EESchema Schematic File Version 4
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 2 2
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Regulator_Linear:LT1117-3.3 U3
U 1 1 5D3F0762
P 3800 1150
F 0 "U3" H 3800 1392 50  0000 C CNN
F 1 "LT1117-3.3" H 3800 1301 50  0000 C CNN
F 2 "Package_TO_SOT_SMD:SOT-223-3_TabPin2" H 3800 1150 50  0001 C CNN
F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/1117fd.pdf" H 3800 1150 50  0001 C CNN
	1    3800 1150
	1    0    0    -1  
$EndComp
Wire Wire Line
	3500 1150 3350 1150
Wire Wire Line
	1050 3200 1050 3400
Wire Wire Line
	1050 3400 1150 3400
Wire Wire Line
	1150 3400 1150 3200
Wire Wire Line
	1150 3400 1150 3600
Connection ~ 1150 3400
$Comp
L power:GND #PWR09
U 1 1 5D3F0774
P 1150 3600
F 0 "#PWR09" H 1150 3350 50  0001 C CNN
F 1 "GND" H 1155 3427 50  0000 C CNN
F 2 "" H 1150 3600 50  0001 C CNN
F 3 "" H 1150 3600 50  0001 C CNN
	1    1150 3600
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR011
U 1 1 5D3F077A
P 3800 1550
F 0 "#PWR011" H 3800 1300 50  0001 C CNN
F 1 "GND" H 3805 1377 50  0000 C CNN
F 2 "" H 3800 1550 50  0001 C CNN
F 3 "" H 3800 1550 50  0001 C CNN
	1    3800 1550
	1    0    0    -1  
$EndComp
Wire Wire Line
	3800 1450 3800 1500
$Comp
L power:+3.3V #PWR012
U 1 1 5D3F0781
P 4250 1050
F 0 "#PWR012" H 4250 900 50  0001 C CNN
F 1 "+3.3V" H 4265 1223 50  0000 C CNN
F 2 "" H 4250 1050 50  0001 C CNN
F 3 "" H 4250 1050 50  0001 C CNN
	1    4250 1050
	1    0    0    -1  
$EndComp
Wire Wire Line
	5950 1450 5950 1550
Wire Wire Line
	5950 1550 6050 1550
Wire Wire Line
	6350 1550 6350 1700
Connection ~ 5950 1550
Wire Wire Line
	5950 1550 5950 1700
Wire Wire Line
	6250 1700 6250 1550
Connection ~ 6250 1550
Wire Wire Line
	6250 1550 6350 1550
Wire Wire Line
	6150 1550 6150 1700
Connection ~ 6150 1550
Wire Wire Line
	6150 1550 6250 1550
Wire Wire Line
	6050 1550 6050 1700
Connection ~ 6050 1550
Wire Wire Line
	6050 1550 6150 1550
Wire Wire Line
	4250 1050 4250 1150
Wire Wire Line
	4250 1150 4100 1150
$Comp
L power:GND #PWR019
U 1 1 5D3F0797
P 5950 5050
F 0 "#PWR019" H 5950 4800 50  0001 C CNN
F 1 "GND" H 5955 4877 50  0000 C CNN
F 2 "" H 5950 5050 50  0001 C CNN
F 3 "" H 5950 5050 50  0001 C CNN
	1    5950 5050
	1    0    0    -1  
$EndComp
Wire Wire Line
	5950 4700 5950 4950
Wire Wire Line
	6050 4700 6050 4950
Wire Wire Line
	6050 4950 5950 4950
Connection ~ 5950 4950
Wire Wire Line
	5950 4950 5950 5050
Wire Wire Line
	6150 4700 6150 4950
Wire Wire Line
	6150 4950 6050 4950
Connection ~ 6050 4950
Wire Wire Line
	6250 4700 6250 4950
Wire Wire Line
	6250 4950 6150 4950
Connection ~ 6150 4950
$Comp
L Device:C C33
U 1 1 5D3F07A8
P 7050 1750
F 0 "C33" H 7165 1796 50  0000 L CNN
F 1 "100n" H 7165 1705 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 7088 1600 50  0001 C CNN
F 3 "~" H 7050 1750 50  0001 C CNN
	1    7050 1750
	1    0    0    -1  
$EndComp
$Comp
L Device:C C34
U 1 1 5D3F07AE
P 7400 1750
F 0 "C34" H 7515 1796 50  0000 L CNN
F 1 "100n" H 7515 1705 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 7438 1600 50  0001 C CNN
F 3 "~" H 7400 1750 50  0001 C CNN
	1    7400 1750
	1    0    0    -1  
$EndComp
Wire Wire Line
	6350 1550 7050 1550
Wire Wire Line
	7400 1550 7400 1600
Connection ~ 6350 1550
Wire Wire Line
	7050 1600 7050 1550
Connection ~ 7050 1550
Wire Wire Line
	7050 1550 7400 1550
$Comp
L power:GND #PWR021
U 1 1 5D3F07BA
P 7650 2000
F 0 "#PWR021" H 7650 1750 50  0001 C CNN
F 1 "GND" H 7655 1827 50  0000 C CNN
F 2 "" H 7650 2000 50  0001 C CNN
F 3 "" H 7650 2000 50  0001 C CNN
	1    7650 2000
	1    0    0    -1  
$EndComp
Wire Wire Line
	7650 2000 7400 2000
Wire Wire Line
	7400 2000 7400 1900
Wire Wire Line
	7400 2000 7050 2000
Wire Wire Line
	7050 2000 7050 1900
Connection ~ 7400 2000
$Comp
L Device:C C32
U 1 1 5D3F07C5
P 4250 1300
F 0 "C32" H 4365 1346 50  0000 L CNN
F 1 "100n" H 4365 1255 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4288 1150 50  0001 C CNN
F 3 "~" H 4250 1300 50  0001 C CNN
	1    4250 1300
