Audio.bak
EESchema Schematic File Version 4
LIBS:IVL_Watch-cache
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 3
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	5500 1900 6300 1900
Text Label 6750 1900 0    50   ~ 0
Audio_Out_N
Text Label 6750 2000 0    50   ~ 0
Audio_Out_P
$Comp
L Device:C C20
U 1 1 5F0D7586
P 6300 2150
F 0 "C20" H 6415 2196 50  0000 L CNN
F 1 "220pF" H 6415 2105 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 6338 2000 50  0001 C CNN
F 3 "~" H 6300 2150 50  0001 C CNN
	1    6300 2150
	1    0    0    -1  
$EndComp
$Comp
L Device:C C19
U 1 1 5F0D7BBB
P 6300 1750
F 0 "C19" H 6415 1796 50  0000 L CNN
F 1 "220pF" H 6415 1705 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 6338 1600 50  0001 C CNN
F 3 "~" H 6300 1750 50  0001 C CNN
	1    6300 1750
	1    0    0    -1  
$EndComp
Connection ~ 6300 1900
Wire Wire Line
	6300 1900 6750 1900
Wire Wire Line
	6300 2000 6750 2000
Wire Wire Line
	6300 2000 5500 2000
Connection ~ 6300 2000
$Comp
L power:GND #PWR0125
U 1 1 5F0DC518
P 6300 2300
F 0 "#PWR0125" H 6300 2050 50  0001 C CNN
F 1 "GND" H 6305 2127 50  0000 C CNN
F 2 "" H 6300 2300 50  0001 C CNN
F 3 "" H 6300 2300 50  0001 C CNN
	1    6300 2300
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0126
U 1 1 5F0DCB7B
P 6300 1600
F 0 "#PWR0126" H 6300 1350 50  0001 C CNN
F 1 "GND" H 6305 1427 50  0000 C CNN
F 2 "" H 6300 1600 50  0001 C CNN
F 3 "" H 6300 1600 50  0001 C CNN
	1    6300 1600
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR0127
U 1 1 5F0DD159
P 5550 2550
F 0 "#PWR0127" H 5550 2300 50  0001 C CNN
F 1 "GND" H 5555 2377 50  0000 C CNN
F 2 "" H 5550 2550 50  0001 C CNN
F 3 "" H 5550 2550 50  0001 C CNN
	1    5550 2550
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0128
U 1 1 5F0DE13C
P 4800 1000
F 0 "#PWR0128" H 4800 850 50  0001 C CNN
F 1 "+5V" H 4815 1173 50  0000 C CNN
F 2 "" H 4800 1000 50  0001 C CNN
F 3 "" H 4800 1000 50  0001 C CNN
	1    4800 1000
	1    0    0    -1  
$EndComp
Wire Wire Line
	5550 2550 5550 2450
Wire Wire Line
	5550 2450 5500 2450
Wire Wire Line
	4100 1950 3800 1950
Text Label 3800 1950 2    50   ~ 0
Audio_Amp_Gain_Selection
Text Label 7700 3950 2    50   ~ 0
Audio_Amp_Gain_Selection
Wire Wire Line
	7700 3950 8100 3950
$Comp
L Connector_Generic:Conn_01x02 J10
U 1 1 5F0EDCB2
P 8300 3950
F 0 "J10" H 8380 3942 50  0000 L CNN
F 1 "Conn_01x02" H 8380 3851 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 8300 3950 50  0001 C CNN
F 3 "~" H 8300 3950 50  0001 C CNN
	1    8300 3950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0129
U 1 1 5F0EEBD3
P 7700 4050
F 0 "#PWR0129" H 7700 3800 50  0001 C CNN
F 1 "GND" H 7705 3877 50  0000 C CNN
F 2 "" H 7700 4050 50  0001 C CNN
F 3 "" H 7700 4050 50  0001 C CNN
