EESchema Schematic File Version 2 date Don 17 Mai 2012 17:56:49 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 "17 may 2012" Rev "2" Comp "mur.sat - A Space Art Project" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr 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 2350 4800 2350 Wire Wire Line 4800 2350 4800 2300 Wire Wire Line 5250 3050 5250 3100 Wire Wire Line 5250 2150 5250 2550 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 3300 5850 3250 Connection ~ 5600 2800 Wire Wire Line 5600 2850 5600 2800 Wire Wire Line 10150 2650 10250 2650 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 3050 10250 3050 Wire Wire Line 10150 2850 10250 2850 Wire Wire Line 10200 3300 10200 3250 Wire Wire Line 10200 3250 10250 3250 Connection ~ 5600 1900 Wire Wire Line 5250 1650 5250 1600 Wire Wire Line 5250 1100 5250 1050 Wire Wire Line 5600 2350 5600 2400 Wire Wire Line 5850 1900 5850 1950 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 2400 5850 2350 Wire Wire Line 5250 3600 5250 3650 Wire Wire Line 5600 1950 5600 1900 Connection ~ 5850 1900 Wire Wire Line 10200 2500 10200 2550 Wire Wire Line 10200 2550 10250 2550 Wire Wire Line 10250 2750 10150 2750 Wire Wire Line 10250 2950 10150 2950 Wire Wire Line 10250 3150 10150 3150 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 1900 5400 1900 Wire Wire Line 6100 2800 5400 2800 Wire Wire Line 8350 4300 8450 4300 Wire Wire Line 5850 2850 5850 2800 Connection ~ 5850 2800 Wire Wire Line 5600 3300 5600 3250 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 2350 Wire Wire Line 5250 2350 5000 2350 Wire Wire Line 5000 2350 5000 2300 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 $Comp L POT RV? U 1 1 4FB3052B P 2800 3550 F 0 "RV?" 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 R? U 1 1 4FB303C8 P 2250 3200 F 0 "R?" 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 #PWR? U 1 1 4FB2FE0C P 2250 5900 F 0 "#PWR?" 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 C? U 1 1 4FB2FE04 P 2250 5600 F 0 "C?" 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 P? U 1 1 4FB2FA8A P 4900 1950 F 0 "P?" V 4850 1950 40 0000 C CNN F 1 "TIN" V 4950 1950 40 0000 C CNN 1 4900 1950 0 -1 -1 0 $EndComp Text Label 4700 2350 2 60 ~ 0 AMP_OUT $Comp L CONN_2 P? U 1 1 4FB2F8C3 P 3350 5700 F 0 "P?" 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 #PWR? U 1 1 4FB2F734 P 1950 4600 F 0 "#PWR?" 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 #PWR? U 1 1 4FB2F730 P 1950 5900 F 0 "#PWR?" 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 R? U 1 1 4FB2F72A P 1950 4900 F 0 "R?" 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 R? U 1 1 4FB2F71F P 1950 5600 F 0 "R?" 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 #PWR? U 1 1 4FB2F6FD P 8300 6600 F 0 "#PWR?" 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 #PWR? U 1 1 4FB2F6FC P 7700 6600 F 0 "#PWR?" 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 C? U 1 1 4FB2F6FB P 9200 6350 F 0 "C?" 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 C? U 1 1 4FB2F6FA P 7700 6350 F 0 "C?" 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 R? U 1 1 4FB2F6F9 P 8900 6100 F 0 "R?" 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 R? U 1 1 4FB2F6F8 P 7400 6100 F 0 "R?" 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 R? U 1 1 4FB2F6F7 P 8000 6100 F 0 "R?" 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 C? U 1 1 4FB2F6F6 P 8300 6350 F 0 "C?" 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 #PWR? U 1 1 4FB2F6F5 P 9750 6300 F 0 "#PWR?" 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 #PWR? U 1 1 4FB2F6F4 P 9750 5500 F 0 "#PWR?" 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 R? U 1 1 4FB2F6F2 P 8900 6600 F 0 "R?" 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 R? U 1 1 4FB2F632 P 5300 6600 F 0 "R?" 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 #PWR? U 1 1 4FB2F4ED P 10100 4850 F 0 "#PWR?" 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 P? U 1 1 4FB2F4D8 P 8850 4350 F 0 "P?" 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 C? U 1 1 4FB2F4B0 P 10100 4600 F 0 "C?" 