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path: root/audio_in.sch
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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:dr-audio
LIBS:stm32
LIBS:dr-power
LIBS:dr-usb
LIBS:dr-mechanical
LIBS:dr-logic
LIBS:samdac-cache
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 5
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
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F 3 "" H 6600 1200 60  0000 C CNN
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$EndComp
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F 2 "Housings_QFP:TQFP-48_7x7mm_Pitch0.5mm" H 3300 2100 60  0001 C CNN
F 3 "" H 3300 2100 60  0000 C CNN
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$EndComp
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U 1 1 56C09904
P 2850 6450
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F 2 "digitalscurf:FXO-7x5mm" H 2850 6450 60  0001 C CNN
F 3 "" H 2850 6450 60  0000 C CNN
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	-1   0    0    -1  
$EndComp
$Comp
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F 3 "" H 4450 6450 60  0000 C CNN
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	1    0    0    -1  
$EndComp
$Comp
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F 2 "TO_SOT_Packages_SMD:SOT-23-5" H 7100 5000 60  0001 C CNN
F 3 "" H 7100 5000 60  0000 C CNN
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$EndComp
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Wire Wire Line
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F 0 "#PWR21" H 6050 4900 50  0001 C CNN
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F 3 "" H 6050 5150 50  0000 C CNN
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Wire Wire Line
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$Comp
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F 3 "" H 6050 4600 50  0000 C CNN
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$EndComp
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$EndComp
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Wire Wire Line
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$EndComp
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Wire Wire Line
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$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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F 3 "" H 6050 6350 50  0000 C CNN
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$EndComp
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L +5V #PWR22
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P 6050 5800
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F 1 "+5V" H 6068 5974 50  0000 C CNN
F 2 "" H 6050 5800 50  0000 C CNN
F 3 "" H 6050 5800 50  0000 C CNN
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$EndComp
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$EndComp
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F 3 "" H 7650 6100 50  0000 C CNN
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$EndComp
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3v3-SRC
Text Label 7850 5850 0    60   ~ 0
1v8-SRC
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connect BGND to AGND,\nnot direct to GND plane
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$EndComp
