EESchema Schematic File Version 2  date Mit 23 Mai 2012 04:17:52 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 "23 may 2012"
Rev "2"
Comp "mur.sat - A Space Art Project"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	2200 5200 2300 5200
Wire Wire Line
	2300 5600 2300 5400
Wire Wire Line
	7250 6100 7250 6150
Wire Wire Line
	7250 6150 7350 6150
Wire Wire Line
	2300 5600 1100 5600
Connection ~ 1450 5600
Wire Wire Line
	2300 5400 2200 5400
Connection ~ 5550 5300
Connection ~ 1800 1800
Wire Wire Line
	1200 1800 2000 1800
Connection ~ 1550 1800
Connection ~ 1800 1950
Wire Wire Line
	1800 1800 1800 4050
Wire Wire Line
	1800 4050 2550 4050
Wire Wire Line
	1850 1950 1800 1950
Wire Wire Line
	2200 1750 2200 1800
Wire Wire Line
	1200 2500 1200 2350
Wire Wire Line
	1200 1800 1200 1950
Wire Wire Line
	2200 1800 2550 1800
Connection ~ 5750 4150
Wire Wire Line
	5750 4350 5800 4350
Wire Wire Line
	6200 4150 6250 4150
Wire Wire Line
	6250 4150 6250 4250
Wire Wire Line
	6250 4250 6300 4250
Wire Wire Line
	6200 4550 6250 4550
Wire Wire Line
	6250 4550 6250 4450
Wire Wire Line
	6250 4450 6300 4450
Wire Wire Line
	6800 4350 7150 4350
Wire Wire Line
	7800 1700 7800 1250
Wire Wire Line
	9400 1250 9400 1450
Wire Wire Line
	3350 1150 3400 1150
Wire Wire Line
	2950 1150 2900 1150
Wire Wire Line
	8000 5700 7950 5700
Connection ~ 2500 3200
Wire Wire Line
	2500 3100 2500 3650
Wire Wire Line
	2500 2600 2500 2200
Wire Wire Line
	2500 3650 2550 3650
Wire Wire Line
	3300 3200 3700 3200
Connection ~ 2500 2500
Wire Wire Line
	5550 5300 5550 5750
Wire Wire Line
	1450 5700 1450 5500
Wire Wire Line
	3300 4200 3300 4350
Wire Wire Line
	3050 4200 3050 4250
Wire Wire Line
	1100 6150 1100 6250
Wire Wire Line
	4800 2350 4900 2350
Wire Wire Line
	4900 2350 4900 2300
Wire Wire Line
	5350 3050 5350 3100
Wire Wire Line
	5350 2550 5350 2150
Wire Wire Line
	3450 6100 3450 6150
Wire Wire Line
	3450 6150 3550 6150
Connection ~ 6800 6150
Wire Wire Line
	9450 5750 9350 5750
Wire Wire Line
	1450 4950 1450 5000
Connection ~ 10600 6650
Wire Wire Line
	9350 6650 10700 6650
Connection ~ 5600 6150
Wire Wire Line
	5650 6150 5550 6150
Wire Wire Line
	5600 6600 5600 6650
Connection ~ 5000 6150
Wire Wire Line
	5050 6150 4650 6150
Connection ~ 4700 6150
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
	5950 3300 5950 3250
Connection ~ 5700 2800
Wire Wire Line
	5700 2850 5700 2800
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
	7100 4600 7100 4550
Wire Wire Line
	7100 4550 7150 4550
Wire Wire Line
	7050 4150 7150 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 ~ 5700 1900
Wire Wire Line
	5350 1650 5350 1600
Wire Wire Line
	5350 1100 5350 1050
Wire Wire Line
	5700 2350 5700 2400
Wire Wire Line
	5950 1900 5950 1950
Wire Wire Line
	4100 6650 4100 6600
Connection ~ 4100 6150
Wire Wire Line
	4100 6200 4100 6150
Wire Wire Line
	6150 5600 6150 5550
Wire Wire Line
	6400 5600 6400 5550
Wire Wire Line
	6150 6300 6150 6350
Wire Wire Line
	4050 6150 4150 6150
Wire Wire Line
	4700 6650 4700 6600
Wire Wire Line
	1550 1700 1550 1900
Wire Wire Line
	3050 2400 3050 2350
Wire Wire Line
	3050 1650 3050 1600
Wire Wire Line
	8200 1700 8200 1500
Connection ~ 8200 1600
