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Today's Topics:
1. r5876 - in trunk/gta02-core: . bom (wer...@docs.openmoko.org)
2. r5877 - in trunk/gta02-core: . bom bom/arrow bom/dk
(wer...@docs.openmoko.org)
3. r5878 - trunk/gta02-core/docs/ecn (wer...@docs.openmoko.org)
4. r5879 - in trunk/gta02-core: . docs/ecn (wer...@docs.openmoko.org)
5. r5880 - trunk/eda/boom (wer...@docs.openmoko.org)
6. r5881 - in trunk/gta02-core/bom: . dk (wer...@docs.openmoko.org)
7. r5882 - in trunk/gta02-core/bom: . research
(wer...@docs.openmoko.org)
--- Begin Message ---
Author: werner
Date: 2010-04-01 22:03:37 +0200 (Thu, 01 Apr 2010)
New Revision: 5876
Modified:
trunk/gta02-core/bom/Makefile
trunk/gta02-core/bom/gta02-core.sub
trunk/gta02-core/pmu.sch
Log:
Making another small step towards using parameter-based part selection more
often, we specify the (comparably high) voltage of C1764.
- pmu.sch: specified minimum voltage of C1764, which is Vth(ovp) = 20 V, from
table 8.10.4 of the PMU data sheet
- bom/Makefile (SHOW_PRETTY): after the total cost, show the number of items
- bom/gta02-core.sub: take capacitor voltage rating from KiCad BOM (if present)
Modified: trunk/gta02-core/bom/Makefile
===================================================================
--- trunk/gta02-core/bom/Makefile 2010-04-01 17:09:21 UTC (rev 5875)
+++ trunk/gta02-core/bom/Makefile 2010-04-01 20:03:37 UTC (rev 5876)
@@ -99,7 +99,8 @@
SHOW_PRETTY = (echo '\#ORD'; grep '^$(1) ' gta02-core.ord ; ) | \
$(BOOM) prettyord - $(2) | \
sed 's/^... //' | \
- awk '{ s += $$(NF); print; } END { print "$(3)", s }'
+ awk '{ s += $$(NF); if ($$(NF)+0) n++; print; } \
+ END { print "$(3)", s, "items:", n }'
show-dk: gta02-core.ord dk/digi-key.dsc
$(call SHOW_PRETTY,DIGI-KEY,dk/digi-key.dsc,USD)
Modified: trunk/gta02-core/bom/gta02-core.sub
===================================================================
--- trunk/gta02-core/bom/gta02-core.sub 2010-04-01 17:09:21 UTC (rev 5875)
+++ trunk/gta02-core/bom/gta02-core.sub 2010-04-01 20:03:37 UTC (rev 5876)
@@ -18,6 +18,7 @@
C[0-9]* {
-> T=C
VAL=$F -> C=$VAL
+ FN=*V -> V=>=$FN
}
L[0-9]* {
Modified: trunk/gta02-core/pmu.sch
===================================================================
--- trunk/gta02-core/pmu.sch 2010-04-01 17:09:21 UTC (rev 5875)
+++ trunk/gta02-core/pmu.sch 2010-04-01 20:03:37 UTC (rev 5876)
@@ -1,4 +1,4 @@
-EESchema Schematic File Version 2 date Wed Mar 31 15:13:54 2010
+EESchema Schematic File Version 2 date Thu Apr 1 16:31:54 2010
LIBS:power,device,conn,gta02-core,gta02-core-cache
EELAYER 24 0
EELAYER END
@@ -2087,6 +2087,7 @@
F 0 "C1764" V 12250 6750 50 0000 L CNN
F 1 "10u" V 12600 6750 50 0000 L CNN
F 2 "1206" H 12450 6750 60 0001 C CNN
+F 4 "20V" V 12720 6750 50 0000 C CNN "V"
1 12450 6750
0 1 1 0
$EndComp
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2010-04-01 22:51:11 +0200 (Thu, 01 Apr 2010)
New Revision: 5877
Modified:
trunk/gta02-core/bom/arrow/arrow.dsc
trunk/gta02-core/bom/arrow/arrow.equ
trunk/gta02-core/bom/arrow/arrow.inv
trunk/gta02-core/bom/dk/digi-key.equ
trunk/gta02-core/bom/gta02-core.sub
trunk/gta02-core/bom/misc.chr
trunk/gta02-core/cpu.sch
Log:
Some LED cleanup. Added more inductors.
