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EESchema Schematic File Version 2
LIBS:bekicadlib
LIBS:power
EELAYER 25 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8
Sheet 1 1
Title "I2CU"
Date "18 aug 2015"
Rev "PRE-B"
Comp "Bradford Embedded"
Comment1 "(C) 2015 Andrew Bradford"
Comment2 "Licensed under the CERN OHL v1.2"
Comment3 ""
Comment4 ""
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P 5650 3100
F 0 "#PWR15" H 5500 3100 30 0001 C CNN
F 1 "GND" H 5650 2975 40 0000 C CNN
F 2 "~" H 5650 3100 60 0000 C CNN
F 3 "~" H 5650 3100 60 0000 C CNN
1 5650 3100
1 0 0 -1
$EndComp
$Comp
L GND #PWR12
U 1 1 55C9DB38
P 4650 3100
F 0 "#PWR12" H 4500 3100 30 0001 C CNN
F 1 "GND" H 4650 2975 40 0000 C CNN
F 2 "~" H 4650 3100 60 0000 C CNN
F 3 "~" H 4650 3100 60 0000 C CNN
1 4650 3100
1 0 0 -1
$EndComp
$Comp
L +5V #PWR13
U 1 1 55C9DBBA
P 5450 1950
F 0 "#PWR13" H 5450 1910 30 0001 C CNN
F 1 "+5V" H 5450 2060 40 0000 C CNN
F 2 "~" H 5450 1950 60 0000 C CNN
F 3 "~" H 5450 1950 60 0000 C CNN
1 5450 1950
1 0 0 -1
$EndComp
$Comp
L CAP C9
U 1 1 55C9DBC7
P 5400 2250
F 0 "C9" H 5400 2350 40 0000 L CNN
F 1 "1U" H 5400 2200 40 0000 L CNN
F 2 "~" H 5400 2250 60 0000 C CNN
F 3 "~" H 5400 2250 60 0000 C CNN
1 5400 2250
1 0 0 -1
$EndComp
$Comp
L GND #PWR14
U 1 1 55C9DBCD
P 5450 2500
F 0 "#PWR14" H 5300 2500 30 0001 C CNN
F 1 "GND" H 5450 2375 40 0000 C CNN
F 2 "~" H 5450 2500 60 0000 C CNN
F 3 "~" H 5450 2500 60 0000 C CNN
1 5450 2500
1 0 0 -1
$EndComp
$Comp
L CAP C8
U 1 1 55C9DF65
P 4950 2300
F 0 "C8" H 4950 2400 40 0000 L CNN
F 1 "0.1U" H 4950 2250 40 0000 L CNN
F 2 "~" H 4950 2300 60 0000 C CNN
F 3 "~" H 4950 2300 60 0000 C CNN
1 4950 2300
1 0 0 -1
$EndComp
$Comp
L R R4
U 1 1 55C9E07C
P 4650 3350
F 0 "R4" H 4650 3275 40 0000 C CNN
F 1 "220K" H 4650 3350 30 0000 C CNN
F 2 "~" H 4650 3325 60 0000 C CNN
F 3 "~" H 4650 3325 60 0000 C CNN
1 4650 3350
1 0 0 -1
$EndComp
$Comp
L R R3
U 1 1 55C9E095
P 4000 3200
F 0 "R3" H 4000 3125 40 0000 C CNN
F 1 "825K" H 4000 3200 30 0000 C CNN
F 2 "~" H 4000 3175 60 0000 C CNN
F 3 "~" H 4000 3175 60 0000 C CNN
1 4000 3200
0 -1 -1 0
$EndComp
$Comp
L GND #PWR10
U 1 1 55C9E123
P 4000 3450
F 0 "#PWR10" H 3850 3450 30 0001 C CNN
F 1 "GND" H 4000 3325 40 0000 C CNN
F 2 "~" H 4000 3450 60 0000 C CNN
F 3 "~" H 4000 3450 60 0000 C CNN
1 4000 3450
1 0 0 -1
$EndComp
Text Notes 3550 2300 0 60 ~ 0
GAIN OF 1.266\n4.096 V -> 5.188 V
Text Label 6050 5700 2 60 ~ 0
LED_I2C
Text Label 6050 5500 2 60 ~ 0
ADC1_IN
Text Label 6050 5400 2 60 ~ 0
GPIO
$Comp
L R R8
U 1 1 55CC6D22
P 7900 2750
F 0 "R8" H 7900 2675 40 0000 C CNN
F 1 "220K" H 7900 2750 30 0000 C CNN
F 2 "~" H 7900 2725 60 0000 C CNN
F 3 "~" H 7900 2725 60 0000 C CNN
1 7900 2750
0 -1 -1 0
$EndComp
$Comp
L R R9
U 1 1 55CC6D2F
P 7900 3650
F 0 "R9" H 7900 3575 40 0000 C CNN
F 1 "825K" H 7900 3650 30 0000 C CNN
F 2 "~" H 7900 3625 60 0000 C CNN
F 3 "~" H 7900 3625 60 0000 C CNN
1 7900 3650
0 -1 -1 0
$EndComp
$Comp
L GND #PWR21
U 1 1 55CC6D37
P 7900 3900
F 0 "#PWR21" H 7750 3900 30 0001 C CNN
F 1 "GND" H 7900 3775 40 0000 C CNN
F 2 "~" H 7900 3900 60 0000 C CNN
F 3 "~" H 7900 3900 60 0000 C CNN
1 7900 3900
