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audio-mixer.sch
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EESchema Schematic File Version 4
LIBS:portable-line-mixer-cache
EELAYER 26 0
EELAYER END
$Descr USLegal 8500 14000 portrait
encoding utf-8
Sheet 4 4
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Notes 650 13050 0 60 ~ 0
Each input has jack, pot and summing resistor = 10k\n\n+-5VA = analog +5V, +5VD = digital +5V, (separate regulators)\nGNDREF = global ground
Text Notes 6200 1700 0 60 ~ 0
LEFT
$Comp
L Device:R_Small R16
U 1 1 580B7023
P 5850 1300
F 0 "R16" V 5654 1300 50 0000 C CNN
F 1 "10k" V 5745 1300 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 5780 1300 50 0001 C CNN
F 3 "" H 5850 1300 50 0000 C CNN
1 5850 1300
0 1 1 0
$EndComp
$Comp
L Device:R_Small R17
U 1 1 580B71E8
P 6800 1300
F 0 "R17" V 6550 1300 50 0000 C CNN
F 1 "10k" V 6650 1300 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 6730 1300 50 0001 C CNN
F 3 "" H 6800 1300 50 0000 C CNN
1 6800 1300
0 1 1 0
$EndComp
$Comp
L Device:R_Small R21
U 1 1 580BA60C
P 5850 2350
F 0 "R21" V 5654 2350 50 0000 C CNN
F 1 "10k" V 5745 2350 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 5780 2350 50 0001 C CNN
F 3 "" H 5850 2350 50 0000 C CNN
1 5850 2350
0 1 1 0
$EndComp
$Comp
L Device:R_Small R22
U 1 1 580BC069
P 6800 2350
F 0 "R22" V 6604 2350 50 0000 C CNN
F 1 "10k" V 6695 2350 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 6730 2350 50 0001 C CNN
F 3 "" H 6800 2350 50 0000 C CNN
1 6800 2350
0 1 1 0
$EndComp
$Comp
L Device:R_Small R20
U 1 1 580C1AD0
P 7250 1650
F 0 "R20" V 7054 1650 50 0000 C CNN
F 1 "100R" V 7145 1650 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 7180 1650 50 0001 C CNN
F 3 "" H 7250 1650 50 0000 C CNN
1 7250 1650
0 1 1 0
$EndComp
$Comp
L Device:R_Small R23
U 1 1 580C4B6A
P 7250 2700
F 0 "R23" V 7054 2700 50 0000 C CNN
F 1 "100R" V 7145 2700 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 7180 2700 50 0001 C CNN
F 3 "" H 7250 2700 50 0000 C CNN
1 7250 2700
0 1 1 0
$EndComp
$Comp
L SW-dallas-semi-maxim:DS1882 U7
U 1 1 5AD20D3F
P 2650 1250
F 0 "U7" H 2650 1950 60 0000 C CNN
F 1 "DS1882" H 2650 1800 60 0000 C CNN
F 2 "Package_SSOP:TSSOP-16_4.4x5mm_P0.65mm" H 2550 1350 60 0001 C CNN
F 3 "https://datasheets.maximintegrated.com/en/ds/DS1882.pdf" H 2800 2350 60 0001 C CNN
F 4 "0.00@0" H 2650 0 60 0001 C CNN "Pricing"
F 5 "Dallas Semiconductor / Maxim Integrated" H 2650 150 60 0001 C CNN "Manufacturer"
F 6 "Dual Log Audio Digital Potentiometer" H 2600 2450 60 0001 C CNN "Description"
F 7 "Manufacturer" H 3150 0 60 0001 C CNN "Source"
F 8 "TSSOP, SO" H 2650 2550 60 0001 C CNN "Package ID"
1 2650 1250
1 0 0 -1
$EndComp
Wire Wire Line
3850 1000 3100 1000
$Comp
L power:GNDREF #PWR035
U 1 1 5AD20D4D
P 3200 1700
F 0 "#PWR035" H 3200 1450 50 0001 C CNN
F 1 "GNDREF" H 3200 1550 50 0000 C CNN
F 2 "" H 3200 1700 50 0000 C CNN
F 3 "" H 3200 1700 50 0000 C CNN