	1    0    0    -1  
$EndComp
Connection ~ 4250 1150
$Comp
L Device:C C27
U 1 1 5D3F07CC
P 3350 1300
F 0 "C27" H 3465 1346 50  0000 L CNN
F 1 "100n" H 3465 1255 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 3388 1150 50  0001 C CNN
F 3 "~" H 3350 1300 50  0001 C CNN
	1    3350 1300
	1    0    0    -1  
$EndComp
Connection ~ 3350 1150
Wire Wire Line
	3350 1450 3350 1500
Wire Wire Line
	3350 1500 3800 1500
Connection ~ 3800 1500
Wire Wire Line
	3800 1500 3800 1550
Wire Wire Line
	3800 1500 4250 1500
Wire Wire Line
	4250 1500 4250 1450
$Comp
L Device:R R3
U 1 1 5D3F07DA
P 3400 2550
F 0 "R3" H 3470 2596 50  0000 L CNN
F 1 "1k5" H 3470 2505 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3330 2550 50  0001 C CNN
F 3 "~" H 3400 2550 50  0001 C CNN
	1    3400 2550
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR013
U 1 1 5D3F07E0
P 3400 2300
F 0 "#PWR013" H 3400 2150 50  0001 C CNN
F 1 "+3.3V" H 3415 2473 50  0000 C CNN
F 2 "" H 3400 2300 50  0001 C CNN
F 3 "" H 3400 2300 50  0001 C CNN
	1    3400 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	3400 2300 3400 2400
Wire Wire Line
	3400 2700 3400 2800
$Comp
L Switch:SW_Push RESET1
U 1 1 5D3F07EE
P 5000 1900
F 0 "RESET1" H 5000 2185 50  0000 C CNN
F 1 "SW_Push" H 5000 2094 50  0000 C CNN
F 2 "Button_Switch_THT:SW_PUSH_6mm" H 5000 2100 50  0001 C CNN
F 3 "~" H 5000 2100 50  0001 C CNN
	1    5000 1900
	1    0    0    -1  
$EndComp
$Comp
L Device:R R4
U 1 1 5D3F07F4
P 5300 1600
F 0 "R4" H 5370 1646 50  0000 L CNN
F 1 "10k" H 5370 1555 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 5230 1600 50  0001 C CNN
F 3 "~" H 5300 1600 50  0001 C CNN
	1    5300 1600
	1    0    0    -1  
$EndComp
Wire Wire Line
	5300 1750 5300 1900
Wire Wire Line
	5300 1900 5450 1900
Wire Wire Line
	5300 1900 5200 1900
Connection ~ 5300 1900
$Comp
L power:+3.3V #PWR018
U 1 1 5D3F07FE
P 5950 1450
F 0 "#PWR018" H 5950 1300 50  0001 C CNN
F 1 "+3.3V" H 5965 1623 50  0000 C CNN
F 2 "" H 5950 1450 50  0001 C CNN
F 3 "" H 5950 1450 50  0001 C CNN
	1    5950 1450
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR017
U 1 1 5D3F0804
P 5300 1400
F 0 "#PWR017" H 5300 1250 50  0001 C CNN
F 1 "+3.3V" H 5315 1573 50  0000 C CNN
F 2 "" H 5300 1400 50  0001 C CNN
F 3 "" H 5300 1400 50  0001 C CNN
	1    5300 1400
	1    0    0    -1  
$EndComp
Wire Wire Line
	5300 1400 5300 1450
$Comp
L power:GND #PWR014
U 1 1 5D3F080B
P 4550 1900
F 0 "#PWR014" H 4550 1650 50  0001 C CNN
F 1 "GND" H 4555 1727 50  0000 C CNN
F 2 "" H 4550 1900 50  0001 C CNN
F 3 "" H 4550 1900 50  0001 C CNN
	1    4550 1900
	0    1    1    0   
$EndComp
Text GLabel 3600 2900 2    50   Input ~ 0
USB_N
Text GLabel 3600 2800 2    50   Input ~ 0
USB_P
Wire Wire Line
	3400 2800 3600 2800
Wire Wire Line
	6750 4200 7050 4200
Text GLabel 7050 4200 2    50   Input ~ 0
USB_P
Text GLabel 7050 4100 2    50   Input ~ 0
USB_N
Wire Wire Line
	7050 4100 6750 4100
$Comp
L Device:LED D1
U 1 1 5D3F081A
P 8200 4150
F 0 "D1" V 8239 4033 50  0000 R CNN
F 1 "LED" V 8148 4033 50  0000 R CNN
F 2 "LED_SMD:LED_0805_2012Metric" H 8200 4150 50  0001 C CNN
F 3 "~" H 8200 4150 50  0001 C CNN
	1    8200 4150
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R5
U 1 1 5D3F0820
P 8200 4550
F 0 "R5" H 8270 4596 50  0000 L CNN
F 1 "270" H 8270 4505 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 8130 4550 50  0001 C CNN
F 3 "~" H 8200 4550 50  0001 C CNN
	1    8200 4550
	1    0    0    -1  
$EndComp
Wire Wire Line
	8200 4300 8200 4400
$Comp
L power:GND #PWR022
U 1 1 5D3F0827
P 8200 4800
F 0 "#PWR022" H 8200 4550 50  0001 C CNN
F 1 "GND" H 8205 4627 50  0000 C CNN
F 2 "" H 8200 4800 50  0001 C CNN
F 3 "" H 8200 4800 50  0001 C CNN
	1    8200 4800
	1    0    0    -1  
$EndComp
Wire Wire Line
	8200 4700 8200 4800
Wire Notes Line
	8050 5100 8550 5100
$Comp
L Device:C C28
U 1 1 5D3F0845
P 4400 2300
F 0 "C28" V 4148 2300 50  0000 C CNN
F 1 "22p" V 4239 2300 50  0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4438 2150 50  0001 C CNN
