USB-Serial.sch

EESchema Schematic File Version 4
LIBS:USB-Serial-cache
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L mylib:FT234XD U1
U 1 1 5D2C6E29
P 5650 4200
F 0 "U1" H 5150 4700 50  0000 C CNN
F 1 "FT234XD" H 6050 4700 50  0000 C CNN
F 2 "Package_DFN_QFN:DFN-12-1EP_3x3mm_P0.45mm_EP1.66x2.38mm" H 6150 3650 50  0001 C CNN
F 3 "https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT234XD.pdf" H 5650 4200 50  0001 C CNN
	1    5650 4200
	1    0    0    -1  
$EndComp
$Comp
L Device:R R1
U 1 1 5D2C9457
P 2550 4650
F 0 "R1" H 2620 4696 50  0000 L CNN
F 1 "5.1k" H 2620 4605 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2480 4650 50  0001 C CNN
F 3 "~" H 2550 4650 50  0001 C CNN
	1    2550 4650
	1    0    0    -1  
$EndComp
$Comp
L Device:R R2
U 1 1 5D2C99B2
P 2900 4650
F 0 "R2" H 2970 4696 50  0000 L CNN
F 1 "5.1k" H 2970 4605 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 2830 4650 50  0001 C CNN
F 3 "~" H 2900 4650 50  0001 C CNN
	1    2900 4650
	1    0    0    -1  
$EndComp
$Comp
L Connector:USB_C_Receptacle_USB2.0 J1
U 1 1 5D2CD4DF
P 1650 4100
F 0 "J1" H 1757 4967 50  0000 C CNN
F 1 "USB_C_Receptacle_USB2.0" H 1757 4876 50  0000 C CNN
F 2 "Connector_USB:USB_C_Receptacle_GCT_USB4085" H 1800 4100 50  0001 C CNN
F 3 "https://www.usb.org/sites/default/files/documents/usb_type-c.zip" H 1800 4100 50  0001 C CNN
	1    1650 4100
	1    0    0    -1  
$EndComp
NoConn ~ 2250 4600
NoConn ~ 2250 4700
Wire Wire Line
	4950 4200 2350 4200
Wire Wire Line
	2250 4100 2350 4100
Wire Wire Line
	2250 4000 2350 4000
Wire Wire Line
	2350 4000 2350 4100
Connection ~ 2350 4100
Wire Wire Line
	2350 4100 4950 4100
Wire Wire Line
	2250 4300 2350 4300
Wire Wire Line
	2350 4300 2350 4200
Connection ~ 2350 4200
Wire Wire Line
	2350 4200 2250 4200
Wire Wire Line
	2250 3800 2550 3800
Wire Wire Line
	2550 3800 2550 4500
Wire Wire Line
	2250 3700 2900 3700
Wire Wire Line
	2900 3700 2900 4500
$Comp
L power:GND #PWR03
U 1 1 5D2D3586
P 2550 4850
F 0 "#PWR03" H 2550 4600 50  0001 C CNN
F 1 "GND" H 2555 4677 50  0000 C CNN
F 2 "" H 2550 4850 50  0001 C CNN
F 3 "" H 2550 4850 50  0001 C CNN
	1    2550 4850
	1    0    0    -1  
$EndComp
Wire Wire Line
	2550 4850 2550 4800
$Comp
L power:GND #PWR04
U 1 1 5D2D3C29
P 2900 4850
F 0 "#PWR04" H 2900 4600 50  0001 C CNN
F 1 "GND" H 2905 4677 50  0000 C CNN
F 2 "" H 2900 4850 50  0001 C CNN
F 3 "" H 2900 4850 50  0001 C CNN
	1    2900 4850
	1    0    0    -1  
$EndComp
Wire Wire Line
	2900 4850 2900 4800
$Comp
L power:GND #PWR02
U 1 1 5D2D404C
P 1650 5100
F 0 "#PWR02" H 1650 4850 50  0001 C CNN
F 1 "GND" H 1655 4927 50  0000 C CNN
F 2 "" H 1650 5100 50  0001 C CNN
F 3 "" H 1650 5100 50  0001 C CNN
	1    1650 5100
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR01
U 1 1 5D2D4304
P 1350 5100
F 0 "#PWR01" H 1350 4850 50  0001 C CNN
F 1 "GND" H 1355 4927 50  0000 C CNN
F 2 "" H 1350 5100 50  0001 C CNN
F 3 "" H 1350 5100 50  0001 C CNN
	1    1350 5100
	1    0    0    -1  
$EndComp
Wire Wire Line
	1350 5100 1350 5000
Wire Wire Line
	1650 5100 1650 5000
$Comp
L Connector_Generic:Conn_01x04 J2
U 1 1 5D2D6E34
P 8800 4200
F 0 "J2" H 8718 3775 50  0000 C CNN