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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F 3 "" H 8150 6100 50  0000 C CNN
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$EndComp
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Wire Wire Line
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Wire Wire Line
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F 3 "" H 8050 4900 50  0000 C CNN
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	1    0    0    -1  
$EndComp
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F 3 "" H 8450 4900 50  0000 C CNN
	1    8450 4900
	1    0    0    -1  
$EndComp
$Comp
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F 3 "" H 8900 4900 50  0000 C CNN
	1    8900 4900
	1    0    0    -1  
$EndComp
$Comp
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F 3 "" H 9300 4900 50  0000 C CNN
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 8900 5150
Wire Wire Line
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Connection ~ 9300 5150
Wire Wire Line
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Text Label 10150 4650 0    60   ~ 0
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L FILTER FB2
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P 9700 4650
F 0 "FB2" H 9700 4891 50  0000 C CNN
F 1 "FILTER" H 9700 4799 50  0000 C CNN
F 2 "Resistors_SMD:R_0805" H 9700 4650 50  0001 C CNN
F 3 "" H 9700 4650 50  0000 C CNN
	1    9700 4650
	1    0    0    -1  
$EndComp
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L C C27
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P 10150 4900
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F 1 "10uF" H 10265 4854 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805" H 10188 4750 50  0001 C CNN
F 3 "" H 10150 4900 50  0000 C CNN
	1    10150 4900
	1    0    0    -1  
$EndComp
$Comp
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P 10550 4900
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F 3 "" H 10550 4900 50  0000 C CNN
	1    10550 4900
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$EndComp
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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F 2 "" H 5250 1450 50  0000 C CNN
F 3 "" H 5250 1450 50  0000 C CNN
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	1    0    0    -1  
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F 3 "" H 5800 1800 50  0000 C CNN
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	1    0    0    -1  
$EndComp
Text Label 5550 1300 0    60   ~ 0
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$EndComp
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	0    1    1    0   
$EndComp
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F 3 "" H 4850 1400 50  0000 C CNN
	1    4850 1400
	0    -1   -1   0   
$EndComp
$Comp
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F 1 "GND" V 4858 1672 50  0000 R CNN
F 2 "" H 4850 1800 50  0000 C CNN
F 3 "" H 4850 1800 50  0000 C CNN
	1    4850 1800
	0    -1   -1   0   
$EndComp
Wire Wire Line
	4850 1400 4700 1400
Wire Wire Line
	4850 1800 4700 1800
Wire Wire Line
	4400 1800 4100 1800
Wire Wire Line
	4400 1400 4100 1400
$Comp
L R R2
U 1 1 56C6E814
P 6000 2250
F 0 "R2" H 6070 2296 50  0000 L CNN
F 1 "75R" H 6070 2204 50  0000 L CNN
F 2 "Resistors_SMD:R_0805" V 5930 2250 50  0001 C CNN
F 3 "" H 6000 2250 50  0000 C CNN
	1    6000 2250
	1    0    0    -1  
$EndComp
Connection ~ 6000 2000
Wire Wire Line