F 3 "~" H 4400 2300 50  0001 C CNN
	1    4400 2300
	0    1    1    0   
$EndComp
$Comp
L Device:C C29
U 1 1 5D3F084B
P 4400 2600
F 0 "C29" V 4148 2600 50  0000 C CNN
F 1 "22p" V 4239 2600 50  0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4438 2450 50  0001 C CNN
F 3 "~" H 4400 2600 50  0001 C CNN
	1    4400 2600
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR010
U 1 1 5D3F0860
P 4100 2950
F 0 "#PWR010" H 4100 2700 50  0001 C CNN
F 1 "GND" H 4105 2777 50  0000 C CNN
F 2 "" H 4100 2950 50  0001 C CNN
F 3 "" H 4100 2950 50  0001 C CNN
	1    4100 2950
	1    0    0    -1  
$EndComp
Wire Wire Line
	4250 2300 4100 2300
Wire Wire Line
	4100 2300 4100 2600
Wire Wire Line
	4250 2600 4100 2600
Connection ~ 4100 2600
Wire Wire Line
	5450 2400 5350 2400
Text GLabel 7050 4300 2    50   Input ~ 0
JTMS
Wire Wire Line
	7050 4300 6750 4300
Text GLabel 7050 4400 2    50   Input ~ 0
JTCK
Wire Wire Line
	7050 4400 6750 4400
Text GLabel 5300 1900 3    50   Input ~ 0
RST
Text GLabel 10550 6200 2    50   Input ~ 0
RST
Wire Wire Line
	10350 6200 10550 6200
Text GLabel 10550 6100 2    50   Input ~ 0
JTMS
Text GLabel 10550 5900 2    50   Input ~ 0
JTCK
Wire Wire Line
	10550 5900 10350 5900
Wire Wire Line
	10350 6100 10550 6100
$Comp
L power:GND #PWR016
U 1 1 5D3F088D
P 10950 6050
F 0 "#PWR016" H 10950 5800 50  0001 C CNN
F 1 "GND" H 10955 5877 50  0000 C CNN
F 2 "" H 10950 6050 50  0001 C CNN
F 3 "" H 10950 6050 50  0001 C CNN
	1    10950 6050
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR015
U 1 1 5D3F0893
P 10950 5750
F 0 "#PWR015" H 10950 5600 50  0001 C CNN
F 1 "+3.3V" H 10965 5923 50  0000 C CNN
F 2 "" H 10950 5750 50  0001 C CNN
F 3 "" H 10950 5750 50  0001 C CNN
	1    10950 5750
	1    0    0    -1  
$EndComp
Wire Wire Line
	10350 5800 10950 5800
Wire Wire Line
	10950 5800 10950 5750
Wire Wire Line
	10350 6000 10950 6000
Wire Wire Line
	10950 6000 10950 6050
Text Notes 9950 5500 0    50   ~ 0
SWD
Wire Notes Line
	11150 5400 11150 6400
Wire Notes Line
	9850 6400 9850 5400
Wire Notes Line
	9850 5400 11150 5400
$Comp
L Connector:Conn_01x05_Male J3
U 1 1 5D3F08A1
P 10150 6000
F 0 "J3" H 10258 6381 50  0000 C CNN
F 1 "Conn_01x05_Male" H 10258 6290 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical" H 10150 6000 50  0001 C CNN
F 3 "~" H 10150 6000 50  0001 C CNN
	1    10150 6000
	1    0    0    -1  
$EndComp
Wire Notes Line
	9850 6400 11150 6400
Text Notes 8550 5200 2    50   ~ 0
USERLED
Wire Notes Line
	8550 3850 8550 5100
Wire Notes Line
	8050 3850 8050 5100
Wire Wire Line
	4100 2600 4100 2800
$Comp
L rohm:BD3491FS U?
U 3 1 5D53D973
P 9800 3050
AR Path="/5D53D973" Ref="U?"  Part="3" 
AR Path="/5D4FBA63/5D53D973" Ref="U1"  Part="3" 
F 0 "U1" H 10178 3196 50  0000 L CNN
F 1 "BD3491FS" H 10178 3105 50  0000 L CNN
F 2 "rohm:SSOP-A32" H 9800 2950 50  0001 C CNN
F 3 "http://rohmfs.rohm.com/en/products/databook/datasheet/ic/audio_video/audio_processor/bd3491fs-e.pdf" H 9800 2950 50  0001 C CNN
	3    9800 3050
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR?
U 1 1 5D53D979
P 9900 2400
AR Path="/5D53D979" Ref="#PWR?"  Part="1" 
AR Path="/5D4FBA63/5D53D979" Ref="#PWR01"  Part="1" 
F 0 "#PWR01" H 9900 2250 50  0001 C CNN
F 1 "VCC" H 9917 2573 50  0000 C CNN
F 2 "" H 9900 2400 50  0001 C CNN
F 3 "" H 9900 2400 50  0001 C CNN
	1    9900 2400
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5D53D97F
P 9900 3800
AR Path="/5D53D97F" Ref="#PWR?"  Part="1" 
AR Path="/5D4FBA63/5D53D97F" Ref="#PWR02"  Part="1" 
F 0 "#PWR02" H 9900 3550 50  0001 C CNN
F 1 "GND" H 9905 3627 50  0000 C CNN
F 2 "" H 9900 3800 50  0001 C CNN
F 3 "" H 9900 3800 50  0001 C CNN
	1    9900 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	9850 3700 9900 3700
Wire Wire Line
	9900 3700 9900 3800
Wire Wire Line
	9950 3650 9950 3700
Wire Wire Line
	9950 3700 9900 3700
Connection ~ 9900 3700
Wire Wire Line
	9850 3400 9850 3700
Wire Wire Line
	9950 3400 9950 3450
Wire Wire Line
	9900 2400 9900 2450
$Comp
L Device:C_Small C?