Connection ~ 7800 1600
Wire Wire Line
	3300 1650 3300 1600
Wire Wire Line
	1550 1200 1550 1150
Wire Wire Line
	1550 2400 1550 2500
Wire Wire Line
	5950 2400 5950 2350
Wire Wire Line
	5350 3600 5350 3650
Wire Wire Line
	5700 1950 5700 1900
Connection ~ 5950 1900
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
	7150 4050 7100 4050
Wire Wire Line
	7100 4050 7100 4000
Wire Wire Line
	8050 3450 7950 3450
Wire Wire Line
	8050 3550 8000 3550
Wire Wire Line
	8000 3550 8000 3600
Wire Wire Line
	8800 2700 9200 2700
Wire Wire Line
	9150 3250 9150 3300
Wire Wire Line
	5500 1900 6200 1900
Wire Wire Line
	5500 2800 6200 2800
Wire Wire Line
	8350 4300 8450 4300
Wire Wire Line
	5950 2800 5950 2850
Connection ~ 5950 2800
Wire Wire Line
	5700 3300 5700 3250
Wire Wire Line
	9300 1250 9300 1300
Wire Wire Line
	9300 1300 9200 1300
Wire Wire Line
	9450 4300 9250 4300
Connection ~ 9300 4300
Wire Wire Line
	9950 4300 10300 4300
Connection ~ 10100 4300
Wire Wire Line
	4700 6150 4700 6200
Wire Wire Line
	5050 6650 5000 6650
Wire Wire Line
	5000 6650 5000 6150
Wire Wire Line
	5600 6200 5600 6150
Wire Wire Line
	6800 6650 6800 5950
Wire Wire Line
	6800 5950 6750 5950
Connection ~ 5600 6650
Connection ~ 9400 6650
Wire Wire Line
	10550 5950 10600 5950
Wire Wire Line
	10600 5950 10600 6650
Wire Wire Line
	9400 6200 9400 6150
Wire Wire Line
	8800 6150 8800 6650
Wire Wire Line
	8800 6650 8850 6650
Wire Wire Line
	8500 6150 8500 6200
Wire Wire Line
	8500 6650 8500 6600
Wire Wire Line
	7850 6150 7950 6150
Wire Wire Line
	9950 6300 9950 6350
Wire Wire Line
	10200 5600 10200 5550
Wire Wire Line
	9950 5600 9950 5550
Wire Wire Line
	7900 6200 7900 6150
Connection ~ 7900 6150
Wire Wire Line
	7900 6650 7900 6600
Connection ~ 8500 6150
Wire Wire Line
	8850 6150 8450 6150
Connection ~ 8800 6150
Wire Wire Line
	9400 6600 9400 6650
Wire Wire Line
	9450 6150 9350 6150
Connection ~ 9400 6150
Wire Wire Line
	5550 6650 6900 6650
Connection ~ 6800 6650
Wire Wire Line
	5550 5750 5650 5750
Wire Wire Line
	1450 6200 1450 6250
Wire Wire Line
	3150 6150 3250 6150
Wire Wire Line
	3250 6150 3250 6100
Connection ~ 5350 2350
Wire Wire Line
	5350 2350 5100 2350
Wire Wire Line
	5100 2350 5100 2300
Wire Wire Line
	3800 2000 3650 2000
Wire Wire Line
	3700 2000 3700 2500
Connection ~ 3700 2000
Wire Wire Line
	3700 2500 2500 2500
Wire Wire Line
	2500 2200 2550 2200
Wire Wire Line
	9350 5750 9350 5300
Wire Wire Line
	3050 3000 3700 3000
Wire Wire Line
	3050 3000 3050 3050
Wire Wire Line
	3650 3850 4200 3850
Wire Wire Line
	3050 3500 3050 3450
Wire Wire Line
	2800 3200 2500 3200
Wire Wire Line
	3700 3000 3700 3850
Connection ~ 3700 3850
Connection ~ 3700 3200
Wire Wire Line
	8400 5700 8450 5700
Wire Wire Line
	10200 2600 10200 2550
Wire Wire Line
	7650 1300 7700 1300
Wire Wire Line
	7700 1300 7700 1250
Wire Wire Line
	7900 1250 7900 1300
Wire Wire Line
	7900 1300 7950 1300
Wire Wire Line
	6800 4250 7150 4250
Wire Wire Line
	6800 4450 7150 4450
Wire Wire Line
	6200 4350 6300 4350
Wire Wire Line
	5800 4150 5750 4150
Wire Wire Line
	5750 4050 5750 4550
Wire Wire Line
	5750 4550 5800 4550
Connection ~ 5750 4350
Wire Wire Line
	2000 1800 2000 1750
Wire Wire Line
	2350 1950 2400 1950
