EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS: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:MLAB_IO
LIBS:MLAB_D
LIBS:MLAB_T
LIBS:Jumpers
LIBS:PCRD02A-cache
EELAYER 24 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L R R?
U 1 1 5476823C
P 900 2850
F 0 "R?" V 980 2850 40  0000 C CNN
F 1 "4M7" V 907 2851 40  0000 C CNN
F 2 "" V 830 2850 30  0000 C CNN
F 3 "" H 900 2850 30  0000 C CNN
        1    900  2850
        1    0    0    -1  
$EndComp
$Comp
L R R?
U 1 1 547682B2
P 900 3600
F 0 "R?" V 980 3600 40  0000 C CNN
F 1 "4M7" V 907 3601 40  0000 C CNN
F 2 "" V 830 3600 30  0000 C CNN
F 3 "" H 900 3600 30  0000 C CNN
        1    900  3600
        1    0    0    -1  
$EndComp
$Comp
L C C?
U 1 1 547682EE
P 1300 3600
F 0 "C?" H 1300 3700 40  0000 L CNN
F 1 "100k" H 1306 3515 40  0000 L CNN
F 2 "" H 1338 3450 30  0000 C CNN
F 3 "" H 1300 3600 60  0000 C CNN
        1    1300 3600
        1    0    0    -1  
$EndComp
$Comp
L DIODE D?
U 1 1 547683A9
P 900 4500
F 0 "D?" H 900 4600 40  0000 C CNN
F 1 "DIODE" H 900 4400 40  0000 C CNN
F 2 "" H 900 4500 60  0000 C CNN
F 3 "" H 900 4500 60  0000 C CNN
        1    900  4500
        0    -1   -1   0   
$EndComp
$Comp
L C C?
U 1 1 54768486
P 1300 4200
F 0 "C?" H 1300 4300 40  0000 L CNN
F 1 "100k" H 1306 4115 40  0000 L CNN
F 2 "" H 1338 4050 30  0000 C CNN
F 3 "" H 1300 4200 60  0000 C CNN
        1    1300 4200
        0    1    1    0   
$EndComp
$Comp
L JFET_N Q?
U 1 1 547684BC
P 2000 4200
F 0 "Q?" H 1903 4450 70  0000 C CNN
F 1 "BF862" H 1853 3953 60  0000 C CNN
F 2 "" H 2000 4200 60  0000 C CNN
F 3 "" H 2000 4200 60  0000 C CNN
        1    2000 4200
        1    0    0    -1  
$EndComp
$Comp
L R R?
U 1 1 54768535
P 2150 3450
F 0 "R?" V 2230 3450 40  0000 C CNN
F 1 "R" V 2157 3451 40  0000 C CNN
F 2 "" V 2080 3450 30  0000 C CNN
F 3 "" H 2150 3450 30  0000 C CNN
        1    2150 3450
        1    0    0    -1  
$EndComp
$Comp
L R R?
U 1 1 5476858B
P 2150 2800
F 0 "R?" V 2230 2800 40  0000 C CNN
F 1 "R" V 2157 2801 40  0000 C CNN
F 2 "" V 2080 2800 30  0000 C CNN
F 3 "" H 2150 2800 30  0000 C CNN
        1    2150 2800
        1    0    0    -1  
$EndComp
$Comp
L R R?
U 1 1 547685C9
P 2650 3450
F 0 "R?" V 2730 3450 40  0000 C CNN
F 1 "R" V 2657 3451 40  0000 C CNN
F 2 "" V 2580 3450 30  0000 C CNN
F 3 "" H 2650 3450 30  0000 C CNN
        1    2650 3450
        1    0    0    -1  
$EndComp
$Comp
L R R?
U 1 1 5476860C
P 2650 4250
F 0 "R?" V 2730 4250 40  0000 C CNN
F 1 "R" V 2657 4251 40  0000 C CNN
F 2 "" V 2580 4250 30  0000 C CNN
F 3 "" H 2650 4250 30  0000 C CNN
        1    2650 4250
        1    0    0    -1  
$EndComp
$Comp
L AD8691 U?
U 1 1 547687AC
P 3750 3850
F 0 "U?" H 3900 4150 70  0000 C CNN
F 1 "AD8691" H 3900 4050 70  0000 C CNN
F 2 "" H 3750 3850 60  0000 C CNN
F 3 "" H 3750 3850 60  0000 C CNN
        1    3750 3850
        1    0    0    -1  
$EndComp
$Comp
L C C?
