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schematics: additional ADC filter for digital 3.3V supply

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update analog sheet version to v1.0.4
update toplevel schematics version to v3.0.8
master
emard 6 years ago
parent e3ed37bef5
commit 856cf7fcd0
3 changed files with 265 additions and 107 deletions
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185
analog.bak
Unescape View File

@ -7,7 +7,7 @@ encoding utf-8
Sheet 9 11 Sheet 9 11
Title "ULX3S" Title "ULX3S"
Date "" Date ""
Rev "1.0.3" Rev "1.0.4"
Comp "EMARD" Comp "EMARD"
Comment1 "Analog audio and video" Comment1 "Analog audio and video"
Comment2 "" Comment2 ""
@ -290,23 +290,23 @@ GP17
$Comp $Comp
L power:+3V3 #PWR0138 L power:+3V3 #PWR0138
U 1 1 595BB15C U 1 1 595BB15C
P 1500 4200 P 2150 4000
F 0 "#PWR0138" H 1500 4050 50 0001 C CNN F 0 "#PWR0138" H 2150 3850 50 0001 C CNN
F 1 "+3V3" H 1500 4340 50 0000 C CNN F 1 "+3V3" H 2150 4140 50 0000 C CNN
F 2 "" H 1500 4200 50 0000 C CNN F 2 "" H 2150 4000 50 0000 C CNN
F 3 "" H 1500 4200 50 0000 C CNN F 3 "" H 2150 4000 50 0000 C CNN
1 1500 4200 1 2150 4000
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
Wire Wire Line Wire Wire Line
2400 4250 2850 4250 2150 4250 2850 4250
Wire Wire Line Wire Wire Line
2850 4250 2850 4350 2850 4250 2850 4350
Wire Wire Line Wire Wire Line
2850 4350 2900 4350 2850 4350 2900 4350
Connection ~ 2850 4250 Connection ~ 2850 4250
Wire Wire Line Wire Wire Line
3700 4250 4150 4250 3700 4250 4300 4250
$Comp $Comp
L power:GND #PWR0142 L power:GND #PWR0142
U 1 1 595BB251 U 1 1 595BB251
@ -460,8 +460,8 @@ AUDIO_L
Text Label 3000 2550 0 60 ~ 0 Text Label 3000 2550 0 60 ~ 0
AUDIO_R AUDIO_R
Text Label 3800 4250 0 60 ~ 0 Text Label 3800 4250 0 60 ~ 0
ADC3V3 ADCD3V3
Text Label 2450 4250 0 60 ~ 0 Text Label 2400 4250 0 60 ~ 0
ADC3V3 ADC3V3
Wire Wire Line Wire Wire Line
2900 5450 2400 5450 2900 5450 2400 5450
@ -470,76 +470,155 @@ ADC3V3
$Comp $Comp
L Device:L_Small L4 L Device:L_Small L4
U 1 1 5B3BC972 U 1 1 5B3BC972
P 1500 4300 P 2150 4100
F 0 "L4" H 1548 4346 50 0000 L CNN F 0 "L4" H 2198 4146 50 0000 L CNN
F 1 "33uH" H 1548 4255 50 0000 L CNN F 1 "33uH" H 2198 4055 50 0000 L CNN
F 2 "Inductor_SMD:L_0805_2012Metric_Pad1.29x1.40mm_HandSolder" H 1500 4300 50 0001 C CNN F 2 "Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 2150 4100 50 0001 C CNN
F 3 "~" H 1500 4300 50 0001 C CNN F 3 "~" H 2150 4100 50 0001 C CNN
F 4 "www.bourns.com" H 1500 4300 50 0001 C CNN "MNF1_URL" F 4 "www.bourns.com" H 2150 4100 50 0001 C CNN "MNF1_URL"
