EESchema Schematic File Version 2  date Mit 23 Mai 2012 01:13:29 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 "22 may 2012"
Rev "2"
Comp "mur.sat - A Space Art Project"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	2550 5400 2550 5250
Wire Wire Line
	1700 3350 1850 3350
Wire Wire Line
	1850 3350 1850 2100
Wire Wire Line
	1700 5250 9150 5250
Wire Wire Line
	1700 5250 1700 3450
Connection ~ 5750 4350
Wire Wire Line
	5800 4550 5750 4550
Wire Wire Line
	5750 4550 5750 4050
Wire Wire Line
	5800 4150 5750 4150
Wire Wire Line
	6200 4350 6300 4350
Wire Wire Line
	6800 4450 7150 4450
Wire Wire Line
	6800 4250 7150 4250
Wire Wire Line
	7950 1300 7900 1300
Wire Wire Line
	7900 1300 7900 1250
Wire Wire Line
	7700 1250 7700 1300
Wire Wire Line
	7700 1300 7650 1300
Wire Wire Line
	10200 2550 10200 2600
Wire Wire Line
	8200 5650 8250 5650
Connection ~ 3450 3550
Connection ~ 3450 4200
Wire Wire Line
	3450 4200 3450 3350
Wire Wire Line
	2250 3550 2550 3550
Wire Wire Line
	2800 3850 2800 3800
Wire Wire Line
	3400 4200 3950 4200
Connection ~ 5550 5250
Connection ~ 2250 5250
Wire Wire Line
	2250 5400 2250 4400
Wire Wire Line
	2250 4400 2300 4400
Wire Wire Line
	2800 3400 2800 3350
Wire Wire Line
	2800 3350 3450 3350
Wire Wire Line
	9150 5250 9150 5700
Wire Wire Line
	2300 2550 2250 2550
Wire Wire Line
	2250 2850 3450 2850
Connection ~ 3450 2350
Wire Wire Line
	3450 2850 3450 2350
Wire Wire Line
	3550 2350 3400 2350
Wire Wire Line
	5000 2550 5000 2600
Wire Wire Line
	5000 2600 5250 2600
Connection ~ 5250 2600
Wire Wire Line
	3250 6050 3250 6100
Wire Wire Line
	3250 6100 3150 6100
Wire Wire Line
	1950 5850 1950 5900
Wire Wire Line
	5650 5700 5550 5700
Connection ~ 6800 6600
Wire Wire Line
	5550 6600 6900 6600
Connection ~ 9200 6100
Wire Wire Line
	9250 6100 9150 6100
Wire Wire Line
	9200 6600 9200 6550
Connection ~ 8600 6100
Wire Wire Line
	8650 6100 8250 6100
Connection ~ 8300 6100
Wire Wire Line
	7700 6600 7700 6550
Connection ~ 7700 6100
Wire Wire Line
	7700 6150 7700 6100
Wire Wire Line
	9750 5550 9750 5500
Wire Wire Line
	10000 5550 10000 5500
Wire Wire Line
	9750 6250 9750 6300
Wire Wire Line
	7650 6100 7750 6100
Wire Wire Line
	8300 6600 8300 6550
Wire Wire Line
	8300 6100 8300 6150
Wire Wire Line
	8650 6600 8600 6600
Wire Wire Line
	8600 6600 8600 6100
Wire Wire Line
	9200 6150 9200 6100
Wire Wire Line
	10400 6600 10400 5900
Wire Wire Line
	10400 5900 10350 5900
Connection ~ 9200 6600
Connection ~ 5600 6600
Wire Wire Line
	6750 5900 6800 5900
Wire Wire Line
	6800 5900 6800 6600
Wire Wire Line
	5600 6150 5600 6100
Wire Wire Line
	5000 6100 5000 6600
Wire Wire Line
	5000 6600 5050 6600
Wire Wire Line
