 "0402" H 7850 8300 60 0001 C CNN
1 7750 8150
0 1 1 0
$EndComp
@@ -1596,8 +1594,7 @@
U 1 1 4A3EF67B
P 9850 1450
F 0 "C3018" V 9750 1250 50 0000 L CNN
-F 1 "100n" V 9900 1600 50 0000 L CNN
-F 2 "0402" H 9950 1600 60 0001 C CNN
+F 1 "1u" V 9900 1600 50 0000 L CNN
1 9850 1450
0 1 1 0
$EndComp
@@ -1606,7 +1603,7 @@
U 1 1 4A3EF672
P 9850 1750
F 0 "C3011" V 9750 1550 50 0000 L CNN
-F 1 "100n" V 9900 1900 50 0000 L CNN
+F 1 "1u" V 9900 1900 50 0000 L CNN
F 2 "0402" H 9950 1900 60 0001 C CNN
1 9850 1750
0 1 1 0
@@ -1896,8 +1893,7 @@
U 1 1 4A3EE4C7
P 3200 4450
F 0 "C3016" H 2900 4550 50 0000 L CNN
-F 1 "100n" H 2950 4350 50 0000 L CNN
-F 2 "0402" H 3300 4600 60 0001 C CNN
+F 1 "1u" H 2950 4350 50 0000 L CNN
1 3200 4450
1 0 0 -1
$EndComp
@@ -1920,7 +1916,7 @@
U 1 1 4A3EE30C
P 3400 3600
F 0 "C3006" V 3300 3400 50 0000 L CNN
-F 1 "100n" V 3450 3750 50 0000 L CNN
+F 1 "1u" V 3450 3750 50 0000 L CNN
F 2 "0402" H 3500 3750 60 0001 C CNN
1 3400 3600
0 1 1 0
@@ -1930,7 +1926,7 @@
U 1 1 4A3EE2EF
P 3400 3350
F 0 "C3007" V 3300 3150 50 0000 L CNN
-F 1 "100n" V 3450 3500 50 0000 L CNN
+F 1 "1u" V 3450 3500 50 0000 L CNN
F 2 "0402" H 3500 3500 60 0001 C CNN
1 3400 3350
0 1 1 0
--- End Message ---
--- Begin Message ---
Author: rehar
Date: 2009-08-31 00:31:30 +0200 (Mon, 31 Aug 2009)
New Revision: 5590
Modified:
trunk/gta02-core/audio.sch
trunk/gta02-core/docs/ecn/ecn0032.txt
trunk/gta02-core/docs/ecn/ecn0033.txt
Log:
- added commit to ecn0032 and ecn0033
- added missing footprint values to audio sheet
Modified: trunk/gta02-core/audio.sch
===================================================================
--- trunk/gta02-core/audio.sch 2009-08-30 22:23:18 UTC (rev 5589)
+++ trunk/gta02-core/audio.sch 2009-08-30 22:31:30 UTC (rev 5590)
@@ -1,4 +1,4 @@
-EESchema Schematic File Version 2 date Sun 30 Aug 2009 05:22:47 PM CDT
+EESchema Schematic File Version 2 date Sun 30 Aug 2009 05:27:52 PM CDT
LIBS:power,device,conn,gta02-core
EELAYER 24 0
EELAYER END
@@ -747,6 +747,7 @@
P 14400 8150
F 0 "B4417" H 14400 8300 60 0000 C CNN
F 1 "BLM15HD102SN1" H 14400 8050 60 0000 C CNN
+F 2 "0402" H 14340 8360 60 0001 C CNN
1 14400 8150
1 0 0 -1
$EndComp
@@ -794,6 +795,7 @@
P 11150 8150
F 0 "B4418" H 11150 8300 60 0000 C CNN
F 1 "BLM15HD102SN1" H 11150 8050 60 0000 C CNN
+F 2 "0402" H 11090 8360 60 0001 C CNN
1 11150 8150
1 0 0 -1
$EndComp
@@ -841,6 +843,7 @@
P 10500 8600
F 0 "B4419" H 10500 8750 60 0000 C CNN
F 1 "BLM15HD102SN1" H 10500 8500 60 0000 C CNN
+F 2 "0402" H 10440 8810 60 0001 C CNN
1 10500 8600
1 0 0 -1
$EndComp
@@ -897,6 +900,7 @@
P 12150 9000
F 0 "B4416" H 12150 9150 60 0000 C CNN
F 1 "BLM15HD102SN1" H 12150 8900 60 0000 C CNN
+F 2 "0402" H 12090 9210 60 0001 C CNN
1 12150 9000
1 0 0 -1
$EndComp
@@ -1230,6 +1234,7 @@
P 4350 8950
F 0 "C4304" V 4250 8750 50 0000 L CNN
F 1 "1u" V 4400 9100 50 0000 L CNN
+F 2 "0402" V 4200 8700 60 0001 C CNN
1 4350 8950
0 1 1 0
$EndComp
@@ -1239,6 +1244,7 @@
P 4350 8050
F 0 "C4303" V 4250 7850 50 0000 L CNN
F 1 "1u" V 4400 8200 50 0000 L CNN
+F 2 "0402" V 4200 7800 60 0001 C CNN