SVN Rev -- No source -- -- Digi-Key -- -- Farnell --- --- Mouser ---
r5877 17 75 1286
- bom/misc.chr, bom/dk/digi-key.equ: added more inductors
- bom/arrow/: added HT-110USD orange LED
- cpu.sch: changed value of LED from HT110 to HT-110USD and of HT210 to
HT-210UD/NB, because the letters indicate the color
- cpu.sch: set footprint (to HT210) for LED1501 and LED1502
- bom/gta02-core.sub: HT-110 and HT-210 no longer need translation
Modified: trunk/gta02-core/bom/arrow/arrow.dsc
===================================================================
--- trunk/gta02-core/bom/arrow/arrow.dsc 2010-04-01 20:03:37 UTC (rev
5876)
+++ trunk/gta02-core/bom/arrow/arrow.dsc 2010-04-01 20:51:11 UTC (rev
5877)
@@ -1,3 +1,4 @@
#DSC
ARROW PCF50633HN043UM PCF50633HN043UM
+ARROW HT-110USD-4939 LED Uni-Color Orange 636nm 2-Pin Chip LED
ARROW HT-210UD/NB LED Bi-Color Amber/Blue 468nm/609nm
Modified: trunk/gta02-core/bom/arrow/arrow.equ
===================================================================
--- trunk/gta02-core/bom/arrow/arrow.equ 2010-04-01 20:03:37 UTC (rev
5876)
+++ trunk/gta02-core/bom/arrow/arrow.equ 2010-04-01 20:51:11 UTC (rev
5877)
@@ -1,3 +1,4 @@
#EQU
ARROW PCF50633HN043UM NXP PCF50633HN/04/N3,5
+ARROW HT-110USD-4939 HARVATEK HT-110USD
ARROW HT-210UD/NB HARVATEK HT-210UD/NB
Modified: trunk/gta02-core/bom/arrow/arrow.inv
===================================================================
--- trunk/gta02-core/bom/arrow/arrow.inv 2010-04-01 20:03:37 UTC (rev
5876)
+++ trunk/gta02-core/bom/arrow/arrow.inv 2010-04-01 20:51:11 UTC (rev
5877)
@@ -1,3 +1,4 @@
#INV
ARROW PCF50633HN043UM 0 USD 1000 0.39
+ARROW HT-110USD-4939 0 USD 3000 0.054
ARROW HT-210UD/NB 0 USD 1 0.24
Modified: trunk/gta02-core/bom/dk/digi-key.equ
===================================================================
--- trunk/gta02-core/bom/dk/digi-key.equ 2010-04-01 20:03:37 UTC (rev
5876)
+++ trunk/gta02-core/bom/dk/digi-key.equ 2010-04-01 20:51:11 UTC (rev
5877)
@@ -97,6 +97,10 @@
DIGI-KEY 712-1160-1-ND JOHANSON 500R07S0R2BV4T
DIGI-KEY 712-1299-1-ND JOHANSON 251R14S0R2AV4T
+DIGI-KEY 712-1459-1-ND JOHANSON L-07C3N9SV6T
+DIGI-KEY 712-1417-1-ND JOHANSON L-07C4N7SV6T
+DIGI-KEY 712-1458-1-ND JOHANSON L-07C39NJV6T
+
DIGI-KEY 399-3134-1-ND KEMET C0805C475K9PACTU
DIGI-KEY 399-5245-1-ND KEMET T528M107M010ATE200
Modified: trunk/gta02-core/bom/gta02-core.sub
===================================================================
--- trunk/gta02-core/bom/gta02-core.sub 2010-04-01 20:03:37 UTC (rev 5876)
+++ trunk/gta02-core/bom/gta02-core.sub 2010-04-01 20:51:11 UTC (rev 5877)
@@ -57,8 +57,6 @@
VAL=FH23-39S -> VAL=FH23-39S-0.3SHW(05)
VAL=FH23-39S-0.3SHW -> VAL=FH23-39S-0.3SHW(05)
VAL=HB414_IV01E -> VAL=HB414-IV01E
-VAL=HT110 -> VAL=HT-110USD5
-VAL=HT210 -> VAL=HT-210UD/NB
VAL=K4M51323PE -> VAL=K4M51323PC-DG75
VAL=MM8430-2610 -> VAL=MM8430-2610RB3 # WLAN
VAL=P06-0231-00 -> VAL=PPR06-023104 # typo ?