U 1 1 54768B04
P 3700 4700
F 0 "C?" H 3700 4800 40  0000 L CNN
F 1 "2" H 3706 4615 40  0000 L CNN
F 2 "" H 3738 4550 30  0000 C CNN
F 3 "" H 3700 4700 60  0000 C CNN
        1    3700 4700
        0    1    1    0   
$EndComp
$Comp
L R R?
U 1 1 54768C16
P 3700 5000
F 0 "R?" V 3780 5000 40  0000 C CNN
F 1 "2M" V 3707 5001 40  0000 C CNN
F 2 "" V 3630 5000 30  0000 C CNN
F 3 "" H 3700 5000 30  0000 C CNN
        1    3700 5000
        0    1    1    0   
$EndComp
$Comp
L R R?
U 1 1 54768CE2
P 6450 4250
F 0 "R?" V 6530 4250 40  0000 C CNN
F 1 "10k" V 6457 4251 40  0000 C CNN
F 2 "" V 6380 4250 30  0000 C CNN
F 3 "" H 6450 4250 30  0000 C CNN
        1    6450 4250
        1    0    0    -1  
$EndComp
$Comp
L R R?
U 1 1 54768D36
P 6450 4900
F 0 "R?" V 6530 4900 40  0000 C CNN
F 1 "1k5" V 6457 4901 40  0000 C CNN
F 2 "" V 6380 4900 30  0000 C CNN
F 3 "" H 6450 4900 30  0000 C CNN
        1    6450 4900
        1    0    0    -1  
$EndComp
$Comp
L C C?
U 1 1 54768D77
P 6900 4250
F 0 "C?" H 6900 4350 40  0000 L CNN
F 1 "510" H 6906 4165 40  0000 L CNN
F 2 "" H 6938 4100 30  0000 C CNN
F 3 "" H 6900 4250 60  0000 C CNN
        1    6900 4250
        -1   0    0    1   
$EndComp
$Comp
L R R?
U 1 1 54768E39
P 7350 3950
F 0 "R?" V 7430 3950 40  0000 C CNN
F 1 "3k9" V 7357 3951 40  0000 C CNN
F 2 "" V 7280 3950 30  0000 C CNN
F 3 "" H 7350 3950 30  0000 C CNN
        1    7350 3950
        0    1    1    0   
$EndComp
$Comp
L R R?
U 1 1 54768EA8
P 8000 3950
F 0 "R?" V 8080 3950 40  0000 C CNN
F 1 "2k4" V 8007 3951 40  0000 C CNN
F 2 "" V 7930 3950 30  0000 C CNN
F 3 "" H 8000 3950 30  0000 C CNN
        1    8000 3950
        0    1    1    0   
$EndComp
$Comp
L C C?
U 1 1 54768EE6
P 9150 3300
F 0 "C?" H 9150 3400 40  0000 L CNN
F 1 "180" H 9156 3215 40  0000 L CNN
F 2 "" H 9188 3150 30  0000 C CNN
F 3 "" H 9150 3300 60  0000 C CNN
        1    9150 3300
        0    1    1    0   
$EndComp
$Comp
L C C?
U 1 1 54768FA2
P 8300 4250
F 0 "C?" H 8300 4350 40  0000 L CNN
F 1 "240" H 8306 4165 40  0000 L CNN
F 2 "" H 8338 4100 30  0000 C CNN
F 3 "" H 8300 4250 60  0000 C CNN
        1    8300 4250
        1    0    0    -1  
$EndComp
$Comp
L R R?
U 1 1 547690B2
P 9150 4700
F 0 "R?" V 9230 4700 40  0000 C CNN
F 1 "2k4" V 9157 4701 40  0000 C CNN
F 2 "" V 9080 4700 30  0000 C CNN
F 3 "" H 9150 4700 30  0000 C CNN
        1    9150 4700
        0    1    1    0   
$EndComp
$Comp
L R R?
U 1 1 54769114
P 8650 5000
F 0 "R?" V 8730 5000 40  0000 C CNN
F 1 "2k4" V 8657 5001 40  0000 C CNN
F 2 "" V 8580 5000 30  0000 C CNN
F 3 "" H 8650 5000 30  0000 C CNN
        1    8650 5000
        1    0    0    -1  
$EndComp
$Comp
L R R?