Wire Wire Line
	2400 1950 2400 1800
Connection ~ 2400 1800
Wire Wire Line
	1100 5600 1100 5750
Wire Wire Line
	6800 6150 7050 6150
Wire Wire Line
	7050 6150 7050 6100
Wire Wire Line
	9350 5300 2200 5300
Wire Wire Line
	2300 5200 2300 4050
Connection ~ 2300 4050
$Comp
L CONN_2 P109
U 1 1 4FBC459A
P 7150 5750
F 0 "P109" V 7100 5750 40  0000 C CNN
F 1 "F2IN" V 7200 5750 40  0000 C CNN
F 2 "F2IN" V 7060 5710 60  0001 C CNN
	1    7150 5750
	0    -1   -1   0   
$EndComp
$Comp
L CONN_3 K4
U 1 1 4FBC4460
P 1850 5300
F 0 "K4" V 1800 5300 50  0000 C CNN
F 1 "LOWPWR" V 1900 5300 40  0000 C CNN
	1    1850 5300
	-1   0    0    1   
$EndComp
$Comp
L R R30
U 1 1 4FBC41C0
P 2100 1950
F 0 "R30" V 2180 1950 50  0000 C CNN
F 1 "1M0" V 2100 1950 50  0000 C CNN
	1    2100 1950
	0    1    1    0   
$EndComp
$Comp
L GND #PWR01
U 1 1 4FBC41A7
P 1200 2500
F 0 "#PWR01" H 1200 2500 30  0001 C CNN
F 1 "GND" H 1200 2430 30  0001 C CNN
	1    1200 2500
	1    0    0    -1  
$EndComp
$Comp
L C C21
U 1 1 4FBC4183
P 1200 2150
F 0 "C21" H 1250 2250 50  0000 L CNN
F 1 "100nF" H 1250 2050 50  0000 L CNN
	1    1200 2150
	1    0    0    -1  
$EndComp
$Comp
L LED D3
U 1 1 4FBBD131
P 6000 4550
F 0 "D3" H 5650 4550 50  0000 C CNN
F 1 "RB0" H 5850 4500 50  0000 C CNN
	1    6000 4550
	1    0    0    -1  
$EndComp
$Comp
L LED D2
U 1 1 4FBBD12F
P 6000 4350
F 0 "D2" H 5650 4350 50  0000 C CNN
F 1 "RA7" H 5850 4300 50  0000 C CNN
	1    6000 4350
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR02
U 1 1 4FBBD117
P 5750 4050
F 0 "#PWR02" H 5750 4010 30  0001 C CNN
F 1 "+3.3V" H 5750 4160 30  0000 C CNN
	1    5750 4050
	1    0    0    -1  
$EndComp
$Comp
L R R29
U 1 1 4FBBD107
P 6550 4450
F 0 "R29" V 6500 4200 50  0000 C CNN
F 1 "330R" V 6550 4450 50  0000 C CNN
	1    6550 4450
	0    1    1    0   
$EndComp
$Comp
L R R28
U 1 1 4FBBD105
P 6550 4350
F 0 "R28" V 6500 4100 50  0000 C CNN
F 1 "330R" V 6550 4350 50  0000 C CNN
	1    6550 4350
	0    1    1    0   
$EndComp
$Comp
L LED D1
U 1 1 4FBBD08D
P 6000 4150
F 0 "D1" H 5650 4150 50  0000 C CNN
F 1 "RA6" H 5850 4100 50  0000 C CNN
	1    6000 4150
	1    0    0    -1  
$EndComp
$Comp
L R R27
U 1 1 4FBBD07F
P 6550 4250
F 0 "R27" V 6500 4000 50  0000 C CNN
F 1 "330R" V 6550 4250 50  0000 C CNN
	1    6550 4250
	0    1    1    0   
$EndComp
$Comp
L VCC #PWR03
U 1 1 4FBA6C36
P 10150 1400
F 0 "#PWR03" H 10150 1500 30  0001 C CNN
F 1 "VCC" H 10150 1500 30  0000 C CNN
	1    10150 1400
	0    -1   -1   0   
$EndComp
$Comp
L VCC #PWR04
U 1 1 4FBA6C2E
P 7950 1300
F 0 "#PWR04" H 7950 1400 30  0001 C CNN
F 1 "VCC" H 7950 1400 30  0000 C CNN
	1    7950 1300
	0    1    1    0   
$EndComp
$Comp
L +3.3V #PWR05
U 1 1 4FBA6BD2
P 7650 1300
F 0 "#PWR05" H 7650 1260 30  0001 C CNN
F 1 "+3.3V" H 7650 1410 30  0000 C CNN
	1    7650 1300
	0    -1   -1   0   
$EndComp
Text Label 9400 1450 2    60   ~ 0
MCLR
$Comp
L CONN_3 K2
U 1 1 4FBA6B8F
P 7800 900
F 0 "K2" V 7750 900 50  0000 C CNN
F 1 "PROG" V 7850 900 40  0000 C CNN
	1    7800 900 
	0    -1   -1   0   
$EndComp
$Comp
L CONN_3 K3
U 1 1 4FBA6B75
P 9400 900
F 0 "K3" V 9350 900 50  0000 C CNN
F 1 "PROG" V 9450 900 40  0000 C CNN
	1    9400 900 
	0    -1   -1   0   
$EndComp
$Comp
L C C15
U 1 1 4FBA6B22