	6000 2400 6000 2500
$Comp
L GND #PWR19
U 1 1 56C6EA4D
P 6000 2500
F 0 "#PWR19" H 6000 2250 50  0001 C CNN
F 1 "GND" H 6008 2326 50  0000 C CNN
F 2 "" H 6000 2500 50  0000 C CNN
F 3 "" H 6000 2500 50  0000 C CNN
	1    6000 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	4100 1300 4300 1300
Wire Wire Line
	4300 1300 4300 2000
$Comp
L C C19
U 1 1 56C6EFB9
P 5400 2000
F 0 "C19" V 5147 2000 50  0000 C CNN
F 1 "100nF" V 5239 2000 50  0000 C CNN
F 2 "Capacitors_SMD:C_0805" H 5438 1850 50  0001 C CNN
F 3 "" H 5400 2000 50  0000 C CNN
	1    5400 2000
	0    1    1    0   
$EndComp
NoConn ~ 4100 3400
NoConn ~ 4100 3300
NoConn ~ 4100 3200
NoConn ~ 4100 3100
NoConn ~ 4100 3000
Wire Wire Line
	4100 3550 4800 3550
$Comp
L R R6
U 1 1 56C7A778
P 4800 3400
F 0 "R6" H 4870 3446 50  0000 L CNN
F 1 "10K" H 4870 3354 50  0000 L CNN
F 2 "Resistors_SMD:R_0805" V 4730 3400 50  0001 C CNN
F 3 "" H 4800 3400 50  0000 C CNN
	1    4800 3400
	1    0    0    -1  
$EndComp
Wire Wire Line
	4800 3250 4800 3200
Wire Wire Line
	4800 3200 5150 3200
Text Label 4900 3200 0    60   ~ 0
3v3-SRC
Wire Wire Line
	4100 3650 5000 3650
Wire Wire Line
	4100 3750 5000 3750
Text HLabel 5000 3650 2    60   BiDi ~ 0
SCL
Text HLabel 5000 3750 2    60   BiDi ~ 0
SDA
Wire Wire Line
	4100 3850 4450 3850
Wire Wire Line
	4450 3850 4450 4050
Wire Wire Line
	4100 3950 4450 3950
Connection ~ 4450 3950
$Comp
L GND #PWR14
U 1 1 56C7AC2E
P 4450 4050
F 0 "#PWR14" H 4450 3800 50  0001 C CNN
F 1 "GND" H 4458 3876 50  0000 C CNN
F 2 "" H 4450 4050 50  0000 C CNN
F 3 "" H 4450 4050 50  0000 C CNN
	1    4450 4050
	1    0    0    -1  
$EndComp
Wire Wire Line
	1900 2600 2600 2600
Text HLabel 1900 2600 0    60   Output ~ 0
~INT
NoConn ~ 2600 2500
NoConn ~ 2600 2400
NoConn ~ 2600 2300
NoConn ~ 2600 2200
Wire Wire Line
	4100 2800 5250 2800
$Comp
L R R5
U 1 1 56C7CB4F
P 4800 2650
F 0 "R5" H 4870 2696 50  0000 L CNN
F 1 "10K" H 4870 2604 50  0000 L CNN
F 2 "Resistors_SMD:R_0805" V 4730 2650 50  0001 C CNN
F 3 "" H 4800 2650 50  0000 C CNN
	1    4800 2650
	1    0    0    -1  
$EndComp
Wire Wire Line
	4800 2500 4800 2450
Wire Wire Line
	4800 2450 5150 2450
$Comp
L C C29
U 1 1 56C7CC29
P 4450 2950
F 0 "C29" H 4565 2996 50  0000 L CNN
F 1 "100nF" H 4565 2904 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805" H 4488 2800 50  0001 C CNN
F 3 "" H 4450 2950 50  0000 C CNN
	1    4450 2950
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR13
U 1 1 56C7CC82
P 4450 3100
F 0 "#PWR13" H 4450 2850 50  0001 C CNN
F 1 "GND" H 4458 2926 50  0000 C CNN
F 2 "" H 4450 3100 50  0000 C CNN
F 3 "" H 4450 3100 50  0000 C CNN
	1    4450 3100
	1    0    0    -1  
$EndComp
Connection ~ 4450 2800
Text Label 4850 2450 0    60   ~ 0
3v3-SRC
Connection ~ 4800 2800
Text HLabel 5250 2800 2    60   Input ~ 0
~RST
Wire Wire Line
	4100 2700 4350 2700
$Comp
L R R4
U 1 1 56C7DD95
P 2100 2450
F 0 "R4" H 2170 2496 50  0000 L CNN
F 1 "10K" H 2170 2404 50  0000 L CNN
F 2 "Resistors_SMD:R_0805" V 2030 2450 50  0001 C CNN
F 3 "" H 2100 2450 50  0000 C CNN
	1    2100 2450
	1    0    0    -1  
$EndComp
Wire Wire Line
	2100 2300 2100 2250
Wire Wire Line
	2100 2250 1850 2250
Text Label 1900 2250 0    60   ~ 0
3v3-SRC
Connection ~ 2100 2600
Text HLabel 4350 2700 2    60   Output ~ 0
~RDY
Wire Wire Line
	4100 2500 4350 2500
Text HLabel 4350 2500 2    60   Input ~ 0
MUTE
NoConn ~ 4100 2600
Wire Wire Line
	4100 2400 4350 2400