Modified: trunk/gta02-core/bom/misc.chr
===================================================================
--- trunk/gta02-core/bom/misc.chr 2010-04-01 20:03:37 UTC (rev 5876)
+++ trunk/gta02-core/bom/misc.chr 2010-04-01 20:51:11 UTC (rev 5877)
@@ -31,7 +31,7 @@
# MURATA
-MURATA LQP15MN4N7B02 T=L FP=0402 L=4.7nH TOL=0.1nH I=160mA
+MURATA LQP15MN4N7B02 T=L FP=0402 L=4.7nH TOL=0.1nH I=160mA RF=6GHz
MURATA LQP15MN6N2B02 T=L FP=0402 L=6.2nH TOL=0.1nH I=130mA
# http://search.murata.co.jp/Ceramy/image/img/PDF/ENG/GRM1555C1H100JZ01.pdf
@@ -112,6 +112,10 @@
JOHANSON 500R07S0R2BV4T T=C M=NP0 C=200fF TOL=0.1pF V=50V FP=0402
JOHANSON 251R14S0R2AV4T T=C M=NP0 C=200fF TOL=0.05pF V=250V
FP=0603
+JOHANSON L-07C3N9SV6T T=L L=3.9nH TOL=0.3nH R=220mR I=300mA FP=0402
RF=7GHz
+JOHANSON L-07C4N7SV6T T=L L=4.7nH TOL=0.3nH R=240mR I=300mA FP=0402
RF=6GHz
+JOHANSON L-07C39NJV6T T=L L=39nH TOL=5% R=1.2R I=150mA FP=0402
RF=1.4GHz
+
# Kemet
# http://www.kemet.com/datasheets&C0805C475K9PACTU
Modified: trunk/gta02-core/cpu.sch
===================================================================
--- trunk/gta02-core/cpu.sch 2010-04-01 20:03:37 UTC (rev 5876)
+++ trunk/gta02-core/cpu.sch 2010-04-01 20:51:11 UTC (rev 5877)
@@ -1,4 +1,4 @@
-EESchema Schematic File Version 2 date Sat Jan 30 15:19:34 2010
+EESchema Schematic File Version 2 date Thu Apr 1 17:50:32 2010
LIBS:power,device,conn,gta02-core,gta02-core-cache
EELAYER 24 0
EELAYER END
@@ -1072,7 +1072,8 @@
U 1 1 4A45487D
P 6400 2850
F 0 "LED1502" H 6400 3000 60 0000 C CNN
-F 1 "HT110" H 6400 2700 60 0000 C CNN
+F 1 "HT-110USD" H 6400 2700 60 0000 C CNN
+F 2 "HT210" H 6400 2850 60 0001 C CNN
1 6400 2850
1 0 0 1
$EndComp
@@ -1081,7 +1082,8 @@
U 1 1 4A4542FD
P 6400 3700
F 0 "LED1501" H 6400 4000 60 0000 C CNN
-F 1 "HT210" H 6400 3350 60 0000 C CNN
+F 1 "HT-210UD/NB" H 6400 3350 60 0000 C CNN
+F 2 "HT210" H 6400 3700 60 0001 C CNN
1 6400 3700
1 0 0 1
$EndComp
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2010-04-01 23:14:50 +0200 (Thu, 01 Apr 2010)
New Revision: 5878
Added:
trunk/gta02-core/docs/ecn/ecn0044.txt
Modified:
trunk/gta02-core/docs/ecn/STATUS
Log:
ECN0044: Current rating of backlight LED inductor (L1704)
(Discussion of possible replacements.)
Modified: trunk/gta02-core/docs/ecn/STATUS
===================================================================
--- trunk/gta02-core/docs/ecn/STATUS 2010-04-01 20:51:11 UTC (rev 5877)
+++ trunk/gta02-core/docs/ecn/STATUS 2010-04-01 21:14:50 UTC (rev 5878)
@@ -43,6 +43,7 @@
0041 Discuss Test points and 0R resistors for camera interface
0042 Discuss Changing internal microphone to symmetrical configuration
0043 Discuss Assorted audio cleanup
+0044 Discuss Current rating of backlight LED inductor (L1704)
Open ECNs
@@ -64,3 +65,4 @@
0041 CPU
0042 AUDIO
0043 AUDIO
+0044 PMU
Added: trunk/gta02-core/docs/ecn/ecn0044.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0044.txt (rev 0)
+++ trunk/gta02-core/docs/ecn/ecn0044.txt 2010-04-01 21:14:50 UTC (rev
5878)
@@ -0,0 +1,36 @@
+Current rating of backlight LED inductor (L1704)
+
+
+The inductor of the boost converter for the backlight LED is currently
+rated at 800 mA. Such a part is hard to source in a 0805 package.
+
+The average current through the LED should only be 30 mA or less (LCM
+specification). Since this is a boost converter, the peak current
+through the inductor is considerably larger than the average output
+current. Unfortunately, the PMU manual does not indicate by which
+factor.
+
+The PMU had an over-current protection that can be configured to either
+500 mA or 1 A (default, resets in Standby). u-boot sets it to 500 mA
+while Qi and the kernel both seem to leave it unchanged.