P 3150 1150
F 0 "C15" V 3050 1250 50  0000 L CNN
F 1 "100nF" V 3050 950 50  0000 L CNN
	1    3150 1150
	0    1    1    0   
$EndComp
$Comp
L GND #PWR06
U 1 1 4FBA6B21
P 3400 1150
F 0 "#PWR06" H 3400 1150 30  0001 C CNN
F 1 "GND" H 3400 1080 30  0001 C CNN
	1    3400 1150
	0    -1   -1   0   
$EndComp
$Comp
L +3.3V #PWR07
U 1 1 4FBA6B20
P 2900 1150
F 0 "#PWR07" H 2900 1110 30  0001 C CNN
F 1 "+3.3V" H 2900 1260 30  0000 C CNN
	1    2900 1150
	0    -1   -1   0   
$EndComp
$Comp
L +3.3V #PWR08
U 1 1 4FBA6AFC
P 7950 5700
F 0 "#PWR08" H 7950 5660 30  0001 C CNN
F 1 "+3.3V" H 7950 5810 30  0000 C CNN
	1    7950 5700
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR09
U 1 1 4FBA6AF7
P 8450 5700
F 0 "#PWR09" H 8450 5700 30  0001 C CNN
F 1 "GND" H 8450 5630 30  0001 C CNN
	1    8450 5700
	0    -1   -1   0   
$EndComp
$Comp
L C C17
U 1 1 4FBA6AE5
P 8200 5700
F 0 "C17" V 8100 5800 50  0000 L CNN
F 1 "100nF" V 8100 5500 50  0000 L CNN
	1    8200 5700
	0    1    1    0   
$EndComp
$Comp
L POT RV4
U 1 1 4FB3052B
P 3050 3200
F 0 "RV4" H 3050 3100 50  0000 C CNN
F 1 "1M0" H 3050 3200 50  0000 C CNN
	1    3050 3200
	1    0    0    -1  
$EndComp
Text Label 3800 2000 0    60   ~ 0
PREAMP
$Comp
L R R20
U 1 1 4FB303C8
P 2500 2850
F 0 "R20" V 2580 2850 50  0000 C CNN
F 1 "20k" V 2500 2850 50  0000 C CNN
	1    2500 2850
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR010
U 1 1 4FB2FE0C
P 1100 6250
F 0 "#PWR010" H 1100 6250 30  0001 C CNN
F 1 "GND" H 1100 6180 30  0001 C CNN
	1    1100 6250
	1    0    0    -1  
$EndComp
$Comp
L C C14
U 1 1 4FB2FE04
P 1100 5950
F 0 "C14" H 1150 6050 50  0000 L CNN
F 1 "100nF" H 1150 5850 50  0000 L CNN
	1    1100 5950
	1    0    0    -1  
$EndComp
$Comp
L CONN_2 P107
U 1 1 4FB2FA8A
P 5000 1950
F 0 "P107" V 4950 1950 40  0000 C CNN
F 1 "TIN" V 5050 1950 40  0000 C CNN
	1    5000 1950
	0    -1   -1   0   
$EndComp
Text Label 4800 2350 2    60   ~ 0
AMP_OUT
$Comp
L CONN_2 P106
U 1 1 4FB2F8C3
P 3350 5750
F 0 "P106" V 3300 5750 40  0000 C CNN
F 1 "F1IN" V 3400 5750 40  0000 C CNN
	1    3350 5750
	0    -1   -1   0   
$EndComp
$Comp
L +3.3V #PWR011
U 1 1 4FB2F734
P 1450 4950
F 0 "#PWR011" H 1450 4910 30  0001 C CNN
F 1 "+3.3V" H 1450 5060 30  0000 C CNN
	1    1450 4950
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR012
U 1 1 4FB2F730
P 1450 6250
F 0 "#PWR012" H 1450 6250 30  0001 C CNN
F 1 "GND" H 1450 6180 30  0001 C CNN
	1    1450 6250
	1    0    0    -1  
$EndComp
$Comp
L R R18
U 1 1 4FB2F72A
P 1450 5250
F 0 "R18" V 1530 5250 50  0000 C CNN
F 1 "1M0" V 1450 5250 50  0000 C CNN
	1    1450 5250
	1    0    0    -1  
$EndComp
$Comp
L R R19
U 1 1 4FB2F71F
P 1450 5950
F 0 "R19" V 1530 5950 50  0000 C CNN
F 1 "1M0" V 1450 5950 50  0000 C CNN
	1    1450 5950
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR013
U 1 1 4FB2F6FD
P 8500 6650
F 0 "#PWR013" H 8500 6650 30  0001 C CNN
F 1 "GND" H 8500 6580 30  0001 C CNN
	1    8500 6650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR014
U 1 1 4FB2F6FC
P 7900 6650
F 0 "#PWR014" H 7900 6650 30  0001 C CNN
F 1 "GND" H 7900 6580 30  0001 C CNN
	1    7900 6650
	1    0    0    -1  
$EndComp
$Comp
L C C19
U 1 1 4FB2F6FB
P 9400 6400
F 0 "C19" H 9450 6500 50  0000 L CNN