U 1 1 54769180
P 10400 4400
F 0 "R?" V 10480 4400 40  0000 C CNN
F 1 "10k" V 10407 4401 40  0000 C CNN
F 2 "" V 10330 4400 30  0000 C CNN
F 3 "" H 10400 4400 30  0000 C CNN
        1    10400 4400
        1    0    0    -1  
$EndComp
$Comp
L C C?
U 1 1 547691BD
P 10100 4050
F 0 "C?" H 10100 4150 40  0000 L CNN
F 1 "330k" H 10106 3965 40  0000 L CNN
F 2 "" H 10138 3900 30  0000 C CNN
F 3 "" H 10100 4050 60  0000 C CNN
        1    10100 4050
        0    1    1    0   
$EndComp
$Comp
L CONN1_1 J?
U 1 1 5476968B
P 950 2200
F 0 "J?" H 1000 2250 50  0000 C CNN
F 1 "CONN1_1" H 1050 2150 40  0000 C CNN
F 2 "" H 1000 2150 60  0000 C CNN
F 3 "" H 1000 2150 60  0000 C CNN
        1    950  2200
        0    -1   -1   0   
$EndComp
$Comp
L C C?
U 1 1 54769B26
P 2950 4250
F 0 "C?" H 2950 4350 40  0000 L CNN
F 1 "2" H 2956 4165 40  0000 L CNN
F 2 "" H 2988 4100 30  0000 C CNN
F 3 "" H 2950 4250 60  0000 C CNN
        1    2950 4250
        1    0    0    -1  
$EndComp
Wire Wire Line
        900  2500 900  2600
Wire Wire Line
        900  3100 900  3350
Wire Wire Line
        900  3850 900  4300
$Comp
L GND #PWR?
U 1 1 54769DCA
P 900 4850
F 0 "#PWR?" H 900 4850 30  0001 C CNN
F 1 "GND" H 900 4780 30  0001 C CNN
F 2 "" H 900 4850 60  0000 C CNN
F 3 "" H 900 4850 60  0000 C CNN
        1    900  4850
        1    0    0    -1  
$EndComp
Wire Wire Line
        900  4850 900  4700
Wire Wire Line
        1100 4200 900  4200
Connection ~ 900  4200
Wire Wire Line
        900  3200 1300 3200
Wire Wire Line
        1300 3200 1300 3400
Connection ~ 900  3200
$Comp
L V- #PWR?
U 1 1 54769F01
P 1300 3850
F 0 "#PWR?" H 1300 3950 30  0001 C CNN
F 1 "V-" H 1300 3960 30  0000 C CNN
F 2 "" H 1300 3850 60  0000 C CNN
F 3 "" H 1300 3850 60  0000 C CNN
        1    1300 3850
        -1   0    0    1   
$EndComp
Wire Wire Line
        1300 3850 1300 3800
Wire Wire Line
        1500 4200 1750 4200
Wire Wire Line
        2150 3850 2150 3700
Wire Wire Line
        2150 3200 2150 3050
$Comp
L V+ #PWR?
U 1 1 5476A0F5
P 2150 2500
F 0 "#PWR?" H 2150 2600 30  0001 C CNN
F 1 "V+" H 2150 2610 30  0000 C CNN
F 2 "" H 2150 2500 60  0000 C CNN
F 3 "" H 2150 2500 60  0000 C CNN
        1    2150 2500
        1    0    0    -1  
$EndComp
Wire Wire Line
        2150 2550 2150 2500
Wire Wire Line
        2150 3150 2650 3150
Wire Wire Line
        2650 3150 2650 3200
Connection ~ 2150 3150
Connection ~ 2150 3750
Wire Wire Line
        2650 4000 2650 3700
Wire Wire Line
        2650 3950 3250 3950
Connection ~ 2650 3950
Wire Wire Line
        2950 4050 2950 3950
Connection ~ 2950 3950
$Comp
L V- #PWR?
U 1 1 5476A75B
P 2150 4650
F 0 "#PWR?" H 2150 4750 30  0001 C CNN
F 1 "V-" H 2150 4760 30  0000 C CNN
F 2 "" H 2150 4650 60  0000 C CNN
F 3 "" H 2150 4650 60  0000 C CNN
        1    2150 4650
        -1   0    0    1   
$EndComp
Wire Wire Line
        2150 4650 2150 4550
$Comp
L V- #PWR?
