EESchema Schematic File Version 2  date Fre 18 Mai 2012 23:51:08 CEST
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:special
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:mur-sat
LIBS:idm-cache
EELAYER 24  0
EELAYER END
$Descr A4 11700 8267
Sheet 1 1
Title "IDM"
Date "18 may 2012"
Rev "2"
Comp "mur.sat - A Space Art Project"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	10200 2100 10200 2150
Wire Wire Line
	10200 2150 10250 2150
Connection ~ 2250 3550
Wire Wire Line
	2250 3450 2250 4000
Wire Wire Line
	2250 2950 2250 2550
Wire Wire Line
	1950 5250 9150 5250
Connection ~ 1950 5250
Wire Wire Line
	2250 4000 2300 4000
Wire Wire Line
	3450 3550 3050 3550
Connection ~ 2250 2850
Wire Wire Line
	5550 5250 5550 5700
Wire Wire Line
	1950 5150 1950 5350
Wire Wire Line
	3050 4550 3050 4700
Wire Wire Line
	2800 4550 2800 4600
Wire Wire Line
	2250 5800 2250 5900
Wire Wire Line
	4700 2600 4800 2600
Wire Wire Line
	4800 2600 4800 2550
Wire Wire Line
	5250 3300 5250 3350
Wire Wire Line
	5250 2400 5250 2800
Wire Wire Line
	3450 6050 3450 6100
Wire Wire Line
	3450 6100 3550 6100
Wire Wire Line
	7150 6100 6800 6100
Connection ~ 6800 6100
Wire Wire Line
	9250 5700 9150 5700
Wire Wire Line
	1950 4600 1950 4650
Connection ~ 10400 6600
Wire Wire Line
	10500 6600 9150 6600
Connection ~ 5600 6100
Wire Wire Line
	5550 6100 5650 6100
Wire Wire Line
	5600 6550 5600 6600
Connection ~ 5000 6100
Wire Wire Line
	4650 6100 5050 6100
Connection ~ 4700 6100
Wire Wire Line
	10100 4850 10100 4800
Wire Wire Line
	10100 4400 10100 4300
Wire Wire Line
	9250 4400 9300 4400
Wire Wire Line
	9300 4400 9300 4200
Wire Wire Line
	9300 4200 9250 4200
Wire Wire Line
	7200 2500 7100 2500
Wire Wire Line
	9500 1250 9500 1300
Wire Wire Line
	9500 1300 10200 1300
Wire Wire Line
	5850 3550 5850 3500
Connection ~ 5600 3050
Wire Wire Line
	5600 3100 5600 3050
Wire Wire Line
	10150 2700 10250 2700
Wire Wire Line
	8450 4400 8350 4400
Wire Wire Line
	8450 4200 8350 4200
Connection ~ 9150 2700
Wire Wire Line
	9150 2750 9150 2700
Wire Wire Line
	7450 3450 7400 3450
Wire Wire Line
	8000 3300 8000 3350
Wire Wire Line
	8000 3350 8050 3350
Wire Wire Line
	6700 4600 6700 4550
Wire Wire Line
	6700 4550 6750 4550
Wire Wire Line
	6650 4350 6750 4350
Wire Wire Line
	6650 4150 6750 4150
Wire Wire Line
	7100 2600 7200 2600
Wire Wire Line
	8800 2000 8900 2000
Wire Wire Line
	8900 2300 8800 2300
Wire Wire Line
	7200 2200 7100 2200
Wire Wire Line
	7200 2000 7100 2000
Wire Wire Line
	8900 2100 8800 2100
Wire Wire Line
	8900 2400 8800 2400
Wire Wire Line
	8900 2600 8800 2600
Wire Wire Line
	10000 1500 10200 1500
Wire Wire Line
	10200 1400 10150 1400
Wire Wire Line
	10150 3100 10250 3100
Wire Wire Line
	10150 2900 10250 2900
Wire Wire Line
	10200 3350 10200 3300
Wire Wire Line
	10200 3300 10250 3300
Connection ~ 5600 2150
Wire Wire Line
	5250 1900 5250 1850
Wire Wire Line
	5250 1350 5250 1300
Wire Wire Line
	5600 2600 5600 2650
Wire Wire Line
	5850 2150 5850 2200
Wire Wire Line
	4100 6600 4100 6550
Connection ~ 4100 6100
Wire Wire Line
	4100 6150 4100 6100