	4700 6150 4700 6100
Connection ~ 10100 4300
Wire Wire Line
	9950 4300 10300 4300
Connection ~ 9300 4300
Wire Wire Line
	9450 4300 9250 4300
Wire Wire Line
	9200 1300 9300 1300
Wire Wire Line
	9300 1300 9300 1250
Wire Wire Line
	5600 3550 5600 3500
Connection ~ 5850 3050
Wire Wire Line
	5850 3100 5850 3050
Wire Wire Line
	8350 4300 8450 4300
Wire Wire Line
	5400 3050 6100 3050
Wire Wire Line
	5400 2150 6100 2150
Wire Wire Line
	9150 3250 9150 3300
Wire Wire Line
	8800 2700 9200 2700
Wire Wire Line
	8000 3600 8000 3550
Wire Wire Line
	8000 3550 8050 3550
Wire Wire Line
	8050 3450 7950 3450
Wire Wire Line
	7100 4000 7100 4050
Wire Wire Line
	7100 4050 7150 4050
Wire Wire Line
	7200 2700 7100 2700
Wire Wire Line
	7200 2400 7100 2400
Wire Wire Line
	7200 2300 7100 2300
Wire Wire Line
	7100 2100 7200 2100
Wire Wire Line
	8900 2500 8800 2500
Wire Wire Line
	8800 2200 8900 2200
Wire Wire Line
	10200 1600 10000 1600
Wire Wire Line
	10150 1750 10150 1700
Wire Wire Line
	10150 1700 10200 1700
Wire Wire Line
	10250 3200 10150 3200
Wire Wire Line
	10250 3000 10150 3000
Wire Wire Line
	10250 2800 10150 2800
Wire Wire Line
	10200 2600 10250 2600
Connection ~ 5850 2150
Wire Wire Line
	5600 2200 5600 2150
Wire Wire Line
	5250 3850 5250 3900
Wire Wire Line
	5850 2650 5850 2600
Wire Wire Line
	1300 2750 1300 2850
Wire Wire Line
	1300 1550 1300 1500
Wire Wire Line
	3050 2000 3050 1950
Connection ~ 7800 1600
Connection ~ 8200 1600
Wire Wire Line
	8200 1700 8200 1500
Wire Wire Line
	2800 2000 2800 1950
Wire Wire Line
	2800 2750 2800 2700
Wire Wire Line
	1300 2050 1300 2250
Wire Wire Line
	4700 6600 4700 6550
Wire Wire Line
	4050 6100 4150 6100
Wire Wire Line
	6150 6250 6150 6300
Wire Wire Line
	6400 5550 6400 5500
Wire Wire Line
	6150 5550 6150 5500
Wire Wire Line
	4100 6150 4100 6100
Connection ~ 4100 6100
Wire Wire Line
	4100 6600 4100 6550
Wire Wire Line
	5850 2150 5850 2200
Wire Wire Line
	5600 2600 5600 2650
Wire Wire Line
	5250 1350 5250 1300
Wire Wire Line
	5250 1900 5250 1850
Connection ~ 5600 2150
Wire Wire Line
	10250 3300 10200 3300
Wire Wire Line
	10200 3300 10200 3350
Wire Wire Line
	10150 2900 10250 2900
Wire Wire Line
	10150 3100 10250 3100
Wire Wire Line
	10200 1400 10150 1400
Wire Wire Line
	10000 1500 10200 1500
Wire Wire Line
	8900 2600 8800 2600
Wire Wire Line
	8900 2400 8800 2400
Wire Wire Line
	8900 2100 8800 2100
Wire Wire Line
	7200 2000 7100 2000
Wire Wire Line
	7200 2200 7100 2200
Wire Wire Line
	8900 2300 8800 2300
Wire Wire Line
	8800 2000 8900 2000
Wire Wire Line
	7100 2600 7200 2600
Wire Wire Line
	7050 4150 7150 4150
Wire Wire Line
	7150 4550 7100 4550
Wire Wire Line
	7100 4550 7100 4600
Wire Wire Line