F 1 "150pF" H 9450 6300 50  0000 L CNN
	1    9400 6400
	1    0    0    -1  
$EndComp
$Comp
L C C16
U 1 1 4FB2F6FA
P 7900 6400
F 0 "C16" H 7950 6500 50  0000 L CNN
F 1 "47nF" H 7950 6300 50  0000 L CNN
	1    7900 6400
	1    0    0    -1  
$EndComp
$Comp
L R R24
U 1 1 4FB2F6F9
P 9100 6150
F 0 "R24" V 9180 6150 50  0000 C CNN
F 1 "130k" V 9100 6150 50  0000 C CNN
	1    9100 6150
	0    1    1    0   
$EndComp
$Comp
L R R22
U 1 1 4FB2F6F8
P 7600 6150
F 0 "R22" V 7680 6150 50  0000 C CNN
F 1 "910R" V 7600 6150 50  0000 C CNN
	1    7600 6150
	0    1    1    0   
$EndComp
$Comp
L R R23
U 1 1 4FB2F6F7
P 8200 6150
F 0 "R23" V 8280 6150 50  0000 C CNN
F 1 "47k" V 8200 6150 50  0000 C CNN
	1    8200 6150
	0    1    1    0   
$EndComp
$Comp
L C C18
U 1 1 4FB2F6F6
P 8500 6400
F 0 "C18" H 8550 6500 50  0000 L CNN
F 1 "2,2nF" H 8550 6300 50  0000 L CNN
	1    8500 6400
	1    0    0    -1  
$EndComp
Text Label 10200 5550 0    60   ~ 0
FILTER_EN
$Comp
L GND #PWR015
U 1 1 4FB2F6F5
P 9950 6350
F 0 "#PWR015" H 9950 6350 30  0001 C CNN
F 1 "GND" H 9950 6280 30  0001 C CNN
	1    9950 6350
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR016
U 1 1 4FB2F6F4
P 9950 5550
F 0 "#PWR016" H 9950 5510 30  0001 C CNN
F 1 "+3.3V" H 9950 5660 30  0000 C CNN
	1    9950 5550
	1    0    0    -1  
$EndComp
$Comp
L MAX9913 U2
U 2 1 4FB2F6F3
P 9950 5950
F 0 "U2" H 10050 5600 60  0000 C CNN
F 1 "MAX9913" H 10150 5700 60  0000 C CNN
	2    9950 5950
	1    0    0    -1  
$EndComp
$Comp
L R R25
U 1 1 4FB2F6F2
P 9100 6650
F 0 "R25" V 9180 6650 50  0000 C CNN
F 1 "51k" V 9100 6650 50  0000 C CNN
	1    9100 6650
	0    1    1    0   
$EndComp
$Comp
L R R21
U 1 1 4FB2F632
P 5300 6650
F 0 "R21" V 5380 6650 50  0000 C CNN
F 1 "51k" V 5300 6650 50  0000 C CNN
	1    5300 6650
	0    1    1    0   
$EndComp
Text Label 3300 4350 0    60   ~ 0
PWRDWN
$Comp
L GND #PWR017
U 1 1 4FB2F4ED
P 10100 4850
F 0 "#PWR017" H 10100 4850 30  0001 C CNN
F 1 "GND" H 10100 4780 30  0001 C CNN
	1    10100 4850
	1    0    0    -1  
$EndComp
$Comp
L CONN_3X2 P108
U 1 1 4FB2F4D8
P 8850 4350
F 0 "P108" H 8850 4600 50  0000 C CNN
F 1 "ADC_IN" V 8850 4400 40  0000 C CNN
	1    8850 4350
	1    0    0    -1  
$EndComp
$Comp
L C C20
U 1 1 4FB2F4B0
P 10100 4600
F 0 "C20" H 10150 4700 50  0000 L CNN
F 1 "47nF" H 10150 4500 50  0000 L CNN
	1    10100 4600
	1    0    0    -1  
$EndComp
$Comp
L R R26
U 1 1 4FB2F4AC
P 9700 4300
F 0 "R26" 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
Text Label 3300 1600 0    60   ~ 0
PWRDWN
Text Label 9200 1300 2    60   ~ 0
PWRDWN
Text Label 10150 2700 2    60   ~ 0
PWRDWN
$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 6200 2800
F 0 "P104" H 6200 3100 40  0000 C CNN
F 1 "COMP_LOW" H 6200 3050 30  0000 C CNN
	1    6200 2800
	0    1    1    0   
$EndComp
$Comp
L TST P103
U 1 1 4F5A06E6
P 6200 1900
F 0 "P103" H 6200 2200 40  0000 C CNN
F 1 "COMP_HIGH" H 6200 2150 30  0000 C CNN
	1    6200 1900
	0    1    1    0   
$EndComp
Text Label 10700 6650 0    60   ~ 0
F2_OUT
Text Label 6900 6650 0    60   ~ 0
F1_OUT
$Comp
L GND #PWR018
U 1 1 4F56D6E5
P 9150 3300
F 0 "#PWR018" 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
$Comp
L R R17
U 1 1 4F56D6CE
