EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 3
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:R R?
U 1 1 5FA3F214
P 2550 1750
AR Path="/5FA3F214" Ref="R?"  Part="1" 
AR Path="/5FA32BAF/5FA3F214" Ref="R11"  Part="1" 
F 0 "R11" V 2343 1750 50  0000 C CNN
F 1 "10k" V 2434 1750 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 2480 1750 50  0001 C CNN
F 3 "~" H 2550 1750 50  0001 C CNN
	1    2550 1750
	-1   0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL072 U4
U 1 1 5FA3F21A
P 3500 1450
F 0 "U4" H 3500 1817 50  0000 C CNN
F 1 "TL072" H 3500 1726 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 3500 1450 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3500 1450 50  0001 C CNN
	1    3500 1450
	1    0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL072 U4
U 2 1 5FA3F238
P 3500 2500
F 0 "U4" H 3500 2867 50  0000 C CNN
F 1 "TL072" H 3500 2776 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 3500 2500 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3500 2500 50  0001 C CNN
	2    3500 2500
	1    0    0    1   
$EndComp
$Comp
L Device:R R9
U 1 1 5FA3F73F
P 4800 2250
F 0 "R9" H 4870 2296 50  0000 L CNN
F 1 "10k" H 4870 2205 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 4730 2250 50  0001 C CNN
F 3 "~" H 4800 2250 50  0001 C CNN
	1    4800 2250
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 5FA53815
P 2550 2900
AR Path="/5FA53815" Ref="R?"  Part="1" 
AR Path="/5FA32BAF/5FA53815" Ref="R19"  Part="1" 
F 0 "R19" V 2343 2900 50  0000 C CNN
F 1 "10k" V 2434 2900 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 2480 2900 50  0001 C CNN
F 3 "~" H 2550 2900 50  0001 C CNN
	1    2550 2900
	-1   0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL072 U6
U 1 1 5FA5381B
P 3500 3500
F 0 "U6" H 3500 3867 50  0000 C CNN
F 1 "TL072" H 3500 3776 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 3500 3500 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3500 3500 50  0001 C CNN
	1    3500 3500
	1    0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL072 U6
U 2 1 5FA53839
P 3500 4550
F 0 "U6" H 3500 4250 50  0000 C CNN
F 1 "TL072" H 3500 4350 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 3500 4550 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 3500 4550 50  0001 C CNN
	2    3500 4550
	1    0    0    1   
$EndComp
$Comp
L Device:R R?
U 1 1 5FA5CA18
P 2550 3950
AR Path="/5FA5CA18" Ref="R?"  Part="1" 
AR Path="/5FA32BAF/5FA5CA18" Ref="R27"  Part="1" 
F 0 "R27" V 2343 3950 50  0000 C CNN
F 1 "10k" V 2434 3950 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 2480 3950 50  0001 C CNN
F 3 "~" H 2550 3950 50  0001 C CNN
	1    2550 3950
	-1   0    0    1   
$EndComp
Wire Wire Line
	3900 4550 3850 4550
$Comp
L Device:LED D1
U 1 1 5FA5CA98
P 3850 4950
F 0 "D1" V 3900 5150 50  0000 R CNN
F 1 "LED" V 3750 5150 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 3850 4950 50  0001 C CNN
F 3 "~" H 3850 4950 50  0001 C CNN
	1    3850 4950
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R42
U 1 1 5FA5CA9E
P 3650 5350
F 0 "R42" V 3443 5350 50  0000 C CNN
F 1 "4k7" V 3534 5350 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3580 5350 50  0001 C CNN
F 3 "~" H 3650 5350 50  0001 C CNN
	1    3650 5350
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR029
U 1 1 5FA5CAA4
P 3450 5350
F 0 "#PWR029" H 3450 5100 50  0001 C CNN
F 1 "GND" V 3455 5222 50  0000 R CNN
F 2 "" H 3450 5350 50  0001 C CNN
F 3 "" H 3450 5350 50  0001 C CNN
	1    3450 5350
	0    1    1    0   
$EndComp
Wire Wire Line
	3450 5350 3500 5350
Wire Wire Line
	3800 5350 3850 5350
Connection ~ 3850 4550
Wire Wire Line
	3850 4550 3800 4550
$Comp
L Device:R R?