	8050 3350 8000 3350
Wire Wire Line
	8000 3350 8000 3300
Wire Wire Line
	7450 3450 7400 3450
Wire Wire Line
	9150 2750 9150 2700
Connection ~ 9150 2700
Wire Wire Line
	8450 4200 8350 4200
Wire Wire Line
	8450 4400 8350 4400
Wire Wire Line
	10150 2700 10250 2700
Wire Wire Line
	5600 3100 5600 3050
Connection ~ 5600 3050
Wire Wire Line
	5850 3550 5850 3500
Wire Wire Line
	10200 1300 9500 1300
Wire Wire Line
	9500 1300 9500 1250
Wire Wire Line
	7200 2500 7100 2500
Wire Wire Line
	9250 4200 9300 4200
Wire Wire Line
	9300 4200 9300 4400
Wire Wire Line
	9300 4400 9250 4400
Wire Wire Line
	10100 4400 10100 4300
Wire Wire Line
	10100 4850 10100 4800
Connection ~ 4700 6100
Wire Wire Line
	5050 6100 4650 6100
Connection ~ 5000 6100
Wire Wire Line
	5600 6550 5600 6600
Wire Wire Line
	5650 6100 5550 6100
Connection ~ 5600 6100
Wire Wire Line
	9150 6600 10500 6600
Connection ~ 10400 6600
Wire Wire Line
	1950 4600 1950 4650
Wire Wire Line
	9150 5700 9250 5700
Connection ~ 6800 6100
Wire Wire Line
	7150 6100 6800 6100
Wire Wire Line
	3550 6100 3450 6100
Wire Wire Line
	3450 6100 3450 6050
Wire Wire Line
	5250 2800 5250 2400
Wire Wire Line
	5250 3300 5250 3350
Wire Wire Line
	4800 2550 4800 2600
Wire Wire Line
	4800 2600 4700 2600
Wire Wire Line
	2250 5800 2250 5900
Wire Wire Line
	2800 4550 2800 4600
Wire Wire Line
	3050 4550 3050 4700
Wire Wire Line
	1950 5350 1950 5150
Wire Wire Line
	5550 5700 5550 5250
Connection ~ 2250 2850
Wire Wire Line
	3050 3550 3450 3550
Wire Wire Line
	2300 4000 2250 4000
Connection ~ 1950 5250
Wire Wire Line
	2250 2550 2250 2950
Wire Wire Line
	2250 4000 2250 3450
Connection ~ 2250 3550
Wire Wire Line
	7800 5650 7750 5650
Wire Wire Line
	2700 1500 2650 1500
Wire Wire Line
	3100 1500 3150 1500
Wire Wire Line
	9400 1250 9400 1450
Wire Wire Line
	7800 1700 7800 1250
Wire Wire Line
	6800 4350 7150 4350
Wire Wire Line
	6300 4450 6250 4450
Wire Wire Line
	6250 4450 6250 4550
Wire Wire Line
	6250 4550 6200 4550
Wire Wire Line
	6300 4250 6250 4250
Wire Wire Line
	6250 4250 6250 4150
Wire Wire Line
	6250 4150 6200 4150
Wire Wire Line
	5750 4350 5800 4350
Connection ~ 5750 4150
Connection ~ 2550 5250
Wire Wire Line
	2550 5800 2550 5900
Wire Wire Line
	2300 2150 2050 2150
Wire Wire Line
	2050 2150 2050 2100
Wire Wire Line
	1700 3250 1700 2150
Wire Wire Line
	1700 2150 1300 2150
Connection ~ 1300 2150
$Comp
L CONN_3 K4
U 1 1 4FBC1928
P 1350 3350
F 0 "K4" V 1300 3350 50  0000 C CNN
F 1 "LOWPWR" V 1400 3350 40  0000 C CNN
	1    1350 3350
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR01
U 1 1 4FBC191C
P 2550 5900
F 0 "#PWR01" H 2550 5900 30  0001 C CNN
F 1 "GND" H 2550 5830 30  0001 C CNN
	1    2550 5900