P 9150 3000
F 0 "R17" V 9230 3000 50  0000 C CNN
F 1 "470k" V 9150 3000 50  0000 C CNN
	1    9150 3000
	1    0    0    -1  
$EndComp
Text Label 9200 2700 0    60   ~ 0
FILTER_EN
Text Label 7050 4450 2    60   ~ 0
RB0
Text Label 7050 4350 2    60   ~ 0
RA7
Text Label 7050 4250 2    60   ~ 0
RA6
Text Label 7050 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
F 1 "R" V 7700 3450 50  0000 C CNN
	1    7700 3450
	0    -1   -1   0   
$EndComp
$Comp
L +3.3V #PWR019
U 1 1 4F56D5AC
P 8000 3300
F 0 "#PWR019" 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
$Comp
L GND #PWR020
U 1 1 4F56D5A4
P 8000 3600
F 0 "#PWR020" 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
$Comp
L +3.3V #PWR021
U 1 1 4F56D5A1
P 7100 4000
F 0 "#PWR021" H 7100 3960 30  0001 C CNN
F 1 "+3.3V" H 7100 4110 30  0000 C CNN
	1    7100 4000
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR022
U 1 1 4F56D59E
P 7100 4600
F 0 "#PWR022" H 7100 4600 30  0001 C CNN
F 1 "GND" H 7100 4530 30  0001 C CNN
	1    7100 4600
	1    0    0    -1  
$EndComp
$Comp
L CONN_3 K1
U 1 1 4F56D585
P 8400 3450
F 0 "K1" V 8350 3450 50  0000 C CNN
F 1 "SPEAKER" V 8450 3450 40  0000 C CNN
	1    8400 3450
	1    0    0    -1  
$EndComp
$Comp
L CONN_6 P2
U 1 1 4F56D57B
P 7500 4300
F 0 "P2" V 7450 4300 60  0000 C CNN
F 1 "UNUSED" V 7550 4300 60  0000 C CNN
	1    7500 4300
	1    0    0    -1  
$EndComp
Text Label 8900 2000 0    60   ~ 0
RB0
Text Label 7100 2700 2    60   ~ 0
RA7
Text Label 7100 2600 2    60   ~ 0
RA6
Text Label 7100 2400 2    60   ~ 0
CCP4
Text Label 8900 2300 0    60   ~ 0
INT
Text Label 7100 2300 2    60   ~ 0
ADC_IN
Text Label 7100 2200 2    60   ~ 0
AMP_OUT
Text Label 7100 2100 2    60   ~ 0
C2+
Text Label 7100 2000 2    60   ~ 0
C1-
Text Label 8900 2200 0    60   ~ 0
SDO
Text Label 8900 2100 0    60   ~ 0
SDI
Text Label 8900 2400 0    60   ~ 0
SCK
Text Label 8900 2500 0    60   ~ 0
CS
Text Label 8900 2600 0    60   ~ 0
PGC
Text Label 8900 2700 0    60   ~ 0
PGD
Text Label 10000 1600 2    60   ~ 0
PGC
Text Label 10000 1500 2    60   ~ 0
PGD
Text Label 10000 1300 2    60   ~ 0
VPP
$Comp
L GND #PWR023
U 1 1 4F56CFED
P 10150 1750
F 0 "#PWR023" H 10150 1750 30  0001 C CNN
F 1 "GND" H 10150 1680 30  0001 C CNN
	1    10150 1750
	1    0    0    -1  
$EndComp
$Comp
L CONN_5 P4
U 1 1 4F56CFE5
P 10600 1500
F 0 "P4" V 10550 1500 50  0000 C CNN
F 1 "ICSP" V 10650 1500 50  0000 C CNN
	1    10600 1500
	1    0    0    1   
$EndComp
Text Label 10150 3200 2    60   ~ 0
SDO
Text Label 10150 3100 2    60   ~ 0
SDI
Text Label 10150 3000 2    60   ~ 0
SCK
Text Label 10150 2900 2    60   ~ 0
CS
Text Label 10150 2800 2    60   ~ 0
INT
$Comp
L +3.3V #PWR024
U 1 1 4F56CF77
P 10200 2550
F 0 "#PWR024" H 10200 2510 30  0001 C CNN
F 1 "+3.3V" H 10200 2660 30  0000 C CNN
	1    10200 2550
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR025
U 1 1 4F56CF70
P 10200 3350
F 0 "#PWR025" H 10200 3350 30  0001 C CNN
F 1 "GND" H 10200 3280 30  0001 C CNN
	1    10200 3350
	1    0    0    -1  
$EndComp
$Comp
L POT RV2
U 1 1 4F56CEE5
P 5350 1900
F 0 "RV2" H 5350 1800 50  0000 C CNN
F 1 "50k" H 5350 1900 50  0000 C CNN
	1    5350 1900
	0    1    1    0   
$EndComp
$Comp
L POT RV3