+
+It thus seems that 500 mA are sufficient for normal operation.
+
+Another consideration is the power lost due to the inductor's resistance.
+Inductors with a high current rating also tend to have a low resistance.
+
+If a 800 mA and 0805 part is too difficult to source, we therefore have
+two choices:
+
+1) use a part with the same footprint but rated at a lower current, e.g.,
+ TAIYO-YUDEN LQM21PN2R2MC0D T=L L=2.2uH TOL=20% R=340mR I=600mA FP=0805
+
+2) increase the footprint to allow for a part rated at a higher current,
+ e.g.,
+ TAIYO-YUDEN BRL3225T2R2M T=L L=2.2uH TOL=20% R=78mR I=1.85A FP=1210
+
+Note that we already use the BRL3225T2R2M for L1701 and L4901, so option
+2) would be cost-neutral.
+
+
+Author: Werner Almesberger <wer...@openmoko.org>
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2010-04-01 23:34:20 +0200 (Thu, 01 Apr 2010)
New Revision: 5879
Modified:
trunk/gta02-core/docs/ecn/ecn0044.txt
trunk/gta02-core/pmu.sch
Log:
- pmu.sch: tentatively lowered current rating of L1704 to 600 mA to make the
BOM system pick up the Taiyo-Yuden LQM21PN2R2MC0D
- docs/ecn/ecn0044.txt: documented the above change
Modified: trunk/gta02-core/docs/ecn/ecn0044.txt
===================================================================
--- trunk/gta02-core/docs/ecn/ecn0044.txt 2010-04-01 21:14:50 UTC (rev
5878)
+++ trunk/gta02-core/docs/ecn/ecn0044.txt 2010-04-01 21:34:20 UTC (rev
5879)
@@ -34,3 +34,4 @@
Author: Werner Almesberger <wer...@openmoko.org>
+Commit: SVN 5879, tentatively lowered current rating to 600 mA
Modified: trunk/gta02-core/pmu.sch
===================================================================
--- trunk/gta02-core/pmu.sch 2010-04-01 21:14:50 UTC (rev 5878)
+++ trunk/gta02-core/pmu.sch 2010-04-01 21:34:20 UTC (rev 5879)
@@ -1,4 +1,4 @@
-EESchema Schematic File Version 2 date Thu Apr 1 16:31:54 2010
+EESchema Schematic File Version 2 date Thu Apr 1 18:26:00 2010
LIBS:power,device,conn,gta02-core,gta02-core-cache
EELAYER 24 0
EELAYER END
@@ -2098,7 +2098,7 @@
F 0 "L1704" V 11150 6400 50 0000 C CNN
F 1 "2u2" V 11150 6650 50 0000 C CNN
F 2 "0805" H 11200 6550 60 0001 C CNN
-F 4 "800mA" V 11150 6900 50 0000 C CNN "I"
+F 4 "600mA" V 11150 6900 50 0000 C CNN "I"
1 11200 6550
0 1 1 0
$EndComp
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2010-04-02 00:59:40 +0200 (Fri, 02 Apr 2010)
New Revision: 5880
Modified:
trunk/eda/boom/README
trunk/eda/boom/bom2part
Log:
- boom/bom2part: when matching characteristics, ignore fields whose value is an
empty string
- boom/README: added reminder for documenting min/max matches
Modified: trunk/eda/boom/README
===================================================================
--- trunk/eda/boom/README 2010-04-01 21:34:20 UTC (rev 5879)
+++ trunk/eda/boom/README 2010-04-01 22:59:40 UTC (rev 5880)
@@ -78,6 +78,7 @@
- .sub
- .chr
+- <rel><number><multiplier><unit> syntax
...