	1    7700 4050
	1    0    0    -1  
$EndComp
Wire Wire Line
	7700 4050 8100 4050
Text Notes 8900 4000 0    50   ~ 0
Gain Selestion - to GND = 12 db
Text Label 7700 4450 2    50   ~ 0
Audio_Amp_Gain_Selection
Wire Wire Line
	7700 4450 8100 4450
$Comp
L Connector_Generic:Conn_01x02 J11
U 1 1 5F0F0285
P 8300 4450
F 0 "J11" H 8380 4442 50  0000 L CNN
F 1 "Conn_01x02" H 8380 4351 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 8300 4450 50  0001 C CNN
F 3 "~" H 8300 4450 50  0001 C CNN
	1    8300 4450
	1    0    0    -1  
$EndComp
Wire Wire Line
	7700 4550 8100 4550
Text Notes 8900 4500 0    50   ~ 0
Gain Selestion - to VDD = 6 db
$Comp
L power:+5V #PWR0130
U 1 1 5F0F062F
P 7700 4550
F 0 "#PWR0130" H 7700 4400 50  0001 C CNN
F 1 "+5V" H 7715 4723 50  0000 C CNN
F 2 "" H 7700 4550 50  0001 C CNN
F 3 "" H 7700 4550 50  0001 C CNN
	1    7700 4550
	-1   0    0    1   
$EndComp
Text Label 7700 4900 2    50   ~ 0
Audio_Amp_Gain_Selection
Wire Wire Line
	7700 4900 8100 4900
$Comp
L Connector_Generic:Conn_01x02 J12
U 1 1 5F0F1EDF
P 8300 4900
F 0 "J12" H 8380 4892 50  0000 L CNN
F 1 "Conn_01x02" H 8380 4801 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 8300 4900 50  0001 C CNN
F 3 "~" H 8300 4900 50  0001 C CNN
	1    8300 4900
	1    0    0    -1  
$EndComp
Wire Wire Line
	7700 5000 8100 5000
Text Notes 8900 4950 0    50   ~ 0
Gain Selestion - to VDD trough 100K resistor = 3 db
$Comp
L power:+5V #PWR0131
U 1 1 5F0F1EE7
P 7700 5350
F 0 "#PWR0131" H 7700 5200 50  0001 C CNN
F 1 "+5V" H 7715 5523 50  0000 C CNN
F 2 "" H 7700 5350 50  0001 C CNN
F 3 "" H 7700 5350 50  0001 C CNN
	1    7700 5350
	-1   0    0    1   
$EndComp
$Comp
L Device:R R38
U 1 1 5F0F2744
P 7700 5150
F 0 "R38" H 7770 5196 50  0000 L CNN
F 1 "100K" H 7770 5105 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 7630 5150 50  0001 C CNN
F 3 "~" H 7700 5150 50  0001 C CNN
	1    7700 5150
	1    0    0    -1  
$EndComp
Wire Wire Line
	7700 5350 7700 5300
Text Label 7700 5700 2    50   ~ 0
Audio_Amp_Gain_Selection
Wire Wire Line
	7700 5700 8100 5700
$Comp
L Connector_Generic:Conn_01x02 J13
U 1 1 5F0F5120
P 8300 5700
F 0 "J13" H 8380 5692 50  0000 L CNN
F 1 "Conn_01x02" H 8380 5601 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 8300 5700 50  0001 C CNN
F 3 "~" H 8300 5700 50  0001 C CNN
	1    8300 5700
	1    0    0    -1  
$EndComp
Wire Wire Line
	7700 5800 8100 5800
Text Notes 8900 5750 0    50   ~ 0
Gain Selestion - to GND trough 100K resistor = 15 db
$Comp
L Device:R R39
U 1 1 5F0F512E
P 7700 5950
F 0 "R39" H 7770 5996 50  0000 L CNN
F 1 "100K" H 7770 5905 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 7630 5950 50  0001 C CNN
F 3 "~" H 7700 5950 50  0001 C CNN
	1    7700 5950