U 1 1 4F56CE90
P 5350 2800
F 0 "RV3" H 5350 2700 50  0000 C CNN
F 1 "50k" H 5350 2800 50  0000 C CNN
	1    5350 2800
	0    1    1    0   
$EndComp
Text Label 6050 1900 0    60   ~ 0
C1-
Text Label 6050 2800 0    60   ~ 0
C2+
$Comp
L +3.3V #PWR026
U 1 1 4F56CDD2
P 5350 1050
F 0 "#PWR026" H 5350 1010 30  0001 C CNN
F 1 "+3.3V" H 5350 1160 30  0000 C CNN
	1    5350 1050
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR027
U 1 1 4F56CDB6
P 5350 3650
F 0 "#PWR027" H 5350 3650 30  0001 C CNN
F 1 "GND" H 5350 3580 30  0001 C CNN
	1    5350 3650
	1    0    0    -1  
$EndComp
$Comp
L R R10
U 1 1 4F56CDB1
P 5350 3350
F 0 "R10" V 5430 3350 50  0000 C CNN
F 1 "330k" V 5350 3350 50  0000 C CNN
	1    5350 3350
	1    0    0    -1  
$EndComp
$Comp
L C C8
U 1 1 4F56CDAF
P 5700 3050
F 0 "C8" H 5750 3150 50  0000 L CNN
F 1 "5µF" H 5750 2950 50  0000 L CNN
	1    5700 3050
	1    0    0    -1  
$EndComp
$Comp
L C C10
U 1 1 4F56CDAE
P 5950 3050
F 0 "C10" H 6000 3150 50  0000 L CNN
F 1 "5µF" H 6000 2950 50  0000 L CNN
	1    5950 3050
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR028
U 1 1 4F56CDAD
P 5950 3300
F 0 "#PWR028" H 5950 3300 30  0001 C CNN
F 1 "GND" H 5950 3230 30  0001 C CNN
	1    5950 3300
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR029
U 1 1 4F56CDAC
P 5700 3300
F 0 "#PWR029" H 5700 3300 30  0001 C CNN
F 1 "GND" H 5700 3230 30  0001 C CNN
	1    5700 3300
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR030
U 1 1 4F56CD9B
P 5700 2400
F 0 "#PWR030" H 5700 2400 30  0001 C CNN
F 1 "GND" H 5700 2330 30  0001 C CNN
	1    5700 2400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR031
U 1 1 4F56CD99
P 5950 2400
F 0 "#PWR031" H 5950 2400 30  0001 C CNN
F 1 "GND" H 5950 2330 30  0001 C CNN
	1    5950 2400
	1    0    0    -1  
$EndComp
$Comp
L C C9
U 1 1 4F56CD43
P 5950 2150
F 0 "C9" H 6000 2250 50  0000 L CNN
F 1 "5µF" H 6000 2050 50  0000 L CNN
	1    5950 2150
	1    0    0    -1  
$EndComp
$Comp
L C C7
U 1 1 4F56CD3B
P 5700 2150
F 0 "C7" H 5750 2250 50  0000 L CNN
F 1 "5µF" H 5750 2050 50  0000 L CNN
	1    5700 2150
	1    0    0    -1  
$EndComp
$Comp
L R R9
U 1 1 4F56CD2D
P 5350 1350
F 0 "R9" V 5430 1350 50  0000 C CNN
F 1 "330k" V 5350 1350 50  0000 C CNN
	1    5350 1350
	1    0    0    -1  
$EndComp
Text Label 10300 4300 0    60   ~ 0
ADC_IN
Text Label 3150 6150 2    60   ~ 0
AMP_OUT
$Comp
L MAX9913 U2
U 1 1 4F56CBF6
P 6150 5950
F 0 "U2" H 6250 5600 60  0000 C CNN
F 1 "MAX9913" H 6350 5700 60  0000 C CNN
	1    6150 5950
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR032
U 1 1 4F56CBF5
P 6150 5550
F 0 "#PWR032" H 6150 5510 30  0001 C CNN
F 1 "+3.3V" H 6150 5660 30  0000 C CNN
	1    6150 5550
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR033
U 1 1 4F56CBF4
P 6150 6350
F 0 "#PWR033" H 6150 6350 30  0001 C CNN
F 1 "GND" H 6150 6280 30  0001 C CNN
	1    6150 6350
	1    0    0    -1  
$EndComp
Text Label 6400 5550 0    60   ~ 0
FILTER_EN
$Comp
L C C11
U 1 1 4F56CBF3
P 4700 6400
F 0 "C11" H 4750 6500 50  0000 L CNN
F 1 "2,2nF" H 4750 6300 50  0000 L CNN
	1    4700 6400
	1    0    0    -1  
$EndComp
$Comp
L R R11
U 1 1 4F56CBF2
P 4400 6150
F 0 "R11" V 4480 6150 50  0000 C CNN
F 1 "47k" V 4400 6150 50  0000 C CNN