Modified: trunk/eda/boom/bom2part
===================================================================
--- trunk/eda/boom/bom2part 2010-04-01 21:34:20 UTC (rev 5879)
+++ trunk/eda/boom/bom2part 2010-04-01 22:59:40 UTC (rev 5880)
@@ -101,6 +101,7 @@
print STDERR "PART $c\n" if $debug;
for (keys %field) {
next if $_ eq "REF" || $_ eq "VAL" || $_ =~ /^F\d$/;
+ next if $field{$_} eq "";
print STDERR " $_=",$field{$_}," " if $debug;
if (!defined $chr{$c}{$_}) {
print STDERR "NO FIELD\n" if $debug;
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2010-04-02 01:05:43 +0200 (Fri, 02 Apr 2010)
New Revision: 5881
Modified:
trunk/gta02-core/bom/dk/digi-key.equ
trunk/gta02-core/bom/gta02-core.sub
trunk/gta02-core/bom/misc.chr
Log:
Substituted varistors (Karmax). Latest score:
SVN Rev -- No source -- -- Digi-Key -- -- Farnell --- --- Mouser ---
r5881 16 12 77 1328
- bom/misc.chr, bom/dk/digi-key.equ: added varistors
- bom/gta02-core.sub: make varistor capacitance an upper bound instead of an
exact match
- bom/gta02-core.sub: added hack to work around inconsistencies among vendors
when specifying varistor Vac
Modified: trunk/gta02-core/bom/dk/digi-key.equ
===================================================================
--- trunk/gta02-core/bom/dk/digi-key.equ 2010-04-01 22:59:40 UTC (rev
5880)
+++ trunk/gta02-core/bom/dk/digi-key.equ 2010-04-01 23:05:43 UTC (rev
5881)
@@ -115,3 +115,6 @@
DIGI-KEY 728-1041-1-ND SEIKO HB414-IV01E
DIGI-KEY 495-3914-1-ND EPCOS B7840
+DIGI-KEY P14129CT-ND PANASONIC EZJ-P0V080KA
+DIGI-KEY 283-2991-1-ND COOPER-BUSSMANN MLVA04V09C130
+DIGI-KEY 283-3002-6-ND COOPER-BUSSMANN MLVB04V09C005
Modified: trunk/gta02-core/bom/gta02-core.sub
===================================================================
--- trunk/gta02-core/bom/gta02-core.sub 2010-04-01 22:59:40 UTC (rev 5880)
+++ trunk/gta02-core/bom/gta02-core.sub 2010-04-01 23:05:43 UTC (rev 5881)
@@ -39,9 +39,23 @@
-> T=D
VAL=*F { # heuristic to detect TVS
-> M=TVS
- VAL=*F -> C=$VAL
+ VAL=*F -> C=<=$VAL
FN=(*V)ac -> Vac=$FN:1
FN=(*V)dc -> Vdc=$FN:1
+
+ #
+ # Hack: some companies specify the class of varistors with Vdc = 9 V
+ # as Vac = 6.5 V while others use Vac = 7 V. Sometimes, Vac is even
+ # omitted entirely.
+ #
+ # Here, we work around the issue that Karmax use Vac = 6.5 V,
+ # Cooper/Bussmann use Vac = 7V if at all, and out schematics specify
+ # Vac = 6.5 V.
+ #
+ Vac=6.5V {
+ -> Vac=
+ -> Vdc=9V
+ }
}
}
Modified: trunk/gta02-core/bom/misc.chr
===================================================================
--- trunk/gta02-core/bom/misc.chr 2010-04-01 22:59:40 UTC (rev 5880)
+++ trunk/gta02-core/bom/misc.chr 2010-04-01 23:05:43 UTC (rev 5881)
@@ -139,3 +139,18 @@
TAIYO-YUDEN LQM21PN2R2MC0D T=L L=2.2uH TOL=20% R=340mR I=600mA FP=0805 RF=50MHz
TAIYO-YUDEN BRL3225T2R2M T=L L=2.2uH TOL=20% R=78mR I=1.85A FP=1210
RF=150MHz
TAIYO-YUDEN CB2012T4R7M T=L L=4.7uH TOL=20% R=520mR I=580mA FP=0805
RF=45MHz
+
+# Panasonic
+
+#
http://industrial.panasonic.com/www-cgi/jvcr13pz.cgi?E+PZ+3+AWC0002+EZJP0V080KA+7+WW
+# http://industrial.panasonic.com/www-data/pdf/AWC0000/AWC0000CE2.pdf
+
+PANASONIC EZJ-P0V080KA T=D M=TVS Vac=4V Vdc=5.6V C=330pF FP=0402
+
+# Cooper/Bussmann
+
+# http://www.cooperbussmann.com/pdf/901ba89f-aeeb-4b21-831f-5de0f9f1fa43.pdf
+# http://www.cooperbussmann.com/pdf/367c3f10-bb33-4c82-b92a-15ee16db26f7.pdf
+
+COOPER-BUSSMANN MLVA04V09C130 T=D M=TVS Vdc=9V Vac=7V C=130pF FP=0402
+COOPER-BUSSMANN MLVB04V09C005 T=D M=TVS Vdc=9V C=5pF FP=0402
--- End Message ---
--- Begin Message ---
Author: werner
Date: 2010-04-02 08:35:18 +0200 (Fri, 02 Apr 2010)
New Revision: 5882
Added:
trunk/gta02-core/bom/research/
trunk/gta02-core/bom/research/STATUS
trunk/gta02-core/bom/research/con1701
trunk/gta02-core/bom/research/jk4401
trunk/gta02-core/bom/research/lcm
trunk/gta02-core/bom/research/led1501
trunk/gta02-core/bom/research/led1502
trunk/gta02-core/bom/research/u1501
trunk/gta02-core/bom/research/u1701
trunk/gta02-core/bom/research/u1704
trunk/gta02-core/bom/research/u4902
trunk/gta02-core/bom/research/u4904
trunk/gta02-core/bom/research/u4905
trunk/gta02-core/bom/research/u7601
trunk/gta02-core/bom/research/u7604
trunk/gta02-core/bom/research/u7608
trunk/gta02-core/bom/research/u7609
trunk/gta02-core/bom/research/u8001
Log:
Status and details of component research.