	1    0    0    -1  
$EndComp
Wire Wire Line
	7700 6150 7700 6100
$Comp
L power:GND #PWR0132
U 1 1 5F0F57A2
P 7700 6150
F 0 "#PWR0132" H 7700 5900 50  0001 C CNN
F 1 "GND" H 7705 5977 50  0000 C CNN
F 2 "" H 7700 6150 50  0001 C CNN
F 3 "" H 7700 6150 50  0001 C CNN
	1    7700 6150
	1    0    0    -1  
$EndComp
Text Label 3300 2150 2    50   ~ 0
Audio_Amp_SD_Mode
Wire Notes Line
	6400 3500 6400 7800
Text Notes 8250 3700 0    50   ~ 10
Audio Amp Gain Selection\n
Wire Wire Line
	3300 4500 3700 4500
$Comp
L Connector_Generic:Conn_01x02 J6
U 1 1 5F103318
P 3900 4500
F 0 "J6" H 3980 4492 50  0000 L CNN
F 1 "Conn_01x02" H 3980 4401 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 3900 4500 50  0001 C CNN
F 3 "~" H 3900 4500 50  0001 C CNN
	1    3900 4500
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 4600 3700 4600
Text Notes 4600 4600 0    50   ~ 0
SD Mode - Pullup to „Rsmall“ = 370KOhm\nSelected channel Right
Text Label 3300 4500 2    50   ~ 0
Audio_Amp_SD_Mode
$Comp
L power:+5V #PWR0133
U 1 1 5F104C1A
P 3300 4950
F 0 "#PWR0133" H 3300 4800 50  0001 C CNN
F 1 "+5V" H 3315 5123 50  0000 C CNN
F 2 "" H 3300 4950 50  0001 C CNN
F 3 "" H 3300 4950 50  0001 C CNN
	1    3300 4950
	-1   0    0    1   
$EndComp
$Comp
L Device:R R35
U 1 1 5F104C20
P 3300 4750
F 0 "R35" H 3370 4796 50  0000 L CNN
F 1 "100K" H 3370 4705 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 3230 4750 50  0001 C CNN
F 3 "~" H 3300 4750 50  0001 C CNN
	1    3300 4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 4950 3300 4900
Wire Wire Line
	3300 5300 3700 5300
$Comp
L Connector_Generic:Conn_01x02 J7
U 1 1 5F107F6D
P 3900 5300
F 0 "J7" H 3980 5292 50  0000 L CNN
F 1 "Conn_01x02" H 3980 5201 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 3900 5300 50  0001 C CNN
F 3 "~" H 3900 5300 50  0001 C CNN
	1    3900 5300
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 5400 3700 5400
Text Notes 4550 5400 0    50   ~ 0
SD Mode - Pullup to „Rsmall“ = 1.011 MOhm\nSelected channel Left/2 + Right/2
Text Label 3300 5300 2    50   ~ 0
Audio_Amp_SD_Mode
$Comp
L power:+5V #PWR0134
U 1 1 5F107F76
P 3300 5750
F 0 "#PWR0134" H 3300 5600 50  0001 C CNN
F 1 "+5V" H 3315 5923 50  0000 C CNN
F 2 "" H 3300 5750 50  0001 C CNN
F 3 "" H 3300 5750 50  0001 C CNN
	1    3300 5750
	-1   0    0    1   
$EndComp
$Comp
L Device:R R36
U 1 1 5F107F7C
P 3300 5550
F 0 "R36" H 3370 5596 50  0000 L CNN
F 1 "1M" H 3370 5505 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 3230 5550 50  0001 C CNN
F 3 "~" H 3300 5550 50  0001 C CNN
	1    3300 5550
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 5750 3300 5700
$Comp
L Device:R R37
U 1 1 5F10AB5E
P 3600 2150
F 0 "R37" V 3700 2000 50  0000 C CNN
