EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 22 28
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L dk_Linear-Amplifiers-Instrumentation-OP-Amps-Buffer-Amps:MCP6004-I_P U?
U 1 1 5FFE1551
P 4400 1800
F 0 "U?" H 4744 1853 60  0000 L CNN
F 1 "MCP6004-I_P" H 4744 1747 60  0000 L CNN
F 2 "digikey-footprints:DIP-14_W3mm" H 4600 2000 60  0001 L CNN
F 3 "http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en011705" H 4600 2100 60  0001 L CNN
F 4 "MCP6004-I/P-ND" H 4600 2200 60  0001 L CNN "Digi-Key_PN"
F 5 "MCP6004-I/P" H 4600 2300 60  0001 L CNN "MPN"
F 6 "Integrated Circuits (ICs)" H 4600 2400 60  0001 L CNN "Category"
F 7 "Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps" H 4600 2500 60  0001 L CNN "Family"
F 8 "http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en011705" H 4600 2600 60  0001 L CNN "DK_Datasheet_Link"
F 9 "/product-detail/en/microchip-technology/MCP6004-I-P/MCP6004-I-P-ND/523060" H 4600 2700 60  0001 L CNN "DK_Detail_Page"
F 10 "IC OPAMP GP 4 CIRCUIT 14DIP" H 4600 2800 60  0001 L CNN "Description"
F 11 "Microchip Technology" H 4600 2900 60  0001 L CNN "Manufacturer"
F 12 "Active" H 4600 3000 60  0001 L CNN "Status"
	1    4400 1800
	1    0    0    -1  
$EndComp
$Comp
L dk_Linear-Amplifiers-Instrumentation-OP-Amps-Buffer-Amps:MCP6004-I_P U?
U 2 1 5FFE2715
P 4400 3400
F 0 "U?" H 4744 3453 60  0000 L CNN
F 1 "MCP6004-I_P" H 4744 3347 60  0000 L CNN
F 2 "digikey-footprints:DIP-14_W3mm" H 4600 3600 60  0001 L CNN
F 3 "http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en011705" H 4600 3700 60  0001 L CNN
F 4 "MCP6004-I/P-ND" H 4600 3800 60  0001 L CNN "Digi-Key_PN"
F 5 "MCP6004-I/P" H 4600 3900 60  0001 L CNN "MPN"
F 6 "Integrated Circuits (ICs)" H 4600 4000 60  0001 L CNN "Category"
F 7 "Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps" H 4600 4100 60  0001 L CNN "Family"
F 8 "http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en011705" H 4600 4200 60  0001 L CNN "DK_Datasheet_Link"
F 9 "/product-detail/en/microchip-technology/MCP6004-I-P/MCP6004-I-P-ND/523060" H 4600 4300 60  0001 L CNN "DK_Detail_Page"
F 10 "IC OPAMP GP 4 CIRCUIT 14DIP" H 4600 4400 60  0001 L CNN "Description"
F 11 "Microchip Technology" H 4600 4500 60  0001 L CNN "Manufacturer"
F 12 "Active" H 4600 4600 60  0001 L CNN "Status"
	2    4400 3400
	1    0    0    -1  
$EndComp
$Comp
L dk_Linear-Amplifiers-Instrumentation-OP-Amps-Buffer-Amps:MCP6004-I_P U?
U 3 1 5FFE332B
P 4400 5050
F 0 "U?" H 4744 5103 60  0000 L CNN
F 1 "MCP6004-I_P" H 4744 4997 60  0000 L CNN
F 2 "digikey-footprints:DIP-14_W3mm" H 4600 5250 60  0001 L CNN
F 3 "http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en011705" H 4600 5350 60  0001 L CNN
F 4 "MCP6004-I/P-ND" H 4600 5450 60  0001 L CNN "Digi-Key_PN"
F 5 "MCP6004-I/P" H 4600 5550 60  0001 L CNN "MPN"
F 6 "Integrated Circuits (ICs)" H 4600 5650 60  0001 L CNN "Category"
F 7 "Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps" H 4600 5750 60  0001 L CNN "Family"
F 8 "http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en011705" H 4600 5850 60  0001 L CNN "DK_Datasheet_Link"
F 9 "/product-detail/en/microchip-technology/MCP6004-I-P/MCP6004-I-P-ND/523060" H 4600 5950 60  0001 L CNN "DK_Detail_Page"
F 10 "IC OPAMP GP 4 CIRCUIT 14DIP" H 4600 6050 60  0001 L CNN "Description"
F 11 "Microchip Technology" H 4600 6150 60  0001 L CNN "Manufacturer"
F 12 "Active" H 4600 6250 60  0001 L CNN "Status"
	3    4400 5050
	1    0    0    -1  
$EndComp
$Comp
L dk_Linear-Amplifiers-Instrumentation-OP-Amps-Buffer-Amps:MCP6004-I_P U?
