EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:ec-hardware-components
LIBS:uext
LIBS:ec-hardware-cache
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L R R1
U 1 1 55FEEA8B
P 800 1600
F 0 "R1" V 880 1600 50  0000 C CNN
F 1 "1k" V 800 1600 50  0000 C CNN
F 2 "Resistors_SMD:R_1210_HandSoldering" V 730 1600 30  0001 C CNN
F 3 "" H 800 1600 30  0000 C CNN
	1    800  1600
	1    0    0    -1  
$EndComp
$Comp
L R R2
U 1 1 55FEEB03
P 1650 1850
F 0 "R2" V 1730 1850 50  0000 C CNN
F 1 "22k" V 1650 1850 50  0000 C CNN
F 2 "Resistors_SMD:R_1210_HandSoldering" V 1580 1850 30  0001 C CNN
F 3 "" H 1650 1850 30  0000 C CNN
	1    1650 1850
	0    1    1    0   
$EndComp
$Comp
L R R4
U 1 1 55FEEB43
P 2900 850
F 0 "R4" V 2980 850 50  0000 C CNN
F 1 "1k" V 2900 850 50  0000 C CNN
F 2 "Resistors_SMD:R_1210_HandSoldering" V 2830 850 30  0001 C CNN
F 3 "" H 2900 850 30  0000 C CNN
	1    2900 850 
	0    1    1    0   
$EndComp
$Comp
L R R5
U 1 1 55FEEB8E
P 3550 1600
F 0 "R5" V 3630 1600 50  0000 C CNN
F 1 "1k" V 3550 1600 50  0000 C CNN
F 2 "Resistors_SMD:R_1210_HandSoldering" V 3480 1600 30  0001 C CNN
F 3 "" H 3550 1600 30  0000 C CNN
	1    3550 1600
	0    1    1    0   
$EndComp
$Comp
L C C1
U 1 1 55FEEBCE
P 1100 1600
F 0 "C1" H 1125 1700 50  0000 L CNN
F 1 "100nF" H 1125 1500 50  0000 L CNN
F 2 "Capacitors_SMD:C_1210_HandSoldering" H 1138 1450 30  0001 C CNN
F 3 "" H 1100 1600 60  0000 C CNN
	1    1100 1600
	1    0    0    -1  
$EndComp
$Comp
L C C2
U 1 1 55FEEC48
P 2450 850
F 0 "C2" H 2475 950 50  0000 L CNN
F 1 "100nF" H 2475 750 50  0000 L CNN
F 2 "Capacitors_SMD:C_1210_HandSoldering" H 2488 700 30  0001 C CNN
F 3 "" H 2450 850 60  0000 C CNN
	1    2450 850 
	0    1    1    0   
$EndComp
$Comp
L R R3
U 1 1 55FEECA4
P 2750 2550
F 0 "R3" V 2830 2550 50  0000 C CNN
F 1 "22k" V 2750 2550 50  0000 C CNN
F 2 "Resistors_SMD:R_1210_HandSoldering" V 2680 2550 30  0001 C CNN
F 3 "" H 2750 2550 30  0000 C CNN
	1    2750 2550
	0    1    1    0   
$EndComp
$Comp
L D D1
U 1 1 55FEED81
P 2450 2900
F 0 "D1" H 2450 3000 50  0000 C CNN
F 1 "1N4148" H 2450 2800 50  0000 C CNN
F 2 "Diodes_SMD:SOD-123" H 2450 2900 60  0001 C CNN
F 3 "" H 2450 2900 60  0000 C CNN
	1    2450 2900
	1    0    0    1   
$EndComp
$Comp
L D D2
U 1 1 55FEEE0B
P 2450 3200
F 0 "D2" H 2450 3300 50  0000 C CNN
F 1 "1N4148" H 2450 3100 50  0000 C CNN
F 2 "Diodes_SMD:SOD-123" H 2450 3200 60  0001 C CNN
F 3 "" H 2450 3200 60  0000 C CNN
	1    2450 3200
	-1   0    0    1   
$EndComp
$Comp
L TL074 U1
U 1 1 55FEEE53
P 2600 1600
F 0 "U1" H 2650 1800 60  0000 C CNN
F 1 "TL074" H 2750 1400 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 2600 1600 60  0001 C CNN
F 3 "" H 2600 1600 60  0000 C CNN
	1    2600 1600
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR1