U 1 1 5476A8CC
P 2650 4650
F 0 "#PWR?" H 2650 4750 30  0001 C CNN
F 1 "V-" H 2650 4760 30  0000 C CNN
F 2 "" H 2650 4650 60  0000 C CNN
F 3 "" H 2650 4650 60  0000 C CNN
        1    2650 4650
        -1   0    0    1   
$EndComp
$Comp
L V- #PWR?
U 1 1 5476A8F5
P 2950 4650
F 0 "#PWR?" H 2950 4750 30  0001 C CNN
F 1 "V-" H 2950 4760 30  0000 C CNN
F 2 "" H 2950 4650 60  0000 C CNN
F 3 "" H 2950 4650 60  0000 C CNN
        1    2950 4650
        -1   0    0    1   
$EndComp
Wire Wire Line
        2650 4650 2650 4500
Wire Wire Line
        2950 4650 2950 4450
$Comp
L V- #PWR?
U 1 1 5476A991
P 5600 3450
F 0 "#PWR?" H 5600 3550 30  0001 C CNN
F 1 "V-" H 5600 3560 30  0000 C CNN
F 2 "" H 5600 3450 60  0000 C CNN
F 3 "" H 5600 3450 60  0000 C CNN
        1    5600 3450
        1    0    0    -1  
$EndComp
Wire Wire Line
        3650 4300 3650 4250
Wire Wire Line
        3250 3750 2150 3750
$Comp
L V+ #PWR?
U 1 1 5476AB8C
P 3650 3400
F 0 "#PWR?" H 3650 3500 30  0001 C CNN
F 1 "V+" H 3650 3510 30  0000 C CNN
F 2 "" H 3650 3400 60  0000 C CNN
F 3 "" H 3650 3400 60  0000 C CNN
        1    3650 3400
        1    0    0    -1  
$EndComp
Wire Wire Line
        3650 3450 3650 3400
$Comp
L C C?
U 1 1 5476AC2D
P 4550 3850
F 0 "C?" H 4550 3950 40  0000 L CNN
F 1 "330k" H 4556 3765 40  0000 L CNN
F 2 "" H 4588 3700 30  0000 C CNN
F 3 "" H 4550 3850 60  0000 C CNN
        1    4550 3850
        0    1    1    0   
$EndComp
$Comp
L R R?
U 1 1 5476AC84
P 4850 4150
F 0 "R?" V 4930 4150 40  0000 C CNN
F 1 "3k3" V 4857 4151 40  0000 C CNN
F 2 "" V 4780 4150 30  0000 C CNN
F 3 "" H 4850 4150 30  0000 C CNN
        1    4850 4150
        1    0    0    -1  
$EndComp
Wire Wire Line
        1650 4200 1650 5000
Wire Wire Line
        1650 5000 3450 5000
Connection ~ 1650 4200
Wire Wire Line
        4250 3850 4350 3850
Wire Wire Line
        4300 3850 4300 5000
Wire Wire Line
        4300 5000 3950 5000
Wire Wire Line
        3900 4700 4300 4700
Connection ~ 4300 4700
Wire Wire Line
        3500 4700 3250 4700
Wire Wire Line
        3250 4700 3250 5000
Connection ~ 3250 5000
Connection ~ 4300 3850
Wire Wire Line
        4750 3850 5200 3850
Wire Wire Line
        4850 3850 4850 3900
$Comp
L GND #PWR?
U 1 1 5476B3F0
P 4850 4450
F 0 "#PWR?" H 4850 4450 30  0001 C CNN
F 1 "GND" H 4850 4380 30  0001 C CNN
F 2 "" H 4850 4450 60  0000 C CNN
F 3 "" H 4850 4450 60  0000 C CNN
        1    4850 4450
        1    0    0    -1  
$EndComp
$Comp
L AD8692 U?
U 1 1 5476BDEA
P 5700 3950
F 0 "U?" H 5850 4250 70  0000 C CNN
F 1 "AD8692" H 5850 4150 70  0000 C CNN
F 2 "" H 5700 3950 60  0000 C CNN
F 3 "" H 5700 3950 60  0000 C CNN
        1    5700 3950
        1    0    0    -1  
$EndComp
$Comp
L AD8692 U?