U 4 1 5FFE3E2B
P 4400 6700
F 0 "U?" H 4744 6753 60  0000 L CNN
F 1 "MCP6004-I_P" H 4744 6647 60  0000 L CNN
F 2 "digikey-footprints:DIP-14_W3mm" H 4600 6900 60  0001 L CNN
F 3 "http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en011705" H 4600 7000 60  0001 L CNN
F 4 "MCP6004-I/P-ND" H 4600 7100 60  0001 L CNN "Digi-Key_PN"
F 5 "MCP6004-I/P" H 4600 7200 60  0001 L CNN "MPN"
F 6 "Integrated Circuits (ICs)" H 4600 7300 60  0001 L CNN "Category"
F 7 "Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps" H 4600 7400 60  0001 L CNN "Family"
F 8 "http://www.microchip.com/mymicrochip/filehandler.aspx?ddocname=en011705" H 4600 7500 60  0001 L CNN "DK_Datasheet_Link"
F 9 "/product-detail/en/microchip-technology/MCP6004-I-P/MCP6004-I-P-ND/523060" H 4600 7600 60  0001 L CNN "DK_Detail_Page"
F 10 "IC OPAMP GP 4 CIRCUIT 14DIP" H 4600 7700 60  0001 L CNN "Description"
F 11 "Microchip Technology" H 4600 7800 60  0001 L CNN "Manufacturer"
F 12 "Active" H 4600 7900 60  0001 L CNN "Status"
	4    4400 6700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FFE5F06
P 4400 2050
F 0 "#PWR?" H 4400 1800 50  0001 C CNN
F 1 "GND" H 4405 1877 50  0000 C CNN
F 2 "" H 4400 2050 50  0001 C CNN
F 3 "" H 4400 2050 50  0001 C CNN
	1    4400 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 2000 4400 2050
$Comp
L power:+3.3VA #PWR?
U 1 1 5FFE65A3
P 4400 1550
F 0 "#PWR?" H 4400 1400 50  0001 C CNN
F 1 "+3.3VA" H 4415 1723 50  0000 C CNN
F 2 "" H 4400 1550 50  0001 C CNN
F 3 "" H 4400 1550 50  0001 C CNN
	1    4400 1550
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 1550 4400 1600
$Comp
L Device:R R?
U 1 1 5FFE6C26
P 3700 1700
F 0 "R?" V 3493 1700 50  0000 C CNN
F 1 "100k" V 3584 1700 50  0000 C CNN
F 2 "" V 3630 1700 50  0001 C CNN
F 3 "~" H 3700 1700 50  0001 C CNN
	1    3700 1700
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 5FFE72CB
P 4400 1300
F 0 "R?" V 4193 1300 50  0000 C CNN
F 1 "33k" V 4284 1300 50  0000 C CNN
F 2 "" V 4330 1300 50  0001 C CNN
F 3 "~" H 4400 1300 50  0001 C CNN
	1    4400 1300
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 5FFE75F9
P 3700 1300
F 0 "R?" V 3493 1300 50  0000 C CNN
F 1 "200k" V 3584 1300 50  0000 C CNN
F 2 "" V 3630 1300 50  0001 C CNN
F 3 "~" H 3700 1300 50  0001 C CNN
	1    3700 1300
	0    1    1    0   
$EndComp
Wire Wire Line
	4100 1700 4000 1700
Wire Wire Line
	4000 1700 4000 1300
Wire Wire Line
	4000 1300 4250 1300
Connection ~ 4000 1700
Wire Wire Line
	4000 1700 3850 1700
Wire Wire Line
	4550 1300 4950 1300
Wire Wire Line
	4950 1300 4950 1800
Wire Wire Line
	4950 1800 4700 1800
Wire Wire Line
	4000 1300 3850 1300
Connection ~ 4000 1300
$Comp
L power:GND #PWR?