1 3200 1700
1 0 0 -1
$EndComp
$Comp
L power:GNDREF #PWR036
U 1 1 5AD20D54
P 2150 1800
F 0 "#PWR036" H 2150 1550 50 0001 C CNN
F 1 "GNDREF" H 2200 1600 50 0000 C CNN
F 2 "" H 2150 1800 50 0000 C CNN
F 3 "" H 2150 1800 50 0000 C CNN
1 2150 1800
1 0 0 -1
$EndComp
$Comp
L power:+5VA #PWR034
U 1 1 5AD20D68
P 3850 800
F 0 "#PWR034" H 3850 650 50 0001 C CNN
F 1 "+5VA" H 3900 1000 50 0000 C CNN
F 2 "" H 3850 800 50 0000 C CNN
F 3 "" H 3850 800 50 0000 C CNN
1 3850 800
1 0 0 -1
$EndComp
$Comp
L power:+5VD #PWR033
U 1 1 5AD20D6E
P 3400 800
F 0 "#PWR033" H 3400 650 50 0001 C CNN
F 1 "+5VD" H 3300 850 50 0000 R CNN
F 2 "" H 3400 800 50 0000 C CNN
F 3 "" H 3400 800 50 0000 C CNN
1 3400 800
1 0 0 -1
$EndComp
Wire Wire Line
3300 1500 3100 1500
$Comp
L Device:C_Small C26
U 1 1 5AD20D87
P 2000 1700
F 0 "C26" V 1750 1700 50 0000 C CNN
F 1 "0u01F" V 1850 1700 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 2038 1550 50 0001 C CNN
F 3 "" H 2000 1700 50 0000 C CNN
1 2000 1700
0 1 1 0
$EndComp
$Comp
L Device:C_Small C21
U 1 1 5AD20D8E
P 3600 850
F 0 "C21" V 3350 850 50 0000 C CNN
F 1 "0u01F" V 3450 850 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 3638 700 50 0001 C CNN
F 3 "" H 3600 850 50 0000 C CNN
1 3600 850
0 1 1 0
$EndComp
$Comp
L Device:C_Small C22
U 1 1 5AD20D9B
P 4100 850
F 0 "C22" V 3850 850 50 0000 C CNN
F 1 "0u01F" V 3950 850 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 4138 700 50 0001 C CNN
F 3 "" H 4100 850 50 0000 C CNN
1 4100 850
0 1 1 0
$EndComp
$Comp
L Device:R_Small R18
U 1 1 5AD20DAD
P 1300 1400
F 0 "R18" V 1050 1400 50 0000 C CNN
F 1 "10k" V 1150 1400 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 1230 1400 50 0001 C CNN
F 3 "" H 1300 1400 50 0000 C CNN
1 1300 1400
0 1 1 0
$EndComp
$Comp
L Device:R_Small R19
U 1 1 5AD20DB6
P 3850 1400
F 0 "R19" V 3930 1400 50 0000 C CNN
F 1 "10k" V 3850 1400 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 3780 1400 50 0001 C CNN
F 3 "" H 3850 1400 50 0000 C CNN
1 3850 1400
0 1 1 0
$EndComp
Text Notes 2450 1800 0 50 ~ 0
Channel 0
Wire Wire Line
750 1600 1300 1600
$Comp
L Device:C_Small C24
U 1 1 5AFD817A
P 1400 1600
F 0 "C24" V 1550 1600 50 0000 C CNN
F 1 "1uF" V 1650 1600 50 0000 C CNN
F 2 "SW-Kemet:Kemet_CAP_2220_5750Metric_D" H 1438 1450 50 0001 C CNN
F 3 "" H 1400 1600 50 0000 C CNN
F 4 "Kemet" H 1400 1600 50 0001 C CNN "Manufacturer"
F 5 "Film Capacitor" H 1400 1600 50 0001 C CNN "Description"
F 6 "0.00@0" H 1400 1600 50 0001 C CNN "Pricing"
F 7 "LDEDD4100KA0N00" H 1400 1600 50 0001 C CNN "Manufacturers Part Number"
1 1400 1600
0 1 1 0
$EndComp
Wire Wire Line
1500 1600 2200 1600
Wire Wire Line
2200 900 2150 900
Wire Wire Line
2150 900 2150 1000
Wire Wire Line
2200 1500 2150 1500
Connection ~ 2150 1500
Wire Wire Line
2150 1500 2150 1700
Wire Wire Line
2200 1300 2150 1300
Connection ~ 2150 1300
Wire Wire Line
2150 1300 2150 1500
Wire Wire Line
2200 1100 2150 1100
Connection ~ 2150 1100
Wire Wire Line