U 1 1 55FEEEA8
P 800 2200
F 0 "#PWR1" H 800 1950 50  0001 C CNN
F 1 "GND" H 800 2050 50  0000 C CNN
F 2 "" H 800 2200 60  0000 C CNN
F 3 "" H 800 2200 60  0000 C CNN
	1    800  2200
	1    0    0    -1  
$EndComp
$Comp
L -5V #PWR4
U 1 1 55FEEED2
P 2900 2100
F 0 "#PWR4" H 2900 2200 50  0001 C CNN
F 1 "-5V" H 2900 2250 50  0000 C CNN
F 2 "" H 2900 2100 60  0000 C CNN
F 3 "" H 2900 2100 60  0000 C CNN
	1    2900 2100
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR3
U 1 1 55FEEEFC
P 2900 1150
F 0 "#PWR3" H 2900 1000 50  0001 C CNN
F 1 "+5V" H 2900 1290 50  0000 C CNN
F 2 "" H 2900 1150 60  0000 C CNN
F 3 "" H 2900 1150 60  0000 C CNN
	1    2900 1150
	1    0    0    -1  
$EndComp
Wire Wire Line
	2500 2150 2900 2150
Wire Wire Line
	2900 2150 2900 2100
Wire Wire Line
	2500 1200 2900 1200
Wire Wire Line
	2900 1200 2900 1150
Wire Wire Line
	2600 2900 2650 2900
Wire Wire Line
	2650 2900 2650 3200
Wire Wire Line
	2650 3200 2600 3200
Connection ~ 2650 3050
Wire Wire Line
	2300 2900 2250 2900
Wire Wire Line
	2250 2900 2250 3200
Wire Wire Line
	2250 3200 2300 3200
Wire Wire Line
	1800 1850 2100 1850
Wire Wire Line
	2100 1700 2100 3050
Wire Wire Line
	2100 3050 2250 3050
Connection ~ 2250 3050
Connection ~ 2100 1850
Wire Wire Line
	800  1850 1500 1850
Wire Wire Line
	800  1750 800  2200
Wire Wire Line
	1100 1750 1100 1850
Connection ~ 1100 1850
Wire Wire Line
	800  1450 800  1350
Wire Wire Line
	800  1350 2100 1350
Wire Wire Line
	2100 850  2100 1500
Wire Wire Line
	1100 1450 1100 1350
Connection ~ 1100 1350
Wire Wire Line
	2600 850  2750 850 
Wire Wire Line
	2300 850  2100 850 
Connection ~ 2100 1350
Wire Wire Line
	3050 850  3250 850 
Wire Wire Line
	3250 850  3250 3050
Wire Wire Line
	3100 1600 3400 1600
Connection ~ 3250 1600
Wire Wire Line
	3250 3050 3150 3050
Wire Wire Line
	2600 2550 2100 2550
Connection ~ 2100 2550
Wire Wire Line
	2900 2550 3250 2550
Connection ~ 3250 2550
$Comp
L C C3
U 1 1 55FEED09
P 3000 3050
F 0 "C3" H 3025 3150 50  0000 L CNN
F 1 "100nF" H 3025 2950 50  0000 L CNN
F 2 "Capacitors_SMD:C_1210_HandSoldering" H 3038 2900 30  0001 C CNN
F 3 "" H 3000 3050 60  0000 C CNN
	1    3000 3050
	0    1    1    0   
$EndComp
Wire Wire Line
	2650 3050 2850 3050
$Comp
L R R6
U 1 1 55FEFA19
P 4000 1950
F 0 "R6" V 4080 1950 50  0000 C CNN
F 1 "1k" V 4000 1950 50  0000 C CNN
F 2 "Resistors_SMD:R_1210_HandSoldering" V 3930 1950 30  0001 C CNN
F 3 "" H 4000 1950 30  0000 C CNN
	1    4000 1950
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR6
U 1 1 55FEFA87
P 4000 2600
F 0 "#PWR6" H 4000 2350 50  0001 C CNN
F 1 "GND" H 4000 2450 50  0000 C CNN
F 2 "" H 4000 2600 60  0000 C CNN
F 3 "" H 4000 2600 60  0000 C CNN
	1    4000 2600
	1    0    0    -1  
$EndComp
Wire Wire Line