Wire Wire Line
	6150 5550 6150 5500
Wire Wire Line
	6400 5550 6400 5500
Wire Wire Line
	6150 6250 6150 6300
Wire Wire Line
	4150 6100 4050 6100
Wire Wire Line
	4700 6600 4700 6550
Wire Wire Line
	1150 2700 1150 2550
Wire Wire Line
	1150 2550 1100 2550
Wire Wire Line
	1950 2050 1950 2250
Wire Wire Line
	1700 2150 2300 2150
Wire Wire Line
	2800 2750 2800 2700
Wire Wire Line
	2800 2000 2800 1950
Wire Wire Line
	8200 1500 8200 1700
Connection ~ 8200 1600
Wire Wire Line
	7800 1500 7800 1700
Connection ~ 7800 1600
Wire Wire Line
	3050 2000 3050 1950
Wire Wire Line
	1950 1550 1950 1500
Connection ~ 1950 2150
Wire Wire Line
	1950 2750 1950 2850
Wire Wire Line
	1100 2350 1150 2350
Wire Wire Line
	1150 2350 1150 2150
Wire Wire Line
	1150 2150 1300 2150
Wire Wire Line
	5850 2650 5850 2600
Wire Wire Line
	5250 3850 5250 3900
Wire Wire Line
	5600 2200 5600 2150
Connection ~ 5850 2150
Wire Wire Line
	10250 2600 10200 2600
Wire Wire Line
	10250 2800 10150 2800
Wire Wire Line
	10250 3000 10150 3000
Wire Wire Line
	10250 3200 10150 3200
Wire Wire Line
	10200 1700 10150 1700
Wire Wire Line
	10150 1700 10150 1750
Wire Wire Line
	10200 1600 10000 1600
Wire Wire Line
	8800 2200 8900 2200
Wire Wire Line
	8900 2500 8800 2500
Wire Wire Line
	7100 2100 7200 2100
Wire Wire Line
	7200 2300 7100 2300
Wire Wire Line
	7200 2400 7100 2400
Wire Wire Line
	7200 2700 7100 2700
Wire Wire Line
	6750 4050 6700 4050
Wire Wire Line
	6700 4050 6700 4000
Wire Wire Line
	6750 4250 6650 4250
Wire Wire Line
	6750 4450 6650 4450
Wire Wire Line
	8050 3450 7950 3450
Wire Wire Line
	8050 3550 8000 3550
Wire Wire Line
	8000 3550 8000 3600
Wire Wire Line
	9200 2700 8800 2700
Wire Wire Line
	9150 3250 9150 3300
Wire Wire Line
	6100 2150 5400 2150
Wire Wire Line
	6100 3050 5400 3050
Wire Wire Line
	8350 4300 8450 4300
Wire Wire Line
	5850 3100 5850 3050
Connection ~ 5850 3050
Wire Wire Line
	5600 3550 5600 3500
Wire Wire Line
	9300 1250 9300 1300
Wire Wire Line
	9300 1300 9200 1300
Wire Wire Line
	9250 4300 9450 4300
Connection ~ 9300 4300
Wire Wire Line
	10300 4300 9950 4300
Connection ~ 10100 4300
Wire Wire Line
	4700 6150 4700 6100
Wire Wire Line
	5050 6600 5000 6600
Wire Wire Line
	5000 6600 5000 6100
Wire Wire Line
	5600 6150 5600 6100
Wire Wire Line
	6800 6600 6800 5900
Wire Wire Line
	6800 5900 6750 5900
Connection ~ 5600 6600
Connection ~ 9200 6600
Wire Wire Line
	10350 5900 10400 5900
Wire Wire Line
	10400 5900 10400 6600
Wire Wire Line
	9200 6150 9200 6100
Wire Wire Line
	8600 6100 8600 6600
Wire Wire Line
	8600 6600 8650 6600
Wire Wire Line
	8300 6100 8300 6150
Wire Wire Line
	8300 6600 8300 6550
Wire Wire Line
	7750 6100 7650 6100
Wire Wire Line
	9750 6250 9750 6300
Wire Wire Line
	10000 5550 10000 5500
Wire Wire Line
	9750 5550 9750 5500
Wire Wire Line
	7700 6150 7700 6100
Connection ~ 7700 6100
Wire Wire Line
	7700 6600 7700 6550
Connection ~ 8300 6100
Wire Wire Line
	8250 6100 8650 6100
Connection ~ 8600 6100
Wire Wire Line
	9200 6600 9200 6550
Wire Wire Line
	9150 6100 9250 6100
Connection ~ 9200 6100
Wire Wire Line