U 1 1 5D53D98D
P 10300 2600
AR Path="/5D53D98D" Ref="C?"  Part="1" 
AR Path="/5D4FBA63/5D53D98D" Ref="C25"  Part="1" 
F 0 "C25" H 10208 2554 50  0000 R CNN
F 1 "100n" H 10208 2645 50  0000 R CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 10300 2600 50  0001 C CNN
F 3 "~" H 10300 2600 50  0001 C CNN
	1    10300 2600
	-1   0    0    1   
$EndComp
$Comp
L Device:CP_Small C?
U 1 1 5D53D993
P 10550 2600
AR Path="/5D53D993" Ref="C?"  Part="1" 
AR Path="/5D4FBA63/5D53D993" Ref="C26"  Part="1" 
F 0 "C26" H 10638 2646 50  0000 L CNN
F 1 "10u" H 10638 2555 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 10550 2600 50  0001 C CNN
F 3 "~" H 10550 2600 50  0001 C CNN
	1    10550 2600
	1    0    0    -1  
$EndComp
Wire Wire Line
	10550 2500 10550 2450
Wire Wire Line
	10550 2450 10300 2450
Connection ~ 9900 2450
Wire Wire Line
	9900 2450 9900 2500
Wire Wire Line
	10300 2500 10300 2450
Connection ~ 10300 2450
Wire Wire Line
	10300 2450 9900 2450
$Comp
L power:GND #PWR?
U 1 1 5D53D9A0
P 10550 3800
AR Path="/5D53D9A0" Ref="#PWR?"  Part="1" 
AR Path="/5D4FBA63/5D53D9A0" Ref="#PWR08"  Part="1" 
F 0 "#PWR08" H 10550 3550 50  0001 C CNN
F 1 "GND" H 10555 3627 50  0000 C CNN
F 2 "" H 10550 3800 50  0001 C CNN
F 3 "" H 10550 3800 50  0001 C CNN
	1    10550 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	10550 2750 10550 3800
Wire Wire Line
	10300 2700 10300 2750
Wire Wire Line
	10300 2750 10550 2750
Wire Wire Line
	10550 2700 10550 2750
Connection ~ 10550 2750
$Comp
L Device:CP_Small C?
U 1 1 5D53D9AB
P 9950 3550
AR Path="/5D53D9AB" Ref="C?"  Part="1" 
AR Path="/5D4FBA63/5D53D9AB" Ref="C24"  Part="1" 
F 0 "C24" H 10038 3596 50  0000 L CNN
F 1 "10u" H 10038 3505 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 9950 3550 50  0001 C CNN
F 3 "~" H 9950 3550 50  0001 C CNN
	1    9950 3550
	1    0    0    -1  
$EndComp
$Comp
L Jumper:Jumper_2_Open JP3
U 1 1 5D55CE6B
P 2500 1150
F 0 "JP3" H 2500 1385 50  0000 C CNN
F 1 "Jumper_2_Open" H 2500 1294 50  0000 C CNN
F 2 "Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm" H 2500 1150 50  0001 C CNN
F 3 "~" H 2500 1150 50  0001 C CNN
	1    2500 1150
	1    0    0    -1  
$EndComp
$Comp
L Device:Jumper JP4
U 1 1 5D55D781
P 2750 1950
F 0 "JP4" V 2704 2077 50  0000 L CNN
F 1 "Jumper" V 2795 2077 50  0000 L CNN
F 2 "Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm" H 2750 1950 50  0001 C CNN
F 3 "~" H 2750 1950 50  0001 C CNN
	1    2750 1950
	0    1    1    0   
$EndComp
Connection ~ 2750 1150
Wire Wire Line
	2750 1150 2700 1150
Wire Wire Line
	2750 1150 3200 1150
Wire Wire Line
	2750 1150 2750 1650
Wire Wire Line
	2750 2600 2750 2250
Text Notes 2550 2050 1    50   ~ 0
switch between \npwr jack/usb power\n\n
Wire Notes Line
	2000 850  2000 2250
Wire Notes Line
	2000 2250 3150 2250
Wire Notes Line
	3150 2250 3150 850 
Wire Notes Line
	3150 850  2000 850 
$Comp
L Connector:Barrel_Jack_Switch J1
U 1 1 5D5AF27B
P 1150 1250
F 0 "J1" H 1207 1567 50  0000 C CNN
F 1 "Barrel_Jack_Switch" H 1207 1476 50  0000 C CNN
F 2 "audioMux:BarrelJack_LCSC_C194407" H 1200 1210 50  0001 C CNN
F 3 "~" H 1200 1210 50  0001 C CNN
	1    1150 1250
	1    0    0    -1  
$EndComp
Wire Wire Line
	1450 1250 1550 1250
Wire Wire Line
	1550 1250 1550 1350
Wire Wire Line
	1550 1350 1450 1350
Wire Wire Line
	1450 1150 2300 1150
$Comp
L power:GND #PWR06
U 1 1 5D5B65C0
P 1550 1650
F 0 "#PWR06" H 1550 1400 50  0001 C CNN
F 1 "GND" H 1555 1477 50  0000 C CNN
F 2 "" H 1550 1650 50  0001 C CNN
F 3 "" H 1550 1650 50  0001 C CNN
	1    1550 1650
	1    0    0    -1  
$EndComp
Wire Wire Line
	1550 1350 1550 1650
Connection ~ 1550 1350
$Comp
L power:+3V3 #PWR07
U 1 1 5D5BF43A
P 9050 2300
F 0 "#PWR07" H 9050 2150 50  0001 C CNN
F 1 "+3V3" H 9065 2473 50  0000 C CNN
F 2 "" H 9050 2300 50  0001 C CNN
F 3 "" H 9050 2300 50  0001 C CNN