F 1 "Conn_01x04" H 8718 3866 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Horizontal" H 8800 4200 50  0001 C CNN
F 3 "~" H 8800 4200 50  0001 C CNN
	1    8800 4200
	1    0    0    1   
$EndComp
Wire Wire Line
	6350 4100 6450 4100
Wire Wire Line
	6450 4100 6450 4200
Wire Wire Line
	6450 4200 6350 4200
Wire Wire Line
	5550 4800 5550 4850
Wire Wire Line
	5550 4850 5650 4850
Wire Wire Line
	5750 4850 5750 4800
Wire Wire Line
	5650 4900 5650 4850
Connection ~ 5650 4850
Wire Wire Line
	5650 4850 5750 4850
$Comp
L Device:Fuse F1
U 1 1 5D2DAB2A
P 2650 3500
F 0 "F1" V 2453 3500 50  0000 C CNN
F 1 "Fuse" V 2544 3500 50  0000 C CNN
F 2 "Fuse:Fuse_0603_1608Metric" V 2580 3500 50  0001 C CNN
F 3 "~" H 2650 3500 50  0001 C CNN
	1    2650 3500
	0    1    1    0   
$EndComp
Wire Wire Line
	2250 3500 2500 3500
$Comp
L Device:L L1
U 1 1 5D2DBEA1
P 3150 3500
F 0 "L1" V 3340 3500 50  0000 C CNN
F 1 "L" V 3249 3500 50  0000 C CNN
F 2 "Inductor_SMD:L_0603_1608Metric" H 3150 3500 50  0001 C CNN
F 3 "~" H 3150 3500 50  0001 C CNN
	1    3150 3500
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2800 3500 3000 3500
Wire Wire Line
	3300 3500 3600 3500
Wire Wire Line
	7900 3500 7900 4300
Wire Wire Line
	7900 4300 8600 4300
Wire Wire Line
	6350 3900 6700 3900
Wire Wire Line
	6700 3900 6700 4100
Wire Wire Line
	6700 4100 7150 4100
Wire Wire Line
	6350 4000 6600 4000
$Comp
L power:GND #PWR09
U 1 1 5D2DF7A2
P 7600 4450
F 0 "#PWR09" H 7600 4200 50  0001 C CNN
F 1 "GND" H 7605 4277 50  0000 C CNN
F 2 "" H 7600 4450 50  0001 C CNN
F 3 "" H 7600 4450 50  0001 C CNN
	1    7600 4450
	1    0    0    -1  
$EndComp
Wire Wire Line
	8600 4200 7600 4200
Wire Wire Line
	7600 4200 7600 4450
Wire Wire Line
	5550 3600 5550 3500
Connection ~ 5550 3500
Wire Wire Line
	5550 3500 6400 3500
$Comp
L Device:C C2
U 1 1 5D2E0AC8
P 4500 4500
F 0 "C2" H 4615 4546 50  0000 L CNN
F 1 "0.1u" H 4615 4455 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 4538 4350 50  0001 C CNN
F 3 "~" H 4500 4500 50  0001 C CNN
	1    4500 4500
	1    0    0    -1  
$EndComp
Wire Wire Line
	5750 3600 5750 3350
Wire Wire Line
	5750 3350 4850 3350
Wire Wire Line
	4850 3350 4850 3750
Wire Wire Line
	4850 3900 4950 3900
Wire Wire Line
	4850 3900 4850 4500
Wire Wire Line
	4850 4500 4950 4500
Connection ~ 4850 3900
$Comp
L Device:C C1
U 1 1 5D2E53A4
P 4050 4500
F 0 "C1" H 4165 4546 50  0000 L CNN
F 1 "0.1u" H 4165 4455 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 4088 4350 50  0001 C CNN
F 3 "~" H 4050 4500 50  0001 C CNN
	1    4050 4500
	1    0    0    -1  
$EndComp
Wire Wire Line
	4500 4350 4500 3750
Wire Wire Line
	4500 3750 4850 3750
Connection ~ 4850 3750
Wire Wire Line
	4850 3750 4850 3900
Wire Wire Line
	4050 4350 4050 3500
Connection ~ 4050 3500
Wire Wire Line
	4050 3500 5550 3500
$Comp
L power:GND #PWR06
U 1 1 5D2E78B3
P 4050 4750
F 0 "#PWR06" H 4050 4500 50  0001 C CNN
F 1 "GND" H 4055 4577 50  0000 C CNN
F 2 "" H 4050 4750 50  0001 C CNN
F 3 "" H 4050 4750 50  0001 C CNN
	1    4050 4750
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR07
U 1 1 5D2E7E66
P 4500 4750
F 0 "#PWR07" H 4500 4500 50  0001 C CNN
F 1 "GND" H 4505 4577 50  0000 C CNN
F 2 "" H 4500 4750 50  0001 C CNN
F 3 "" H 4500 4750 50  0001 C CNN