	6900 6600 5550 6600
Connection ~ 6800 6600
Wire Wire Line
	5550 5700 5650 5700
Wire Wire Line
	1950 5850 1950 5900
Wire Wire Line
	3150 6100 3250 6100
Wire Wire Line
	3250 6100 3250 6050
Connection ~ 5250 2600
Wire Wire Line
	5250 2600 5000 2600
Wire Wire Line
	5000 2600 5000 2550
Wire Wire Line
	3400 2350 3550 2350
Wire Wire Line
	3450 2350 3450 2850
Connection ~ 3450 2350
Wire Wire Line
	3450 2850 2250 2850
Wire Wire Line
	2250 2550 2300 2550
Wire Wire Line
	9150 5700 9150 5250
Wire Wire Line
	2800 3350 3450 3350
Wire Wire Line
	2800 3350 2800 3400
Wire Wire Line
	2300 4400 2250 4400
Wire Wire Line
	2250 4400 2250 5400
Connection ~ 2250 5250
Connection ~ 5550 5250
Wire Wire Line
	3950 4200 3400 4200
Wire Wire Line
	2800 3850 2800 3800
Wire Wire Line
	2250 3550 2550 3550
Wire Wire Line
	3450 3350 3450 4200
Connection ~ 3450 4200
Connection ~ 3450 3550
Wire Wire Line
	10250 2350 10200 2350
Wire Wire Line
	10200 2350 10200 2600
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	1    2250 5600
	1    0    0    -1  
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	1    1950 4900
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	1    1950 5600
	1    0    0    -1  
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P 8300 6600
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	1    8300 6600
	1    0    0    -1  
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	1    7700 6600
	1    0    0    -1  
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	1    9200 6350
	1    0    0    -1  
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	1    7700 6350
	1    0    0    -1  
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	1    8900 6100
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	0    1    1    0   
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	1    8000 6100
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	1    9750 6300
	1    0    0    -1  
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L +3.3V #PWR?
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	1    9750 5500
	1    0    0    -1  
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	2    9750 5900
	1    0    0    -1  
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L R R?
U 1 1 4FB2F6F2
P 8900 6600
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	1    8900 6600
	0    1    1    0   
$EndComp
$Comp
L R R?
U 1 1 4FB2F632
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	1    5300 6600
	0    1    1    0   
$EndComp
Text Label 3050 4700 0    60   ~ 0
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L GND #PWR?
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	1    10100 4850
	1    0    0    -1  
$EndComp
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	1    8850 4350
	1    0    0    -1  
$EndComp
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U 1 1 4FB2F4B0
P 10100 4600
F 0 "C?" H 10150 4700 50  0000 L CNN
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	1    10100 4600
	1    0    0    -1  
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L R R?
