From: Bdale Garbee <bdale@gag.com>
Date: Wed, 13 Jun 2012 16:45:21 +0000 (-0600)
Subject: move Vlcd from the analog rail to 3.3V to minimize analog rail noise
X-Git-Tag: fab-v0.2~3
X-Git-Url: https://git.gag.com/?p=hw%2Fmegadongle;a=commitdiff_plain;h=24532252f998845a30956f54bde1c9097abd2ebc

move Vlcd from the analog rail to 3.3V to minimize analog rail noise
---

diff --git a/megadongle.pcb b/megadongle.pcb
index 7a91dc7..e31d409 100644
--- a/megadongle.pcb
+++ b/megadongle.pcb
@@ -6,7 +6,7 @@ FileVersion[20070407]
 PCB["MegaDongle" 112500 112500]
 
 Grid[100.0 0 0 0]
-Cursor[200 62000 0.000000]
+Cursor[1700 8800 0.000000]
 PolyArea[200000000.000000]
 Thermal[0.500000]
 DRC[600 1000 600 500 1500 650]
@@ -1698,7 +1698,6 @@ Layer(1 "top")
 	Line[106400 39600 100102 39600 1000 2000 "clearline"]
 	Line[100102 39600 99013 38511 1000 2000 "clearline"]
 	Line[70122 43400 71148 43400 1000 2000 "clearline"]
-	Line[70144 47200 71148 47200 1000 2000 "clearline"]
 	Line[71148 47200 73048 45300 1000 2000 "clearline"]
 	Line[74748 43400 75248 43400 1000 2000 "clearline"]
 	Line[74748 43400 72948 45200 1000 2000 "clearline"]
@@ -1837,6 +1836,7 @@ Layer(1 "top")
 	Line[73400 87700 70000 91100 1000 2000 "clearline"]
 	Line[80674 51500 80674 49426 1000 2000 "clearline"]
 	Line[80674 49426 78448 47200 1000 2000 "clearline"]
+	Line[70144 47200 71148 47200 1000 2000 "clearline"]
 	Polygon("")
 	(
 		[62300 16000] [87100 16000] [87100 1000] [62300 1000] 
@@ -1973,12 +1973,6 @@ Layer(4 "bottom")
 	Line[28400 29500 28400 45500 1000 2000 "clearline"]
 	Line[71363 36062 75038 36062 1000 2000 "clearline"]
 	Line[75038 36062 75700 35400 1000 2000 "clearline"]
-	Line[79236 43936 79236 42636 1000 2000 "clearline"]
-	Line[79236 42636 77800 41200 1000 2000 "clearline"]
-	Line[77800 41200 71700 41200 1000 2000 "clearline"]
-	Line[71700 41200 69500 43400 1000 2000 "clearline"]
-	Line[69500 43400 69500 47800 1000 2000 "clearline"]
-	Line[69500 47800 72900 51200 1000 2000 "clearline"]
 	Line[34100 71494 38694 71494 1000 2000 "clearline"]
 	Line[38694 71494 43300 76100 1000 2000 "clearline"]
 	Line[43300 76100 58800 76100 1000 2000 "clearline"]
@@ -2049,6 +2043,8 @@ Layer(4 "bottom")
 	Line[38300 41000 36200 38900 1000 2000 "clearline"]
 	Line[33962 47873 30773 47873 1000 2000 "clearline"]
 	Line[30773 47873 28400 45500 1000 2000 "clearline"]
+	Line[79236 43936 74212 43936 1000 2000 "clearline"]
+	Line[74212 43936 72948 45200 1000 2000 "clearline"]
 	Polygon("clearpoly")
 	(
 		[13700 16000] [87100 16000] [87100 1000] [13700 1000] 
@@ -2115,6 +2111,7 @@ NetList()
 		Connect("U6-25")
 		Connect("U6-27")
 		Connect("U6-28")
+		Connect("U7-1")
 		Connect("U7-19")
 		Connect("U7-32")
 		Connect("U7-48")
@@ -2416,7 +2413,6 @@ NetList()
 		Connect("C601-1")
 		Connect("C602-1")
 		Connect("L600-2")
-		Connect("U7-1")
 		Connect("U7-13")
