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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: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:wacom-mouse-cache
EELAYER 25 0
EELAYER END
$Descr USLetter 8500 11000 portrait
encoding utf-8
Sheet 4 4
Title "EC-155 Mouse, Quadrature Decoder"
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
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F 3 "" H 5050 6900 50 0000 C CNN
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$EndComp
$Comp
L 74LS74 IC3
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F 0 "IC3" H 5200 5600 50 0000 C CNN
F 1 "74LV74" H 5350 5005 50 0000 C CNN
F 2 "" H 5050 5300 50 0000 C CNN
F 3 "" H 5050 5300 50 0000 C CNN
2 5050 5300
1 0 0 -1
$EndComp
$Comp
L 74LS74 IC4
U 2 1 579F72F8
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F 0 "IC4" H 5200 3400 50 0000 C CNN
F 1 "74LV74" H 5350 2805 50 0000 C CNN
F 2 "" H 5050 3100 50 0000 C CNN
F 3 "" H 5050 3100 50 0000 C CNN
2 5050 3100
1 0 0 -1
$EndComp
$Comp
L 7402 IC6
U 1 1 579F7337
P 2200 8000
F 0 "IC6" H 2200 8050 50 0000 C CNN
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F 2 "" H 2200 8000 50 0000 C CNN
F 3 "" H 2200 8000 50 0000 C CNN
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$EndComp
$Comp
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F 3 "" H 3550 6100 50 0000 C CNN
2 3550 6100
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$EndComp
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1 0 0 -1
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$EndComp
$Comp
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F 3 "" H 6350 6100 50 0000 C CNN
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$EndComp
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6 3200 1750
1 0 0 -1
$EndComp
$Comp
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F 1 "VCC" H 5050 3800 50 0000 C CNN
F 2 "" H 5050 3650 50 0000 C CNN
F 3 "" H 5050 3650 50 0000 C CNN
1 5050 3650
-1 0 0 1
$EndComp
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F 3 "" H 3600 8250 50 0000 C CNN
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$EndComp
$Comp
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$EndComp
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1 3300 8500
1 0 0 -1
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1 2950 8000
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$EndComp
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1 5050 1200
1 0 0 -1
$EndComp
$Comp
L VCC #PWR?
U 1 1 57A11609
P 5050 4750
F 0 "#PWR?" H 5050 4600 50 0001 C CNN
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F 3 "" H 5050 4750 50 0000 C CNN
1 5050 4750
1 0 0 -1
$EndComp
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L VCC #PWR?
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LOAD_ENABLE
NoConn ~ 5650 7100
NoConn ~ 5650 1550
$Comp
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$EndComp
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NoConn ~ 5650 5100
Text HLabel 7100 2400 2 60 Output ~ 0
SCROLL_UP
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QUADRATURE_A
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$EndComp
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QUADRATURE_B
$Comp
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1 0 0 -1
$EndComp
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 6950 2400
Connection ~ 7000 6100
Wire Wire Line
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Connection ~ 2800 6200
Wire Wire Line
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Connection ~ 2600 1750
Connection ~ 2600 3100
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 4050 3100
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 5050 2450
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 4350 5100
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 3300 8000
Wire Wire Line
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Wire Wire Line
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Connection ~ 3600 8000
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$EndSCHEMATC