U 1 1 4FB2F4AC
P 9700 4300
F 0 "R?" V 9780 4300 50  0000 C CNN
F 1 "910R" V 9700 4300 50  0000 C CNN
	1    9700 4300
	0    1    1    0   
$EndComp
Text Label 7100 2500 2    60   ~ 0
MCLR
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PWRDWN
Text Label 9200 1300 2    60   ~ 0
PWRDWN
$Comp
L CONN_2 P102
U 1 1 4F5ADCF7
P 9400 900
F 0 "P102" V 9350 900 40  0000 C CNN
F 1 "PROG" V 9450 900 40  0000 C CNN
	1    9400 900 
	0    -1   -1   0   
$EndComp
Text Label 10150 2700 2    60   ~ 0
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$Comp
L CONN_8 P105
U 1 1 4F5A4C4E
P 10600 2950
F 0 "P105" V 10550 2950 60  0000 C CNN
F 1 "MPU" V 10650 2950 60  0000 C CNN
	1    10600 2950
	1    0    0    -1  
$EndComp
Text Label 8350 4400 2    60   ~ 0
F2_OUT
Text Label 8350 4200 2    60   ~ 0
AMP_OUT
Text Label 8350 4300 2    60   ~ 0
F1_OUT
$Comp
L TST P104
U 1 1 4F5A06F2
P 6100 3050
F 0 "P104" H 6100 3350 40  0000 C CNN
F 1 "COMP_LOW" H 6100 3300 30  0000 C CNN
	1    6100 3050
	0    1    1    0   
$EndComp
$Comp
L TST P103
U 1 1 4F5A06E6
P 6100 2150
F 0 "P103" H 6100 2450 40  0000 C CNN
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	1    6100 2150
	0    1    1    0   
$EndComp
Text Label 10500 6600 0    60   ~ 0
F2_OUT
Text Label 6900 6600 0    60   ~ 0
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L GND #PWR01
U 1 1 4F56D6E5
P 9150 3300
F 0 "#PWR01" H 9150 3300 30  0001 C CNN
F 1 "GND" H 9150 3230 30  0001 C CNN
	1    9150 3300
	1    0    0    -1  
$EndComp
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U 1 1 4F56D6CE
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	1    9150 3000
	1    0    0    -1  
$EndComp
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FILTER_EN
Text Label 6650 4450 2    60   ~ 0
RB0
Text Label 6650 4350 2    60   ~ 0
RA7
Text Label 6650 4250 2    60   ~ 0
RA6
Text Label 6650 4150 2    60   ~ 0
CCP4
Text Label 7400 3450 2    60   ~ 0
CCP4
$Comp
L R R13
U 1 1 4F56D5B4
P 7700 3450
F 0 "R13" V 7780 3450 50  0000 C CNN
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	1    7700 3450
	0    -1   -1   0   
$EndComp
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U 1 1 4F56D5AC
P 8000 3300
F 0 "#PWR02" H 8000 3260 30  0001 C CNN
F 1 "+3.3V" H 8000 3410 30  0000 C CNN
	1    8000 3300
	1    0    0    -1  
$EndComp
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U 1 1 4F56D5A4
P 8000 3600
F 0 "#PWR03" H 8000 3600 30  0001 C CNN
F 1 "GND" H 8000 3530 30  0001 C CNN
	1    8000 3600
	1    0    0    -1  
$EndComp
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U 1 1 4F56D5A1
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	1    6700 4000
	1    0    0    -1  
$EndComp
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P 6700 4600
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	1    6700 4600
	1    0    0    -1  
$EndComp
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U 1 1 4F56D585
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	1    8400 3450
	1    0    0    -1  
$EndComp
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U 1 1 4F56D57B
P 7100 4300