Text Label 4150 2400 0    60   ~ 0
MCLK
NoConn ~ 4100 2200
Wire Wire Line
	4100 2100 4350 2100
Text Label 4150 2100 0    60   ~ 0
RXCKI
Text Label 4150 1400 0    60   ~ 0
RX1-
Text Label 4150 1800 0    60   ~ 0
RX3-
Text Label 4700 2000 0    60   ~ 0
RX1+
Text Label 4700 1700 0    60   ~ 0
RX3+
Text Label 6000 1850 0    60   ~ 0
COAX
Text Label 4250 3550 0    60   ~ 0
CPM
Wire Wire Line
	4950 6000 5100 6000
Text Label 4950 6000 0    60   ~ 0
RXCKI
Wire Wire Line
	3350 6000 3950 6000
Text Label 3450 6000 0    60   ~ 0
3v3-SRC
Wire Wire Line
	3600 6300 3600 6400
$Comp
L GND #PWR12
U 1 1 56C7CF06
P 3600 6400
F 0 "#PWR12" H 3600 6150 50  0001 C CNN
F 1 "GND" H 3608 6226 50  0000 C CNN
F 2 "" H 3600 6400 50  0000 C CNN
F 3 "" H 3600 6400 50  0000 C CNN
	1    3600 6400
	1    0    0    -1  
$EndComp
Wire Wire Line
	2350 6000 2000 6000
Text Label 2050 6000 0    60   ~ 0
MCLK
NoConn ~ 4950 6250
NoConn ~ 2350 6250
$Comp
L C C30
U 1 1 56C7DB8B
P 3450 6150
F 0 "C30" H 3565 6196 50  0000 L CNN
F 1 "10nF" H 3565 6104 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805" H 3488 6000 50  0001 C CNN
F 3 "" H 3450 6150 50  0000 C CNN
	1    3450 6150
	1    0    0    -1  
$EndComp
$Comp
L C C31
U 1 1 56C7DC51
P 3850 6150
F 0 "C31" H 3965 6196 50  0000 L CNN
F 1 "10nF" H 3965 6104 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805" H 3888 6000 50  0001 C CNN
F 3 "" H 3850 6150 50  0000 C CNN
	1    3850 6150
	1    0    0    -1  
$EndComp
Wire Wire Line
	3950 6250 3900 6250
Wire Wire Line
	3900 6250 3900 6300
Wire Wire Line
	3900 6300 3400 6300
Wire Wire Line
	3400 6300 3400 6250
Wire Wire Line
	3400 6250 3350 6250
Connection ~ 3450 6300
Connection ~ 3600 6300
Connection ~ 3850 6300
Connection ~ 3450 6000
Connection ~ 3850 6000
Wire Wire Line
	5450 1700 5450 1500
Wire Wire Line
	5450 1500 5550 1500
$Comp
L R R7
U 1 1 56C811BB
P 5700 1500
F 0 "R7" V 5800 1500 50  0000 C CNN
F 1 "0R" V 5900 1500 50  0000 C CNN
F 2 "Resistors_SMD:R_0805" V 5630 1500 50  0001 C CNN
F 3 "" H 5700 1500 50  0000 C CNN
	1    5700 1500
	0    1    1    0   
$EndComp
Text Label 5900 1500 0    60   ~ 0
TOSLINK
Wire Wire Line
	2600 1700 2150 1700
Wire Wire Line
	2600 1800 2150 1800
Wire Wire Line
	2600 2000 2150 2000
NoConn ~ 2600 1900
NoConn ~ 2600 1500
NoConn ~ 2600 1400
NoConn ~ 2600 1300
NoConn ~ 2600 1200
NoConn ~ 4100 1500
NoConn ~ 4100 1600
NoConn ~ 4100 1900
NoConn ~ 4100 2000
Wire Wire Line
	4100 1200 4300 1200
Wire Wire Line
	4300 1200 4300 1000
Wire Wire Line
	4300 1000 4500 1000
Text HLabel 4500 1000 2    60   Output ~ 0
~LOCK
Text HLabel 2150 1700 0    60   Output ~ 0
BCK
Text HLabel 2150 1800 0    60   Output ~ 0
LRCK
Text HLabel 2150 2000 0    60   Output ~ 0
SDAT
Text Notes 2300 6900 0    60   ~ 0
These power oscillators are both powered from the 3.3v\nsupply generated for the sample rate converter\nand only feed into the SRC directly.
Text Notes 7550 4500 0    60   ~ 0
The first 10uF is to stabilise the LDO,\nthe other capacitors are to be used in pairs\nnext to supply pins.
Text Notes 6350 2250 0    60   ~ 0
R7 might need to be a 100nF capacitor\nor a 0R link.  Unsure yet.
$Comp
L PWR_FLAG #FLG5
U 1 1 56CED483
P 10850 4650
F 0 "#FLG5" H 10850 4745 50  0001 C CNN
F 1 "PWR_FLAG" H 10850 4874 50  0000 C CNN
F 2 "" H 10850 4650 50  0000 C CNN
F 3 "" H 10850 4650 50  0000 C CNN
	1    10850 4650
	1    0    0    -1  
$EndComp
Connection ~ 10850 4650
$EndSCHEMATC