1 4350 8050
0 1 1 0
$EndComp
@@ -1595,6 +1601,7 @@
P 9850 1450
F 0 "C3018" V 9750 1250 50 0000 L CNN
F 1 "1u" V 9900 1600 50 0000 L CNN
+F 2 "0402" V 9700 1200 60 0001 C CNN
1 9850 1450
0 1 1 0
$EndComp
@@ -1894,6 +1901,7 @@
P 3200 4450
F 0 "C3016" H 2900 4550 50 0000 L CNN
F 1 "1u" H 2950 4350 50 0000 L CNN
+F 2 "0402" H 2850 4600 60 0001 C CNN
1 3200 4450
1 0 0 -1
$EndComp
Modified: trunk/gta02-core/docs/ecn/ecn0032.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0032.txt 2009-08-30 22:23:18 UTC (rev
5589)
+++ trunk/gta02-core/docs/ecn/ecn0032.txt 2009-08-30 22:31:30 UTC (rev
5590)
@@ -25,3 +25,4 @@
Author: Rene Harder <re...@saweb.de>
+Commit: SVN 5588
Modified: trunk/gta02-core/docs/ecn/ecn0033.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0033.txt 2009-08-30 22:23:18 UTC (rev
5589)
+++ trunk/gta02-core/docs/ecn/ecn0033.txt 2009-08-30 22:31:30 UTC (rev
5590)
@@ -21,3 +21,4 @@
Author: Rene Harder <re...@saweb.de>
+Commit: SVN 5589
--- End Message ---
--- Begin Message ---
Author: rehar
Date: 2009-08-31 05:28:50 +0200 (Mon, 31 Aug 2009)
New Revision: 5591
Added:
trunk/gta02-core/docs/ecn/ecn0036.txt
trunk/gta02-core/docs/ecn/ecn0037.txt
trunk/gta02-core/docs/ecn/ecn0038.txt
Modified:
trunk/gta02-core/docs/ecn/STATUS
trunk/gta02-core/docs/ecn/ecn0010.txt
trunk/gta02-core/docs/ecn/ecn0015.txt
trunk/gta02-core/docs/ecn/ecn0022.txt
Log:
- added commit to ecn0010 and ecn0015
- removed ecn0020 from open ecn list
- added new ecn0036 "Removal of decoupling capacitor C3020"
- added new ecn0037 "Route ROUT1/LOUT1 back to LINE1/LINE2 input"
- added new ecn0038 "Loudspeaker EMI filter"
Modified: trunk/gta02-core/docs/ecn/STATUS
===================================================================
--- trunk/gta02-core/docs/ecn/STATUS 2009-08-30 22:31:30 UTC (rev 5590)
+++ trunk/gta02-core/docs/ecn/STATUS 2009-08-31 03:28:50 UTC (rev 5591)
@@ -35,6 +35,9 @@
0033 Execute Replace coupling capacitors for input/output lines
0034 Discuss Route additional SPI/GPIO pins to debug connector
0035 Discuss Kill WLAN unused RF components
+0036 Discuss Removal of decoupling capacitor C3020
+0037 Discuss Route ROUT1/LOUT1 back to LINE1/LINE2 input
+0038 Discuss Loudspeaker EMI filter
Open ECNs
---------
@@ -48,7 +51,6 @@
0017 BT
0018 AUDIO
0019 AUDIO
-0020 AUDIO
0024 GPS
0026 SD-SIM
0027 General
@@ -57,3 +59,6 @@
0032 AUDIO
0033 AUDIO
0034 IO
+0036 AUDIO
+0037 AUDIO
+0038 AUDIO
Modified: trunk/gta02-core/docs/ecn/ecn0010.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0010.txt 2009-08-30 22:31:30 UTC (rev
5590)
+++ trunk/gta02-core/docs/ecn/ecn0010.txt 2009-08-31 03:28:50 UTC (rev
5591)
@@ -26,4 +26,4 @@
Author: Rene Harder <re...@saweb.de>
-
+Commit: SVN 5118
Modified: trunk/gta02-core/docs/ecn/ecn0015.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0015.txt 2009-08-30 22:31:30 UTC (rev
5590)
+++ trunk/gta02-core/docs/ecn/ecn0015.txt 2009-08-31 03:28:50 UTC (rev
5591)
@@ -14,5 +14,6 @@
Author: Rene Harder <re...@saweb.de>
+Commit: SVN 5201
Review: Werner Almesberger <wer...@openmoko.org>, SVN 5490