U 1 1 5FA60037
P 4800 3100
AR Path="/5FA60037" Ref="R?"  Part="1" 
AR Path="/5FA32BAF/5FA60037" Ref="R15"  Part="1" 
F 0 "R15" V 4593 3100 50  0000 C CNN
F 1 "10k" V 4684 3100 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 4730 3100 50  0001 C CNN
F 3 "~" H 4800 3100 50  0001 C CNN
	1    4800 3100
	-1   0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL072 U5
U 2 1 5FA60041
P 5800 2650
F 0 "U5" H 5800 3017 50  0000 C CNN
F 1 "TL072" H 5800 2926 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 5800 2650 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 5800 2650 50  0001 C CNN
	2    5800 2650
	1    0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL072 U5
U 1 1 5FA6006F
P 5800 3700
F 0 "U5" H 5800 4067 50  0000 C CNN
F 1 "TL072" H 5800 3976 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 5800 3700 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 5800 3700 50  0001 C CNN
	1    5800 3700
	1    0    0    1   
$EndComp
$Comp
L Device:R R?
U 1 1 5FA600A7
P 4800 4200
AR Path="/5FA600A7" Ref="R?"  Part="1" 
AR Path="/5FA32BAF/5FA600A7" Ref="R23"  Part="1" 
F 0 "R23" V 4593 4200 50  0000 C CNN
F 1 "10k" V 4684 4200 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 4730 4200 50  0001 C CNN
F 3 "~" H 4800 4200 50  0001 C CNN
	1    4800 4200
	-1   0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL072 U7
U 1 1 5FA600B1
P 5800 4650
F 0 "U7" H 5800 4350 50  0000 C CNN
F 1 "TL072" H 5800 4450 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 5800 4650 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 5800 4650 50  0001 C CNN
	1    5800 4650
	1    0    0    1   
$EndComp
$Comp
L Amplifier_Operational:TL072 U7
U 2 1 5FA600DF
P 5150 7050
F 0 "U7" H 5150 7417 50  0000 C CNN
F 1 "TL072" H 5150 7326 50  0000 C CNN
F 2 "Package_SO:SO-8_3.9x4.9mm_P1.27mm" H 5150 7050 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 5150 7050 50  0001 C CNN
	2    5150 7050
	1    0    0    -1  
$EndComp
Wire Wire Line
	6200 4650 6150 4650
$Comp
L Device:LED D2
U 1 1 5FA601D6
P 6150 4950
F 0 "D2" V 6250 5150 50  0000 R CNN
F 1 "LED" V 6150 5200 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" H 6150 4950 50  0001 C CNN
F 3 "~" H 6150 4950 50  0001 C CNN
	1    6150 4950
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R43
U 1 1 5FA601E0
P 5950 5300
F 0 "R43" V 5743 5300 50  0000 C CNN
F 1 "4k7" V 5834 5300 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 5880 5300 50  0001 C CNN
F 3 "~" H 5950 5300 50  0001 C CNN
	1    5950 5300
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR030
U 1 1 5FA601EA
P 5750 5300
F 0 "#PWR030" H 5750 5050 50  0001 C CNN
F 1 "GND" V 5755 5172 50  0000 R CNN
F 2 "" H 5750 5300 50  0001 C CNN