U 1 1 5FFEA0AE
P 4000 2050
F 0 "#PWR?" H 4000 1800 50  0001 C CNN
F 1 "GND" H 4005 1877 50  0000 C CNN
F 2 "" H 4000 2050 50  0001 C CNN
F 3 "" H 4000 2050 50  0001 C CNN
	1    4000 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	4100 1900 4000 1900
Wire Wire Line
	4000 1900 4000 2050
$Comp
L Device:C C?
U 1 1 5FFEEDF7
P 4400 950
F 0 "C?" V 4148 950 50  0000 C CNN
F 1 "100p" V 4239 950 50  0000 C CNN
F 2 "" H 4438 800 50  0001 C CNN
F 3 "~" H 4400 950 50  0001 C CNN
	1    4400 950 
	0    1    1    0   
$EndComp
Wire Wire Line
	4250 950  4000 950 
Wire Wire Line
	4000 950  4000 1300
Wire Wire Line
	4550 950  4950 950 
Wire Wire Line
	4950 950  4950 1300
Connection ~ 4950 1300
Text GLabel 3500 1300 0    50   Input ~ 0
AREF_-10V
Wire Wire Line
	3500 1300 3550 1300
$Comp
L audiojack2_ground_switch-connector:AudioJack2_Ground_Switch-Connector J?
U 1 1 60000AEA
P 2750 1700
F 0 "J?" H 2755 2042 50  0000 C CNN
F 1 "ATTACK_CV" H 2755 1951 50  0000 C CNN
F 2 "" H 2750 1700 50  0001 C CNN
F 3 "" H 2750 1700 50  0001 C CNN
	1    2750 1700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 600014A2
P 3050 1900
F 0 "#PWR?" H 3050 1650 50  0001 C CNN
F 1 "GND" H 3055 1727 50  0000 C CNN
F 2 "" H 3050 1900 50  0001 C CNN
F 3 "" H 3050 1900 50  0001 C CNN
	1    3050 1900
	1    0    0    -1  
$EndComp
Wire Wire Line
	2950 1600 3050 1600
Wire Wire Line
	3050 1600 3050 1800
Wire Wire Line
	2950 1800 3050 1800
Connection ~ 3050 1800
Wire Wire Line
	3050 1800 3050 1900
Text GLabel 5100 1300 2    50   Input ~ 0
ATTACK_CV_ADC
Wire Wire Line
	5100 1300 4950 1300
$Comp
L power:GND #PWR?
U 1 1 600065D8
P 3200 2100
AR Path="/5F80B3E6/600065D8" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FBF977F/600065D8" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/600065D8" Ref="#PWR?"  Part="1" 
F 0 "#PWR?" H 3200 1850 50  0001 C CNN
F 1 "GND" H 3205 1927 50  0000 C CNN
F 2 "" H 3200 2100 50  0001 C CNN
F 3 "" H 3200 2100 50  0001 C CNN
	1    3200 2100
	1    0    0    -1  
$EndComp
Wire Wire Line
	3200 2050 3200 2100
Wire Wire Line
	3550 1700 3200 1700
Wire Wire Line
	3200 1700 3200 1750
$Comp
L Device:D_TVS D?
U 1 1 600065E1
P 3200 1900
AR Path="/5F80B3E6/5FBF977F/600065E1" Ref="D?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/600065E1" Ref="D?"  Part="1" 
F 0 "D?" V 3154 1980 50  0000 L CNN
F 1 "B72500D0160H060" V 3245 1980 50  0000 L CNN
F 2 "" H 3200 1900 50  0001 C CNN
F 3 "~" H 3200 1900 50  0001 C CNN
	1    3200 1900
	0    1    1    0   
$EndComp
Connection ~ 3200 1700
Wire Wire Line
	2950 1700 3200 1700
$Comp
L power:GND #PWR?
U 1 1 60011C38
P 2100 1200
AR Path="/5F80B3E6/60011C38" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FBF977F/60011C38" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/60011C38" Ref="#PWR?"  Part="1" 
F 0 "#PWR?" H 2100 950 50  0001 C CNN
F 1 "GND" H 2105 1027 50  0000 C CNN
F 2 "" H 2100 1200 50  0001 C CNN
F 3 "" H 2100 1200 50  0001 C CNN
	1    2100 1200
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3VA #PWR?
