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ttlink.sch
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ttlink.sch
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "USB-TTL adapter"
Date "2020-08-30"
Rev "1.0"
Comp "Andrey Lebedev"
Comment1 "USB adapter to connect Nano 4 / Oudie to Openvario"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Interface_USB:CH340G U1
U 1 1 5F4B2DFB
P 5850 3950
F 0 "U1" H 6050 3400 50 0000 C CNN
F 1 "CH340G" H 6150 3300 50 0000 C CNN
F 2 "Package_SO:SOIC-16_3.9x9.9mm_P1.27mm" H 5900 3400 50 0001 L CNN
F 3 "http://www.datasheet5.com/pdf-local-2195953" H 5500 4750 50 0001 C CNN
1 5850 3950
1 0 0 -1
$EndComp
$Comp
L Device:Crystal Y1
U 1 1 5F4B3750
P 5000 4350
F 0 "Y1" H 5000 4200 50 0000 C CNN
F 1 "12MHz" H 5000 4500 50 0000 C CNN
F 2 "Crystal:Crystal_HC49-4H_Vertical" H 5000 4350 50 0001 C CNN
F 3 "~" H 5000 4350 50 0001 C CNN
1 5000 4350
-1 0 0 1
$EndComp
$Comp
L Connector:USB_A J2
U 1 1 5F4B4600
P 6850 3850
F 0 "J2" H 6907 4317 50 0000 C CNN
F 1 "TTL" H 6907 4226 50 0000 C CNN
F 2 "Connector_USB:USB_A_Stewart_SS-52100-001_Horizontal" H 7000 3800 50 0001 C CNN
F 3 " ~" H 7000 3800 50 0001 C CNN
1 6850 3850
1 0 0 -1
$EndComp
$Comp
L Connector:USB_A J1
U 1 1 5F4B5260
P 4250 3850
F 0 "J1" H 4307 4317 50 0000 C CNN
F 1 "USB" H 4307 4226 50 0000 C CNN
F 2 "ttlink:USB2_A_Plug_Horizontal" H 4400 3800 50 0001 C CNN
F 3 " ~" H 4400 3800 50 0001 C CNN
1 4250 3850
1 0 0 -1
$EndComp
$Comp
L Device:C C1
U 1 1 5F4B5F46
P 4550 4500
F 0 "C1" H 4650 4550 50 0000 L CNN
F 1 "22pF" H 4650 4450 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 4588 4350 50 0001 C CNN
F 3 "~" H 4550 4500 50 0001 C CNN
1 4550 4500
1 0 0 -1
$EndComp
$Comp
L Device:C C3
U 1 1 5F4B6BDE
P 5300 4500
F 0 "C3" H 5415 4546 50 0000 L CNN
F 1 "22pF" H 5415 4455 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 5338 4350 50 0001 C CNN
F 3 "~" H 5300 4500 50 0001 C CNN
1 5300 4500
1 0 0 -1
$EndComp
$Comp
L Device:C C2
U 1 1 5F4B812A
P 5100 3300
F 0 "C2" H 5215 3346 50 0000 L CNN
F 1 "0.1uF" H 5215 3255 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 5138 3150 50 0001 C CNN
F 3 "~" H 5100 3300 50 0001 C CNN
1 5100 3300
1 0 0 -1
$EndComp
$Comp
L Device:C C4
U 1 1 5F4B83EB
P 5350 2700
F 0 "C4" H 5465 2746 50 0000 L CNN
F 1 "10uF" H 5465 2655 50 0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 5388 2550 50 0001 C CNN
F 3 "~" H 5350 2700 50 0001 C CNN
1 5350 2700
1 0 0 -1
$EndComp
Wire Wire Line
4550 3850 5450 3850
Wire Wire Line
4550 3950 5450 3950
Wire Wire Line
6250 3550 6400 3550
Wire Wire Line
6400 3550 6400 3000
Wire Wire Line
6400 3000 7500 3000
Wire Wire Line
7500 3000 7500 3950
Wire Wire Line
7500 3950 7300 3950
Wire Wire Line
7150 3850 7400 3850
Wire Wire Line
7400 3850 7400 3100
Wire Wire Line
7400 3100 6500 3100
Wire Wire Line
6500 3100 6500 3650
Wire Wire Line
6500 3650 6250 3650
$Comp
L Device:C C5
U 1 1 5F4CD1A1
P 5850 2700
F 0 "C5" H 5965 2746 50 0000 L CNN
F 1 "0.1uF" H 5965 2655 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 5888 2550 50 0001 C CNN
F 3 "~" H 5850 2700 50 0001 C CNN
1 5850 2700
1 0 0 -1
$EndComp
Wire Wire Line
5100 3450 5100 3550
Wire Wire Line
5750 3350 5750 3050
Wire Wire Line
5750 3050 5100 3050
Wire Wire Line
5100 3050 5100 3150
Wire Wire Line
4550 3650 4850 3650
Wire Wire Line
4850 3650 4850 2850
Wire Wire Line
4850 2850 5350 2850
Wire Wire Line
5850 2850 5850 3350
Connection ~ 5350 2850
Wire Wire Line
5350 2850 5850 2850
Connection ~ 5850 2850
$Comp
L power:Earth #PWR07