F 5 "CV201210-330K" H 1500 4300 50 0001 C CNN "MPN" F 5 "CV201210-330K" H 2150 4100 50 0001 C CNN "MPN"
F 6 "652-CV201210-330K" H 1500 4300 50 0001 C CNN "Mouser" F 6 "652-CV201210-330K" H 2150 4100 50 0001 C CNN "Mouser"
F 7 "CV201210-330KCT-ND" H 1500 4300 50 0001 C CNN "Digikey" F 7 "CV201210-330KCT-ND" H 2150 4100 50 0001 C CNN "Digikey"
F 8 "FL002" H 1500 4300 50 0001 C CNN "Koncar" F 8 "FL002" H 2150 4100 50 0001 C CNN "Koncar"
1 1500 4300 1 2150 4100
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
Wire Wire Line Wire Wire Line
1500 4400 1500 4450 2150 4200 2150 4250
$Comp $Comp
L Device:C C59 L Device:C C59
U 1 1 5B3BD68E U 1 1 5B3BD68E
P 1500 4650 P 2150 4450
F 0 "C59" H 1615 4696 50 0000 L CNN F 0 "C59" H 2265 4496 50 0000 L CNN
F 1 "220nF" H 1615 4605 50 0000 L CNN F 1 "220nF" H 2265 4405 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 1538 4500 50 0001 C CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 2188 4300 50 0001 C CNN
F 3 "~" H 1500 4650 50 0001 C CNN F 3 "~" H 2150 4450 50 0001 C CNN
1 1500 4650 1 2150 4450
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
Wire Wire Line Wire Wire Line
1500 4450 1050 4450 2150 4250 1700 4250
Wire Wire Line Wire Wire Line
1050 4450 1050 4500 1700 4250 1700 4300
Connection ~ 1500 4450 Connection ~ 2150 4250
Wire Wire Line Wire Wire Line
1500 4450 1500 4500 2150 4250 2150 4300
$Comp $Comp
L Device:C C58 L Device:C C58
U 1 1 5B3BE5D3 U 1 1 5B3BE5D3
P 1050 4650 P 1700 4450
F 0 "C58" H 1165 4696 50 0000 L CNN F 0 "C58" H 1815 4496 50 0000 L CNN
F 1 "22uF" H 1165 4605 50 0000 L CNN F 1 "22uF" H 1815 4405 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 1088 4500 50 0001 C CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 1738 4300 50 0001 C CNN
F 3 "~" H 1050 4650 50 0001 C CNN F 3 "~" H 1700 4450 50 0001 C CNN
1 1050 4650 1 1700 4450
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
$Comp $Comp
L power:GND #PWR0140 L power:GND #PWR0140
U 1 1 5B3BE698 U 1 1 5B3BE698
P 1050 4800 P 1700 4600
F 0 "#PWR0140" H 1050 4550 50 0001 C CNN F 0 "#PWR0140" H 1700 4350 50 0001 C CNN
F 1 "GND" H 1055 4627 50 0000 C CNN F 1 "GND" H 1705 4427 50 0000 C CNN
F 2 "" H 1050 4800 50 0001 C CNN F 2 "" H 1700 4600 50 0001 C CNN
F 3 "" H 1050 4800 50 0001 C CNN F 3 "" H 1700 4600 50 0001 C CNN
1 1050 4800 1 1700 4600
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
$Comp $Comp
L power:GND #PWR0144 L power:GND #PWR0144
U 1 1 5B3BE6ED U 1 1 5B3BE6ED
P 1500 4800 P 2150 4600
F 0 "#PWR0144" H 1500 4550 50 0001 C CNN F 0 "#PWR0144" H 2150 4350 50 0001 C CNN