	3700 1600 4800 1600
Wire Wire Line
	4000 1200 4000 1800
Connection ~ 4000 1600
Wire Wire Line
	4000 2100 4000 2600
$Comp
L R R7
U 1 1 55FEFC62
P 5650 2350
F 0 "R7" V 5730 2350 50  0000 C CNN
F 1 "1k" V 5650 2350 50  0000 C CNN
F 2 "Resistors_SMD:R_1210_HandSoldering" V 5580 2350 30  0001 C CNN
F 3 "" H 5650 2350 30  0000 C CNN
	1    5650 2350
	0    1    1    0   
$EndComp
Wire Wire Line
	4550 1800 4800 1800
Wire Wire Line
	4650 1800 4650 2350
Wire Wire Line
	5800 2350 6100 2350
Wire Wire Line
	6100 2350 6100 1700
Wire Wire Line
	5800 1700 6350 1700
Wire Wire Line
	2500 2000 2500 2150
$Comp
L TL074 U1
U 2 1 55FF006B
P 5300 1700
F 0 "U1" H 5350 1900 60  0000 C CNN
F 1 "TL074" H 5450 1500 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 5300 1700 60  0001 C CNN
F 3 "" H 5300 1700 60  0000 C CNN
	2    5300 1700
	1    0    0    -1  
$EndComp
$Comp
L -5V #PWR10
U 1 1 55FF0071
P 5600 2200
F 0 "#PWR10" H 5600 2300 50  0001 C CNN
F 1 "-5V" H 5600 2350 50  0000 C CNN
F 2 "" H 5600 2200 60  0000 C CNN
F 3 "" H 5600 2200 60  0000 C CNN
	1    5600 2200
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR9
U 1 1 55FF0077
P 5600 1250
F 0 "#PWR9" H 5600 1100 50  0001 C CNN
F 1 "+5V" H 5600 1390 50  0000 C CNN
F 2 "" H 5600 1250 60  0000 C CNN
F 3 "" H 5600 1250 60  0000 C CNN
	1    5600 1250
	1    0    0    -1  
$EndComp
Wire Wire Line
	5200 2250 5600 2250
Wire Wire Line
	5600 2250 5600 2200
Wire Wire Line
	5200 1300 5600 1300
Wire Wire Line
	5600 1300 5600 1250
Wire Wire Line
	5200 2100 5200 2250
$Comp
L BNC P1
U 1 1 55FF00E1
P 4400 1800
F 0 "P1" H 4410 1920 50  0000 C CNN
F 1 "BNC" V 4510 1740 50  0000 C CNN
F 2 "Connect:bnc" H 4400 1800 60  0001 C CNN
F 3 "" H 4400 1800 60  0000 C CNN
	1    4400 1800
	-1   0    0    -1  
$EndComp
Wire Wire Line
	4400 2000 4400 2600
Wire Wire Line
	4650 2350 5500 2350
$Comp
L GND #PWR8
U 1 1 55FF0353
P 4400 2600
F 0 "#PWR8" H 4400 2350 50  0001 C CNN
F 1 "GND" H 4400 2450 50  0000 C CNN
F 2 "" H 4400 2600 60  0000 C CNN
F 3 "" H 4400 2600 60  0000 C CNN
	1    4400 2600
	1    0    0    -1  
$EndComp
Connection ~ 4650 1800
$Comp
L TL074 U1
U 3 1 55FF04CC
P 6850 1800
F 0 "U1" H 6900 2000 60  0000 C CNN
F 1 "TL074" H 7000 1600 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 6850 1800 60  0001 C CNN
F 3 "" H 6850 1800 60  0000 C CNN
	3    6850 1800
	1    0    0    -1  
$EndComp
$Comp
L -5V #PWR14
U 1 1 55FF04D2
P 7150 2300
F 0 "#PWR14" H 7150 2400 50  0001 C CNN
F 1 "-5V" H 7150 2450 50  0000 C CNN
F 2 "" H 7150 2300 60  0000 C CNN
F 3 "" H 7150 2300 60  0000 C CNN
	1    7150 2300
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR13
U 1 1 55FF04D8
P 7150 1350
F 0 "#PWR13" H 7150 1200 50  0001 C CNN
F 1 "+5V" H 7150 1490 50  0000 C CNN
F 2 "" H 7150 1350 60  0000 C CNN