U 1 1 60011C3E
P 2100 900
AR Path="/5F80B3E6/60011C3E" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FBF977F/60011C3E" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/60011C3E" Ref="#PWR?"  Part="1" 
F 0 "#PWR?" H 2100 750 50  0001 C CNN
F 1 "+3.3VA" H 1900 950 50  0000 C CNN
F 2 "" H 2100 900 50  0001 C CNN
F 3 "" H 2100 900 50  0001 C CNN
	1    2100 900 
	1    0    0    -1  
$EndComp
$Comp
L Device:C C?
U 1 1 60011C44
P 2100 1050
AR Path="/5F80B3E6/5FBF977F/60011C44" Ref="C?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/60011C44" Ref="C?"  Part="1" 
F 0 "C?" H 2215 1096 50  0000 L CNN
F 1 "100n" H 2215 1005 50  0000 L CNN
F 2 "" H 2138 900 50  0001 C CNN
F 3 "~" H 2100 1050 50  0001 C CNN
	1    2100 1050
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 6001686E
P 4400 3650
F 0 "#PWR?" H 4400 3400 50  0001 C CNN
F 1 "GND" H 4405 3477 50  0000 C CNN
F 2 "" H 4400 3650 50  0001 C CNN
F 3 "" H 4400 3650 50  0001 C CNN
	1    4400 3650
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 3600 4400 3650
$Comp
L power:+3.3VA #PWR?
U 1 1 60016875
P 4400 3150
F 0 "#PWR?" H 4400 3000 50  0001 C CNN
F 1 "+3.3VA" H 4415 3323 50  0000 C CNN
F 2 "" H 4400 3150 50  0001 C CNN
F 3 "" H 4400 3150 50  0001 C CNN
	1    4400 3150
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 3150 4400 3200
$Comp
L Device:R R?
U 1 1 6001687C
P 3700 3300
F 0 "R?" V 3493 3300 50  0000 C CNN
F 1 "100k" V 3584 3300 50  0000 C CNN
F 2 "" V 3630 3300 50  0001 C CNN
F 3 "~" H 3700 3300 50  0001 C CNN
	1    3700 3300
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 60016882
P 4400 2900
F 0 "R?" V 4193 2900 50  0000 C CNN
F 1 "33k" V 4284 2900 50  0000 C CNN
F 2 "" V 4330 2900 50  0001 C CNN
F 3 "~" H 4400 2900 50  0001 C CNN
	1    4400 2900
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 60016888
P 3700 2900
F 0 "R?" V 3493 2900 50  0000 C CNN
F 1 "200k" V 3584 2900 50  0000 C CNN
F 2 "" V 3630 2900 50  0001 C CNN
F 3 "~" H 3700 2900 50  0001 C CNN
	1    3700 2900
	0    1    1    0   
$EndComp
Wire Wire Line
	4100 3300 4000 3300
Wire Wire Line
	4000 3300 4000 2900
Wire Wire Line
	4000 2900 4250 2900
Connection ~ 4000 3300
Wire Wire Line
	4000 3300 3850 3300
Wire Wire Line
	4550 2900 4950 2900
Wire Wire Line
	4950 2900 4950 3400
Wire Wire Line
	4950 3400 4700 3400
Wire Wire Line
	4000 2900 3850 2900
Connection ~ 4000 2900
$Comp
L power:GND #PWR?
U 1 1 60016898
P 4000 3650
F 0 "#PWR?" H 4000 3400 50  0001 C CNN
F 1 "GND" H 4005 3477 50  0000 C CNN
F 2 "" H 4000 3650 50  0001 C CNN
F 3 "" H 4000 3650 50  0001 C CNN
	1    4000 3650
	1    0    0    -1  
$EndComp
Wire Wire Line
	4100 3500 4000 3500
Wire Wire Line
	4000 3500 4000 3650
$Comp
L Device:C C?
U 1 1 600168A0
P 4400 2550
F 0 "C?" V 4148 2550 50  0000 C CNN
F 1 "100p" V 4239 2550 50  0000 C CNN
F 2 "" H 4438 2400 50  0001 C CNN
F 3 "~" H 4400 2550 50  0001 C CNN
	1    4400 2550
	0    1    1    0   
$EndComp
Wire Wire Line
	4250 2550 4000 2550
Wire Wire Line
	4000 2550 4000 2900
Wire Wire Line
	4550 2550 4950 2550
Wire Wire Line
	4950 2550 4950 2900
Connection ~ 4950 2900
Text GLabel 3500 2900 0    50   Input ~ 0
AREF_-10V
Wire Wire Line
	3500 2900 3550 2900
$Comp
L audiojack2_ground_switch-connector:AudioJack2_Ground_Switch-Connector J?
