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authorWerner Almesberger <werner@almesberger.net>2016-10-21 21:01:59 -0300
committerGenerated from internal repo <nobody@neo900.org>2016-10-21 21:01:59 -0300
commit2a548e37cad12b49fd67a90f8cf962d4b1293eee (patch)
tree402f6102d9241d54dc0681e6f5815838e48d054c
parente31dffe89b492a8b4765bdb43c16bed77e2e8af5 (diff)
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neo900_SS_29.sch: BB.VIO_1V8 is not intended to drive significant circuits
... just level shifters. So we bring back the LDO.
-rw-r--r--hw/docdb.in2
-rw-r--r--hw/neo900_SS_29.sch54
2 files changed, 45 insertions, 11 deletions
diff --git a/hw/docdb.in b/hw/docdb.in
index 9536f9b..b402231 100644
--- a/hw/docdb.in
+++ b/hw/docdb.in
@@ -359,7 +359,7 @@ DS http://www.molex.com/pdm_docs/sd/5000244071_sd.pdf
#----- Sheet 29 (TBD) ---------------------------------------------------------
-U*_TPS73601*
+U*_TPS736*
DS http://www.ti.com/lit/ds/symlink/tps736.pdf
# DBV
FP 34
diff --git a/hw/neo900_SS_29.sch b/hw/neo900_SS_29.sch
index 219a9ca..94a2c75 100644
--- a/hw/neo900_SS_29.sch
+++ b/hw/neo900_SS_29.sch
@@ -55,12 +55,12 @@ Text Notes 7400 3800 0 70 ~ 0
$Comp
L GND-3 #U$2901
U 1 1 578DA03C
-P 8900 4900
-F 0 "#U$2901" H 8780 4801 70 0001 L BNN
-F 1 "GND3" H 8780 4801 70 0001 L BNN
-F 2 "" H 8900 4900 60 0001 C CNN
-F 3 "" H 8900 4900 60 0001 C CNN
- 1 8900 4900
+P 8900 5000
+F 0 "#U$2901" H 8780 4901 70 0001 L BNN
+F 1 "GND3" H 8780 4901 70 0001 L BNN
+F 2 "" H 8900 5000 60 0001 C CNN
+F 3 "" H 8900 5000 60 0001 C CNN
+ 1 8900 5000
1 0 0 -1
$EndComp
$Comp
@@ -77,10 +77,10 @@ $EndComp
Wire Wire Line
9500 4300 10050 4300
Wire Wire Line
- 8100 4300 8300 4300
+ 7800 4300 8300 4300
Wire Wire Line
8300 4500 8200 4500
-Text GLabel 8100 4300 0 60 Input ~ 0
+Text GLabel 7800 4300 0 60 Input ~ 0
VSYS_UPPER
Text GLabel 10050 4300 2 60 Output ~ 0
2V7_UPPER
@@ -135,7 +135,7 @@ Wire Wire Line
Connection ~ 9800 4900
Wire Wire Line
9800 5400 9800 5500
-Text GLabel 8350 6300 2 60 Output ~ 0
+Text GLabel 10050 6100 2 60 Output ~ 0
1V8_UPPER
Text GLabel 8000 6300 0 60 Input ~ 0
BB_1V8
@@ -144,6 +144,40 @@ Wire Wire Line
Wire Wire Line
8200 4500 8200 6300
Connection ~ 8200 6300
-Text Notes 8100 5650 2 120 ~ 24
+Text Notes 7200 6400 2 120 ~ 24
TODO: use REGEN ?
+$Comp
+L TPS73630DBV U2902
+U 1 1 580ACE55
+P 8950 6200
+F 0 "U2902" H 8801 6450 50 0000 L BNN
+F 1 "TPS73618DBV" H 8989 5930 50 0000 L BNN
+F 2 "neo900-legacy:SOT23-5" H 8940 5990 65 0001 L TNN
+F 3 "" H 8950 6200 60 0001 C CNN
+ 1 8950 6200
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 8350 6100 8000 6100
+Wire Wire Line
+ 8000 6100 8000 4300
+Connection ~ 8000 4300
+NoConn ~ 9550 6300
+Wire Wire Line
+ 9550 6100 10050 6100
+$Comp
+L GND-3 #U$2902
+U 1 1 580ACFBE
+P 8950 6800
+F 0 "#U$2902" H 8830 6701 70 0001 L BNN
+F 1 "GND3" H 8830 6701 70 0001 L BNN
+F 2 "" H 8950 6800 60 0001 C CNN
+F 3 "" H 8950 6800 60 0001 C CNN
+ 1 8950 6800
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 8900 4800 8900 4900
+Wire Wire Line
+ 8950 6600 8950 6700
$EndSCHEMATC