F 3 "" H 7150 1350 60  0000 C CNN
	1    7150 1350
	1    0    0    -1  
$EndComp
Wire Wire Line
	6750 2350 7150 2350
Wire Wire Line
	7150 2350 7150 2300
Wire Wire Line
	6750 1400 7150 1400
Wire Wire Line
	7150 1400 7150 1350
Wire Wire Line
	6750 2200 6750 2350
Wire Wire Line
	6350 1900 6300 1900
Wire Wire Line
	6300 1900 6300 2450
Wire Wire Line
	6300 2450 7450 2450
Wire Wire Line
	7450 2450 7450 1800
Wire Wire Line
	7350 1800 7850 1800
Connection ~ 6100 1700
$Comp
L TL074 U1
U 4 1 55FF06A1
P 8350 1900
F 0 "U1" H 8400 2100 60  0000 C CNN
F 1 "TL074" H 8500 1700 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 8350 1900 60  0001 C CNN
F 3 "" H 8350 1900 60  0000 C CNN
	4    8350 1900
	1    0    0    -1  
$EndComp
$Comp
L -5V #PWR16
U 1 1 55FF06A7
P 8650 2400
F 0 "#PWR16" H 8650 2500 50  0001 C CNN
F 1 "-5V" H 8650 2550 50  0000 C CNN
F 2 "" H 8650 2400 60  0000 C CNN
F 3 "" H 8650 2400 60  0000 C CNN
	1    8650 2400
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR15
U 1 1 55FF06AD
P 8650 1450
F 0 "#PWR15" H 8650 1300 50  0001 C CNN
F 1 "+5V" H 8650 1590 50  0000 C CNN
F 2 "" H 8650 1450 60  0000 C CNN
F 3 "" H 8650 1450 60  0000 C CNN
	1    8650 1450
	1    0    0    -1  
$EndComp
Wire Wire Line
	8250 2450 8650 2450
Wire Wire Line
	8650 2450 8650 2400
Wire Wire Line
	8250 1500 8650 1500
Wire Wire Line
	8650 1500 8650 1450
Wire Wire Line
	8250 2300 8250 2450
$Comp
L D D3
U 1 1 55FF06FE
P 9150 1900
F 0 "D3" H 9150 2000 50  0000 C CNN
F 1 "MBR0540TP" H 9150 1800 50  0000 C CNN
F 2 "Diodes_SMD:SOD-123" H 9150 1900 60  0001 C CNN
F 3 "" H 9150 1900 60  0000 C CNN
	1    9150 1900
	-1   0    0    1   
$EndComp
Connection ~ 7450 1800
Wire Wire Line
	8850 1900 9000 1900
Wire Wire Line
	7850 2000 7800 2000
Wire Wire Line
	7800 2000 7800 2550
Wire Wire Line
	7800 2550 9400 2550
Wire Wire Line
	9400 2550 9400 1900
Wire Wire Line
	9300 1900 10600 1900
$Comp
L R R8
U 1 1 55FF0BD8
P 10000 2150
F 0 "R8" V 10080 2150 50  0000 C CNN
F 1 "10k" V 10000 2150 50  0000 C CNN
F 2 "Resistors_SMD:R_1210_HandSoldering" V 9930 2150 30  0001 C CNN
F 3 "" H 10000 2150 30  0000 C CNN
	1    10000 2150
	1    0    0    -1  
$EndComp
$Comp
L C C4
U 1 1 55FF0BDE
P 10300 2150
F 0 "C4" H 10325 2250 50  0000 L CNN
F 1 "1uF" H 10325 2050 50  0000 L CNN
F 2 "Capacitors_SMD:C_1210_HandSoldering" H 10338 2000 30  0001 C CNN
F 3 "" H 10300 2150 60  0000 C CNN
	1    10300 2150
	1    0    0    -1  
$EndComp
Wire Wire Line
	10300 2000 10300 1900
Connection ~ 10300 1900
Connection ~ 9400 1900
Wire Wire Line
	10000 2000 10000 1900
Connection ~ 10000 1900
Wire Wire Line
	10000 2300 10000 2400
Wire Wire Line
	10000 2400 10300 2400
Wire Wire Line
	10300 2400 10300 2300
Wire Wire Line
	10150 2400 10150 2650
Connection ~ 10150 2400