	1    9050 2300
	1    0    0    -1  
$EndComp
$Comp
L Device:R R6
U 1 1 5D5BF974
P 9050 2600
F 0 "R6" H 9120 2646 50  0000 L CNN
F 1 "10k" H 9120 2555 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 8980 2600 50  0001 C CNN
F 3 "~" H 9050 2600 50  0001 C CNN
	1    9050 2600
	1    0    0    -1  
$EndComp
$Comp
L Device:R R7
U 1 1 5D5BFEC0
P 9200 2600
F 0 "R7" H 9270 2646 50  0000 L CNN
F 1 "10k" H 9270 2555 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 9130 2600 50  0001 C CNN
F 3 "~" H 9200 2600 50  0001 C CNN
	1    9200 2600
	1    0    0    -1  
$EndComp
Wire Wire Line
	9050 2300 9050 2350
Wire Wire Line
	9050 2350 9200 2350
Wire Wire Line
	9200 2350 9200 2450
Connection ~ 9050 2350
Wire Wire Line
	9050 2350 9050 2450
Wire Wire Line
	9050 2750 9050 2950
Wire Wire Line
	8950 2950 9050 2950
Connection ~ 9050 2950
Wire Wire Line
	9050 2950 9400 2950
Wire Wire Line
	9200 3050 9200 2750
Wire Wire Line
	9200 3050 9400 3050
Wire Wire Line
	9200 3050 8950 3050
Connection ~ 9200 3050
Text GLabel 8950 2950 0    50   BiDi ~ 0
SDA
Text GLabel 8950 3050 0    50   Input ~ 0
SCL
$Comp
L MCU_ST_STM32F1:STM32F103C8Tx U4
U 1 1 5D3F075C
P 6150 3200
F 0 "U4" H 6100 1611 50  0000 C CNN
F 1 "STM32F103C8Tx" H 6100 1520 50  0000 C CNN
F 2 "Package_QFP:LQFP-48_7x7mm_P0.5mm" H 5550 1800 50  0001 R CNN
F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00161566.pdf" H 6150 3200 50  0001 C CNN
	1    6150 3200
	1    0    0    -1  
$EndComp
Text GLabel 5250 3600 0    50   Output ~ 0
SCL
Text GLabel 5250 3700 0    50   BiDi ~ 0
SDA
Wire Wire Line
	5250 3700 5450 3700
Wire Wire Line
	5450 3600 5250 3600
Connection ~ 3400 2800
Wire Wire Line
	1450 2600 2750 2600
Wire Wire Line
	1450 2800 3400 2800
Wire Wire Line
	1450 2900 3600 2900
$Comp
L Connector:USB_B_Micro J2
U 1 1 5D3F0768
P 1150 2800
F 0 "J2" H 1207 3267 50  0000 C CNN
F 1 "USB_B_Micro" H 1207 3176 50  0000 C CNN
F 2 "audioMux:usb" H 1300 2750 50  0001 C CNN
F 3 "~" H 1300 2750 50  0001 C CNN
	1    1150 2800
	1    0    0    -1  
$EndComp
Wire Wire Line
	5350 2600 5350 2400
Wire Wire Line
	3200 950  3200 1150
Connection ~ 3200 1150
Wire Wire Line
	3200 1150 3350 1150
$Comp
L power:VCC #PWR0101
U 1 1 5DA247C4
P 3200 950
F 0 "#PWR0101" H 3200 800 50  0001 C CNN
F 1 "VCC" H 3217 1123 50  0000 C CNN
F 2 "" H 3200 950 50  0001 C CNN
F 3 "" H 3200 950 50  0001 C CNN
	1    3200 950 
	1    0    0    -1  
$EndComp
$Comp
L Device:Crystal_GND24 Y1
U 1 1 5DAD6FE0
P 4750 2450
F 0 "Y1" V 4704 2694 50  0000 L CNN
F 1 "8Mhz" V 4795 2694 50  0000 L CNN
F 2 "Crystal:Crystal_SMD_5032-4Pin_5.0x3.2mm" H 4750 2450 50  0001 C CNN
F 3 "https://datasheet.lcsc.com/szlcsc/Zhejiang-Abel-Elec-SMD-5032-4P8M20pf20ppm_C133333.pdf" H 4750 2450 50  0001 C CNN
	1    4750 2450
	0    1    1    0   
$EndComp
Wire Wire Line
	4550 2300 4750 2300
Wire Wire Line
	4550 2600 4750 2600
Connection ~ 4750 2300
Wire Wire Line
	4750 2300 5450 2300
Connection ~ 4750 2600
Wire Wire Line
	4750 2600 5350 2600
Wire Wire Line
	4550 2450 4500 2450
Wire Wire Line
	4500 2450 4500 2800
Wire Wire Line
	4500 2800 4100 2800
Connection ~ 4100 2800
Wire Wire Line
	4100 2800 4100 2950
Wire Wire Line
	4950 2450 4950 2800
Wire Wire Line
	4950 2800 4500 2800
Connection ~ 4500 2800
$Comp
L Switch:SW_Push_Dual SW2
U 1 1 5DAFB3C5
P 2650 3400
F 0 "SW2" H 2650 3685 50  0000 C CNN
F 1 "SW_Push_Dual" H 2650 3594 50  0000 C CNN
F 2 "audioMux:XKB5858-Z-TP" H 2650 3600 50  0001 C CNN
F 3 "~" H 2650 3600 50  0001 C CNN
	1    2650 3400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2450 3400 2250 3400
Wire Wire Line
	2250 3400 2250 3600
Wire Wire Line
	2450 3600 2250 3600
Connection ~ 2250 3600
Wire Wire Line
	2250 3600 2250 3700
Wire Wire Line
	2850 3400 3100 3400
Wire Wire Line
	3100 3400 3100 3600
Wire Wire Line
	3100 3600 2850 3600
Text Notes 3850 7350 2    50   ~ 0