F 1 "GND" H 1505 4627 50 0000 C CNN F 1 "GND" H 2155 4427 50 0000 C CNN
F 2 "" H 1500 4800 50 0001 C CNN F 2 "" H 2150 4600 50 0001 C CNN
F 3 "" H 1500 4800 50 0001 C CNN F 3 "" H 2150 4600 50 0001 C CNN
1 1500 4800 1 2150 4600
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
Text Label 1100 4450 0 60 ~ 0
ADC3V3
NoConn ~ 2900 5350 NoConn ~ 2900 5350
NoConn ~ 3700 5100 NoConn ~ 3700 5100
Text Notes 2950 3500 0 60 ~ 0 Text Notes 2950 3500 0 60 ~ 0
Output resistance: 75 ohm\nInternal resistance of FPGA pin: 10 ohm\n1/(1/(130+10)+1/(270+10)+1/(549+10)+1/(1100+10))=74.6 Output resistance: 75 ohm\nInternal resistance of FPGA pin: 10 ohm\n1/(1/(130+10)+1/(270+10)+1/(549+10)+1/(1100+10))=74.6
$Comp
L power:+3V3 #PWR0176
U 1 1 5CF68065
P 4750 4000
F 0 "#PWR0176" H 4750 3850 50 0001 C CNN
F 1 "+3V3" H 4750 4140 50 0000 C CNN
F 2 "" H 4750 4000 50 0000 C CNN
F 3 "" H 4750 4000 50 0000 C CNN
1 4750 4000
1 0 0 -1
$EndComp
$Comp
L Device:L_Small L5
U 1 1 5CF68070
P 4750 4100
F 0 "L5" H 4798 4146 50 0000 L CNN
F 1 "33uH" H 4798 4055 50 0000 L CNN
F 2 "Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 4750 4100 50 0001 C CNN
F 3 "~" H 4750 4100 50 0001 C CNN
F 4 "www.bourns.com" H 4750 4100 50 0001 C CNN "MNF1_URL"
F 5 "CV201210-330K" H 4750 4100 50 0001 C CNN "MPN"
F 6 "652-CV201210-330K" H 4750 4100 50 0001 C CNN "Mouser"
F 7 "CV201210-330KCT-ND" H 4750 4100 50 0001 C CNN "Digikey"
F 8 "FL002" H 4750 4100 50 0001 C CNN "Koncar"
1 4750 4100
1 0 0 -1
$EndComp
Wire Wire Line
4750 4200 4750 4250
$Comp
L Device:C C62
U 1 1 5CF68077
P 4750 4450
F 0 "C62" H 4865 4496 50 0000 L CNN
F 1 "220nF" H 4865 4405 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4788 4300 50 0001 C CNN
F 3 "~" H 4750 4450 50 0001 C CNN
1 4750 4450
1 0 0 -1
$EndComp
Wire Wire Line
4750 4250 4300 4250
Wire Wire Line
4300 4250 4300 4300
Connection ~ 4750 4250
Wire Wire Line
4750 4250 4750 4300
$Comp
L Device:C C61
U 1 1 5CF68081
P 4300 4450
F 0 "C61" H 4415 4496 50 0000 L CNN
F 1 "22uF" H 4415 4405 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 4338 4300 50 0001 C CNN
F 3 "~" H 4300 4450 50 0001 C CNN
1 4300 4450
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0175
U 1 1 5CF68087
P 4300 4600
F 0 "#PWR0175" H 4300 4350 50 0001 C CNN
F 1 "GND" H 4305 4427 50 0000 C CNN
F 2 "" H 4300 4600 50 0001 C CNN
F 3 "" H 4300 4600 50 0001 C CNN
1 4300 4600
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0177
U 1 1 5CF6808D
P 4750 4600
F 0 "#PWR0177" H 4750 4350 50 0001 C CNN
F 1 "GND" H 4755 4427 50 0000 C CNN
F 2 "" H 4750 4600 50 0001 C CNN
F 3 "" H 4750 4600 50 0001 C CNN
1 4750 4600