$Comp
L GND #PWR19
U 1 1 55FF136E
P 10150 2650
F 0 "#PWR19" H 10150 2400 50  0001 C CNN
F 1 "GND" H 10150 2500 50  0000 C CNN
F 2 "" H 10150 2650 60  0000 C CNN
F 3 "" H 10150 2650 60  0000 C CNN
	1    10150 2650
	1    0    0    -1  
$EndComp
$Comp
L TST P4
U 1 1 55FF1BBB
P 10500 1350
F 0 "P4" H 10500 1650 50  0000 C BNN
F 1 "EC_V_out" H 10500 1600 50  0000 C CNN
F 2 "Connect:PINTST" H 10500 1350 60  0001 C CNN
F 3 "" H 10500 1350 60  0000 C CNN
	1    10500 1350
	1    0    0    -1  
$EndComp
Wire Wire Line
	10500 1350 10500 3450
$Comp
L TST P2
U 1 1 55FF1E7C
P 4000 1200
F 0 "P2" H 4000 1500 50  0000 C BNN
F 1 "OSC_out" H 4000 1450 50  0000 C CNN
F 2 "Connect:PINTST" H 4000 1200 60  0001 C CNN
F 3 "" H 4000 1200 60  0000 C CNN
	1    4000 1200
	1    0    0    -1  
$EndComp
$Comp
L C C5
U 1 1 5601A544
P 3000 4900
F 0 "C5" H 3025 5000 50  0000 L CNN
F 1 "1uF" H 3025 4800 50  0000 L CNN
F 2 "Capacitors_SMD:C_1210_HandSoldering" H 3038 4750 30  0001 C CNN
F 3 "" H 3000 4900 60  0000 C CNN
	1    3000 4900
	0    1    1    0   
$EndComp
Wire Wire Line
	2750 5000 2750 4900
Wire Wire Line
	2750 4900 2850 4900
Wire Wire Line
	3150 4900 3250 4900
Wire Wire Line
	3250 4900 3250 5000
$Comp
L -5V #PWR7
U 1 1 5601B045
P 4050 5400
F 0 "#PWR7" H 4050 5500 50  0001 C CNN
F 1 "-5V" H 4050 5550 50  0000 C CNN
F 2 "" H 4050 5400 60  0000 C CNN
F 3 "" H 4050 5400 60  0000 C CNN
	1    4050 5400
	1    0    0    -1  
$EndComp
Wire Wire Line
	3750 5500 4050 5500
Wire Wire Line
	4050 5500 4050 5400
$Comp
L +5V #PWR2
U 1 1 5601B2C0
P 1950 5400
F 0 "#PWR2" H 1950 5250 50  0001 C CNN
F 1 "+5V" H 1950 5540 50  0000 C CNN
F 2 "" H 1950 5400 60  0000 C CNN
F 3 "" H 1950 5400 60  0000 C CNN
	1    1950 5400
	1    0    0    -1  
$EndComp
Wire Wire Line
	1950 5400 1950 5500
Wire Wire Line
	1950 5500 2250 5500
Wire Wire Line
	3000 6050 3000 6150
$Comp
L GND #PWR5
U 1 1 5601B517
P 3000 6150
F 0 "#PWR5" H 3000 5900 50  0001 C CNN
F 1 "GND" H 3000 6000 50  0000 C CNN
F 2 "" H 3000 6150 60  0000 C CNN
F 3 "" H 3000 6150 60  0000 C CNN
	1    3000 6150
	1    0    0    -1  
$EndComp
$Comp
L TPS60400 U2
U 1 1 5601B6EB
P 3000 5500
F 0 "U2" H 3450 5250 60  0000 C CNN
F 1 "TPS60400" H 3000 5400 60  0000 C CNN
F 2 "Housings_SOT-23_SOT-143_TSOT-6:SOT-23-5" H 3000 5550 60  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tps60400.pdf" H 3800 4900 60  0001 C CNN
	1    3000 5500
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR12
U 1 1 5601BCF4
P 6350 5350
F 0 "#PWR12" H 6350 5100 50  0001 C CNN
F 1 "GND" H 6350 5200 50  0000 C CNN
F 2 "" H 6350 5350 60  0000 C CNN
F 3 "" H 6350 5350 60  0000 C CNN
	1    6350 5350
	1    0    0    -1  
$EndComp
Wire Wire Line
	6350 5250 6350 5350
$Comp
L +5V #PWR11
U 1 1 5601BEA9
P 6350 4350