selector switches\nwill use internal pullup of stm32
Wire Notes Line
	2150 3050 3900 3050
Wire Notes Line
	3900 3050 3900 7500
Wire Notes Line
	3900 7500 2150 7500
Wire Notes Line
	2150 7500 2150 3050
$Comp
L Device:R_Small R8
U 1 1 5DC04939
P 2500 3700
F 0 "R8" V 2304 3700 50  0000 C CNN
F 1 "270" V 2395 3700 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 2500 3700 50  0001 C CNN
F 3 "~" H 2500 3700 50  0001 C CNN
	1    2500 3700
	0    1    1    0   
$EndComp
$Comp
L Device:LED D2
U 1 1 5DC03674
P 2800 3700
F 0 "D2" V 2839 3583 50  0000 R CNN
F 1 "LED" V 2748 3583 50  0000 R CNN
F 2 "LED_SMD:LED_0805_2012Metric" H 2800 3700 50  0001 C CNN
F 3 "~" H 2800 3700 50  0001 C CNN
	1    2800 3700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR030
U 1 1 5DB0AABB
P 2250 3800
F 0 "#PWR030" H 2250 3550 50  0001 C CNN
F 1 "GND" H 2255 3627 50  0000 C CNN
F 2 "" H 2250 3800 50  0001 C CNN
F 3 "" H 2250 3800 50  0001 C CNN
	1    2250 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	2400 3700 2250 3700
Connection ~ 2250 3700
Wire Wire Line
	2250 3700 2250 3800
Wire Wire Line
	2650 3700 2600 3700
Wire Wire Line
	4750 3700 4750 3200
Wire Wire Line
	4750 3200 5450 3200
Wire Wire Line
	5450 3100 4700 3100
Wire Wire Line
	4700 3100 4700 3400
Connection ~ 3100 3400
$Comp
L Switch:SW_Push_Dual SW5
U 1 1 5DCAC21D
P 3300 3900
F 0 "SW5" H 3300 4185 50  0000 C CNN
F 1 "SW_Push_Dual" H 3300 4094 50  0000 C CNN
F 2 "audioMux:XKB5858-Z-TP" H 3300 4100 50  0001 C CNN
F 3 "~" H 3300 4100 50  0001 C CNN
	1    3300 3900
	1    0    0    -1  
$EndComp
Wire Wire Line
	3100 3900 2900 3900
Wire Wire Line
	2900 3900 2900 4100
Wire Wire Line
	3100 4100 2900 4100
Connection ~ 2900 4100
Wire Wire Line
	2900 4100 2900 4200
Wire Wire Line
	3500 3900 3750 3900
Wire Wire Line
	3750 3900 3750 4100
Wire Wire Line
	3750 4100 3500 4100
$Comp
L Device:R_Small R11
U 1 1 5DCAC22B
P 3150 4200
F 0 "R11" V 2954 4200 50  0000 C CNN
F 1 "270" V 3045 4200 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 3150 4200 50  0001 C CNN
F 3 "~" H 3150 4200 50  0001 C CNN
	1    3150 4200
	0    1    1    0   
$EndComp
$Comp
L Device:LED D5
U 1 1 5DCAC231
P 3450 4200
F 0 "D5" V 3489 4083 50  0000 R CNN
F 1 "LED" V 3398 4083 50  0000 R CNN
F 2 "LED_SMD:LED_0805_2012Metric" H 3450 4200 50  0001 C CNN
F 3 "~" H 3450 4200 50  0001 C CNN
	1    3450 4200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR033
U 1 1 5DCAC237
P 2900 4300
F 0 "#PWR033" H 2900 4050 50  0001 C CNN
F 1 "GND" H 2905 4127 50  0000 C CNN
F 2 "" H 2900 4300 50  0001 C CNN
F 3 "" H 2900 4300 50  0001 C CNN
	1    2900 4300
	1    0    0    -1  
$EndComp
Wire Wire Line
	3050 4200 2900 4200
Connection ~ 2900 4200
Wire Wire Line
	2900 4200 2900 4300
Wire Wire Line
	3300 4200 3250 4200
Connection ~ 3750 3900
Wire Wire Line
	4800 3000 5450 3000
Wire Wire Line
	3750 3900 4800 3900
Wire Wire Line
	5300 5300 7350 5300
Wire Wire Line
	7350 5300 7350 3900
Wire Wire Line
	3600 4200 5300 4200
$Comp
L Switch:SW_Push_Dual SW3
U 1 1 5DCCEEEE
P 2650 4650
F 0 "SW3" H 2650 4935 50  0000 C CNN
F 1 "SW_Push_Dual" H 2650 4844 50  0000 C CNN
F 2 "audioMux:XKB5858-Z-TP" H 2650 4850 50  0001 C CNN
F 3 "~" H 2650 4850 50  0001 C CNN
	1    2650 4650
	1    0    0    -1  
$EndComp
Wire Wire Line
	2450 4650 2250 4650
Wire Wire Line
	2250 4650 2250 4850
Wire Wire Line
	2450 4850 2250 4850
Connection ~ 2250 4850
Wire Wire Line
	2250 4850 2250 4950
Wire Wire Line
	2850 4650 3100 4650
Wire Wire Line
	3100 4650 3100 4850
Wire Wire Line
	3100 4850 2850 4850
$Comp
L Device:R_Small R9
U 1 1 5DCCEEFC
P 2500 4950
F 0 "R9" V 2304 4950 50  0000 C CNN
F 1 "270" V 2395 4950 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 2500 4950 50  0001 C CNN
F 3 "~" H 2500 4950 50  0001 C CNN
	1    2500 4950
	0    1    1    0   
$EndComp
$Comp
L Device:LED D3