Commit: SVN 5528, Removed R4407/4405
Modified: trunk/gta02-core/docs/ecn/ecn0022.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0022.txt 2009-08-30 22:31:30 UTC (rev
5590)
+++ trunk/gta02-core/docs/ecn/ecn0022.txt 2009-08-31 03:28:50 UTC (rev
5591)
@@ -21,5 +21,5 @@
Author: Rene Harder <re...@saweb.de>
-Commit: SVN 5188 ?
+Commit: SVN 5188
Review: Werner Almesberger <wer...@openmoko.org>, SVN5565
Added: trunk/gta02-core/docs/ecn/ecn0036.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0036.txt (rev 0)
+++ trunk/gta02-core/docs/ecn/ecn0036.txt 2009-08-31 03:28:50 UTC (rev
5591)
@@ -0,0 +1,9 @@
+Removal of decoupling capacitor C3020
+
+
+This capacitor is NC right now and there are no plans to change this.
+So we can remove C3020 to create more room for other components (audio rework).
+
+
+Author: Rene Harder <re...@saweb.de>
+
Added: trunk/gta02-core/docs/ecn/ecn0037.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0037.txt (rev 0)
+++ trunk/gta02-core/docs/ecn/ecn0037.txt 2009-08-31 03:28:50 UTC (rev
5591)
@@ -0,0 +1,31 @@
+Route ROUT1/LOUT1 back to LINE1/LINE2 input
+
+
+In Joerg's GTA03 proposal he connected the stereo line from the headset jack
+back to the line inputs of the codec. So you are able to connect a line
+compatible audio source to it and record or process the audio stream within the
+phone.
+
+
+We need to connect the codec side of the coupling capacitors C4110 and C4411
+trough a 1k series resistor (R3030/R3031) to the line input (LINE1 and LINE2)
+of the codec. To be within the standard of line compatible audio inputs we need
+to increase the input impedance to 10k Ohm for a low impedance input. Therefore
+we have to change R4416 and R4417 to at least 10k.
+
+Note: In general the input impedance for a regular line input (high impedance)
+is around 47k Ohm. We cannot change R4416/4417 to 47k Ohm as required because
+we need a proper pulldown for the jack insert detection. The voltage divider
+is formed out of the codec's internal 100k Ohm pull-up the 10k Ohm series
+resistance R4402 and the pulldown resistor R4116. If we increase R4416 to 47k
+Ohm the low level voltage would be around 1.2V, the codec maximum low level is
+at 0.8V so we would not be able to generate an interrupt during jack insert.
+
+Comments:
+To use this feature you would still need a special (probably self made) adapter
+cable, because a 2.5mm audio jack is very uncommon for any audio equipment.
+(Rene)
+
+
+Author: Rene Harder <re...@saweb.de>
+
Added: trunk/gta02-core/docs/ecn/ecn0038.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0038.txt (rev 0)
+++ trunk/gta02-core/docs/ecn/ecn0038.txt 2009-08-31 03:28:50 UTC (rev
5591)
@@ -0,0 +1,17 @@
+Loudspeaker EMI filter
+
+
+To protect the codec from incoming interferences it would be more efficient to
+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.
+
+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.
+
+
+Author: Rene Harder <re...@saweb.de>
--- End Message ---
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