1 0 0 -1
$EndComp
Connection ~ 4300 4250
$EndSCHEMATC $EndSCHEMATC

185
analog.sch
Unescape View File

@ -7,7 +7,7 @@ encoding utf-8
Sheet 9 11 Sheet 9 11
Title "ULX3S" Title "ULX3S"
Date "" Date ""
Rev "1.0.3" Rev "1.0.4"
Comp "EMARD" Comp "EMARD"
Comment1 "Analog audio and video" Comment1 "Analog audio and video"
Comment2 "" Comment2 ""
@ -290,23 +290,23 @@ GP17
$Comp $Comp
L power:+3V3 #PWR0138 L power:+3V3 #PWR0138
U 1 1 595BB15C U 1 1 595BB15C
P 1500 4200 P 2150 4000
F 0 "#PWR0138" H 1500 4050 50 0001 C CNN F 0 "#PWR0138" H 2150 3850 50 0001 C CNN
F 1 "+3V3" H 1500 4340 50 0000 C CNN F 1 "+3V3" H 2150 4140 50 0000 C CNN
F 2 "" H 1500 4200 50 0000 C CNN F 2 "" H 2150 4000 50 0000 C CNN
F 3 "" H 1500 4200 50 0000 C CNN F 3 "" H 2150 4000 50 0000 C CNN
1 1500 4200 1 2150 4000
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
Wire Wire Line Wire Wire Line
2400 4250 2850 4250 2150 4250 2850 4250
Wire Wire Line Wire Wire Line
2850 4250 2850 4350 2850 4250 2850 4350
Wire Wire Line Wire Wire Line
2850 4350 2900 4350 2850 4350 2900 4350
Connection ~ 2850 4250 Connection ~ 2850 4250
Wire Wire Line Wire Wire Line
3700 4250 4150 4250 3700 4250 4300 4250
$Comp $Comp
L power:GND #PWR0142 L power:GND #PWR0142
U 1 1 595BB251 U 1 1 595BB251
@ -460,8 +460,8 @@ AUDIO_L
Text Label 3000 2550 0 60 ~ 0 Text Label 3000 2550 0 60 ~ 0
AUDIO_R AUDIO_R
Text Label 3800 4250 0 60 ~ 0 Text Label 3800 4250 0 60 ~ 0
ADC3V3 ADCD3V3
Text Label 2450 4250 0 60 ~ 0 Text Label 2400 4250 0 60 ~ 0
ADC3V3 ADC3V3
Wire Wire Line Wire Wire Line
2900 5450 2400 5450 2900 5450 2400 5450
@ -470,76 +470,155 @@ ADC3V3
$Comp $Comp
L Device:L_Small L4 L Device:L_Small L4
U 1 1 5B3BC972 U 1 1 5B3BC972
P 1500 4300 P 2150 4100
F 0 "L4" H 1548 4346 50 0000 L CNN F 0 "L4" H 2198 4146 50 0000 L CNN
F 1 "33uH" H 1548 4255 50 0000 L CNN F 1 "33uH" H 2198 4055 50 0000 L CNN
F 2 "Inductor_SMD:L_0805_2012Metric_Pad1.29x1.40mm_HandSolder" H 1500 4300 50 0001 C CNN F 2 "Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 2150 4100 50 0001 C CNN
F 3 "~" H 1500 4300 50 0001 C CNN F 3 "~" H 2150 4100 50 0001 C CNN
F 4 "www.bourns.com" H 1500 4300 50 0001 C CNN "MNF1_URL" F 4 "www.bourns.com" H 2150 4100 50 0001 C CNN "MNF1_URL"
F 5 "CV201210-330K" H 1500 4300 50 0001 C CNN "MPN" F 5 "CV201210-330K" H 2150 4100 50 0001 C CNN "MPN"
F 6 "652-CV201210-330K" H 1500 4300 50 0001 C CNN "Mouser" F 6 "652-CV201210-330K" H 2150 4100 50 0001 C CNN "Mouser"
F 7 "CV201210-330KCT-ND" H 1500 4300 50 0001 C CNN "Digikey" F 7 "CV201210-330KCT-ND" H 2150 4100 50 0001 C CNN "Digikey"