F 3 "" H 5750 5300 50  0001 C CNN
	1    5750 5300
	0    1    1    0   
$EndComp
Wire Wire Line
	5750 5300 5800 5300
Wire Wire Line
	6100 5300 6150 5300
Wire Wire Line
	6150 4800 6150 4750
Connection ~ 6150 4650
Wire Wire Line
	6150 4650 6100 4650
$Comp
L Device:R R24
U 1 1 5FAD2C52
P 6350 3700
F 0 "R24" V 6143 3700 50  0000 C CNN
F 1 "10k" V 6234 3700 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 6280 3700 50  0001 C CNN
F 3 "~" H 6350 3700 50  0001 C CNN
	1    6350 3700
	0    1    1    0   
$EndComp
$Comp
L Device:R R40
U 1 1 5FAD48B4
P 6350 4650
F 0 "R40" V 6143 4650 50  0000 C CNN
F 1 "10k" V 6234 4650 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 6280 4650 50  0001 C CNN
F 3 "~" H 6350 4650 50  0001 C CNN
	1    6350 4650
	0    1    1    0   
$EndComp
$Comp
L Device:R R12
U 1 1 5FAD64FB
P 4050 1450
F 0 "R12" V 3843 1450 50  0000 C CNN
F 1 "10k" V 3934 1450 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3980 1450 50  0001 C CNN
F 3 "~" H 4050 1450 50  0001 C CNN
	1    4050 1450
	0    1    1    0   
$EndComp
$Comp
L Device:R R20
U 1 1 5FAD76EA
P 4050 2500
F 0 "R20" V 3843 2500 50  0000 C CNN
F 1 "10k" V 3934 2500 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3980 2500 50  0001 C CNN
F 3 "~" H 4050 2500 50  0001 C CNN
	1    4050 2500
	0    1    1    0   
$EndComp
$Comp
L Device:R R28
U 1 1 5FAD8549
P 4050 3500
F 0 "R28" V 3843 3500 50  0000 C CNN
F 1 "10k" V 3934 3500 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3980 3500 50  0001 C CNN
F 3 "~" H 4050 3500 50  0001 C CNN
	1    4050 3500
	0    1    1    0   
$EndComp
$Comp
L Device:R R36
U 1 1 5FAD8A36
P 4050 4550
F 0 "R36" V 3843 4550 50  0000 C CNN
F 1 "10k" V 3934 4550 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3980 4550 50  0001 C CNN
F 3 "~" H 4050 4550 50  0001 C CNN
	1    4050 4550
	0    1    1    0   
$EndComp
Text HLabel 1900 5550 0    50   Input ~ 0
High_Threshold
Text HLabel 1900 5700 0    50   Input ~ 0
Low_Threshold
Text HLabel 1900 5850 0    50   Input ~ 0
Wave_In
Wire Wire Line
	1900 5850 3150 5850
Wire Wire Line
	1900 5550 2550 5550
Wire Wire Line
	3850 5100 3850 5200
Wire Wire Line
	6150 5100 6150 5200
Wire Wire Line
	3800 2500 3900 2500
Wire Wire Line
	6100 2650 6200 2650
Wire Wire Line
	6100 3700 6200 3700
Wire Wire Line
	4350 5600 6650 5600
Wire Wire Line
	4800 800  4800 2100
Wire Wire Line
	4500 5400 6800 5400
Wire Wire Line
	3200 2600 2550 2600
Wire Wire Line
	3200 3600 2550 3600
Wire Wire Line
	3200 4650 2550 4650
Wire Wire Line
	3800 1450 3900 1450
Wire Wire Line
	3900 3500 3800 3500
$Comp
L Device:R R16
U 1 1 5FAD18AB
P 6350 2650
F 0 "R16" V 6143 2650 50  0000 C CNN
F 1 "10k" V 6234 2650 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 6280 2650 50  0001 C CNN