U 1 1 600168AD
P 2750 3300
F 0 "J?" H 2755 3642 50  0000 C CNN
F 1 "DECAY_CV" H 2755 3551 50  0000 C CNN
F 2 "" H 2750 3300 50  0001 C CNN
F 3 "" H 2750 3300 50  0001 C CNN
	1    2750 3300
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 600168B3
P 3050 3500
F 0 "#PWR?" H 3050 3250 50  0001 C CNN
F 1 "GND" H 3055 3327 50  0000 C CNN
F 2 "" H 3050 3500 50  0001 C CNN
F 3 "" H 3050 3500 50  0001 C CNN
	1    3050 3500
	1    0    0    -1  
$EndComp
Wire Wire Line
	2950 3200 3050 3200
Wire Wire Line
	3050 3200 3050 3400
Wire Wire Line
	2950 3400 3050 3400
Connection ~ 3050 3400
Wire Wire Line
	3050 3400 3050 3500
Text GLabel 5100 2900 2    50   Input ~ 0
DECAY_CV_ADC
Wire Wire Line
	5100 2900 4950 2900
$Comp
L power:GND #PWR?
U 1 1 600168C0
P 3200 3700
AR Path="/5F80B3E6/600168C0" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FBF977F/600168C0" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/600168C0" Ref="#PWR?"  Part="1" 
F 0 "#PWR?" H 3200 3450 50  0001 C CNN
F 1 "GND" H 3205 3527 50  0000 C CNN
F 2 "" H 3200 3700 50  0001 C CNN
F 3 "" H 3200 3700 50  0001 C CNN
	1    3200 3700
	1    0    0    -1  
$EndComp
Wire Wire Line
	3200 3650 3200 3700
Wire Wire Line
	3550 3300 3200 3300
Wire Wire Line
	3200 3300 3200 3350
$Comp
L Device:D_TVS D?
U 1 1 600168C9
P 3200 3500
AR Path="/5F80B3E6/5FBF977F/600168C9" Ref="D?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/600168C9" Ref="D?"  Part="1" 
F 0 "D?" V 3154 3580 50  0000 L CNN
F 1 "B72500D0160H060" V 3245 3580 50  0000 L CNN
F 2 "" H 3200 3500 50  0001 C CNN
F 3 "~" H 3200 3500 50  0001 C CNN
	1    3200 3500
	0    1    1    0   
$EndComp
Connection ~ 3200 3300
Wire Wire Line
	2950 3300 3200 3300
$Comp
L power:GND #PWR?
U 1 1 6001BC9B
P 4400 5300
F 0 "#PWR?" H 4400 5050 50  0001 C CNN
F 1 "GND" H 4405 5127 50  0000 C CNN
F 2 "" H 4400 5300 50  0001 C CNN
F 3 "" H 4400 5300 50  0001 C CNN
	1    4400 5300
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 5250 4400 5300
$Comp
L power:+3.3VA #PWR?
U 1 1 6001BCA2
P 4400 4800
F 0 "#PWR?" H 4400 4650 50  0001 C CNN
F 1 "+3.3VA" H 4415 4973 50  0000 C CNN
F 2 "" H 4400 4800 50  0001 C CNN
F 3 "" H 4400 4800 50  0001 C CNN
	1    4400 4800
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 4800 4400 4850
$Comp
L Device:R R?