	1    4500 4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	4050 4750 4050 4650
Wire Wire Line
	4500 4750 4500 4650
$Comp
L Device:R R3
U 1 1 5D2E9D71
P 3600 4500
F 0 "R3" H 3670 4546 50  0000 L CNN
F 1 "1k" H 3670 4455 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 3530 4500 50  0001 C CNN
F 3 "~" H 3600 4500 50  0001 C CNN
	1    3600 4500
	1    0    0    -1  
$EndComp
Connection ~ 3600 3500
Wire Wire Line
	3600 3500 4050 3500
Wire Wire Line
	3600 4350 3600 3900
$Comp
L power:GND #PWR05
U 1 1 5D2EC75D
P 3600 4750
F 0 "#PWR05" H 3600 4500 50  0001 C CNN
F 1 "GND" H 3605 4577 50  0000 C CNN
F 2 "" H 3600 4750 50  0001 C CNN
F 3 "" H 3600 4750 50  0001 C CNN
	1    3600 4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	3600 4750 3600 4650
$Comp
L Device:LED D2
U 1 1 5D2EDF49
P 6700 4500
F 0 "D2" H 6693 4716 50  0000 C CNN
F 1 "LED" H 6693 4625 50  0000 C CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 6700 4500 50  0001 C CNN
F 3 "~" H 6700 4500 50  0001 C CNN
	1    6700 4500
	1    0    0    -1  
$EndComp
Wire Wire Line
	6550 4500 6500 4500
$Comp
L Device:R R4
U 1 1 5D2EFFEF
P 7050 3750
F 0 "R4" H 7120 3796 50  0000 L CNN
F 1 "1k" H 7120 3705 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 6980 3750 50  0001 C CNN
F 3 "~" H 7050 3750 50  0001 C CNN
	1    7050 3750
	1    0    0    -1  
$EndComp
Wire Wire Line
	7050 3600 7050 3500
Connection ~ 7050 3500
Wire Wire Line
	7050 3500 7900 3500
Wire Wire Line
	6850 4500 7050 4500
Wire Wire Line
	7050 4500 7050 3900
$Comp
L Interface_UART:SP3481CN U2
U 1 1 5D2FF561
P 7150 2650
F 0 "U2" H 6900 3000 50  0000 C CNN
F 1 "SP3481CN" H 7400 3000 50  0000 C CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 8200 2300 50  0001 C CIN
F 3 "http://www.icbase.com/pdf/SPX/SPX00480106.pdf" H 7150 2650 50  0001 C CNN
	1    7150 2650
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR08
U 1 1 5D2D9739
P 5650 4900
F 0 "#PWR08" H 5650 4650 50  0001 C CNN
F 1 "GND" H 5655 4727 50  0000 C CNN
F 2 "" H 5650 4900 50  0001 C CNN
F 3 "" H 5650 4900 50  0001 C CNN
	1    5650 4900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0101
U 1 1 5D3022A0
P 7150 3150
F 0 "#PWR0101" H 7150 2900 50  0001 C CNN
F 1 "GND" H 7155 2977 50  0000 C CNN
F 2 "" H 7150 3150 50  0001 C CNN
F 3 "" H 7150 3150 50  0001 C CNN
	1    7150 3150
	1    0    0    -1  
$EndComp
Wire Wire Line
	7150 3150 7150 3050
Wire Wire Line
	6750 2550 6700 2550
Wire Wire Line
	6700 2550 6700 2750
Wire Wire Line
	6700 2750 6750 2750
Wire Wire Line
	6700 2750 6500 2750
Wire Wire Line
	6500 2750 6500 4500
Connection ~ 6700 2750
Connection ~ 6500 4500
Wire Wire Line
	6500 4500 6350 4500
$Comp
L Device:C C3
U 1 1 5D306468
P 6150 2150
F 0 "C3" H 6265 2196 50  0000 L CNN
F 1 "0.1u" H 6265 2105 50  0000 L CNN
F 2 "Capacitor_SMD:C_0402_1005Metric" H 6188 2000 50  0001 C CNN
F 3 "~" H 6150 2150 50  0001 C CNN
	1    6150 2150
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0102
U 1 1 5D306DC2
P 6150 2400
F 0 "#PWR0102" H 6150 2150 50  0001 C CNN
F 1 "GND" H 6155 2227 50  0000 C CNN
F 2 "" H 6150 2400 50  0001 C CNN
F 3 "" H 6150 2400 50  0001 C CNN
	1    6150 2400
	1    0    0    -1  
$EndComp
Wire Wire Line
	6150 2300 6150 2400
Wire Wire Line
	6150 2000 6150 1950