U 1 1 5DCCEF02
P 2800 4950
F 0 "D3" V 2839 4833 50  0000 R CNN
F 1 "LED" V 2748 4833 50  0000 R CNN
F 2 "LED_SMD:LED_0805_2012Metric" H 2800 4950 50  0001 C CNN
F 3 "~" H 2800 4950 50  0001 C CNN
	1    2800 4950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR031
U 1 1 5DCCEF08
P 2250 5050
F 0 "#PWR031" H 2250 4800 50  0001 C CNN
F 1 "GND" H 2255 4877 50  0000 C CNN
F 2 "" H 2250 5050 50  0001 C CNN
F 3 "" H 2250 5050 50  0001 C CNN
	1    2250 5050
	1    0    0    -1  
$EndComp
Wire Wire Line
	2400 4950 2250 4950
Connection ~ 2250 4950
Wire Wire Line
	2250 4950 2250 5050
Wire Wire Line
	2650 4950 2600 4950
Connection ~ 3100 4650
Wire Wire Line
	7400 5350 7400 3800
Wire Wire Line
	5200 5400 7450 5400
$Comp
L Switch:SW_Push_Dual SW6
U 1 1 5DCF1EFE
P 3300 5150
F 0 "SW6" H 3300 5435 50  0000 C CNN
F 1 "SW_Push_Dual" H 3300 5344 50  0000 C CNN
F 2 "audioMux:XKB5858-Z-TP" H 3300 5350 50  0001 C CNN
F 3 "~" H 3300 5350 50  0001 C CNN
	1    3300 5150
	1    0    0    -1  
$EndComp
Wire Wire Line
	3100 5150 2900 5150
Wire Wire Line
	2900 5150 2900 5350
Wire Wire Line
	3100 5350 2900 5350
Connection ~ 2900 5350
Wire Wire Line
	2900 5350 2900 5450
Wire Wire Line
	3500 5150 3750 5150
Wire Wire Line
	3750 5150 3750 5350
Wire Wire Line
	3750 5350 3500 5350
$Comp
L Device:R_Small R12
U 1 1 5DCF1F0C
P 3150 5450
F 0 "R12" V 2954 5450 50  0000 C CNN
F 1 "270" V 3045 5450 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 3150 5450 50  0001 C CNN
F 3 "~" H 3150 5450 50  0001 C CNN
	1    3150 5450
	0    1    1    0   
$EndComp
$Comp
L Device:LED D6
U 1 1 5DCF1F12
P 3450 5450
F 0 "D6" V 3489 5333 50  0000 R CNN
F 1 "LED" V 3398 5333 50  0000 R CNN
F 2 "LED_SMD:LED_0805_2012Metric" H 3450 5450 50  0001 C CNN
F 3 "~" H 3450 5450 50  0001 C CNN
	1    3450 5450
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR034
U 1 1 5DCF1F18
P 2900 5550
F 0 "#PWR034" H 2900 5300 50  0001 C CNN
F 1 "GND" H 2905 5377 50  0000 C CNN
F 2 "" H 2900 5550 50  0001 C CNN
F 3 "" H 2900 5550 50  0001 C CNN
	1    2900 5550
	1    0    0    -1  
$EndComp
Wire Wire Line
	3050 5450 2900 5450
Connection ~ 2900 5450
Wire Wire Line
	2900 5450 2900 5550
Wire Wire Line
	3300 5450 3250 5450
Wire Wire Line
	7500 5450 7500 3600
Wire Wire Line
	7550 5500 7550 3500
Wire Wire Line
	6750 4000 8200 4000
Wire Notes Line
	8550 3850 8050 3850
$Comp
L Switch:SW_Push_Dual SW4
U 1 1 5DD6E675
P 2650 5900
F 0 "SW4" H 2650 6185 50  0000 C CNN
F 1 "SW_Push_Dual" H 2650 6094 50  0000 C CNN
F 2 "audioMux:XKB5858-Z-TP" H 2650 6100 50  0001 C CNN
F 3 "~" H 2650 6100 50  0001 C CNN
	1    2650 5900
	1    0    0    -1  
$EndComp
Wire Wire Line
	2450 5900 2250 5900
Wire Wire Line
	2250 5900 2250 6100
Wire Wire Line
	2450 6100 2250 6100
Connection ~ 2250 6100
Wire Wire Line
	2250 6100 2250 6200
Wire Wire Line
	2850 5900 3100 5900
Wire Wire Line
	3100 5900 3100 6100
Wire Wire Line
	3100 6100 2850 6100
$Comp
L Device:R_Small R10
U 1 1 5DD6E683
P 2500 6200
F 0 "R10" V 2304 6200 50  0000 C CNN
F 1 "270" V 2395 6200 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 2500 6200 50  0001 C CNN
F 3 "~" H 2500 6200 50  0001 C CNN
	1    2500 6200
	0    1    1    0   
$EndComp
$Comp
L Device:LED D4
U 1 1 5DD6E689
P 2800 6200
F 0 "D4" V 2839 6083 50  0000 R CNN
F 1 "LED" V 2748 6083 50  0000 R CNN
F 2 "LED_SMD:LED_0805_2012Metric" H 2800 6200 50  0001 C CNN
F 3 "~" H 2800 6200 50  0001 C CNN
	1    2800 6200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR032
U 1 1 5DD6E68F
P 2250 6300
F 0 "#PWR032" H 2250 6050 50  0001 C CNN
F 1 "GND" H 2255 6127 50  0000 C CNN
F 2 "" H 2250 6300 50  0001 C CNN
F 3 "" H 2250 6300 50  0001 C CNN
	1    2250 6300
	1    0    0    -1  
$EndComp
Wire Wire Line
	2400 6200 2250 6200
Connection ~ 2250 6200
Wire Wire Line
	2250 6200 2250 6300
Wire Wire Line
	2650 6200 2600 6200
Wire Wire Line