2150 1100 2150 1300
Wire Wire Line
2200 1000 2150 1000
Connection ~ 2150 1000
Wire Wire Line
2150 1000 2150 1100
Wire Wire Line
1850 1200 2200 1200
Wire Wire Line
1850 1200 1850 1700
Wire Wire Line
1200 1400 950 1400
Text Label 950 3950 1 50 ~ 0
L_MIX_BUS
Text Label 650 3750 1 50 ~ 0
L-IN[0..7]
Wire Wire Line
1900 1700 1850 1700
Connection ~ 1850 1700
Wire Wire Line
1850 1700 1850 1950
Wire Wire Line
2100 1700 2150 1700
Connection ~ 2150 1700
Wire Wire Line
2150 1700 2150 1800
Wire Wire Line
3100 900 3400 900
Wire Wire Line
3400 900 3400 850
Wire Wire Line
3850 800 3850 850
Wire Wire Line
3100 1600 3200 1600
Wire Wire Line
3200 1600 3200 1700
Wire Wire Line
3200 1600 3700 1600
Wire Wire Line
3700 1600 3700 850
Connection ~ 3200 1600
Wire Wire Line
3700 1600 4200 1600
Wire Wire Line
4200 1600 4200 850
Connection ~ 3700 1600
Wire Wire Line
3400 850 3500 850
Connection ~ 3400 850
Wire Wire Line
3400 850 3400 800
Wire Wire Line
3850 850 4000 850
Connection ~ 3850 850
Wire Wire Line
3850 850 3850 1000
Wire Wire Line
3100 1300 3200 1300
Wire Wire Line
3200 1300 3200 1600
$Comp
L Device:C_Small C23
U 1 1 5B07B07F
P 3400 1500
F 0 "C23" V 3550 1500 50 0000 C CNN
F 1 "1uF" V 3650 1500 50 0000 C CNN
F 2 "SW-Kemet:Kemet_CAP_2220_5750Metric_D" H 3438 1350 50 0001 C CNN
F 3 "" H 3400 1500 50 0000 C CNN
F 4 "Kemet" H 3400 1500 50 0001 C CNN "Manufacturer"
F 5 "Film Capacitor" H 3400 1500 50 0001 C CNN "Description"
F 6 "0.00@0" H 3400 1500 50 0001 C CNN "Pricing"
F 7 "LDEDD4100KA0N00" H 3400 1500 50 0001 C CNN "Manufacturers Part Number"
1 3400 1500
0 1 1 0
$EndComp
Wire Wire Line
3500 1500 4400 1500
Wire Wire Line
3750 1400 3100 1400
Wire Wire Line
1400 1400 2200 1400
$Comp
L SW-dallas-semi-maxim:DS1882 U8
U 1 1 5B088986
P 2650 2600
F 0 "U8" H 2650 3300 60 0000 C CNN
F 1 "DS1882" H 2650 3150 60 0000 C CNN
F 2 "Package_SSOP:TSSOP-16_4.4x5mm_P0.65mm" H 2550 2700 60 0001 C CNN
F 3 "https://datasheets.maximintegrated.com/en/ds/DS1882.pdf" H 2800 3700 60 0001 C CNN
F 4 "0.00@0" H 2650 1350 60 0001 C CNN "Pricing"
F 5 "Dallas Semiconductor / Maxim Integrated" H 2650 1500 60 0001 C CNN "Manufacturer"
F 6 "Dual Log Audio Digital Potentiometer" H 2600 3800 60 0001 C CNN "Description"
F 7 "Manufacturer" H 3150 1350 60 0001 C CNN "Source"
F 8 "TSSOP, SO" H 2650 3900 60 0001 C CNN "Package ID"
1 2650 2600
1 0 0 -1
$EndComp
Wire Wire Line
3850 2350 3100 2350
$Comp
L power:GNDREF #PWR041
U 1 1 5B08898E
P 3200 3050
F 0 "#PWR041" H 3200 2800 50 0001 C CNN
F 1 "GNDREF" H 3200 2900 50 0000 C CNN
F 2 "" H 3200 3050 50 0000 C CNN
F 3 "" H 3200 3050 50 0000 C CNN
1 3200 3050
1 0 0 -1
$EndComp
$Comp
L power:GNDREF #PWR042
U 1 1 5B088994
P 2150 3150
F 0 "#PWR042" H 2150 2900 50 0001 C CNN
F 1 "GNDREF" H 2200 2950 50 0000 C CNN
F 2 "" H 2150 3150 50 0000 C CNN
F 3 "" H 2150 3150 50 0000 C CNN
1 2150 3150
1 0 0 -1
$EndComp
$Comp
L power:+5VA #PWR038
U 1 1 5B08899A
P 3850 2150
F 0 "#PWR038" H 3850 2000 50 0001 C CNN