U 1 1 6001BCA9
P 3700 4950
F 0 "R?" V 3493 4950 50  0000 C CNN
F 1 "100k" V 3584 4950 50  0000 C CNN
F 2 "" V 3630 4950 50  0001 C CNN
F 3 "~" H 3700 4950 50  0001 C CNN
	1    3700 4950
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 6001BCAF
P 4400 4550
F 0 "R?" V 4193 4550 50  0000 C CNN
F 1 "33k" V 4284 4550 50  0000 C CNN
F 2 "" V 4330 4550 50  0001 C CNN
F 3 "~" H 4400 4550 50  0001 C CNN
	1    4400 4550
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 6001BCB5
P 3700 4550
F 0 "R?" V 3493 4550 50  0000 C CNN
F 1 "200k" V 3584 4550 50  0000 C CNN
F 2 "" V 3630 4550 50  0001 C CNN
F 3 "~" H 3700 4550 50  0001 C CNN
	1    3700 4550
	0    1    1    0   
$EndComp
Wire Wire Line
	4100 4950 4000 4950
Wire Wire Line
	4000 4950 4000 4550
Wire Wire Line
	4000 4550 4250 4550
Connection ~ 4000 4950
Wire Wire Line
	4000 4950 3850 4950
Wire Wire Line
	4550 4550 4950 4550
Wire Wire Line
	4950 4550 4950 5050
Wire Wire Line
	4950 5050 4700 5050
Wire Wire Line
	4000 4550 3850 4550
Connection ~ 4000 4550
$Comp
L power:GND #PWR?
U 1 1 6001BCC5
P 4000 5300
F 0 "#PWR?" H 4000 5050 50  0001 C CNN
F 1 "GND" H 4005 5127 50  0000 C CNN
F 2 "" H 4000 5300 50  0001 C CNN
F 3 "" H 4000 5300 50  0001 C CNN
	1    4000 5300
	1    0    0    -1  
$EndComp
Wire Wire Line
	4100 5150 4000 5150
Wire Wire Line
	4000 5150 4000 5300
$Comp
L Device:C C?
U 1 1 6001BCCD
P 4400 4200
F 0 "C?" V 4148 4200 50  0000 C CNN
F 1 "100p" V 4239 4200 50  0000 C CNN
F 2 "" H 4438 4050 50  0001 C CNN
F 3 "~" H 4400 4200 50  0001 C CNN
	1    4400 4200
	0    1    1    0   
$EndComp
Wire Wire Line
	4250 4200 4000 4200
Wire Wire Line
	4000 4200 4000 4550
Wire Wire Line
	4550 4200 4950 4200
Wire Wire Line
	4950 4200 4950 4550
Connection ~ 4950 4550
Text GLabel 3500 4550 0    50   Input ~ 0
AREF_-10V
Wire Wire Line
	3500 4550 3550 4550
$Comp
L audiojack2_ground_switch-connector:AudioJack2_Ground_Switch-Connector J?
U 1 1 6001BCDA
P 2750 4950
F 0 "J?" H 2755 5292 50  0000 C CNN
F 1 "SUSTAIN_CV" H 2755 5201 50  0000 C CNN
F 2 "" H 2750 4950 50  0001 C CNN
F 3 "" H 2750 4950 50  0001 C CNN
	1    2750 4950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 6001BCE0
P 3050 5150
F 0 "#PWR?" H 3050 4900 50  0001 C CNN
F 1 "GND" H 3055 4977 50  0000 C CNN
F 2 "" H 3050 5150 50  0001 C CNN
F 3 "" H 3050 5150 50  0001 C CNN
	1    3050 5150
	1    0    0    -1  
$EndComp
Wire Wire Line
	2950 4850 3050 4850
Wire Wire Line
	3050 4850 3050 5050
Wire Wire Line
	2950 5050 3050 5050
Connection ~ 3050 5050
Wire Wire Line
	3050 5050 3050 5150
Text GLabel 5100 4550 2    50   Input ~ 0
SUSTAIN_CV_ADC
Wire Wire Line
	5100 4550 4950 4550
$Comp
L power:GND #PWR?
U 1 1 6001BCED
P 3200 5350
AR Path="/5F80B3E6/6001BCED" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FBF977F/6001BCED" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/6001BCED" Ref="#PWR?"  Part="1" 
F 0 "#PWR?" H 3200 5100 50  0001 C CNN
F 1 "GND" H 3205 5177 50  0000 C CNN
F 2 "" H 3200 5350 50  0001 C CNN
F 3 "" H 3200 5350 50  0001 C CNN
	1    3200 5350
	1    0    0    -1  
$EndComp
Wire Wire Line
	3200 5300 3200 5350
Wire Wire Line
	3550 4950 3200 4950
Wire Wire Line
	3200 4950 3200 5000
$Comp
L Device:D_TVS D?