 	)
 )
diff --git a/megadongle.sch b/megadongle.sch
index 61f5a38..71caa33 100644
--- a/megadongle.sch
+++ b/megadongle.sch
@@ -1,25 +1,25 @@
 v 20110115 2
 C 40000 40000 0 0 0 EMBEDDEDtitle-D-bdale.sym
 [
-B 40000 40000 34000 22000 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
-L 66400 41400 74000 41400 15 0 0 0 -1 -1
+T 56500 41800 5 10 0 0 0 0 1
+graphical=1
+T 66500 40400 15 8 1 0 0 0 1
+FILE:
+T 71500 40400 15 8 1 0 0 0 1
+REVISION:
+T 69400 40400 15 8 1 0 0 0 1
+PAGE
+T 70200 40400 15 8 1 0 0 0 1
+OF
+B 66400 40000 7600 2700 15 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+L 66400 40600 74000 40600 15 0 0 0 -1 -1
+T 66500 40100 15 10 1 0 0 0 1
+Project URL:
 T 66900 40800 9 10 1 0 0 0 2
                 Copyright 2012 by Bdale Garbee <bdale@gag.com>
 Licensed under the TAPR Open Hardware License, http://www.tapr.org/OHL
-T 66500 40100 15 10 1 0 0 0 1
-Project URL:
-L 66400 40600 74000 40600 15 0 0 0 -1 -1
-B 66400 40000 7600 2700 15 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
-T 70200 40400 15 8 1 0 0 0 1
-OF
-T 69400 40400 15 8 1 0 0 0 1
-PAGE
-T 71500 40400 15 8 1 0 0 0 1
-REVISION:
-T 66500 40400 15 8 1 0 0 0 1
-FILE:
-T 56500 41800 5 10 0 0 0 0 1
-graphical=1
+L 66400 41400 74000 41400 15 0 0 0 -1 -1
+B 40000 40000 34000 22000 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
 ]
 T 68700 41900 9 30 1 0 0 0 1
 MegaDongle
@@ -39,6 +39,21 @@ T 13300 -8600 8 10 0 1 0 0 1
 vendor_part_number=MCP9700-E/TO-ND
 C 72200 46200 1 0 0 EMBEDDEDhole_plated.sym
 [
+V 72400 46400 200 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+T 72300 47900 5 10 0 0 0 0 1
+device=HOLE_PLATED
+T 72300 47100 5 10 0 0 0 0 1
+nobom=1
+T 72300 46700 8 10 0 1 0 0 1
+refdes=H?
+T 72300 47700 5 10 0 0 0 0 1
+description=hole, plated
+T 72300 47500 5 10 0 0 0 0 1
+author=Kai-Martin Knaak
+T 72300 47300 5 10 0 0 0 0 1
+license=GPL2
+T 72300 46700 8 10 0 1 0 0 1
+refdes=hole_plated
 P 72800 46400 72600 46400 1 0 0
 {
 T 72650 46450 5 10 0 1 0 0 1
@@ -48,21 +63,6 @@ pinnumber=1
 T 72600 46200 5 10 0 1 0 0 1
 pintype=pas
 }
-T 72300 46700 8 10 0 1 0 0 1
-refdes=hole_plated
-T 72300 47300 5 10 0 0 0 0 1
-license=GPL2
-T 72300 47500 5 10 0 0 0 0 1
-author=Kai-Martin Knaak
-T 72300 47700 5 10 0 0 0 0 1
-description=hole, plated
-T 72300 46700 8 10 0 1 0 0 1
-refdes=H?
-T 72300 47100 5 10 0 0 0 0 1
-nobom=1
-T 72300 47900 5 10 0 0 0 0 1
-device=HOLE_PLATED
-V 72400 46400 200 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
 ]
 {
 T 72300 48000 5 10 0 0 0 0 1
@@ -83,6 +83,21 @@ N 72800 46400 73400 46400 4
 N 73400 44700 73400 46400 4
 C 72200 45200 1 0 0 EMBEDDEDhole_plated.sym
 [
+V 72400 45400 200 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+T 72300 46900 5 10 0 0 0 0 1
+device=HOLE_PLATED
+T 72300 46100 5 10 0 0 0 0 1
+nobom=1
+T 72300 45700 8 10 0 1 0 0 1
+refdes=H?