F 1 "+5VA" H 3900 2350 50 0000 C CNN
F 2 "" H 3850 2150 50 0000 C CNN
F 3 "" H 3850 2150 50 0000 C CNN
1 3850 2150
1 0 0 -1
$EndComp
$Comp
L power:+5VD #PWR037
U 1 1 5B0889A0
P 3400 2150
F 0 "#PWR037" H 3400 2000 50 0001 C CNN
F 1 "+5VD" H 3300 2200 50 0000 R CNN
F 2 "" H 3400 2150 50 0000 C CNN
F 3 "" H 3400 2150 50 0000 C CNN
1 3400 2150
1 0 0 -1
$EndComp
Wire Wire Line
3300 2850 3100 2850
$Comp
L Device:C_Small C32
U 1 1 5B0889AD
P 2000 3050
F 0 "C32" V 1750 3050 50 0000 C CNN
F 1 "0u01F" V 1850 3050 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 2038 2900 50 0001 C CNN
F 3 "" H 2000 3050 50 0000 C CNN
1 2000 3050
0 1 1 0
$EndComp
$Comp
L Device:C_Small C27
U 1 1 5B0889B4
P 3600 2200
F 0 "C27" V 3350 2200 50 0000 C CNN
F 1 "0u01F" V 3450 2200 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 3638 2050 50 0001 C CNN
F 3 "" H 3600 2200 50 0000 C CNN
1 3600 2200
0 1 1 0
$EndComp
$Comp
L Device:C_Small C28
U 1 1 5B0889BB
P 4100 2200
F 0 "C28" V 3850 2200 50 0000 C CNN
F 1 "0u01F" V 3950 2200 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 4138 2050 50 0001 C CNN
F 3 "" H 4100 2200 50 0000 C CNN
1 4100 2200
0 1 1 0
$EndComp
$Comp
L Device:R_Small R24
U 1 1 5B0889C2
P 1300 2750
F 0 "R24" V 1050 2750 50 0000 C CNN
F 1 "10k" V 1150 2750 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 1230 2750 50 0001 C CNN
F 3 "" H 1300 2750 50 0000 C CNN
1 1300 2750
0 1 1 0
$EndComp
$Comp
L Device:R_Small R25
U 1 1 5B0889C9
P 3850 2750
F 0 "R25" V 3930 2750 50 0000 C CNN
F 1 "10k" V 3850 2750 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 3780 2750 50 0001 C CNN
F 3 "" H 3850 2750 50 0000 C CNN
1 3850 2750
0 1 1 0
$EndComp
Text Notes 2450 3150 0 50 ~ 0
Channel 1
Wire Wire Line
750 2950 1300 2950
$Comp
L Device:C_Small C31
U 1 1 5B0889D7
P 1400 2950
F 0 "C31" V 1550 2950 50 0000 C CNN
F 1 "1uF" V 1650 2950 50 0000 C CNN
F 2 "SW-Kemet:Kemet_CAP_2220_5750Metric_D" H 1438 2800 50 0001 C CNN
F 3 "" H 1400 2950 50 0000 C CNN
F 4 "Kemet" H 1400 2950 50 0001 C CNN "Manufacturer"
F 5 "Film Capacitor" H 1400 2950 50 0001 C CNN "Description"
F 6 "0.00@0" H 1400 2950 50 0001 C CNN "Pricing"
F 7 "LDEDD4100KA0N00" H 1400 2950 50 0001 C CNN "Manufacturers Part Number"
1 1400 2950
0 1 1 0
$EndComp
Wire Wire Line
1500 2950 2200 2950
Wire Wire Line
2200 2250 2150 2250
Wire Wire Line
2150 2250 2150 2350
Wire Wire Line
2200 2850 2150 2850
Connection ~ 2150 2850
Wire Wire Line
2150 2850 2150 3050
Wire Wire Line
2200 2450 2150 2450
Connection ~ 2150 2450
Wire Wire Line
2200 2350 2150 2350
Connection ~ 2150 2350
Wire Wire Line
2150 2350 2150 2450
Wire Wire Line
1850 2550 2200 2550
Wire Wire Line
1850 2550 1850 3050
Wire Wire Line
1200 2750 950 2750
Wire Wire Line
1900 3050 1850 3050
Connection ~ 1850 3050
Wire Wire Line
1850 3050 1850 3300
Wire Wire Line
2100 3050 2150 3050
Connection ~ 2150 3050
Wire Wire Line
2150 3050 2150 3150
Wire Wire Line
3100 2250 3400 2250
Wire Wire Line