F 1 "2K" V 3700 2150 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" V 3530 2150 50  0001 C CNN
F 3 "~" H 3600 2150 50  0001 C CNN
	1    3600 2150
	0    1    1    0   
$EndComp
Wire Wire Line
	3750 2150 4100 2150
Text Notes 3900 3900 0    50   ~ 10
SD Selection
Text Notes 2850 2500 0    50   ~ 0
Connectet to LOW = Amp Shutdown\nConnectet to High = Left Channel
Wire Wire Line
	3300 6150 3700 6150
$Comp
L Connector_Generic:Conn_01x02 J8
U 1 1 5F10E9BC
P 3900 6150
F 0 "J8" H 3980 6142 50  0000 L CNN
F 1 "Conn_01x02" H 3980 6051 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 3900 6150 50  0001 C CNN
F 3 "~" H 3900 6150 50  0001 C CNN
	1    3900 6150
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 6250 3700 6250
Text Notes 4550 6250 0    50   ~ 0
SD Mode - High\nSelected channel Left
Text Label 3300 6150 2    50   ~ 0
Audio_Amp_SD_Mode
$Comp
L power:+5V #PWR0135
U 1 1 5F10E9C5
P 3300 6300
F 0 "#PWR0135" H 3300 6150 50  0001 C CNN
F 1 "+5V" H 3315 6473 50  0000 C CNN
F 2 "" H 3300 6300 50  0001 C CNN
F 3 "" H 3300 6300 50  0001 C CNN
	1    3300 6300
	-1   0    0    1   
$EndComp
Wire Wire Line
	3300 6300 3300 6250
Wire Wire Line
	3300 6700 3700 6700
$Comp
L Connector_Generic:Conn_01x02 J9
U 1 1 5F110F0D
P 3900 6700
F 0 "J9" H 3980 6692 50  0000 L CNN
F 1 "Conn_01x02" H 3980 6601 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 3900 6700 50  0001 C CNN
F 3 "~" H 3900 6700 50  0001 C CNN
	1    3900 6700
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 6800 3700 6800
Text Notes 4550 6800 0    50   ~ 0
SD Mode - Low\nAmp Shutdown
Text Label 3300 6700 2    50   ~ 0
Audio_Amp_SD_Mode
Wire Wire Line
	3300 6850 3300 6800
$Comp
L power:GND #PWR0136
U 1 1 5F111E2D
P 3300 6850
F 0 "#PWR0136" H 3300 6600 50  0001 C CNN
F 1 "GND" H 3305 6677 50  0000 C CNN
F 2 "" H 3300 6850 50  0001 C CNN
F 3 "" H 3300 6850 50  0001 C CNN
	1    3300 6850
	1    0    0    -1  
$EndComp
Wire Notes Line
	2300 3500 2300 7800
Wire Notes Line
	2300 3500 11200 3500
Text HLabel 2700 1750 0    50   Input ~ 0
Audio_BCLK
Text HLabel 2700 1850 0    50   Input ~ 0
Audio_DIN
Text HLabel 2700 2050 0    50   Input ~ 0
Audio_LRCLK
Text HLabel 1400 1200 0    50   Input ~ 0
Audio_SDMode
Wire Wire Line
	2700 1750 4100 1750
Wire Wire Line
	2700 1850 4100 1850
Wire Wire Line
	4100 2050 2700 2050
$Comp
L Connector_Generic:Conn_01x02 J5
U 1 1 5F11EDE8
P 1850 1400
F 0 "J5" V 1722 1480 50  0000 L CNN
F 1 "Conn_01x02" V 1813 1480 50  0000 L CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 1850 1400 50  0001 C CNN
F 3 "~" H 1850 1400 50  0001 C CNN
	1    1850 1400
	0    1    1    0   
$EndComp
Wire Wire Line
	1400 1200 1650 1200
Wire Wire Line
	1850 1200 1950 1200
Text Label 8300 1650 2    50   ~ 0
Audio_Out_P