+T 72300 46700 5 10 0 0 0 0 1
+description=hole, plated
+T 72300 46500 5 10 0 0 0 0 1
+author=Kai-Martin Knaak
+T 72300 46300 5 10 0 0 0 0 1
+license=GPL2
+T 72300 45700 8 10 0 1 0 0 1
+refdes=hole_plated
 P 72800 45400 72600 45400 1 0 0
 {
 T 72650 45450 5 10 0 1 0 0 1
@@ -92,21 +107,6 @@ pinnumber=1
 T 72600 45200 5 10 0 1 0 0 1
 pintype=pas
 }
-T 72300 45700 8 10 0 1 0 0 1
-refdes=hole_plated
-T 72300 46300 5 10 0 0 0 0 1
-license=GPL2
-T 72300 46500 5 10 0 0 0 0 1
-author=Kai-Martin Knaak
-T 72300 46700 5 10 0 0 0 0 1
-description=hole, plated
-T 72300 45700 8 10 0 1 0 0 1
-refdes=H?
-T 72300 46100 5 10 0 0 0 0 1
-nobom=1
-T 72300 46900 5 10 0 0 0 0 1
-device=HOLE_PLATED
-V 72400 45400 200 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
 ]
 {
 T 72300 47000 5 10 0 0 0 0 1
@@ -143,51 +143,37 @@ N 66400 45500 64700 45500 4
 N 66100 48300 66400 48300 4
 C 66400 45400 1 0 0 EMBEDDEDconn-8.sym
 [
-T 66755 48495 8 10 0 1 0 0 1
-refdes=J?
-B 66700 45400 400 3000 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
-P 66400 45500 66700 45500 1 0 0
-{
-T 66400 45500 5 10 0 0 0 0 1
-pintype=unknown
-T 66755 45495 5 10 0 1 0 0 1
-pinlabel=unknown
-T 66605 45545 5 10 1 1 0 6 1
-pinnumber=8
-T 66400 45500 5 10 0 0 0 0 1
-pinseq=0
-}
-P 66400 45900 66700 45900 1 0 0
+P 66400 48300 66700 48300 1 0 0
 {
-T 66400 45900 5 10 0 0 0 0 1
+T 66400 48300 5 10 0 0 0 0 1
 pintype=unknown
-T 66755 45895 5 10 0 1 0 0 1
+T 66755 48295 5 10 0 1 0 0 1
 pinlabel=unknown
-T 66605 45945 5 10 1 1 0 6 1
-pinnumber=7
-T 66400 45900 5 10 0 0 0 0 1
+T 66605 48345 5 10 1 1 0 6 1
+pinnumber=1
+T 66400 48300 5 10 0 0 0 0 1
 pinseq=0
 }
-P 66400 46300 66700 46300 1 0 0
+P 66400 47900 66700 47900 1 0 0
 {
-T 66400 46300 5 10 0 0 0 0 1
+T 66400 47900 5 10 0 0 0 0 1
 pintype=unknown
-T 66755 46295 5 10 0 1 0 0 1
+T 66755 47895 5 10 0 1 0 0 1
 pinlabel=unknown
-T 66605 46345 5 10 1 1 0 6 1
-pinnumber=6
-T 66400 46300 5 10 0 0 0 0 1
+T 66605 47945 5 10 1 1 0 6 1
+pinnumber=2
+T 66400 47900 5 10 0 0 0 0 1
 pinseq=0
 }
-P 66400 46700 66700 46700 1 0 0
+P 66400 47500 66700 47500 1 0 0
 {
-T 66400 46700 5 10 0 0 0 0 1
+T 66400 47500 5 10 0 0 0 0 1
 pintype=unknown
-T 66755 46695 5 10 0 1 0 0 1
+T 66755 47495 5 10 0 1 0 0 1
 pinlabel=unknown
-T 66605 46745 5 10 1 1 0 6 1