	1    0    0    -1  
$EndComp
$Comp
L C C21
U 1 1 4FBC1902
P 2550 5600
F 0 "C21" H 2600 5700 50  0000 L CNN
F 1 "47nF" H 2600 5500 50  0000 L CNN
	1    2550 5600
	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 2900 1500
F 0 "C15" V 2800 1600 50  0000 L CNN
F 1 "100nF" V 2800 1300 50  0000 L CNN
	1    2900 1500
	0    1    1    0   
$EndComp
$Comp
L GND #PWR06
U 1 1 4FBA6B21
P 3150 1500
F 0 "#PWR06" H 3150 1500 30  0001 C CNN
F 1 "GND" H 3150 1430 30  0001 C CNN
	1    3150 1500
	0    -1   -1   0   
$EndComp
$Comp
L +3.3V #PWR07
U 1 1 4FBA6B20
P 2650 1500
F 0 "#PWR07" H 2650 1460 30  0001 C CNN
F 1 "+3.3V" H 2650 1610 30  0000 C CNN
	1    2650 1500
	0    -1   -1   0   
$EndComp
$Comp
L +3.3V #PWR08
U 1 1 4FBA6AFC
P 7750 5650
F 0 "#PWR08" H 7750 5610 30  0001 C CNN
F 1 "+3.3V" H 7750 5760 30  0000 C CNN
	1    7750 5650
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR09
U 1 1 4FBA6AF7
P 8250 5650
F 0 "#PWR09" H 8250 5650 30  0001 C CNN
F 1 "GND" H 8250 5580 30  0001 C CNN
	1    8250 5650
	0    -1   -1   0   
$EndComp
$Comp
L C C17
U 1 1 4FBA6AE5
P 8000 5650
F 0 "C17" V 7900 5750 50  0000 L CNN
F 1 "100nF" V 7900 5450 50  0000 L CNN
	1    8000 5650
	0    1    1    0   
$EndComp
$Comp
L POT RV4
U 1 1 4FB3052B
P 2800 3550
F 0 "RV4" H 2800 3450 50  0000 C CNN
F 1 "1M0" H 2800 3550 50  0000 C CNN
	1    2800 3550
	1    0    0    -1  
$EndComp
Text Label 3550 2350 0    60   ~ 0
PREAMP
$Comp
L R R20
U 1 1 4FB303C8
P 2250 3200
F 0 "R20" V 2330 3200 50  0000 C CNN
F 1 "20k" V 2250 3200 50  0000 C CNN
	1    2250 3200
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR010
U 1 1 4FB2FE0C
P 2250 5900
F 0 "#PWR010" H 2250 5900 30  0001 C CNN
F 1 "GND" H 2250 5830 30  0001 C CNN
	1    2250 5900
	1    0    0    -1  
$EndComp
$Comp
L C C14
U 1 1 4FB2FE04
P 2250 5600
F 0 "C14" H 2300 5700 50  0000 L CNN
F 1 "1µF" H 2300 5500 50  0000 L CNN
	1    2250 5600
	1    0    0    -1  
$EndComp
$Comp
L CONN_2 P107
U 1 1 4FB2FA8A
P 4900 2200
F 0 "P107" V 4850 2200 40  0000 C CNN
F 1 "TIN" V 4950 2200 40  0000 C CNN
	1    4900 2200
	0    -1   -1   0   
$EndComp
Text Label 4700 2600 2    60   ~ 0
AMP_OUT
$Comp
L CONN_2 P106
U 1 1 4FB2F8C3
P 3350 5700
F 0 "P106" V 3300 5700 40  0000 C CNN
F 1 "FIN" V 3400 5700 40  0000 C CNN
	1    3350 5700
	0    -1   -1   0   
$EndComp
$Comp
L +3.3V #PWR011
U 1 1 4FB2F734
P 1950 4600
F 0 "#PWR011" H 1950 4560 30  0001 C CNN
F 1 "+3.3V" H 1950 4710 30  0000 C CNN
	1    1950 4600
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR012
U 1 1 4FB2F730
P 1950 5900
F 0 "#PWR012" H 1950 5900 30  0001 C CNN
F 1 "GND" H 1950 5830 30  0001 C CNN
	1    1950 5900
	1    0    0    -1  
$EndComp
$Comp