Added: trunk/gta02-core/bom/research/STATUS
===================================================================
--- trunk/gta02-core/bom/research/STATUS (rev 0)
+++ trunk/gta02-core/bom/research/STATUS 2010-04-02 06:35:18 UTC (rev
5882)
@@ -0,0 +1,42 @@
+CRITICAL:
+
+Part File Status
+---------------------- -------------- ---------------------------------------
+1SS400
+A425-206162-001
+AAT1275IRN-5.0-T1 u4904 not researched yet
+ATR0610-PQQ u7601 borderline availability
+ATR0635-7KQY u7608 borderline av., expensive or long lead
+BF2520-B2R4CAB/LF
+BTP-03JA4G con1701 no distrib., incompatible subst.
+DFBM-CS320-FI1R
+DTC123JETL
+FA2012-KR40PAA
+HT-110USD led1502 large minimum order, subst. likely
+HT-210UD/NB led1501 long lead time, incompatible subst.
+IT3205BE
+JAR02-062101 jk4401 manuf. may be dead, inc. subst. likely
+KLB0603K601SA
+PCF50633HN/04/N3,5 u1701 large minimum order
+PPR06-023104
+R3113D241A-TR-F u7604 not researched yet
+RT9013-12PB
+RT9711BPB u4905 not researched yet
+SC32442B54 u1501 not found yet, brokers list it
+SN74AUP1G00DCKR u4902 borderline availability,
incomp. subst.
+TAS4025A-12MHz
+TD028TTEC1 lcm not found yet, brokers list it
+WM3236AQ u8001 not found yet
+
+OPTIMIZATION:
+
+Part File Status
+---------------------- -------------- ---------------------------------------
+NTGD1100L u1704 found, but may want more popular part
+SI1040X-T1-E3 u7609 found, but may want more popular part
+
+
+"borderline availability" = only sources with lead time, although short. May
+ become harder to source.
+"incompatible substitute" = differs in footprint, pin numbering, or physical
+ shape, but fulfills same function.
Added: trunk/gta02-core/bom/research/con1701
===================================================================
--- trunk/gta02-core/bom/research/con1701 (rev 0)
+++ trunk/gta02-core/bom/research/con1701 2010-04-02 06:35:18 UTC (rev
5882)
@@ -0,0 +1,10 @@
+CON1701: Octek BTP-03JA4G
+
+- part not found at the usual distributors
+
+- AVX MOBO 9155 series may have crude but sufficiently similar
+ substitute:
+
+ Catalog: http://www.avx.com/docs/catalogs/9155-5.pdf
+ AVX part number: 009155003301006
+ Digi-Key: 478-4687-1-ND
Added: trunk/gta02-core/bom/research/jk4401
===================================================================
--- trunk/gta02-core/bom/research/jk4401 (rev 0)
+++ trunk/gta02-core/bom/research/jk4401 2010-04-02 06:35:18 UTC (rev
5882)
@@ -0,0 +1,16 @@
+JK4401: Nuconn JAR02-062101
+
+- we have no data sheet of the original part
+- manufacturer is probably Nuconn Technology Corp.