U 1 1 6001BCF6
P 3200 5150
AR Path="/5F80B3E6/5FBF977F/6001BCF6" Ref="D?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/6001BCF6" Ref="D?"  Part="1" 
F 0 "D?" V 3154 5230 50  0000 L CNN
F 1 "B72500D0160H060" V 3245 5230 50  0000 L CNN
F 2 "" H 3200 5150 50  0001 C CNN
F 3 "~" H 3200 5150 50  0001 C CNN
	1    3200 5150
	0    1    1    0   
$EndComp
Connection ~ 3200 4950
Wire Wire Line
	2950 4950 3200 4950
$Comp
L power:GND #PWR?
U 1 1 6002012D
P 4400 6950
F 0 "#PWR?" H 4400 6700 50  0001 C CNN
F 1 "GND" H 4405 6777 50  0000 C CNN
F 2 "" H 4400 6950 50  0001 C CNN
F 3 "" H 4400 6950 50  0001 C CNN
	1    4400 6950
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 6900 4400 6950
$Comp
L power:+3.3VA #PWR?
U 1 1 60020134
P 4400 6450
F 0 "#PWR?" H 4400 6300 50  0001 C CNN
F 1 "+3.3VA" H 4415 6623 50  0000 C CNN
F 2 "" H 4400 6450 50  0001 C CNN
F 3 "" H 4400 6450 50  0001 C CNN
	1    4400 6450
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 6450 4400 6500
$Comp
L Device:R R?
U 1 1 6002013B
P 3700 6600
F 0 "R?" V 3493 6600 50  0000 C CNN
F 1 "100k" V 3584 6600 50  0000 C CNN
F 2 "" V 3630 6600 50  0001 C CNN
F 3 "~" H 3700 6600 50  0001 C CNN
	1    3700 6600
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 60020141
P 4400 6200
F 0 "R?" V 4193 6200 50  0000 C CNN
F 1 "33k" V 4284 6200 50  0000 C CNN
F 2 "" V 4330 6200 50  0001 C CNN
F 3 "~" H 4400 6200 50  0001 C CNN
	1    4400 6200
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 60020147
P 3700 6200
F 0 "R?" V 3493 6200 50  0000 C CNN
F 1 "200k" V 3584 6200 50  0000 C CNN
F 2 "" V 3630 6200 50  0001 C CNN
F 3 "~" H 3700 6200 50  0001 C CNN
	1    3700 6200
	0    1    1    0   
$EndComp
Wire Wire Line
	4100 6600 4000 6600
Wire Wire Line
	4000 6600 4000 6200
Wire Wire Line
	4000 6200 4250 6200
Connection ~ 4000 6600
Wire Wire Line
	4000 6600 3850 6600
Wire Wire Line
	4550 6200 4950 6200
Wire Wire Line
	4950 6200 4950 6700
Wire Wire Line
	4950 6700 4700 6700
Wire Wire Line
	4000 6200 3850 6200
Connection ~ 4000 6200
$Comp
L power:GND #PWR?
U 1 1 60020157
P 4000 6950
F 0 "#PWR?" H 4000 6700 50  0001 C CNN
F 1 "GND" H 4005 6777 50  0000 C CNN
F 2 "" H 4000 6950 50  0001 C CNN
F 3 "" H 4000 6950 50  0001 C CNN
	1    4000 6950
	1    0    0    -1  
$EndComp
Wire Wire Line
	4100 6800 4000 6800
Wire Wire Line
	4000 6800 4000 6950
$Comp
L Device:C C?
U 1 1 6002015F
P 4400 5850
F 0 "C?" V 4148 5850 50  0000 C CNN
F 1 "100p" V 4239 5850 50  0000 C CNN
F 2 "" H 4438 5700 50  0001 C CNN
F 3 "~" H 4400 5850 50  0001 C CNN
	1    4400 5850
	0    1    1    0   
$EndComp
Wire Wire Line
	4250 5850 4000 5850
Wire Wire Line
	4000 5850 4000 6200
Wire Wire Line
	4550 5850 4950 5850
Wire Wire Line
	4950 5850 4950 6200
Connection ~ 4950 6200
Text GLabel 3500 6200 0    50   Input ~ 0
AREF_-10V
Wire Wire Line
	3500 6200 3550 6200
$Comp
L audiojack2_ground_switch-connector:AudioJack2_Ground_Switch-Connector J?