L R R18
U 1 1 4FB2F72A
P 1950 4900
F 0 "R18" V 2030 4900 50  0000 C CNN
F 1 "470k" V 1950 4900 50  0000 C CNN
	1    1950 4900
	1    0    0    -1  
$EndComp
$Comp
L R R19
U 1 1 4FB2F71F
P 1950 5600
F 0 "R19" V 2030 5600 50  0000 C CNN
F 1 "470k" V 1950 5600 50  0000 C CNN
	1    1950 5600
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR013
U 1 1 4FB2F6FD
P 8300 6600
F 0 "#PWR013" H 8300 6600 30  0001 C CNN
F 1 "GND" H 8300 6530 30  0001 C CNN
	1    8300 6600
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR014
U 1 1 4FB2F6FC
P 7700 6600
F 0 "#PWR014" H 7700 6600 30  0001 C CNN
F 1 "GND" H 7700 6530 30  0001 C CNN
	1    7700 6600
	1    0    0    -1  
$EndComp
$Comp
L C C19
U 1 1 4FB2F6FB
P 9200 6350
F 0 "C19" H 9250 6450 50  0000 L CNN
F 1 "150pF" H 9250 6250 50  0000 L CNN
	1    9200 6350
	1    0    0    -1  
$EndComp
$Comp
L C C16
U 1 1 4FB2F6FA
P 7700 6350
F 0 "C16" H 7750 6450 50  0000 L CNN
F 1 "47nF" H 7750 6250 50  0000 L CNN
	1    7700 6350
	1    0    0    -1  
$EndComp
$Comp
L R R24
U 1 1 4FB2F6F9
P 8900 6100
F 0 "R24" V 8980 6100 50  0000 C CNN
F 1 "130k" V 8900 6100 50  0000 C CNN
	1    8900 6100
	0    1    1    0   
$EndComp
$Comp
L R R22
U 1 1 4FB2F6F8
P 7400 6100
F 0 "R22" V 7480 6100 50  0000 C CNN
F 1 "910R" V 7400 6100 50  0000 C CNN
	1    7400 6100
	0    1    1    0   
$EndComp
$Comp
L R R23
U 1 1 4FB2F6F7
P 8000 6100
F 0 "R23" V 8080 6100 50  0000 C CNN
F 1 "47k" V 8000 6100 50  0000 C CNN
	1    8000 6100
	0    1    1    0   
$EndComp
$Comp
L C C18
U 1 1 4FB2F6F6
P 8300 6350
F 0 "C18" H 8350 6450 50  0000 L CNN
F 1 "2,2nF" H 8350 6250 50  0000 L CNN
	1    8300 6350
	1    0    0    -1  
$EndComp
Text Label 10000 5500 0    60   ~ 0
FILTER_EN
$Comp
L GND #PWR015
U 1 1 4FB2F6F5
P 9750 6300
F 0 "#PWR015" H 9750 6300 30  0001 C CNN
F 1 "GND" H 9750 6230 30  0001 C CNN
	1    9750 6300
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR016
U 1 1 4FB2F6F4
P 9750 5500
F 0 "#PWR016" H 9750 5460 30  0001 C CNN
F 1 "+3.3V" H 9750 5610 30  0000 C CNN
	1    9750 5500
	1    0    0    -1  
$EndComp
$Comp
L MAX9913 U2
U 2 1 4FB2F6F3
P 9750 5900
F 0 "U2" H 9850 5550 60  0000 C CNN
F 1 "MAX9913" H 9950 5650 60  0000 C CNN
	2    9750 5900
	1    0    0    -1  
$EndComp
$Comp
L R R25
U 1 1 4FB2F6F2
P 8900 6600
F 0 "R25" V 8980 6600 50  0000 C CNN
F 1 "51k" V 8900 6600 50  0000 C CNN
	1    8900 6600
	0    1    1    0   
$EndComp
$Comp
L R R21
U 1 1 4FB2F632
P 5300 6600
F 0 "R21" V 5380 6600 50  0000 C CNN
F 1 "51k" V 5300 6600 50  0000 C CNN
	1    5300 6600
	0    1    1    0   
$EndComp
Text Label 3050 4700 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 3050 1950 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 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