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	1    7100 4300
	1    0    0    -1  
$EndComp
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Text Label 7100 2700 2    60   ~ 0
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Text Label 7100 2600 2    60   ~ 0
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Text Label 7100 2400 2    60   ~ 0
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Text Label 8900 2300 0    60   ~ 0
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Text Label 7100 2300 2    60   ~ 0
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Text Label 7100 2200 2    60   ~ 0
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Text Label 7100 2000 2    60   ~ 0
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Text Label 8900 2100 0    60   ~ 0
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Text Label 8900 2400 0    60   ~ 0
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Text Label 8900 2500 0    60   ~ 0
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Text Label 8900 2600 0    60   ~ 0
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Text Label 8900 2700 0    60   ~ 0
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Text Label 10000 1300 2    60   ~ 0
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P 10150 1750
F 0 "#PWR06" H 10150 1750 30  0001 C CNN
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	1    10150 1750
	1    0    0    -1  
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	1    10150 1400
	0    -1   -1   0   
$EndComp
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	1    10600 1500
	1    0    0    1   
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Text Label 10150 2800 2    60   ~ 0
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	1    10200 2100
	1    0    0    -1  
$EndComp
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	1    10200 3350
	1    0    0    -1  
$EndComp
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F 1 "50k" H 5250 2150 50  0000 C CNN
	1    5250 2150
	0    1    1    0   
$EndComp
$Comp
L POT RV3
U 1 1 4F56CE90
P 5250 3050
F 0 "RV3" H 5250 2950 50  0000 C CNN
F 1 "50k" H 5250 3050 50  0000 C CNN
	1    5250 3050
	0    1    1    0   
$EndComp
Text Label 5950 2150 0    60   ~ 0
C1-
Text Label 5950 3050 0    60   ~ 0
C2+
$Comp
L +3.3V #PWR010
U 1 1 4F56CDD2
P 5250 1300
F 0 "#PWR010" H 5250 1260 30  0001 C CNN
F 1 "+3.3V" H 5250 1410 30  0000 C CNN
	1    5250 1300
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR011
U 1 1 4F56CDB6
P 5250 3900
F 0 "#PWR011" H 5250 3900 30  0001 C CNN
F 1 "GND" H 5250 3830 30  0001 C CNN
	1    5250 3900
	1    0    0    -1  
$EndComp
$Comp
L R R10
U 1 1 4F56CDB1
P 5250 3600
F 0 "R10" V 5330 3600 50  0000 C CNN
F 1 "330k" V 5250 3600 50  0000 C CNN
	1    5250 3600
	1    0    0    -1  
$EndComp
$Comp
L C C8
U 1 1 4F56CDAF
P 5600 3300
F 0 "C8" H 5650 3400 50  0000 L CNN
F 1 "5µF" H 5650 3200 50  0000 L CNN
	1    5600 3300
	1    0    0    -1  
$EndComp
$Comp
L C C10
U 1 1 4F56CDAE
P 5850 3300
F 0 "C10" H 5900 3400 50  0000 L CNN
F 1 "5µF" H 5900 3200 50  0000 L CNN
	1    5850 3300