F 8 "FL002" H 1500 4300 50 0001 C CNN "Koncar" F 8 "FL002" H 2150 4100 50 0001 C CNN "Koncar"
1 1500 4300 1 2150 4100
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
Wire Wire Line Wire Wire Line
1500 4400 1500 4450 2150 4200 2150 4250
$Comp $Comp
L Device:C C59 L Device:C C59
U 1 1 5B3BD68E U 1 1 5B3BD68E
P 1500 4650 P 2150 4450
F 0 "C59" H 1615 4696 50 0000 L CNN F 0 "C59" H 2265 4496 50 0000 L CNN
F 1 "220nF" H 1615 4605 50 0000 L CNN F 1 "220nF" H 2265 4405 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 1538 4500 50 0001 C CNN F 2 "Capacitor_SMD:C_0603_1608Metric" H 2188 4300 50 0001 C CNN
F 3 "~" H 1500 4650 50 0001 C CNN F 3 "~" H 2150 4450 50 0001 C CNN
1 1500 4650 1 2150 4450
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
Wire Wire Line Wire Wire Line
1500 4450 1050 4450 2150 4250 1700 4250
Wire Wire Line Wire Wire Line
1050 4450 1050 4500 1700 4250 1700 4300
Connection ~ 1500 4450 Connection ~ 2150 4250
Wire Wire Line Wire Wire Line
1500 4450 1500 4500 2150 4250 2150 4300
$Comp $Comp
L Device:C C58 L Device:C C58
U 1 1 5B3BE5D3 U 1 1 5B3BE5D3
P 1050 4650 P 1700 4450
F 0 "C58" H 1165 4696 50 0000 L CNN F 0 "C58" H 1815 4496 50 0000 L CNN
F 1 "22uF" H 1165 4605 50 0000 L CNN F 1 "22uF" H 1815 4405 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 1088 4500 50 0001 C CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 1738 4300 50 0001 C CNN
F 3 "~" H 1050 4650 50 0001 C CNN F 3 "~" H 1700 4450 50 0001 C CNN
1 1050 4650 1 1700 4450
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
$Comp $Comp
L power:GND #PWR0140 L power:GND #PWR0140
U 1 1 5B3BE698 U 1 1 5B3BE698
P 1050 4800 P 1700 4600
F 0 "#PWR0140" H 1050 4550 50 0001 C CNN F 0 "#PWR0140" H 1700 4350 50 0001 C CNN
F 1 "GND" H 1055 4627 50 0000 C CNN F 1 "GND" H 1705 4427 50 0000 C CNN
F 2 "" H 1050 4800 50 0001 C CNN F 2 "" H 1700 4600 50 0001 C CNN
F 3 "" H 1050 4800 50 0001 C CNN F 3 "" H 1700 4600 50 0001 C CNN
1 1050 4800 1 1700 4600
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
$Comp $Comp
L power:GND #PWR0144 L power:GND #PWR0144
U 1 1 5B3BE6ED U 1 1 5B3BE6ED
P 1500 4800 P 2150 4600
F 0 "#PWR0144" H 1500 4550 50 0001 C CNN F 0 "#PWR0144" H 2150 4350 50 0001 C CNN
F 1 "GND" H 1505 4627 50 0000 C CNN F 1 "GND" H 2155 4427 50 0000 C CNN
F 2 "" H 1500 4800 50 0001 C CNN F 2 "" H 2150 4600 50 0001 C CNN
F 3 "" H 1500 4800 50 0001 C CNN F 3 "" H 2150 4600 50 0001 C CNN
1 1500 4800 1 2150 4600
1 0 0 -1 1 0 0 -1
$EndComp $EndComp
Text Label 1100 4450 0 60 ~ 0
ADC3V3
NoConn ~ 2900 5350 NoConn ~ 2900 5350
NoConn ~ 3700 5100 NoConn ~ 3700 5100