U 2 1 54763079
P 9250 4050
F 0 "U?" H 9400 4350 70  0000 C CNN
F 1 "AD8692" H 9400 4250 70  0000 C CNN
F 2 "" H 9250 4050 60  0000 C CNN
F 3 "" H 9250 4050 60  0000 C CNN
        2    9250 4050
        1    0    0    -1  
$EndComp
Connection ~ 4850 3850
Wire Wire Line
        6200 3950 7100 3950
Wire Wire Line
        6450 3950 6450 4000
Wire Wire Line
        5200 4050 5200 4550
Wire Wire Line
        5200 4550 6900 4550
Wire Wire Line
        6450 4500 6450 4650
Connection ~ 6450 4550
Connection ~ 6450 3950
Wire Wire Line
        6900 4050 6900 3950
Connection ~ 6900 3950
Wire Wire Line
        6900 4550 6900 4450
Wire Wire Line
        7600 3950 7750 3950
Wire Wire Line
        8250 3950 8750 3950
Wire Wire Line
        8300 4050 8300 3950
Connection ~ 8300 3950
Wire Wire Line
        8650 4750 8650 4150
Wire Wire Line
        8650 4150 8750 4150
Wire Wire Line
        8900 4700 8650 4700
Connection ~ 8650 4700
Wire Wire Line
        9750 4050 9900 4050
Wire Wire Line
        9400 4700 9800 4700
Wire Wire Line
        9800 4700 9800 3300
Connection ~ 9800 4050
Wire Wire Line
        7650 3950 7650 3300
Wire Wire Line
        7650 3300 8950 3300
Connection ~ 7650 3950
Wire Wire Line
        9800 3300 9350 3300
Wire Wire Line
        10300 4050 10650 4050
Wire Wire Line
        10400 4150 10400 4050
Connection ~ 10400 4050
$Comp
L GND #PWR?
U 1 1 547647C3
P 10400 4750
F 0 "#PWR?" H 10400 4750 30  0001 C CNN
F 1 "GND" H 10400 4680 30  0001 C CNN
F 2 "" H 10400 4750 60  0000 C CNN
F 3 "" H 10400 4750 60  0000 C CNN
        1    10400 4750
        1    0    0    -1  
$EndComp
Wire Wire Line
        10400 4750 10400 4650
$Comp
L CONN1_1 J?
U 1 1 54764983
P 10950 4100
F 0 "J?" H 11000 4150 50  0000 C CNN
F 1 "OUT" H 11050 4050 40  0000 C CNN
F 2 "" H 11000 4050 60  0000 C CNN
F 3 "" H 11000 4050 60  0000 C CNN
        1    10950 4100
        1    0    0    -1  
$EndComp
$Comp
L GND #PWR?
U 1 1 54764BD3
P 8650 5300
F 0 "#PWR?" H 8650 5300 30  0001 C CNN
F 1 "GND" H 8650 5230 30  0001 C CNN
F 2 "" H 8650 5300 60  0000 C CNN
F 3 "" H 8650 5300 60  0000 C CNN
        1    8650 5300
        1    0    0    -1  
$EndComp
$Comp
L GND #PWR?
U 1 1 54764C98
P 6450 5200
F 0 "#PWR?" H 6450 5200 30  0001 C CNN
F 1 "GND" H 6450 5130 30  0001 C CNN
F 2 "" H 6450 5200 60  0000 C CNN
F 3 "" H 6450 5200 60  0000 C CNN
        1    6450 5200
        1    0    0    -1  
$EndComp
Wire Wire Line
        8650 5300 8650 5250
Wire Wire Line
        6450 5200 6450 5150
Wire Wire Line
        4850 4450 4850 4400
$Comp
L GND #PWR?
U 1 1 54765DA1
P 8300 4500
F 0 "#PWR?" H 8300 4500 30  0001 C CNN
F 1 "GND" H 8300 4430 30  0001 C CNN
F 2 "" H 8300 4500 60  0000 C CNN
F 3 "" H 8300 4500 60  0000 C CNN
        1    8300 4500
        1    0    0    -1  
$EndComp
Wire Wire Line
        8300 4500 8300 4450
$EndSCHEMATC