F 1 "COMP_HIGH" H 6100 2400 30  0000 C CNN
	1    6100 2150
	0    1    1    0   
$EndComp
Text Label 10500 6600 0    60   ~ 0
F2_OUT
Text Label 6900 6600 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 5250 2150
F 0 "RV2" H 5250 2050 50  0000 C CNN
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 #PWR026
U 1 1 4F56CDD2
P 5250 1300
F 0 "#PWR026" 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 #PWR027
U 1 1 4F56CDB6
P 5250 3900
F 0 "#PWR027" 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 #PWR028
U 1 1 4F56CDAD
P 5850 3550
F 0 "#PWR028" 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 #PWR029
U 1 1 4F56CDAC
P 5600 3550
F 0 "#PWR029" 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 #PWR030
U 1 1 4F56CD9B
P 5600 2650
F 0 "#PWR030" 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 #PWR031
U 1 1 4F56CD99
P 5850 2650
F 0 "#PWR031" 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 #PWR032
U 1 1 4F56CBF5
P 6150 5500
F 0 "#PWR032" 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 #PWR033
U 1 1 4F56CBF4
P 6150 6300
F 0 "#PWR033" 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 #PWR034
U 1 1 4F56CBED
P 4100 6600
F 0 "#PWR034" 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 #PWR035
U 1 1 4F56CBEC
P 4700 6600
F 0 "#PWR035" 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 #PWR036
U 1 1 4F56CA59
P 1300 1500
F 0 "#PWR036" H 1300 1460 30  0001 C CNN
F 1 "+3.3V" H 1300 1610 30  0000 C CNN
	1    1300 1500
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR037
U 1 1 4F56C940
P 1300 2850
F 0 "#PWR037" H 1300 2850 30  0001 C CNN
F 1 "GND" H 1300 2780 30  0001 C CNN
	1    1300 2850
	1    0    0    -1  
$EndComp
$Comp
L R R5
U 1 1 4F56C8FE
P 1300 2500
F 0 "R5" V 1380 2500 50  0000 C CNN
F 1 "470k" V 1300 2500 50  0000 C CNN
	1    1300 2500
	1    0    0    -1  
$EndComp
$Comp
L R R4
U 1 1 4F56C8E4
P 1300 1800
F 0 "R4" V 1380 1800 50  0000 C CNN
F 1 "470k" V 1300 1800 50  0000 C CNN
	1    1300 1800
	1    0    0    -1  
$EndComp
$Comp
L CONN_2 P1
U 1 1 4F56C8DB
P 1950 1750
F 0 "P1" V 1900 1750 40  0000 C CNN
F 1 "MIC_IN" V 2000 1750 40  0000 C CNN
	1    1950 1750
	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 2800 2750
F 0 "#PWR039" 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 #PWR040
U 1 1 4F56B6F7
P 2800 3800
F 0 "#PWR040" 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 #PWR041
U 1 1 4F56B6E8
P 2800 4600
F 0 "#PWR041" 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 #PWR042
U 1 1 4F56B6E5
P 2800 1950
F 0 "#PWR042" 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