3400 2250 3400 2200
Wire Wire Line
3850 2150 3850 2200
Wire Wire Line
3100 2950 3200 2950
Wire Wire Line
3200 2950 3200 3050
Wire Wire Line
3200 2950 3700 2950
Wire Wire Line
3700 2950 3700 2200
Connection ~ 3200 2950
Wire Wire Line
3700 2950 4200 2950
Wire Wire Line
4200 2950 4200 2200
Connection ~ 3700 2950
Wire Wire Line
3400 2200 3500 2200
Connection ~ 3400 2200
Wire Wire Line
3400 2200 3400 2150
Wire Wire Line
3850 2200 4000 2200
Connection ~ 3850 2200
Wire Wire Line
3850 2200 3850 2350
Wire Wire Line
3100 2650 3200 2650
Wire Wire Line
3200 2650 3200 2950
$Comp
L Device:C_Small C30
U 1 1 5B088A0F
P 3400 2850
F 0 "C30" V 3550 2850 50 0000 C CNN
F 1 "1uF" V 3650 2850 50 0000 C CNN
F 2 "SW-Kemet:Kemet_CAP_2220_5750Metric_D" H 3438 2700 50 0001 C CNN
F 3 "" H 3400 2850 50 0000 C CNN
F 4 "Kemet" H 3400 2850 50 0001 C CNN "Manufacturer"
F 5 "Film Capacitor" H 3400 2850 50 0001 C CNN "Description"
F 6 "0.00@0" H 3400 2850 50 0001 C CNN "Pricing"
F 7 "LDEDD4100KA0N00" H 3400 2850 50 0001 C CNN "Manufacturers Part Number"
1 3400 2850
0 1 1 0
$EndComp
Wire Wire Line
3500 2850 4400 2850
Wire Wire Line
3750 2750 3100 2750
Wire Wire Line
1400 2750 2200 2750
Wire Notes Line
2900 3050 2900 3500
$Comp
L SW-dallas-semi-maxim:DS1882 U9
U 1 1 5B09988E
P 2650 3950
F 0 "U9" H 2650 4650 60 0000 C CNN
F 1 "DS1882" H 2650 4500 60 0000 C CNN
F 2 "Package_SSOP:TSSOP-16_4.4x5mm_P0.65mm" H 2550 4050 60 0001 C CNN
F 3 "https://datasheets.maximintegrated.com/en/ds/DS1882.pdf" H 2800 5050 60 0001 C CNN
F 4 "0.00@0" H 2650 2700 60 0001 C CNN "Pricing"
F 5 "Dallas Semiconductor / Maxim Integrated" H 2650 2850 60 0001 C CNN "Manufacturer"
F 6 "Dual Log Audio Digital Potentiometer" H 2600 5150 60 0001 C CNN "Description"
F 7 "Manufacturer" H 3150 2700 60 0001 C CNN "Source"
F 8 "TSSOP, SO" H 2650 5250 60 0001 C CNN "Package ID"
1 2650 3950
1 0 0 -1
$EndComp
Wire Wire Line
3850 3700 3100 3700
$Comp
L power:GNDREF #PWR046
U 1 1 5B099896
P 3200 4400
F 0 "#PWR046" H 3200 4150 50 0001 C CNN
F 1 "GNDREF" H 3200 4250 50 0000 C CNN
F 2 "" H 3200 4400 50 0000 C CNN
F 3 "" H 3200 4400 50 0000 C CNN
1 3200 4400
1 0 0 -1
$EndComp
$Comp
L power:GNDREF #PWR047
U 1 1 5B09989C
P 2150 4500
F 0 "#PWR047" H 2150 4250 50 0001 C CNN
F 1 "GNDREF" H 2200 4300 50 0000 C CNN
F 2 "" H 2150 4500 50 0000 C CNN
F 3 "" H 2150 4500 50 0000 C CNN
1 2150 4500
1 0 0 -1
$EndComp
$Comp
L power:+5VA #PWR044
U 1 1 5B0998A2
P 3850 3500
F 0 "#PWR044" H 3850 3350 50 0001 C CNN
F 1 "+5VA" H 3900 3700 50 0000 C CNN
F 2 "" H 3850 3500 50 0000 C CNN
F 3 "" H 3850 3500 50 0000 C CNN
1 3850 3500
1 0 0 -1
$EndComp
$Comp
L power:+5VD #PWR043
U 1 1 5B0998A8
P 3400 3500
F 0 "#PWR043" H 3400 3350 50 0001 C CNN
F 1 "+5VD" H 3300 3550 50 0000 R CNN
F 2 "" H 3400 3500 50 0000 C CNN
F 3 "" H 3400 3500 50 0000 C CNN
1 3400 3500
1 0 0 -1
$EndComp
Wire Wire Line
3300 4200 3100 4200
$Comp
L Device:C_Small C37
U 1 1 5B0998B5
P 2000 4400
F 0 "C37" V 1750 4400 50 0000 C CNN