	5300 5550 7600 5550
Wire Wire Line
	7600 5550 7600 3400
Wire Wire Line
	5350 5600 7650 5600
Wire Wire Line
	7650 5600 7650 3300
Wire Wire Line
	6750 3900 7350 3900
Wire Wire Line
	6750 3800 7400 3800
Wire Wire Line
	5250 5350 7400 5350
Wire Wire Line
	7450 5400 7450 3700
Wire Wire Line
	6750 3700 7450 3700
Wire Wire Line
	6750 3600 7500 3600
Wire Wire Line
	6750 3500 7550 3500
Wire Wire Line
	6750 3400 7600 3400
Wire Wire Line
	6750 3300 7650 3300
$Comp
L Switch:SW_Push_Dual SW7
U 1 1 5DEAAA27
P 3300 6400
F 0 "SW7" H 3300 6685 50  0000 C CNN
F 1 "SW_Push_Dual" H 3300 6594 50  0000 C CNN
F 2 "audioMux:XKB5858-Z-TP" H 3300 6600 50  0001 C CNN
F 3 "~" H 3300 6600 50  0001 C CNN
	1    3300 6400
	1    0    0    -1  
$EndComp
Wire Wire Line
	3100 6400 2900 6400
Wire Wire Line
	2900 6400 2900 6600
Wire Wire Line
	3100 6600 2900 6600
Connection ~ 2900 6600
Wire Wire Line
	2900 6600 2900 6700
Wire Wire Line
	3500 6400 3750 6400
Wire Wire Line
	3750 6400 3750 6600
Wire Wire Line
	3750 6600 3500 6600
$Comp
L Device:R_Small R13
U 1 1 5DEAAA35
P 3150 6700
F 0 "R13" V 2954 6700 50  0000 C CNN
F 1 "270" V 3045 6700 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 3150 6700 50  0001 C CNN
F 3 "~" H 3150 6700 50  0001 C CNN
	1    3150 6700
	0    1    1    0   
$EndComp
$Comp
L Device:LED D7
U 1 1 5DEAAA3B
P 3450 6700
F 0 "D7" V 3489 6583 50  0000 R CNN
F 1 "LED" V 3398 6583 50  0000 R CNN
F 2 "LED_SMD:LED_0805_2012Metric" H 3450 6700 50  0001 C CNN
F 3 "~" H 3450 6700 50  0001 C CNN
	1    3450 6700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR035
U 1 1 5DEAAA41
P 2900 6800
F 0 "#PWR035" H 2900 6550 50  0001 C CNN
F 1 "GND" H 2905 6627 50  0000 C CNN
F 2 "" H 2900 6800 50  0001 C CNN
F 3 "" H 2900 6800 50  0001 C CNN
	1    2900 6800
	1    0    0    -1  
$EndComp
Wire Wire Line
	3050 6700 2900 6700
Connection ~ 2900 6700
Wire Wire Line
	2900 6700 2900 6800
Wire Wire Line
	3300 6700 3250 6700
Wire Wire Line
	4800 3900 4800 3000
Wire Wire Line
	3100 3400 4700 3400
Wire Wire Line
	2950 3700 4750 3700
Wire Wire Line
	5300 4200 5300 5300
Wire Wire Line
	5250 4650 5250 5350
Wire Wire Line
	3100 4650 5250 4650
Wire Wire Line
	5200 4950 5200 5400
Wire Wire Line
	2950 4950 5200 4950
Wire Wire Line
	5400 5650 7700 5650
Wire Wire Line
	7700 5650 7700 3200
Wire Wire Line
	7700 3200 6750 3200
NoConn ~ 6750 4500
NoConn ~ 6750 3000
NoConn ~ 5450 3300
NoConn ~ 5450 3400
NoConn ~ 5450 3500
NoConn ~ 5450 3800
NoConn ~ 5450 3900
NoConn ~ 5450 4000
NoConn ~ 5450 4100
NoConn ~ 5450 4200
NoConn ~ 5450 4300
NoConn ~ 5450 4400
NoConn ~ 5450 4500
NoConn ~ 5450 2800
NoConn ~ 5450 2700
NoConn ~ 5450 2600
NoConn ~ 1450 3000
Wire Wire Line
	3750 5150 5100 5150
Wire Wire Line
	5100 5150 5100 5450
Wire Wire Line
	5100 5450 7500 5450
Connection ~ 3750 5150
Wire Wire Line
	3600 5450 5050 5450
Wire Wire Line
	5050 5450 5050 5500
Wire Wire Line
	5050 5500 7550 5500
Wire Wire Line
	3100 5900 5300 5900
Wire Wire Line
	5300 5900 5300 5550
Connection ~ 3100 5900
Wire Wire Line
	2950 6200 5350 6200
Wire Wire Line
	5350 6200 5350 5600
Wire Wire Line
	3750 6400 5400 6400
Wire Wire Line
	5400 6400 5400 5650
Connection ~ 3750 6400
Wire Wire Line
	3600 6700 5450 6700
Wire Wire Line
	5450 6700 5450 5700
Wire Wire Line
	5450 5700 7750 5700
Wire Wire Line
	7750 5700 7750 3100
Wire Wire Line
	6750 3100 7750 3100
$Comp
L Device:R R14
U 1 1 5E3B11D0
P 5050 2100
F 0 "R14" H 5120 2146 50  0000 L CNN
F 1 "10k" H 5120 2055 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 4980 2100 50  0001 C CNN
F 3 "~" H 5050 2100 50  0001 C CNN
	1    5050 2100
	0    1    1    0   
$EndComp
Wire Wire Line
	5200 2100 5450 2100
Wire Wire Line
	4550 1900 4700 1900
Wire Wire Line
	4900 2100 4700 2100
Wire Wire Line
	4700 2100 4700 1900
Connection ~ 4700 1900
Wire Wire Line
	4700 1900 4800 1900
$EndSCHEMATC