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR012
U 1 1 4F56CDAD
P 5850 3550
F 0 "#PWR012" H 5850 3550 30  0001 C CNN
F 1 "GND" H 5850 3480 30  0001 C CNN
	1    5850 3550
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR013
U 1 1 4F56CDAC
P 5600 3550
F 0 "#PWR013" H 5600 3550 30  0001 C CNN
F 1 "GND" H 5600 3480 30  0001 C CNN
	1    5600 3550
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR014
U 1 1 4F56CD9B
P 5600 2650
F 0 "#PWR014" H 5600 2650 30  0001 C CNN
F 1 "GND" H 5600 2580 30  0001 C CNN
	1    5600 2650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR015
U 1 1 4F56CD99
P 5850 2650
F 0 "#PWR015" H 5850 2650 30  0001 C CNN
F 1 "GND" H 5850 2580 30  0001 C CNN
	1    5850 2650
	1    0    0    -1  
$EndComp
$Comp
L C C9
U 1 1 4F56CD43
P 5850 2400
F 0 "C9" H 5900 2500 50  0000 L CNN
F 1 "5µF" H 5900 2300 50  0000 L CNN
	1    5850 2400
	1    0    0    -1  
$EndComp
$Comp
L C C7
U 1 1 4F56CD3B
P 5600 2400
F 0 "C7" H 5650 2500 50  0000 L CNN
F 1 "5µF" H 5650 2300 50  0000 L CNN
	1    5600 2400
	1    0    0    -1  
$EndComp
$Comp
L R R9
U 1 1 4F56CD2D
P 5250 1600
F 0 "R9" V 5330 1600 50  0000 C CNN
F 1 "330k" V 5250 1600 50  0000 C CNN
	1    5250 1600
	1    0    0    -1  
$EndComp
Text Label 10300 4300 0    60   ~ 0
ADC_IN
Text Label 3150 6100 2    60   ~ 0
AMP_OUT
$Comp
L MAX9913 U2
U 1 1 4F56CBF6
P 6150 5900
F 0 "U2" H 6250 5550 60  0000 C CNN
F 1 "MAX9913" H 6350 5650 60  0000 C CNN
	1    6150 5900
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR020
U 1 1 4F56CBF5
P 6150 5500
F 0 "#PWR020" H 6150 5460 30  0001 C CNN
F 1 "+3.3V" H 6150 5610 30  0000 C CNN
	1    6150 5500
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR021
U 1 1 4F56CBF4
P 6150 6300
F 0 "#PWR021" H 6150 6300 30  0001 C CNN
F 1 "GND" H 6150 6230 30  0001 C CNN
	1    6150 6300
	1    0    0    -1  
$EndComp
Text Label 6400 5500 0    60   ~ 0
FILTER_EN
$Comp
L C C11
U 1 1 4F56CBF3
P 4700 6350
F 0 "C11" H 4750 6450 50  0000 L CNN
F 1 "2,2nF" H 4750 6250 50  0000 L CNN
	1    4700 6350
	1    0    0    -1  
$EndComp
$Comp
L R R11
U 1 1 4F56CBF2
P 4400 6100
F 0 "R11" V 4480 6100 50  0000 C CNN
F 1 "47k" V 4400 6100 50  0000 C CNN
	1    4400 6100
	0    1    1    0   
$EndComp
$Comp
L R R8
U 1 1 4F56CBF1
P 3800 6100
F 0 "R8" V 3880 6100 50  0000 C CNN
F 1 "910R" V 3800 6100 50  0000 C CNN
	1    3800 6100
	0    1    1    0   
$EndComp
$Comp
L R R12
U 1 1 4F56CBF0
P 5300 6100
F 0 "R12" V 5380 6100 50  0000 C CNN
F 1 "130k" V 5300 6100 50  0000 C CNN
	1    5300 6100
	0    1    1    0   
$EndComp
$Comp
L C C5
U 1 1 4F56CBEF
P 4100 6350
F 0 "C5" H 4150 6450 50  0000 L CNN
F 1 "47nF" H 4150 6250 50  0000 L CNN
	1    4100 6350
	1    0    0    -1  
$EndComp
$Comp
L C C6
U 1 1 4F56CBEE
P 5600 6350
F 0 "C6" H 5650 6450 50  0000 L CNN
F 1 "150pF" H 5650 6250 50  0000 L CNN
	1    5600 6350
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR022
U 1 1 4F56CBED
P 4100 6600
F 0 "#PWR022" H 4100 6600 30  0001 C CNN
F 1 "GND" H 4100 6530 30  0001 C CNN
	1    4100 6600
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR023
U 1 1 4F56CBEC
P 4700 6600