F 1 "0u01F" V 1850 4400 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 2038 4250 50 0001 C CNN
F 3 "" H 2000 4400 50 0000 C CNN
1 2000 4400
0 1 1 0
$EndComp
$Comp
L Device:C_Small C33
U 1 1 5B0998BC
P 3600 3550
F 0 "C33" V 3350 3550 50 0000 C CNN
F 1 "0u01F" V 3450 3550 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 3638 3400 50 0001 C CNN
F 3 "" H 3600 3550 50 0000 C CNN
1 3600 3550
0 1 1 0
$EndComp
$Comp
L Device:C_Small C34
U 1 1 5B0998C3
P 4100 3550
F 0 "C34" V 3850 3550 50 0000 C CNN
F 1 "0u01F" V 3950 3550 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 4138 3400 50 0001 C CNN
F 3 "" H 4100 3550 50 0000 C CNN
1 4100 3550
0 1 1 0
$EndComp
$Comp
L Device:R_Small R26
U 1 1 5B0998CA
P 1300 4100
F 0 "R26" V 1050 4100 50 0000 C CNN
F 1 "10k" V 1150 4100 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 1230 4100 50 0001 C CNN
F 3 "" H 1300 4100 50 0000 C CNN
1 1300 4100
0 1 1 0
$EndComp
$Comp
L Device:R_Small R27
U 1 1 5B0998D1
P 3850 4100
F 0 "R27" V 3930 4100 50 0000 C CNN
F 1 "10k" V 3850 4100 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 3780 4100 50 0001 C CNN
F 3 "" H 3850 4100 50 0000 C CNN
1 3850 4100
0 1 1 0
$EndComp
Text Notes 2450 4500 0 50 ~ 0
Channel 2
Wire Wire Line
750 4300 1300 4300
$Comp
L Device:C_Small C36
U 1 1 5B0998DF
P 1400 4300
F 0 "C36" V 1550 4300 50 0000 C CNN
F 1 "1uF" V 1650 4300 50 0000 C CNN
F 2 "SW-Kemet:Kemet_CAP_2220_5750Metric_D" H 1438 4150 50 0001 C CNN
F 3 "" H 1400 4300 50 0000 C CNN
F 4 "Kemet" H 1400 4300 50 0001 C CNN "Manufacturer"
F 5 "Film Capacitor" H 1400 4300 50 0001 C CNN "Description"
F 6 "0.00@0" H 1400 4300 50 0001 C CNN "Pricing"
F 7 "LDEDD4100KA0N00" H 1400 4300 50 0001 C CNN "Manufacturers Part Number"
1 1400 4300
0 1 1 0
$EndComp
Wire Wire Line
1500 4300 2200 4300
Wire Wire Line
2200 3600 2150 3600
Wire Wire Line
2150 3600 2150 3700
Wire Wire Line
2200 4200 2150 4200
Connection ~ 2150 4200
Wire Wire Line
2150 4200 2150 4400
Wire Wire Line
2200 4000 2150 4000
Wire Wire Line
2150 4000 2150 4200
Wire Wire Line
2200 3700 2150 3700
Wire Wire Line
1850 3900 2200 3900
Wire Wire Line
1850 3900 1850 4400
Wire Wire Line
1200 4100 950 4100
Wire Wire Line
1900 4400 1850 4400
Connection ~ 1850 4400
Wire Wire Line
1850 4400 1850 4650
Wire Wire Line
2100 4400 2150 4400
Connection ~ 2150 4400
Wire Wire Line
2150 4400 2150 4500
Wire Wire Line
3100 3600 3400 3600
Wire Wire Line
3400 3600 3400 3550
Wire Wire Line
3850 3500 3850 3550
Wire Wire Line
3100 4300 3200 4300
Wire Wire Line
3200 4300 3200 4400
Wire Wire Line
3200 4300 3700 4300
Wire Wire Line
3700 4300 3700 3550
Connection ~ 3200 4300
Wire Wire Line
3700 4300 4200 4300
Wire Wire Line
4200 4300 4200 3550
Connection ~ 3700 4300
Wire Wire Line
3400 3550 3500 3550
Connection ~ 3400 3550
Wire Wire Line
3400 3550 3400 3500
Wire Wire Line
3850 3550 4000 3550
Connection ~ 3850 3550
Wire Wire Line
3850 3550 3850 3700
Wire Wire Line