U 1 1 6002016C
P 2750 6600
F 0 "J?" H 2755 6942 50  0000 C CNN
F 1 "RELEASE_CV" H 2755 6851 50  0000 C CNN
F 2 "" H 2750 6600 50  0001 C CNN
F 3 "" H 2750 6600 50  0001 C CNN
	1    2750 6600
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 60020172
P 3050 6800
F 0 "#PWR?" H 3050 6550 50  0001 C CNN
F 1 "GND" H 3055 6627 50  0000 C CNN
F 2 "" H 3050 6800 50  0001 C CNN
F 3 "" H 3050 6800 50  0001 C CNN
	1    3050 6800
	1    0    0    -1  
$EndComp
Wire Wire Line
	2950 6500 3050 6500
Wire Wire Line
	3050 6500 3050 6700
Wire Wire Line
	2950 6700 3050 6700
Connection ~ 3050 6700
Wire Wire Line
	3050 6700 3050 6800
Text GLabel 5100 6200 2    50   Input ~ 0
RELEASE_CV_ADC
Wire Wire Line
	5100 6200 4950 6200
$Comp
L power:GND #PWR?
U 1 1 6002017F
P 3200 7000
AR Path="/5F80B3E6/6002017F" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FBF977F/6002017F" Ref="#PWR?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/6002017F" Ref="#PWR?"  Part="1" 
F 0 "#PWR?" H 3200 6750 50  0001 C CNN
F 1 "GND" H 3205 6827 50  0000 C CNN
F 2 "" H 3200 7000 50  0001 C CNN
F 3 "" H 3200 7000 50  0001 C CNN
	1    3200 7000
	1    0    0    -1  
$EndComp
Wire Wire Line
	3200 6950 3200 7000
Wire Wire Line
	3550 6600 3200 6600
Wire Wire Line
	3200 6600 3200 6650
$Comp
L Device:D_TVS D?
U 1 1 60020188
P 3200 6800
AR Path="/5F80B3E6/5FBF977F/60020188" Ref="D?"  Part="1" 
AR Path="/5F80B3E6/5FFE0A29/60020188" Ref="D?"  Part="1" 
F 0 "D?" V 3154 6880 50  0000 L CNN
F 1 "B72500D0160H060" V 3245 6880 50  0000 L CNN
F 2 "" H 3200 6800 50  0001 C CNN
F 3 "~" H 3200 6800 50  0001 C CNN
	1    3200 6800
	0    1    1    0   
$EndComp
Connection ~ 3200 6600
Wire Wire Line
	2950 6600 3200 6600
Text Notes 5700 850  0    197  ~ 0
-5 to 5 Volts
$Comp
L Connector:TestPoint TP?
U 1 1 6014B644
P 4950 950
F 0 "TP?" V 4904 1138 50  0000 L CNN
F 1 "TestPoint" V 4995 1138 50  0000 L CNN
F 2 "" H 5150 950 50  0001 C CNN
F 3 "~" H 5150 950 50  0001 C CNN
	1    4950 950 
	0    1    1    0   
$EndComp
Connection ~ 4950 950 
$Comp
L Connector:TestPoint TP?
U 1 1 6014BBB7
P 4950 2550
F 0 "TP?" V 4904 2738 50  0000 L CNN
F 1 "TestPoint" V 4995 2738 50  0000 L CNN
F 2 "" H 5150 2550 50  0001 C CNN
F 3 "~" H 5150 2550 50  0001 C CNN
	1    4950 2550
	0    1    1    0   
$EndComp
Connection ~ 4950 2550
$Comp
L Connector:TestPoint TP?
U 1 1 6014C10B
P 4950 4200
F 0 "TP?" V 4904 4388 50  0000 L CNN
F 1 "TestPoint" V 4995 4388 50  0000 L CNN
F 2 "" H 5150 4200 50  0001 C CNN
F 3 "~" H 5150 4200 50  0001 C CNN
	1    4950 4200
	0    1    1    0   
$EndComp
Connection ~ 4950 4200
$Comp
L Connector:TestPoint TP?
U 1 1 6014C657
P 4950 5850
F 0 "TP?" V 4904 6038 50  0000 L CNN
F 1 "TestPoint" V 4995 6038 50  0000 L CNN
F 2 "" H 5150 5850 50  0001 C CNN
F 3 "~" H 5150 5850 50  0001 C CNN
	1    4950 5850
	0    1    1    0   
$EndComp
Connection ~ 4950 5850
$EndSCHEMATC