F 3 "~" H 6350 2650 50  0001 C CNN
	1    6350 2650
	0    1    1    0   
$EndComp
Wire Wire Line
	6500 2650 6650 2650
Wire Wire Line
	6500 3700 6800 3700
Wire Wire Line
	6800 3700 6800 5400
Wire Wire Line
	6500 4650 6650 4650
Connection ~ 6650 4650
Wire Wire Line
	6650 4650 6650 5600
Wire Wire Line
	6650 2650 6650 4650
Wire Wire Line
	4500 3500 4500 5400
Wire Wire Line
	4850 6950 4750 6950
Wire Wire Line
	4850 7150 4750 7150
Wire Wire Line
	4750 7150 4750 7400
Wire Wire Line
	4750 7400 5550 7400
Wire Wire Line
	5550 7400 5550 7050
Wire Wire Line
	5550 7050 5450 7050
$Comp
L power:GND #PWR0101
U 1 1 60F06C69
P 4750 6950
F 0 "#PWR0101" H 4750 6700 50  0001 C CNN
F 1 "GND" V 4755 6822 50  0000 R CNN
F 2 "" H 4750 6950 50  0001 C CNN
F 3 "" H 4750 6950 50  0001 C CNN
	1    4750 6950
	0    1    1    0   
$EndComp
Wire Wire Line
	5450 4550 5500 4550
Connection ~ 5450 4550
Wire Wire Line
	5500 3600 5450 3600
Connection ~ 5450 3600
Wire Wire Line
	5450 2550 5500 2550
Wire Wire Line
	2550 800  2550 1550
Wire Wire Line
	3150 1350 3200 1350
Wire Wire Line
	3150 1350 3150 2400
Wire Wire Line
	3200 1550 2550 1550
Connection ~ 2550 1550
Wire Wire Line
	2550 1550 2550 1600
Connection ~ 2550 2600
Wire Wire Line
	2550 2600 2550 2750
Connection ~ 2550 3600
Wire Wire Line
	2550 3600 2550 3800
Connection ~ 2550 4650
Wire Wire Line
	2550 4100 2550 4650
Wire Wire Line
	2550 3050 2550 3600
Wire Wire Line
	2550 1900 2550 2600
Wire Wire Line
	3200 4450 3150 4450
Connection ~ 3150 4450
Wire Wire Line
	3150 4450 3150 5850
Wire Wire Line
	3200 3400 3150 3400
Connection ~ 3150 3400
Wire Wire Line
	3150 3400 3150 4450
Wire Wire Line
	3200 2400 3150 2400
Connection ~ 3150 2400
Wire Wire Line
	3150 2400 3150 3400
Connection ~ 3150 5850
Wire Wire Line
	3150 5850 5450 5850
Wire Wire Line
	2550 800  4800 800 
Wire Wire Line
	4350 4550 4350 5600
Wire Wire Line
	4350 2500 4350 4550
Connection ~ 4350 4550
Wire Wire Line
	4200 4550 4350 4550
Wire Wire Line
	4200 3500 4500 3500
Wire Wire Line
	4200 2500 4350 2500
Wire Wire Line
	4200 1450 7650 1450
Wire Wire Line
	4800 5700 1900 5700
Wire Wire Line
	5450 2550 5450 3600
Wire Wire Line
	4800 2400 4800 2750
Wire Wire Line
	5500 2750 4800 2750
Connection ~ 4800 2750
Wire Wire Line
	4800 2750 4800 2950
Wire Wire Line
	5450 3600 5450 4550
Wire Wire Line
	4800 3250 4800 3800
Wire Wire Line
	5500 3800 4800 3800
Connection ~ 4800 3800
Wire Wire Line
	4800 3800 4800 4050
Wire Wire Line
	5450 4550 5450 5850
Wire Wire Line
	4800 4350 4800 4750
Wire Wire Line
	5500 4750 4800 4750
Connection ~ 4800 4750
Wire Wire Line
	2550 4650 2550 5550
Wire Wire Line
	4800 4750 4800 5700
$Comp
L Device:D D4
U 1 1 60D24BA2
P 4050 4950