3100 4000 3200 4000
Wire Wire Line
3200 4000 3200 4300
$Comp
L Device:C_Small C35
U 1 1 5B099917
P 3400 4200
F 0 "C35" V 3550 4200 50 0000 C CNN
F 1 "1uF" V 3650 4200 50 0000 C CNN
F 2 "SW-Kemet:Kemet_CAP_2220_5750Metric_D" H 3438 4050 50 0001 C CNN
F 3 "" H 3400 4200 50 0000 C CNN
F 4 "Kemet" H 3400 4200 50 0001 C CNN "Manufacturer"
F 5 "Film Capacitor" H 3400 4200 50 0001 C CNN "Description"
F 6 "0.00@0" H 3400 4200 50 0001 C CNN "Pricing"
F 7 "LDEDD4100KA0N00" H 3400 4200 50 0001 C CNN "Manufacturers Part Number"
1 3400 4200
0 1 1 0
$EndComp
Wire Wire Line
3500 4200 4400 4200
Wire Wire Line
3750 4100 3100 4100
Wire Wire Line
1400 4100 2200 4100
Wire Notes Line
2900 4400 2900 4850
$Comp
L SW-dallas-semi-maxim:DS1882 U10
U 1 1 5B0A303E
P 2650 5300
F 0 "U10" H 2650 6000 60 0000 C CNN
F 1 "DS1882" H 2650 5850 60 0000 C CNN
F 2 "Package_SSOP:TSSOP-16_4.4x5mm_P0.65mm" H 2550 5400 60 0001 C CNN
F 3 "https://datasheets.maximintegrated.com/en/ds/DS1882.pdf" H 2800 6400 60 0001 C CNN
F 4 "0.00@0" H 2650 4050 60 0001 C CNN "Pricing"
F 5 "Dallas Semiconductor / Maxim Integrated" H 2650 4200 60 0001 C CNN "Manufacturer"
F 6 "Dual Log Audio Digital Potentiometer" H 2600 6500 60 0001 C CNN "Description"
F 7 "Manufacturer" H 3150 4050 60 0001 C CNN "Source"
F 8 "TSSOP, SO" H 2650 6600 60 0001 C CNN "Package ID"
1 2650 5300
1 0 0 -1
$EndComp
Wire Wire Line
3850 5050 3100 5050
$Comp
L power:GNDREF #PWR051
U 1 1 5B0A3046
P 3200 5750
F 0 "#PWR051" H 3200 5500 50 0001 C CNN
F 1 "GNDREF" H 3200 5600 50 0000 C CNN
F 2 "" H 3200 5750 50 0000 C CNN
F 3 "" H 3200 5750 50 0000 C CNN
1 3200 5750
1 0 0 -1
$EndComp
$Comp
L power:GNDREF #PWR052
U 1 1 5B0A304C
P 2150 5850
F 0 "#PWR052" H 2150 5600 50 0001 C CNN
F 1 "GNDREF" H 2200 5650 50 0000 C CNN
F 2 "" H 2150 5850 50 0000 C CNN
F 3 "" H 2150 5850 50 0000 C CNN
1 2150 5850
1 0 0 -1
$EndComp
$Comp
L power:+5VA #PWR049
U 1 1 5B0A3052
P 3850 4850
F 0 "#PWR049" H 3850 4700 50 0001 C CNN
F 1 "+5VA" H 3900 5050 50 0000 C CNN
F 2 "" H 3850 4850 50 0000 C CNN
F 3 "" H 3850 4850 50 0000 C CNN
1 3850 4850
1 0 0 -1
$EndComp
$Comp
L power:+5VD #PWR048
U 1 1 5B0A3058
P 3400 4850
F 0 "#PWR048" H 3400 4700 50 0001 C CNN
F 1 "+5VD" H 3300 4900 50 0000 R CNN
F 2 "" H 3400 4850 50 0000 C CNN
F 3 "" H 3400 4850 50 0000 C CNN
1 3400 4850
1 0 0 -1
$EndComp
Wire Wire Line
3300 5550 3100 5550
$Comp
L Device:C_Small C42
U 1 1 5B0A3065
P 2000 5750
F 0 "C42" V 1750 5750 50 0000 C CNN
F 1 "0u01F" V 1850 5750 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 2038 5600 50 0001 C CNN
F 3 "" H 2000 5750 50 0000 C CNN
1 2000 5750
0 1 1 0
$EndComp
$Comp
L Device:C_Small C38
U 1 1 5B0A306C
P 3600 4900
F 0 "C38" V 3350 4900 50 0000 C CNN
F 1 "0u01F" V 3450 4900 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 3638 4750 50 0001 C CNN
F 3 "" H 3600 4900 50 0000 C CNN
1 3600 4900
0 1 1 0
$EndComp
$Comp
L Device:C_Small C39
U 1 1 5B0A3073
P 4100 4900
F 0 "C39" V 3850 4900 50 0000 C CNN