-pinnumber=5
-T 66400 46700 5 10 0 0 0 0 1
+T 66605 47545 5 10 1 1 0 6 1
+pinnumber=3
+T 66400 47500 5 10 0 0 0 0 1
 pinseq=0
 }
 P 66400 47100 66700 47100 1 0 0
@@ -201,39 +187,53 @@ pinnumber=4
 T 66400 47100 5 10 0 0 0 0 1
 pinseq=0
 }
-P 66400 47500 66700 47500 1 0 0
+P 66400 46700 66700 46700 1 0 0
 {
-T 66400 47500 5 10 0 0 0 0 1
+T 66400 46700 5 10 0 0 0 0 1
 pintype=unknown
-T 66755 47495 5 10 0 1 0 0 1
+T 66755 46695 5 10 0 1 0 0 1
 pinlabel=unknown
-T 66605 47545 5 10 1 1 0 6 1
-pinnumber=3
-T 66400 47500 5 10 0 0 0 0 1
+T 66605 46745 5 10 1 1 0 6 1
+pinnumber=5
+T 66400 46700 5 10 0 0 0 0 1
 pinseq=0
 }
-P 66400 47900 66700 47900 1 0 0
+P 66400 46300 66700 46300 1 0 0
 {
-T 66400 47900 5 10 0 0 0 0 1
+T 66400 46300 5 10 0 0 0 0 1
 pintype=unknown
-T 66755 47895 5 10 0 1 0 0 1
+T 66755 46295 5 10 0 1 0 0 1
 pinlabel=unknown
-T 66605 47945 5 10 1 1 0 6 1
-pinnumber=2
-T 66400 47900 5 10 0 0 0 0 1
+T 66605 46345 5 10 1 1 0 6 1
+pinnumber=6
+T 66400 46300 5 10 0 0 0 0 1
 pinseq=0
 }
-P 66400 48300 66700 48300 1 0 0
+P 66400 45900 66700 45900 1 0 0
 {
-T 66400 48300 5 10 0 0 0 0 1
+T 66400 45900 5 10 0 0 0 0 1
 pintype=unknown
-T 66755 48295 5 10 0 1 0 0 1
+T 66755 45895 5 10 0 1 0 0 1
 pinlabel=unknown
-T 66605 48345 5 10 1 1 0 6 1
-pinnumber=1
-T 66400 48300 5 10 0 0 0 0 1
+T 66605 45945 5 10 1 1 0 6 1
+pinnumber=7
+T 66400 45900 5 10 0 0 0 0 1
+pinseq=0
+}
+P 66400 45500 66700 45500 1 0 0
+{
+T 66400 45500 5 10 0 0 0 0 1
+pintype=unknown
+T 66755 45495 5 10 0 1 0 0 1
+pinlabel=unknown
+T 66605 45545 5 10 1 1 0 6 1
+pinnumber=8
+T 66400 45500 5 10 0 0 0 0 1
 pinseq=0
 }
+B 66700 45400 400 3000 3 0 0 0 -1 -1 0 -1 -1 -1 -1 -1
+T 66755 48495 8 10 0 1 0 0 1
+refdes=J?
 ]
 {
 T 66755 48495 5 10 1 1 0 0 1
@@ -1312,7 +1312,7 @@ T -36000 -59700 8 10 0 1 0 0 1
 vendor_part_number=MCP9700-E/TO-ND
 C 49300 61500 1 0 0 3.3V-plus.sym
 N 49500 61000 49500 61500 4
-N 49500 61000 50700 61000 4
+N 49500 61000 51500 61000 4
 C 50600 40100 1 0 0 gnd.sym
 N 49700 40600 49700 40500 4
 N 49700 40500 51700 40500 4
@@ -1535,7 +1535,7 @@ T 51000 61600 5 10 1 1 0 0 1
 netname=vdda
 }
 N 51900 61500 51900 61000 4
-N 51500 61000 52100 61000 4
+N 51900 61000 52100 61000 4
 C 53200 60700 1 0 0 gnd.sym
 N 53300 61500 53300 61000 4
 N 53300 61000 53000 61000 4