	1    4400 6150
	0    1    1    0   
$EndComp
$Comp
L R R8
U 1 1 4F56CBF1
P 3800 6150
F 0 "R8" V 3880 6150 50  0000 C CNN
F 1 "910R" V 3800 6150 50  0000 C CNN
	1    3800 6150
	0    1    1    0   
$EndComp
$Comp
L R R12
U 1 1 4F56CBF0
P 5300 6150
F 0 "R12" V 5380 6150 50  0000 C CNN
F 1 "130k" V 5300 6150 50  0000 C CNN
	1    5300 6150
	0    1    1    0   
$EndComp
$Comp
L C C5
U 1 1 4F56CBEF
P 4100 6400
F 0 "C5" H 4150 6500 50  0000 L CNN
F 1 "47nF" H 4150 6300 50  0000 L CNN
	1    4100 6400
	1    0    0    -1  
$EndComp
$Comp
L C C6
U 1 1 4F56CBEE
P 5600 6400
F 0 "C6" H 5650 6500 50  0000 L CNN
F 1 "150pF" H 5650 6300 50  0000 L CNN
	1    5600 6400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR034
U 1 1 4F56CBED
P 4100 6650
F 0 "#PWR034" H 4100 6650 30  0001 C CNN
F 1 "GND" H 4100 6580 30  0001 C CNN
	1    4100 6650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR035
U 1 1 4F56CBEC
P 4700 6650
F 0 "#PWR035" H 4700 6650 30  0001 C CNN
F 1 "GND" H 4700 6580 30  0001 C CNN
	1    4700 6650
	1    0    0    -1  
$EndComp
Text Label 4200 3850 0    60   ~ 0
AMP_OUT
$Comp
L +3.3V #PWR036
U 1 1 4F56CA59
P 1550 1150
F 0 "#PWR036" H 1550 1110 30  0001 C CNN
F 1 "+3.3V" H 1550 1260 30  0000 C CNN
	1    1550 1150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR037
U 1 1 4F56C940
P 1550 2500
F 0 "#PWR037" H 1550 2500 30  0001 C CNN
F 1 "GND" H 1550 2430 30  0001 C CNN
	1    1550 2500
	1    0    0    -1  
$EndComp
$Comp
L R R5
U 1 1 4F56C8FE
P 1550 2150
F 0 "R5" V 1630 2150 50  0000 C CNN
F 1 "1M0" V 1550 2150 50  0000 C CNN
	1    1550 2150
	1    0    0    -1  
$EndComp
$Comp
L R R4
U 1 1 4F56C8E4
P 1550 1450
F 0 "R4" V 1630 1450 50  0000 C CNN
F 1 "1M0" V 1550 1450 50  0000 C CNN
	1    1550 1450
	1    0    0    -1  
$EndComp
$Comp
L CONN_2 P1
U 1 1 4F56C8DB
P 2100 1400
F 0 "P1" V 2050 1400 40  0000 C CNN
F 1 "MIC_IN" V 2150 1400 40  0000 C CNN
	1    2100 1400
	0    -1   -1   0   
$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 #PWR038
U 1 1 4F56B73F
P 8200 1500
F 0 "#PWR038" 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 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 #PWR039
U 1 1 4F56B6FA
P 3050 2400
F 0 "#PWR039" H 3050 2400 30  0001 C CNN
F 1 "GND" H 3050 2330 30  0001 C CNN
	1    3050 2400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR040
U 1 1 4F56B6F7
P 3050 3450
F 0 "#PWR040" H 3050 3450 30  0001 C CNN
F 1 "GND" H 3050 3380 30  0001 C CNN
	1    3050 3450
	-1   0    0    1   
$EndComp
$Comp
L +3.3V #PWR041
U 1 1 4F56B6E8
P 3050 4250
F 0 "#PWR041" H 3050 4210 30  0001 C CNN
F 1 "+3.3V" H 3050 4360 30  0000 C CNN
	1    3050 4250
	-1   0    0    1   
$EndComp
$Comp
L +3.3V #PWR042
U 1 1 4F56B6E5
P 3050 1600
F 0 "#PWR042" H 3050 1560 30  0001 C CNN
F 1 "+3.3V" H 3050 1710 30  0000 C CNN
	1    3050 1600
	1    0    0    -1  
$EndComp
$Comp
L MAX9913 U1
U 1 1 4F56B59C
P 3050 2000
F 0 "U1" H 3150 1650 60  0000 C CNN
F 1 "MAX9913" H 3250 1750 60  0000 C CNN
	1    3050 2000
	1    0    0    -1  
$EndComp
$Comp
L MAX9913 U1
U 2 1 4F56B58F
P 3050 3850
F 0 "U1" H 3150 3500 60  0000 C CNN
F 1 "MAX9913" H 3250 3600 60  0000 C CNN
	2    3050 3850
	1    0    0    1   
$EndComp
$EndSCHEMATC