F 1 "0u01F" V 3950 4900 50 0000 C CNN
F 2 "Capacitor_SMD:C_1206_3216Metric_Pad1.24x1.80mm_HandSolder" H 4138 4750 50 0001 C CNN
F 3 "" H 4100 4900 50 0000 C CNN
1 4100 4900
0 1 1 0
$EndComp
$Comp
L Device:R_Small R28
U 1 1 5B0A307A
P 1300 5450
F 0 "R28" V 1050 5450 50 0000 C CNN
F 1 "10k" V 1150 5450 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 1230 5450 50 0001 C CNN
F 3 "" H 1300 5450 50 0000 C CNN
1 1300 5450
0 1 1 0
$EndComp
$Comp
L Device:R_Small R29
U 1 1 5B0A3081
P 3850 5450
F 0 "R29" V 3930 5450 50 0000 C CNN
F 1 "10k" V 3850 5450 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder" V 3780 5450 50 0001 C CNN
F 3 "" H 3850 5450 50 0000 C CNN
1 3850 5450
0 1 1 0
$EndComp
Text Notes 2450 5850 0 50 ~ 0
Channel 3
Wire Wire Line
750 5650 1300 5650
$Comp
L Device:C_Small C41
U 1 1 5B0A308F
P 1400 5650
F 0 "C41" V 1550 5650 50 0000 C CNN
F 1 "1uF" V 1650 5650 50 0000 C CNN
F 2 "SW-Kemet:Kemet_CAP_2220_5750Metric_D" H 1438 5500 50 0001 C CNN
F 3 "" H 1400 5650 50 0000 C CNN
F 4 "Kemet" H 1400 5650 50 0001 C CNN "Manufacturer"
F 5 "Film Capacitor" H 1400 5650 50 0001 C CNN "Description"
F 6 "0.00@0" H 1400 5650 50 0001 C CNN "Pricing"
F 7 "LDEDD4100KA0N00" H 1400 5650 50 0001 C CNN "Manufacturers Part Number"
1 1400 5650
0 1 1 0
$EndComp
Wire Wire Line
1500 5650 2200 5650
Wire Wire Line
2200 4950 2150 4950
Wire Wire Line
2150 4950 2150 5050
Wire Wire Line
2200 5550 2150 5550
Wire Wire Line
2150 5550 2150 5750
Wire Wire Line
2200 5050 2150 5050
Connection ~ 2150 5050
Wire Wire Line
1850 5250 2200 5250
Wire Wire Line
1850 5250 1850 5750
Wire Wire Line
1200 5450 950 5450
Wire Wire Line
1900 5750 1850 5750
Connection ~ 1850 5750
Wire Wire Line
1850 5750 1850 6000
Wire Wire Line
2100 5750 2150 5750
Connection ~ 2150 5750
Wire Wire Line
2150 5750 2150 5850
Wire Wire Line
3100 4950 3400 4950
Wire Wire Line
3400 4950 3400 4900
Wire Wire Line
3850 4850 3850 4900
Wire Wire Line
3100 5650 3200 5650
Wire Wire Line
3200 5650 3200 5750
Wire Wire Line
3200 5650 3700 5650
Wire Wire Line
3700 5650 3700 4900
Connection ~ 3200 5650
Wire Wire Line
3700 5650 4200 5650
Wire Wire Line
4200 5650 4200 4900
Connection ~ 3700 5650
Wire Wire Line
3400 4900 3500 4900
Connection ~ 3400 4900
Wire Wire Line
3400 4900 3400 4850
Wire Wire Line
3850 4900 4000 4900
Connection ~ 3850 4900
Wire Wire Line
3850 4900 3850 5050
Wire Wire Line
3100 5350 3200 5350
Wire Wire Line
3200 5350 3200 5650
$Comp
L Device:C_Small C40
U 1 1 5B0A30C7
P 3400 5550
F 0 "C40" V 3550 5550 50 0000 C CNN
F 1 "1uF" V 3650 5550 50 0000 C CNN
F 2 "SW-Kemet:Kemet_CAP_2220_5750Metric_D" H 3438 5400 50 0001 C CNN
F 3 "" H 3400 5550 50 0000 C CNN
F 4 "Kemet" H 3400 5550 50 0001 C CNN "Manufacturer"
F 5 "Film Capacitor" H 3400 5550 50 0001 C CNN "Description"
F 6 "0.00@0" H 3400 5550 50 0001 C CNN "Pricing"
F 7 "LDEDD4100KA0N00" H 3400 5550 50 0001 C CNN "Manufacturers Part Number"
1 3400 5550
0 1 1 0
$EndComp
Wire Wire Line