F 0 "#PWR11" H 6350 4200 50  0001 C CNN
F 1 "+5V" H 6350 4490 50  0000 C CNN
F 2 "" H 6350 4350 60  0000 C CNN
F 3 "" H 6350 4350 60  0000 C CNN
	1    6350 4350
	1    0    0    -1  
$EndComp
Wire Wire Line
	6350 4350 6350 4450
Wire Wire Line
	6850 4750 8100 4750
Wire Wire Line
	6850 4850 8100 4850
Text GLabel 10600 1900 2    60   Input ~ 0
ECout
Connection ~ 10500 1900
Wire Wire Line
	8100 4500 9250 4500
Wire Wire Line
	9950 4500 10200 4500
Wire Wire Line
	9950 4300 10050 4300
Wire Wire Line
	10050 4300 10050 4800
$Comp
L GND #PWR18
U 1 1 5601D175
P 10050 4800
F 0 "#PWR18" H 10050 4550 50  0001 C CNN
F 1 "GND" H 10050 4650 50  0000 C CNN
F 2 "" H 10050 4800 60  0000 C CNN
F 3 "" H 10050 4800 60  0000 C CNN
	1    10050 4800
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR17
U 1 1 5601D1CE
P 9150 4200
F 0 "#PWR17" H 9150 4050 50  0001 C CNN
F 1 "+5V" H 9150 4340 50  0000 C CNN
F 2 "" H 9150 4200 60  0000 C CNN
F 3 "" H 9150 4200 60  0000 C CNN
	1    9150 4200
	1    0    0    -1  
$EndComp
Wire Wire Line
	9250 4300 9150 4300
Wire Wire Line
	9150 4300 9150 4200
Wire Wire Line
	8100 4750 8100 4500
Wire Wire Line
	10200 4500 10200 5050
Wire Wire Line
	10200 5050 8100 5050
Wire Wire Line
	8100 5050 8100 4850
Wire Wire Line
	10500 3450 5600 3450
Wire Wire Line
	5600 3450 5600 4850
Wire Wire Line
	5600 4850 5750 4850
$Comp
L UEXT P3
U 1 1 5601DD35
P 9600 4500
F 0 "P3" H 9600 4850 50  0000 C CNN
F 1 "UEXT" H 9600 4150 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_2x05" H 9700 3850 60  0001 C CNN
F 3 "https://en.wikipedia.org/wiki/UEXT" H 9650 4000 60  0001 C CNN
	1    9600 4500
	1    0    0    -1  
$EndComp
$Comp
L MCP3221 U3
U 1 1 5601B20F
P 6350 4850
F 0 "U3" H 5950 5150 50  0000 L CNN
F 1 "MCP3221" H 6450 5150 50  0000 L CNN
F 2 "Housings_SOT-23_SOT-143_TSOT-6:SOT-23-5" H 6350 4850 50  0001 C CIN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/21732D.pdf" H 6450 4300 50  0001 C CNN
	1    6350 4850
	1    0    0    -1  
$EndComp
$Comp
L C C6
U 1 1 5601B550
P 2150 5800
F 0 "C6" H 2175 5900 50  0000 L CNN
F 1 "1uF" H 2175 5700 50  0000 L CNN
F 2 "Capacitors_SMD:C_1210_HandSoldering" H 2188 5650 30  0001 C CNN
F 3 "" H 2150 5800 60  0000 C CNN
	1    2150 5800
	-1   0    0    1   
$EndComp
Wire Wire Line
	2150 5500 2150 5650
Connection ~ 2150 5500
Wire Wire Line
	2150 5950 2150 6100
Wire Wire Line
	3850 6100 2150 6100
Connection ~ 3000 6100
$Comp
L C C7
U 1 1 5601B8AF
P 3850 5750
F 0 "C7" H 3875 5850 50  0000 L CNN
F 1 "1uF" H 3875 5650 50  0000 L CNN
F 2 "Capacitors_SMD:C_1210_HandSoldering" H 3888 5600 30  0001 C CNN
F 3 "" H 3850 5750 60  0000 C CNN
	1    3850 5750
	-1   0    0    1   
$EndComp
Wire Wire Line
	3850 5500 3850 5600
Connection ~ 3850 5500
Wire Wire Line
	3850 5900 3850 6100
$EndSCHEMATC