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 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 Text Label 3050 1950 0 60 ~ 0 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 2650 2 60 ~ 0 PWRDWN $Comp L CONN_8 P105 U 1 1 4F5A4C4E P 10600 2900 F 0 "P105" V 10550 2900 60 0000 C CNN F 1 "MPU" V 10650 2900 60 0000 C CNN 1 10600 2900 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 2800 F 0 "P104" H 6100 3100 40 0000 C CNN F 1 "COMP_LOW" H 6100 3050 30 0000 C CNN 1 6100 2800 0 1 1 0 $EndComp $Comp L TST P103 U 1 1 4F5A06E6 P 6100 1900 F 0 "P103" H 6100 2200 40 0000 C CNN F 1 "COMP_HIGH" H 6100 2150 30 0000 C CNN 1 6100 1900 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 #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 $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 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 F 1 "R" V 7700 3450 50 0000 C CNN 1 7700 3450 0 -1 -1 0 $EndComp $Comp L +3.3V #PWR02 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 $Comp L GND #PWR03 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 $Comp L +3.3V #PWR04 U 1 1 4F56D5A1 P 6700 4000 F 0 "#PWR04" H 6700 3960 30 0001 C CNN F 1 "+3.3V" H 6700 4110 30 0000 C CNN 1 6700 4000 1 0 0 -1 $EndComp $Comp L GND #PWR05 U 1 1 4F56D59E P 6700 4600 F 0 "#PWR05" H 6700 4600 30 0001 C CNN F 1 "GND" H 6700 4530 30 0001 C CNN 1 6700 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 7100 4300 F 0 "P2" V 7050 4300 60 0000 C CNN F 1 "UNUSED" V 7150 4300 60 0000 C CNN 1 7100 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 MCLR $Comp L GND #PWR06 U 1 1 4F56CFED P 10150 1750 F 0 "#PWR06" 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 +3.3V #PWR07 U 1 1 4F56CFEA P 10150 1400 F 0 "#PWR07" H 10150 1360 30 0001 C CNN F 1 "+3.3V" H 10150 1510 30 0000 C CNN 1 10150 1400 0 -1 -1 0 $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 3150 2 60 ~ 0 SDO Text Label 10150 3050 2 60 ~ 0 SDI Text Label 10150 2950 2 60 ~ 0 SCK Text Label 10150 2850 2 60 ~ 0 CS Text Label 10150 2750 2 60 ~ 0 INT $Comp L +3.3V #PWR08 U 1 1 4F56CF77 P 10200 2500 F 0 "#PWR08" H 10200 2460 30 0001 C CNN F 1 "+3.3V" H 10200 2610 30 0000 C CNN 1 10200 2500 1 0 0 -1 $EndComp $Comp L GND #PWR09 U 1 1 4F56CF70 P 10200 3300 F 0 "#PWR09" H 10200 3300 30 0001 C CNN F 1 "GND" H 10200 3230 30 0001 C CNN 1 10200 3300 1 0 0 -1 $EndComp $Comp L POT RV2 U 1 1 4F56CEE5 P 5250 1900 F 0 "RV2" H 5250 1800 50 0000 C CNN F 1 "50k" H 5250 1900 50 0000 C CNN 1 5250 1900 0 1 1 0 $EndComp $Comp L POT RV3 U 1 1 4F56CE90 P 5250 2800 F 0 "RV3" H 5250 2700 50 0000 C CNN F 1 "50k" H 5250 2800 50 0000 C CNN 1 5250 2800 0 1 1 0 $EndComp Text Label 5950 1900 0 60 ~ 0 C1- Text Label 5950 2800 0 60 ~ 0 C2+ $Comp L +3.3V #PWR010 U 1 1 4F56CDD2 P 5250 1050 F 0 "#PWR010" H 5250 1010 30 0001 C CNN F 1 "+3.3V" H 5250 1160 30 0000 C CNN 1 5250 1050 1 0 0 -1 $EndComp $Comp L GND #PWR011 U 1 1 4F56CDB6 P 5250 3650 F 0 "#PWR011" H 5250 3650 30 0001 C CNN F 1 "GND" H 5250 3580 30 0001 C CNN 1 5250 3650 1 0 0 -1 $EndComp $Comp L R R10 U 1 1 4F56CDB1 P 5250 3350 F 0 "R10" V 5330 3350 50 0000 C CNN F 1 "330k" V 5250 3350 50 0000 C CNN 1 5250 3350 1 0 0 -1 $EndComp $Comp L C C8 U 1 1 4F56CDAF P 5600 3050 F 0 "C8" H 5650 3150 50 0000 L CNN F 1 "5µF" H 5650 2950 50 0000 L CNN 1 5600 3050 1 0 0 -1 $EndComp $Comp L C C10 U 1 1 4F56CDAE P 5850 3050 F 0 "C10" H 5900 3150 50 0000 L CNN F 1 "5µF" H 5900 2950 50 0000 L CNN 1 5850 3050 1 0 0 -1 $EndComp $Comp L GND #PWR012 U 1 1 4F56CDAD P 5850 3300 F 0 "#PWR012" H 5850 3300 30 0001 C CNN F 1 "GND" H 5850 3230 30 0001 C CNN 1 5850 3300 1 0 0 -1 $EndComp $Comp L GND #PWR013 U 1 1 4F56CDAC P 5600 3300 F 0 "#PWR013" H 5600 3300 30 0001 C CNN F 1 "GND" H 5600 3230 30 0001 C CNN 1 5600 3300 1 0 0 -1 $EndComp $Comp L GND #PWR014 U 1 1 4F56CD9B P 5600 2400 F 0 "#PWR014" H 5600 2400 30 0001 C CNN F 1 "GND" H 5600 2330 30 0001 C CNN 1 5600 2400 1 0 0 -1 $EndComp $Comp L GND #PWR015 U 1 1 4F56CD99 P 5850 2400 F 0 "#PWR015" H 5850 2400 30 0001 C CNN F 1 "GND" H 5850 2330 30 0001 C CNN 1 5850 2400 1 0 0 -1 $EndComp $Comp L C C9 U 1 1 4F56CD43 P 5850 2150 F 0 "C9" H 5900 2250 50 0000 L CNN F 1 "5µF" H 5900 2050 50 0000 L CNN 1 5850 2150 1 0 0 -1 $EndComp $Comp L C C7 U 1 1 4F56CD3B P 5600 2150 F 0 "C7" H 5650 2250 50 0000 L CNN F 1 "5µF" H 5650 2050 50 0000 L CNN 1 5600 2150 1 0 0 -1 $EndComp $Comp L R R9 U 1 1 4F56CD2D P 5250 1350 F 0 "R9" V 5330 1350 50 0000 C CNN F 1 "330k" V 5250 1350 50 0000 C CNN 1 5250 1350 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