U 1 1 5F4D9527
P 6250 2850
F 0 "#PWR07" H 6250 2600 50 0001 C CNN
F 1 "Earth" H 6250 2700 50 0001 C CNN
F 2 "" H 6250 2850 50 0001 C CNN
F 3 "~" H 6250 2850 50 0001 C CNN
1 6250 2850
1 0 0 -1
$EndComp
Wire Wire Line
5350 2550 5850 2550
Wire Wire Line
6250 2550 6250 2850
Connection ~ 5850 2550
Wire Wire Line
5850 2550 6250 2550
Wire Wire Line
5450 4350 5300 4350
Wire Wire Line
4850 4350 4550 4350
Wire Wire Line
4550 4350 4550 4150
Wire Wire Line
4550 4150 5450 4150
Connection ~ 4550 4350
Connection ~ 5300 4350
Wire Wire Line
5300 4350 5150 4350
$Comp
L power:Earth #PWR05
U 1 1 5F4E2027
P 5300 4750
F 0 "#PWR05" H 5300 4500 50 0001 C CNN
F 1 "Earth" H 5300 4600 50 0001 C CNN
F 2 "" H 5300 4750 50 0001 C CNN
F 3 "~" H 5300 4750 50 0001 C CNN
1 5300 4750
1 0 0 -1
$EndComp
$Comp
L power:Earth #PWR02
U 1 1 5F4E2BBD
P 4550 4750
F 0 "#PWR02" H 4550 4500 50 0001 C CNN
F 1 "Earth" H 4550 4600 50 0001 C CNN
F 2 "" H 4550 4750 50 0001 C CNN
F 3 "~" H 4550 4750 50 0001 C CNN
1 4550 4750
1 0 0 -1
$EndComp
Wire Wire Line
4550 4650 4550 4750
Wire Wire Line
5300 4650 5300 4750
$Comp
L power:Earth #PWR06
U 1 1 5F4EA0BD
P 5850 4750
F 0 "#PWR06" H 5850 4500 50 0001 C CNN
F 1 "Earth" H 5850 4600 50 0001 C CNN
F 2 "" H 5850 4750 50 0001 C CNN
F 3 "~" H 5850 4750 50 0001 C CNN
1 5850 4750
1 0 0 -1
$EndComp
Wire Wire Line
5850 4550 5850 4750
$Comp
L power:Earth #PWR01
U 1 1 5F4ECA29
P 4250 4750
F 0 "#PWR01" H 4250 4500 50 0001 C CNN
F 1 "Earth" H 4250 4600 50 0001 C CNN
F 2 "" H 4250 4750 50 0001 C CNN
F 3 "~" H 4250 4750 50 0001 C CNN
1 4250 4750
1 0 0 -1
$EndComp
$Comp
L power:Earth #PWR08
U 1 1 5F4ECD40
P 6850 4750
F 0 "#PWR08" H 6850 4500 50 0001 C CNN
F 1 "Earth" H 6850 4600 50 0001 C CNN
F 2 "" H 6850 4750 50 0001 C CNN
F 3 "~" H 6850 4750 50 0001 C CNN
1 6850 4750
1 0 0 -1
$EndComp
Wire Wire Line
4250 4250 4250 4350
Wire Wire Line
4150 4250 4150 4350
Wire Wire Line
4150 4350 4250 4350
Connection ~ 4250 4350
Wire Wire Line
4250 4350 4250 4750
Wire Wire Line
6850 4250 6850 4350
Wire Wire Line
6750 4250 6750 4350
Wire Wire Line
6750 4350 6850 4350
Connection ~ 6850 4350
Wire Wire Line
6850 4350 6850 4750
NoConn ~ 5450 3650
NoConn ~ 6250 3850
NoConn ~ 6250 3950
NoConn ~ 6250 4050
NoConn ~ 6250 4150
NoConn ~ 6250 4250
NoConn ~ 6250 4350
$Comp
L power:+5V #PWR09
U 1 1 5F4F5115
P 7250 3400
F 0 "#PWR09" H 7250 3250 50 0001 C CNN
F 1 "+5V" H 7265 3573 50 0000 C CNN
F 2 "" H 7250 3400 50 0001 C CNN
F 3 "" H 7250 3400 50 0001 C CNN
1 7250 3400
1 0 0 -1
$EndComp
Wire Wire Line
7150 3650 7250 3650
Wire Wire Line
7250 3650 7250 3400
$Comp
L power:+5V #PWR03
U 1 1 5F4F6596
P 4850 2550
F 0 "#PWR03" H 4850 2400 50 0001 C CNN
F 1 "+5V" H 4865 2723 50 0000 C CNN
F 2 "" H 4850 2550 50 0001 C CNN
F 3 "" H 4850 2550 50 0001 C CNN
1 4850 2550
1 0 0 -1
$EndComp
Connection ~ 4850 2850
Wire Wire Line
6850 4350 7300 4350
Wire Wire Line
7300 4350 7300 4300
Wire Wire Line
7300 4000 7300 3950
Connection ~ 7300 3950
Wire Wire Line
7300 3950 7150 3950
$Comp
L power:Earth #PWR04
U 1 1 5F4D4E36
P 5100 3550
F 0 "#PWR04" H 5100 3300 50 0001 C CNN
F 1 "Earth" H 5100 3400 50 0001 C CNN
F 2 "" H 5100 3550 50 0001 C CNN
F 3 "~" H 5100 3550 50 0001 C CNN
1 5100 3550
1 0 0 -1
$EndComp
$Comp
L Device:D D1
U 1 1 5F53541B
P 7300 4150
F 0 "D1" V 7254 4229 50 0000 L CNN
F 1 "1N4148" V 7345 4229 50 0000 L CNN
F 2 "Diode_SMD:D_1206_3216Metric_Pad1.42x1.75mm_HandSolder" H 7300 4150 50 0001 C CNN
F 3 "~" H 7300 4150 50 0001 C CNN
1 7300 4150
0 1 1 0
$EndComp
Wire Wire Line
4850 2850 4850 2550
$EndSCHEMATC