F 0 "D4" V 4004 5030 50  0000 L CNN
F 1 "D" V 4095 5030 50  0000 L CNN
F 2 "Diode_SMD:D_SOD-323_HandSoldering" H 4050 4950 50  0001 C CNN
F 3 "~" H 4050 4950 50  0001 C CNN
	1    4050 4950
	0    1    1    0   
$EndComp
Wire Wire Line
	4050 5100 4050 5200
Wire Wire Line
	4050 5200 3850 5200
Connection ~ 3850 5200
Wire Wire Line
	3850 5200 3850 5350
Wire Wire Line
	4050 4800 4050 4700
Wire Wire Line
	4050 4700 3850 4700
Wire Wire Line
	3850 4550 3850 4700
Wire Wire Line
	3850 4800 3850 4700
Connection ~ 3850 4700
Connection ~ 8200 5300
Wire Wire Line
	7800 5300 7650 5300
Wire Wire Line
	8200 5300 8100 5300
Wire Wire Line
	8200 5400 8200 5300
Wire Wire Line
	8200 5750 8200 5700
$Comp
L power:GND #PWR0107
U 1 1 60F7B224
P 8200 5750
F 0 "#PWR0107" H 8200 5500 50  0001 C CNN
F 1 "GND" H 8205 5577 50  0000 C CNN
F 2 "" H 8200 5750 50  0001 C CNN
F 3 "" H 8200 5750 50  0001 C CNN
	1    8200 5750
	1    0    0    -1  
$EndComp
$Comp
L Device:R R13
U 1 1 60F7A6F1
P 8200 5550
F 0 "R13" H 8130 5504 50  0000 R CNN
F 1 "100k" H 8130 5595 50  0000 R CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 8130 5550 50  0001 C CNN
F 3 "~" H 8200 5550 50  0001 C CNN
	1    8200 5550
	-1   0    0    1   
$EndComp
$Comp
L Device:R R10
U 1 1 60F79B3F
P 7950 5300
F 0 "R10" V 7743 5300 50  0000 C CNN
F 1 "100k" V 7834 5300 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 7880 5300 50  0001 C CNN
F 3 "~" H 7950 5300 50  0001 C CNN
	1    7950 5300
	0    1    1    0   
$EndComp
Wire Wire Line
	7650 5700 7450 5700
Connection ~ 7650 5300
Wire Wire Line
	7650 5300 7650 5700
Wire Wire Line
	6800 5400 7050 5400
Wire Wire Line
	6650 5600 7050 5600
Text HLabel 8400 5300 2    50   Output ~ 0
OUT
NoConn ~ 7050 5200
NoConn ~ 7050 5800
Wire Wire Line
	8200 5300 8400 5300
Wire Wire Line
	7450 5300 7650 5300
$Comp
L Switch:SW_Push_DPDT SW1
U 1 1 5FABEF74
P 7250 5500
F 0 "SW1" H 7250 4975 50  0000 C CNN
F 1 "SW_Push_DPDT" H 7250 5066 50  0000 C CNN
F 2 "CustomLib:DPDT_Toggle" H 7250 5700 50  0001 C CNN
F 3 "~" H 7250 5700 50  0001 C CNN
	1    7250 5500
	-1   0    0    1   
$EndComp
Wire Wire Line
	7650 1450 7650 5300
Connection ~ 6650 5600
Connection ~ 6800 5400
$Comp
L Device:D D5
U 1 1 60D469DD
P 6350 4950
F 0 "D5" V 6304 5030 50  0000 L CNN
F 1 "D" V 6395 5030 50  0000 L CNN
F 2 "Diode_SMD:D_SOD-323_HandSoldering" H 6350 4950 50  0001 C CNN
F 3 "~" H 6350 4950 50  0001 C CNN
	1    6350 4950
	0    1    1    0   
$EndComp
Wire Wire Line
	6350 5100 6350 5200
Wire Wire Line
	6350 5200 6150 5200
Connection ~ 6150 5200
Wire Wire Line
	6150 5200 6150 5300
Wire Wire Line
	6350 4800 6350 4750
Wire Wire Line
	6350 4750 6150 4750
Connection ~ 6150 4750
Wire Wire Line
	6150 4750 6150 4650
$EndSCHEMATC