F 0 "#PWR023" H 4700 6600 30  0001 C CNN
F 1 "GND" H 4700 6530 30  0001 C CNN
	1    4700 6600
	1    0    0    -1  
$EndComp
Text Label 3950 4200 0    60   ~ 0
AMP_OUT
$Comp
L +3.3V #PWR026
U 1 1 4F56CA59
P 1950 1500
F 0 "#PWR026" H 1950 1460 30  0001 C CNN
F 1 "+3.3V" H 1950 1610 30  0000 C CNN
	1    1950 1500
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR028
U 1 1 4F56C942
P 1150 2700
F 0 "#PWR028" H 1150 2700 30  0001 C CNN
F 1 "GND" H 1150 2630 30  0001 C CNN
	1    1150 2700
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR029
U 1 1 4F56C940
P 1950 2850
F 0 "#PWR029" H 1950 2850 30  0001 C CNN
F 1 "GND" H 1950 2780 30  0001 C CNN
	1    1950 2850
	1    0    0    -1  
$EndComp
$Comp
L C C2
U 1 1 4F56C903
P 1500 2150
F 0 "C2" H 1550 2250 50  0000 L CNN
F 1 "47µF" H 1550 2050 50  0000 L CNN
	1    1500 2150
	0    1    1    0   
$EndComp
$Comp
L R R5
U 1 1 4F56C8FE
P 1950 2500
F 0 "R5" V 2030 2500 50  0000 C CNN
F 1 "470k" V 1950 2500 50  0000 C CNN
	1    1950 2500
	1    0    0    -1  
$EndComp
$Comp
L R R4
U 1 1 4F56C8E4
P 1950 1800
F 0 "R4" V 2030 1800 50  0000 C CNN
F 1 "470k" V 1950 1800 50  0000 C CNN
	1    1950 1800
	1    0    0    -1  
$EndComp
$Comp
L CONN_2 P1
U 1 1 4F56C8DB
P 750 2450
F 0 "P1" V 700 2450 40  0000 C CNN
F 1 "MIC_IN" V 800 2450 40  0000 C CNN
	1    750  2450
	-1   0    0    1   
$EndComp
$Comp
L C C13
U 1 1 4F56B741
P 8000 1600
F 0 "C13" H 8050 1700 50  0000 L CNN
F 1 "100nF" H 8050 1500 50  0000 L CNN
	1    8000 1600
	0    1    1    0   
$EndComp
$Comp
L GND #PWR030
U 1 1 4F56B73F
P 8200 1500
F 0 "#PWR030" H 8200 1500 30  0001 C CNN
F 1 "GND" H 8200 1430 30  0001 C CNN
	1    8200 1500
	-1   0    0    1   
$EndComp
$Comp
L +3.3V #PWR031
U 1 1 4F56B73C
P 7800 1500
F 0 "#PWR031" H 7800 1460 30  0001 C CNN
F 1 "+3.3V" H 7800 1610 30  0000 C CNN
	1    7800 1500
	1    0    0    -1  
$EndComp
$Comp
L PIC16F1847SO U3
U 1 1 4F56B72F
P 8000 2350
F 0 "U3" H 8000 2400 60  0000 C CNN
F 1 "PIC16F1847SO" H 8000 2300 60  0000 C CNN
	1    8000 2350
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR032
U 1 1 4F56B6FA
P 2800 2750
F 0 "#PWR032" H 2800 2750 30  0001 C CNN
F 1 "GND" H 2800 2680 30  0001 C CNN
	1    2800 2750
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR033
U 1 1 4F56B6F7
P 2800 3800
F 0 "#PWR033" H 2800 3800 30  0001 C CNN
F 1 "GND" H 2800 3730 30  0001 C CNN
	1    2800 3800
	-1   0    0    1   
$EndComp
$Comp
L +3.3V #PWR034
U 1 1 4F56B6E8
P 2800 4600
F 0 "#PWR034" H 2800 4560 30  0001 C CNN
F 1 "+3.3V" H 2800 4710 30  0000 C CNN
	1    2800 4600
	-1   0    0    1   
$EndComp
$Comp
L +3.3V #PWR035
U 1 1 4F56B6E5
P 2800 1950
F 0 "#PWR035" H 2800 1910 30  0001 C CNN
F 1 "+3.3V" H 2800 2060 30  0000 C CNN
	1    2800 1950
	1    0    0    -1  
$EndComp
$Comp
L MAX9913 U1
U 1 1 4F56B59C
P 2800 2350
F 0 "U1" H 2900 2000 60  0000 C CNN
F 1 "MAX9913" H 3000 2100 60  0000 C CNN
	1    2800 2350
	1    0    0    -1  
$EndComp
$Comp
L MAX9913 U1
U 2 1 4F56B58F
P 2800 4200
F 0 "U1" H 2900 3850 60  0000 C CNN
F 1 "MAX9913" H 3000 3950 60  0000 C CNN
	2    2800 4200
	1    0    0    1   
$EndComp
$EndSCHEMATC