Wire Wire Line
	6150 1950 6400 1950
Wire Wire Line
	7150 1950 7150 2250
Wire Wire Line
	6750 2450 6600 2450
Wire Wire Line
	6600 2450 6600 4000
Connection ~ 6600 4000
Wire Wire Line
	6600 4000 7450 4000
Wire Wire Line
	6750 2850 6700 2850
Wire Wire Line
	6700 2850 6700 3900
Connection ~ 6700 3900
$Comp
L Device:R R7
U 1 1 5D311E73
P 7750 3000
F 0 "R7" H 7820 3046 50  0000 L CNN
F 1 "0" H 7820 2955 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7680 3000 50  0001 C CNN
F 3 "~" H 7750 3000 50  0001 C CNN
	1    7750 3000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R8
U 1 1 5D3131A2
P 8000 3000
F 0 "R8" H 8070 3046 50  0000 L CNN
F 1 "0" H 8070 2955 50  0000 L CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7930 3000 50  0001 C CNN
F 3 "~" H 8000 3000 50  0001 C CNN
	1    8000 3000
	1    0    0    -1  
$EndComp
Wire Wire Line
	7550 2750 7750 2750
Wire Wire Line
	7750 2750 7750 2850
Wire Wire Line
	7550 2550 8000 2550
Wire Wire Line
	8000 2550 8000 2850
$Comp
L Device:R R5
U 1 1 5D316660
P 7300 4100
F 0 "R5" V 7507 4100 50  0000 C CNN
F 1 "22" V 7416 4100 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7230 4100 50  0001 C CNN
F 3 "~" H 7300 4100 50  0001 C CNN
	1    7300 4100
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7450 4100 8000 4100
$Comp
L Device:R R6
U 1 1 5D316ACA
P 7600 4000
F 0 "R6" V 7807 4000 50  0000 C CNN
F 1 "22" V 7716 4000 50  0000 C CNN
F 2 "Resistor_SMD:R_0402_1005Metric" V 7530 4000 50  0001 C CNN
F 3 "~" H 7600 4000 50  0001 C CNN
	1    7600 4000
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7750 4000 8100 4000
Wire Wire Line
	8000 3150 8000 4100
Connection ~ 8000 4100
Wire Wire Line
	7750 3150 7750 3350
Wire Wire Line
	7750 3350 8100 3350
Wire Wire Line
	8100 3350 8100 4000
Connection ~ 8100 4000
Wire Wire Line
	6400 3500 6400 1950
Connection ~ 6400 3500
Wire Wire Line
	6400 3500 7050 3500
Connection ~ 6400 1950
Wire Wire Line
	6400 1950 7150 1950
$Comp
L Switch:SW_DPDT_x2 SW1
U 1 1 5D336554
P 8500 5250
F 0 "SW1" V 8454 5398 50  0000 L CNN
F 1 "SW_DPDT_x2" V 8545 5398 50  0000 L CNN
F 2 "Button_Switch_SMD:SW_SPDT_PCM12" H 8500 5250 50  0001 C CNN
F 3 "~" H 8500 5250 50  0001 C CNN
	1    8500 5250
	0    1    1    0   
$EndComp
Wire Wire Line
	8000 4100 8500 4100
$Comp
L Device:R R9
U 1 1 5D33E9FD
P 8500 4700
F 0 "R9" H 8570 4746 50  0000 L CNN
F 1 "120" H 8570 4655 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 8430 4700 50  0001 C CNN
F 3 "~" H 8500 4700 50  0001 C CNN
	1    8500 4700
	1    0    0    -1  
$EndComp
Wire Wire Line
	8500 4550 8500 4100
Connection ~ 8500 4100
Wire Wire Line
	8500 4100 8600 4100
Wire Wire Line
	8100 4000 8300 4000
Wire Wire Line
	8500 4850 8500 5050
Wire Wire Line
	8400 5450 8400 5500
Wire Wire Line
	8400 5500 8300 5500
Wire Wire Line
	8300 5500 8300 4000
Connection ~ 8300 4000
Wire Wire Line
	8300 4000 8600 4000
NoConn ~ 8600 5450
Wire Wire Line
	3600 3600 3600 3500
$Comp
L Device:LED D1
U 1 1 5D2EB193
P 3600 3750
F 0 "D1" V 3639 3633 50  0000 R CNN
F 1 "LED" V 3548 3633 50  0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 3600 3750 50  0001 C CNN
F 3 "~" H 3600 3750 50  0001 C CNN
	1    3600 3750
	0    -1   -1   0   
$EndComp
$EndSCHEMATC