Text Label 8300 1900 2    50   ~ 0
Audio_Out_N
$Comp
L MAX98357AETE_T:MAX98357AETE+T U5
U 1 1 5F0C249C
P 4800 1950
F 0 "U5" H 3900 2750 50  0000 C CNN
F 1 "MAX98357AETE+T" H 4200 2650 50  0000 C CNN
F 2 "x3n0:QFN50P300X300X80-17N" H 6250 2200 50  0001 L BNN
F 3 "https://datasheets.maximintegrated.com/en/ds/MAX98357A-MAX98357B.pdf" H 4800 1950 50  0001 L BNN
F 4 "None" H 6250 2100 50  0001 L BNN "Feld4"
F 5 "Maxim Integrated" H 6250 2300 50  0001 L BNN "Feld5"
F 6 "Unavailable" H 6250 2400 50  0001 L BNN "Feld6"
F 7 "MAX98357AETE+T" H 6250 2500 50  0001 L BNN "Feld7"
F 8 "TQFN-16 Maxim" H 6250 2600 50  0001 L BNN "Feld8"
	1    4800 1950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0137
U 1 1 5F0C5357
P 4800 2950
F 0 "#PWR0137" H 4800 2700 50  0001 C CNN
F 1 "GND" H 4805 2777 50  0000 C CNN
F 2 "" H 4800 2950 50  0001 C CNN
F 3 "" H 4800 2950 50  0001 C CNN
	1    4800 2950
	1    0    0    -1  
$EndComp
Wire Wire Line
	4650 2750 4650 2850
Wire Wire Line
	4650 2850 4800 2850
Wire Wire Line
	4800 2850 4800 2750
Wire Wire Line
	4800 2850 4950 2850
Wire Wire Line
	4950 2850 4950 2750
Connection ~ 4800 2850
Wire Wire Line
	4800 2850 4800 2950
Wire Wire Line
	4750 1150 4750 1050
Wire Wire Line
	4750 1050 4800 1050
Wire Wire Line
	4850 1050 4850 1150
Wire Wire Line
	4800 1000 4800 1050
Connection ~ 4800 1050
Wire Wire Line
	4800 1050 4850 1050
$Comp
L TBL005A-500-02GY-2WT:TBL005A-500-02GY-2WT J14
U 1 1 5F0D55F3
P 9150 1700
F 0 "J14" H 9380 1696 50  0000 L CNN
F 1 "TBL005A-500-02GY-2WT" H 9380 1605 50  0000 L CNN
F 2 "x3n0:CUI_TBL005A-500-02GY-2WT" H 9150 1700 50  0001 L BNN
F 3 "" H 9150 1700 50  0001 L BNN
F 4 "Manufacturer Recommendations" H 9150 1700 50  0001 L BNN "Feld4"
	1    9150 1700
	1    0    0    -1  
$EndComp
Wire Wire Line
	8750 1600 8600 1600
Wire Wire Line
	8600 1600 8600 1650
Wire Wire Line
	8600 1700 8750 1700
Wire Wire Line
	8300 1650 8600 1650
Connection ~ 8600 1650
Wire Wire Line
	8600 1650 8600 1700
Wire Wire Line
	8750 1850 8600 1850
Wire Wire Line
	8600 1850 8600 1900
Wire Wire Line
	8600 1950 8750 1950
Wire Wire Line
	8300 1900 8600 1900
Connection ~ 8600 1900
Wire Wire Line
	8600 1900 8600 1950
Wire Wire Line
	3300 2150 3450 2150
Text Label 2850 1200 0    50   ~ 0
Audio_Amp_SD_Mode
$Comp
L Jumper:SolderJumper_2_Open JP3
U 1 1 5F217D59
P 1800 1050
F 0 "JP3" H 1800 1255 50  0000 C CNN
F 1 "SolderJumper_2_Open" H 1800 1164 50  0000 C CNN
F 2 "" H 1800 1050 50  0001 C CNN
F 3 "~" H 1800 1050 50  0001 C CNN
	1    1800 1050
	1    0    0    -1  
$EndComp
Wire Wire Line
	1650 1050 1650 1200
Connection ~ 1650 1200
Wire Wire Line
	1650 1200 1750 1200
Wire Wire Line
	1950 1050 1950 1200
Connection ~ 1950 1200
Wire Wire Line
	1950 1200 2850 1200
$EndSCHEMATC