Text Notes 2950 3500 0 60 ~ 0 Text Notes 2950 3500 0 60 ~ 0
Output resistance: 75 ohm\nInternal resistance of FPGA pin: 10 ohm\n1/(1/(130+10)+1/(270+10)+1/(549+10)+1/(1100+10))=74.6 Output resistance: 75 ohm\nInternal resistance of FPGA pin: 10 ohm\n1/(1/(130+10)+1/(270+10)+1/(549+10)+1/(1100+10))=74.6
$Comp
L power:+3V3 #PWR0176
U 1 1 5CF68065
P 4750 4000
F 0 "#PWR0176" H 4750 3850 50 0001 C CNN
F 1 "+3V3" H 4750 4140 50 0000 C CNN
F 2 "" H 4750 4000 50 0000 C CNN
F 3 "" H 4750 4000 50 0000 C CNN
1 4750 4000
1 0 0 -1
$EndComp
$Comp
L Device:L_Small L5
U 1 1 5CF68070
P 4750 4100
F 0 "L5" H 4798 4146 50 0000 L CNN
F 1 "33uH" H 4798 4055 50 0000 L CNN
F 2 "Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 4750 4100 50 0001 C CNN
F 3 "~" H 4750 4100 50 0001 C CNN
F 4 "www.bourns.com" H 4750 4100 50 0001 C CNN "MNF1_URL"
F 5 "CV201210-330K" H 4750 4100 50 0001 C CNN "MPN"
F 6 "652-CV201210-330K" H 4750 4100 50 0001 C CNN "Mouser"
F 7 "CV201210-330KCT-ND" H 4750 4100 50 0001 C CNN "Digikey"
F 8 "FL002" H 4750 4100 50 0001 C CNN "Koncar"
1 4750 4100
1 0 0 -1
$EndComp
Wire Wire Line
4750 4200 4750 4250
$Comp
L Device:C C62
U 1 1 5CF68077
P 4750 4450
F 0 "C62" H 4865 4496 50 0000 L CNN
F 1 "220nF" H 4865 4405 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4788 4300 50 0001 C CNN
F 3 "~" H 4750 4450 50 0001 C CNN
1 4750 4450
1 0 0 -1
$EndComp
Wire Wire Line
4750 4250 4300 4250
Wire Wire Line
4300 4250 4300 4300
Connection ~ 4750 4250
Wire Wire Line
4750 4250 4750 4300
$Comp
L Device:C C61
U 1 1 5CF68081
P 4300 4450
F 0 "C61" H 4415 4496 50 0000 L CNN
F 1 "22uF" H 4415 4405 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 4338 4300 50 0001 C CNN
F 3 "~" H 4300 4450 50 0001 C CNN
1 4300 4450
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0175
U 1 1 5CF68087
P 4300 4600
F 0 "#PWR0175" H 4300 4350 50 0001 C CNN
F 1 "GND" H 4305 4427 50 0000 C CNN
F 2 "" H 4300 4600 50 0001 C CNN
F 3 "" H 4300 4600 50 0001 C CNN
1 4300 4600
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0177
U 1 1 5CF6808D
P 4750 4600
F 0 "#PWR0177" H 4750 4350 50 0001 C CNN
F 1 "GND" H 4755 4427 50 0000 C CNN
F 2 "" H 4750 4600 50 0001 C CNN
F 3 "" H 4750 4600 50 0001 C CNN
1 4750 4600
1 0 0 -1
$EndComp
Connection ~ 4300 4250
$EndSCHEMATC $EndSCHEMATC

2
ulx3s.sch
Unescape View File

@ -7,7 +7,7 @@ encoding utf-8
Sheet 1 11 Sheet 1 11
Title "ULX3S" Title "ULX3S"
Date "" Date ""
Rev "3.0.7" Rev "3.0.8"
Comp "EMARD" Comp "EMARD"
Comment1 "Root sheet" Comment1 "Root sheet"
Comment2 "" Comment2 ""

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