+- no Web presence found. Found trace of company from 2005:
+ http://blog.xuite.net/vguan/blog/4666845
+
+- likely alternatives, with different footprint:
+
+ - CUI SJ1-42516-SMT
+ http://www.cui.com/GetSpecForDigiKey.aspx?MFGNum=SJ1-42516-SMT
+ http://www.cui.com/getpdf.aspx?filename=SJ1-42516-SMT.pdf
+
+ - CUI SJ1-42536-SMT
+ http://www.cui.com/GetSpecForDigiKey.aspx?MFGNum=SJ1-42516-SMT
+ http://www.cui.com/getpdf.aspx?filename=SJ1-42516-SMT.pdf
Added: trunk/gta02-core/bom/research/lcm
===================================================================
--- trunk/gta02-core/bom/research/lcm (rev 0)
+++ trunk/gta02-core/bom/research/lcm 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,21 @@
+LCM: Toppoly TD028TTEC1
+
+Company history:
+
+- once upon a time, there were Royal Philips' Mobile Display Systems (MDS),
+ Hong Kong, and Toppoly in Taiwan
+
+- MDS merged in 2006 with Toppoly to become TPO Displays Corporation
+
+ http://investors.solarfun.com.cn/releasedetail.cfm?releaseid=284542
+
http://www.marketwire.com/press-release/Display-Industry-Veteran-Dr-I-Wei-Wu-Joins-Leadis-Technologys-Board-of-Directors-NASDAQ-LDIS-828671.htm
+
+- In 2010, TPO Displays Corporation merfed with Chi Mei Optoelectronics
+ and became Chimei Innolux Corporation
+
+
http://www.chimei-innolux.com/opencms/cmo/modules/news/MCNews/mcnews_0156.html?__locale=en
+
+They may still trade as Toppoly or TPO.
+
+None of the 2.8" products listed at http://www.chimei-innolux.com/
+has characteristics similar to our LCM.
Added: trunk/gta02-core/bom/research/led1501
===================================================================
--- trunk/gta02-core/bom/research/led1501 (rev 0)
+++ trunk/gta02-core/bom/research/led1501 2010-04-02 06:35:18 UTC (rev
5882)
@@ -0,0 +1,15 @@
+LED1501: Harvatek HT-210UD/NB
+
+- Arrow NAC lists the HT-210UD/NB but has no stock
+
+ Catalog number: HT-210UD/NB
+ Price: USD 0.24
+ Minimum order: 1
+ Lead time: 12 weeks
+
+- Dialight MicroLED 598 series, 1208 package
+
http://www.dialight.com/Assets/Brochures_And_Catalogs/Indication/MDEI5981208BI.pdf
+
+ - identical form factor
+ - different colors
+ - different footprint
Added: trunk/gta02-core/bom/research/led1502
===================================================================
--- trunk/gta02-core/bom/research/led1502 (rev 0)
+++ trunk/gta02-core/bom/research/led1502 2010-04-02 06:35:18 UTC (rev
5882)
@@ -0,0 +1,10 @@
+LED1502: Harvatek HT-110USD
+
+- Arrow NAC has the HT-110USD but with large minimum order
+
+ Catalog number: HT-110USD, HT-110USD-4939
+ Price: UDS 0.062, USD 0.054
+ Minimum order: 3000, 3000
+ Lead time: call, 18'000 stock
+
+- Probably similar alternative sources as HT-210 (file ./led1501)
Added: trunk/gta02-core/bom/research/u1501
===================================================================
--- trunk/gta02-core/bom/research/u1501 (rev 0)
+++ trunk/gta02-core/bom/research/u1501 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,6 @@
+U1501: Samsung SC32442B54
+
+http://www.samsung.com/global/business/semiconductor/productInfo.do?fmly_id=229&partnum=SC32442&xFmly_id=229
+
+Part has not been found yet. Many brokers list it, but without complete
+information.
Added: trunk/gta02-core/bom/research/u1701
===================================================================
--- trunk/gta02-core/bom/research/u1701 (rev 0)
+++ trunk/gta02-core/bom/research/u1701 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,7 @@
+U1701: NXP PCF50633HN/04/N3,5
+
+Listed at Arrow NAC ar 3.90, but without stock and minimum order of 1000
+units.
+
+The chip is now owned by ST Ericsson:
+http://www.stericsson.com/sales_marketing_resources/PCF50633FL_1.pdf
Added: trunk/gta02-core/bom/research/u1704
===================================================================
--- trunk/gta02-core/bom/research/u1704 (rev 0)
+++ trunk/gta02-core/bom/research/u1704 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,12 @@
+U1704: ON Semiconductor NTGD1100L
+
+Like the SI1040, we may be able to find an equivalent part that's
+available "everywhere".
+
+Distributor Stock Lead time Price Minimum order
+---------------------- ------ -------------- -------------- -------------
+Avnet 1250 - USD 0.34 1
+Digi-Key - May 7 USD 0.73 1
+Farnell - 2-3 days UKP 0.37 1
+Mouser - May 20 USD 0.47 1
+Newark 373 - USD 0.39 1
Added: trunk/gta02-core/bom/research/u4902
===================================================================
--- trunk/gta02-core/bom/research/u4902 (rev 0)
+++ trunk/gta02-core/bom/research/u4902 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,14 @@
+U4902: TI SN74AUP1G00DCKR
+
+- part is listed at major distributors but generally not stocked:
+
+ - Digi-Key has part but with insufficient stock.
+ Part is Non-Stock, with 1 week lead time.
+
+ - Arrow lists part with 8 weeks lead time and minimum order 3000.
+
+ - Newark lists part with 90 days lead time and minimum order 6000.
+
+- alternatively, we could change to the YZP (BGA) package, which has
+ better availability and is very similar to NXP's 6-XSON for the same
+ chip.
Added: trunk/gta02-core/bom/research/u4904
===================================================================
--- trunk/gta02-core/bom/research/u4904 (rev 0)
+++ trunk/gta02-core/bom/research/u4904 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,5 @@
+U4904: Analogic Tech AAT1275IRN-5.0-T1
+
+Research needed. It's a US company yet the part is unknown in the west :-(
+
+AAT1275IRN-5.0-T1 LNR-IC USB POWER SWITCH AAT1275IRN-5.0-T1 2.7-5.0V 50
Added: trunk/gta02-core/bom/research/u4905
===================================================================
--- trunk/gta02-core/bom/research/u4905 (rev 0)
+++ trunk/gta02-core/bom/research/u4905 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,5 @@
+U4905: Richtek RT9711BPB
+
+research needed.
+
+RT9711BPB LNR-IC POWER SWITCH RT9711BPB 1.5A SOT-23-5 5PIN RICH
Added: trunk/gta02-core/bom/research/u7601
===================================================================
--- trunk/gta02-core/bom/research/u7601 (rev 0)
+++ trunk/gta02-core/bom/research/u7601 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,11 @@
+U7601: Atmel ATR0610-PQQ
+
+Distributor Stock Lead time Price Minimum order
+---------------------- ------ -------------- -------------- -------------
+Arrow - 20 weeks call
+Avnet - 21 weeks USD 0.69 1
+Digi-Key - not orderable USD 0.61 3000
+Mouser no part number, no price, availability "call"
+onlinecomponents.com - 9 weeks USD 1.36 1
+
+http://www.onlinecomponents.com/buy/ATMEL/ATR0610-PQQ/
Added: trunk/gta02-core/bom/research/u7604
===================================================================
--- trunk/gta02-core/bom/research/u7604 (rev 0)
+++ trunk/gta02-core/bom/research/u7604 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,5 @@
+U7604: Ricoh R3113D241A-TR-F
+
+research needed.
+
+R3113D241A-TR-F LNR-IC V-DETECTOR R3113D241A-TR-F 2.4V SON1408-3 3PIN
Added: trunk/gta02-core/bom/research/u7608
===================================================================
--- trunk/gta02-core/bom/research/u7608 (rev 0)
+++ trunk/gta02-core/bom/research/u7608 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,12 @@
+U7608: Atmel ATR0635-7KQY
+
+Note: Volume price should be around USD 7.
+
+Distributor Stock Lead time Price Minimum order
+---------------------- ------ -------------- -------------- -------------
+Arrow - 20 weeks USD 14.78 3000
+Avnet - 21 weeks USD 15.23 1
+Mouser no part number, no price, availability "call"
+onlinecomponents.com - 9 weeks USD 25.74 1
+
+http://www.onlinecomponents.com/buy/ATMEL/ATR0635-7KQY-88/
Added: trunk/gta02-core/bom/research/u7609
===================================================================
--- trunk/gta02-core/bom/research/u7609 (rev 0)
+++ trunk/gta02-core/bom/research/u7609 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,16 @@
+U7609, U7610: Vishay/Siliconix SI1040X
+
+The part can be obtained, but since this should be a very common type
+of component, there may be a replacement that is stocked by all major
+distributors.
+
+
+Distributor Stock Lead time Price Minimum order
+---------------------- ------ -------------- -------------- -------------
+Arrow - 4 weeks 0.50 3000
+Digi-Key - call call 1
+Digi-Key - call 0.29 3000
+element14 2800 - 0.389 1
+Mouser 2645 - 0.75 1
+Newark 2800 - 0.389 1
+Quest 54000 - 1.35 1
Added: trunk/gta02-core/bom/research/u8001
===================================================================
--- trunk/gta02-core/bom/research/u8001 (rev 0)
+++ trunk/gta02-core/bom/research/u8001 2010-04-02 06:35:18 UTC (rev 5882)
@@ -0,0 +1,10 @@
+U8001: Aiconn WM3236AQ
+
+http://www.aiconn.com.tw/newsite/product_001.htm
+
+Aiconn [is] a subsidiary of [...] Accton Technology
+
+They say the WS178Q is a pin-compatible enhancement of the WM3236AQ, and
+it has indeed exactly the same size. But the internals and its software
+interfaces may still be different. E.g., it almost certainly contains an
+AR6002.
--- End Message ---
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