1 0 0 -1
$EndComp
Text Label 7450 3400 0 60 ~ 0
ADC1_IN
Text Notes 6900 3850 0 60 ~ 0
ADC1_IN WILL BE\n79% OF VOUT\n5.191 V => 4.096 V
$Comp
L CAP C4
U 1 1 55CC737F
P 3650 5650
F 0 "C4" H 3650 5750 40 0000 L CNN
F 1 "0.1U" H 3650 5600 40 0000 L CNN
F 2 "~" H 3650 5650 60 0000 C CNN
F 3 "~" H 3650 5650 60 0000 C CNN
1 3650 5650
1 0 0 -1
$EndComp
$Comp
L CAP C6
U 1 1 55CC75C4
P 4000 5650
F 0 "C6" H 4000 5750 40 0000 L CNN
F 1 "0.1U" H 4000 5600 40 0000 L CNN
F 2 "~" H 4000 5650 60 0000 C CNN
F 3 "~" H 4000 5650 60 0000 C CNN
1 4000 5650
1 0 0 -1
$EndComp
$Comp
L CAP C7
U 1 1 55CC75CA
P 4150 5650
F 0 "C7" H 4150 5750 40 0000 L CNN
F 1 "0.1U" H 4150 5600 40 0000 L CNN
F 2 "~" H 4150 5650 60 0000 C CNN
F 3 "~" H 4150 5650 60 0000 C CNN
1 4150 5650
1 0 0 -1
$EndComp
$Comp
L LED-GRN D3
U 1 1 55CC7B4B
P 7150 5050
F 0 "D3" H 7150 5150 50 0000 C CNN
F 1 "LED-GRN" H 7150 4950 50 0000 C CNN
F 2 "~" H 7150 5050 60 0000 C CNN
F 3 "~" H 7150 5050 60 0000 C CNN
1 7150 5050
0 1 1 0
$EndComp
$Comp
L GND #PWR17
U 1 1 55CC7B5A
P 7150 5300
F 0 "#PWR17" H 7000 5300 30 0001 C CNN
F 1 "GND" H 7150 5175 40 0000 C CNN
F 2 "~" H 7150 5300 60 0000 C CNN
F 3 "~" H 7150 5300 60 0000 C CNN
1 7150 5300
1 0 0 -1
$EndComp
$Comp
L R R6
U 1 1 55CC7C17
P 7150 4600
F 0 "R6" H 7150 4525 40 0000 C CNN
F 1 "220" H 7150 4600 30 0000 C CNN
F 2 "~" H 7150 4575 60 0000 C CNN
F 3 "~" H 7150 4575 60 0000 C CNN
1 7150 4600
0 -1 -1 0
$EndComp
Text Label 6600 4350 0 60 ~ 0
LED_I2C
Text Notes 600 850 0 60 ~ 0
NOTE 1: ALL LEDS ARE GREEN 0603\n WITH 35 mcd @ 20 mA\n 2.0 V DROP @ 20 mA
$Comp
L FET-N U4
U 1 1 55CDB2E0
P 8000 1850
F 0 "U4" H 8075 2000 60 0000 C CNN
F 1 "FET-N" H 8150 1675 60 0000 C CNN
F 2 "~" H 7925 1850 60 0000 C CNN
F 3 "~" H 7925 1850 60 0000 C CNN
1 8000 1850
1 0 0 -1
$EndComp
$Comp
L GND #PWR23
U 1 1 55CDB2EF
P 8000 2100
F 0 "#PWR23" H 7850 2100 30 0001 C CNN
F 1 "GND" H 8000 1975 40 0000 C CNN
F 2 "~" H 8000 2100 60 0000 C CNN
F 3 "~" H 8000 2100 60 0000 C CNN
1 8000 2100
1 0 0 -1
$EndComp
$Comp
L LED-GRN D4
U 1 1 55CDB2FE
P 8000 1400
F 0 "D4" H 8000 1500 50 0000 C CNN
F 1 "LED-GRN" H 8000 1300 50 0000 C CNN
F 2 "~" H 8000 1400 60 0000 C CNN
F 3 "~" H 8000 1400 60 0000 C CNN
1 8000 1400
0 1 1 0
$EndComp
$Comp
L +5V #PWR22
U 1 1 55CDB30D
P 8000 700
F 0 "#PWR22" H 8000 660 30 0001 C CNN
F 1 "+5V" H 8000 810 40 0000 C CNN
F 2 "~" H 8000 700 60 0000 C CNN
F 3 "~" H 8000 700 60 0000 C CNN
1 8000 700
1 0 0 -1
$EndComp
$Comp
L R R10
U 1 1 55CDB628
P 8000 950
F 0 "R10" H 8000 875 40 0000 C CNN
F 1 "220" H 8000 950 30 0000 C CNN
F 2 "~" H 8000 925 60 0000 C CNN
F 3 "~" H 8000 925 60 0000 C CNN
1 8000 950
0 -1 -1 0
$EndComp
$Comp
L GND #PWR8
U 1 1 55CDB7BA
P 3650 5150
F 0 "#PWR8" H 3500 5150 30 0001 C CNN
F 1 "GND" H 3650 5025 40 0000 C CNN
F 2 "~" H 3650 5150 60 0000 C CNN
F 3 "~" H 3650 5150 60 0000 C CNN
1 3650 5150
1 0 0 -1
$EndComp
$Comp
L LED-GRN D2
U 1 1 55CDB7C0
P 3650 4900
F 0 "D2" H 3650 5000 50 0000 C CNN
F 1 "LED-GRN" H 3650 4800 50 0000 C CNN
F 2 "~" H 3650 4900 60 0000 C CNN
F 3 "~" H 3650 4900 60 0000 C CNN
1 3650 4900
0 1 1 0
$EndComp
$Comp
L R R2
U 1 1 55CDB7CE
P 3650 4450
F 0 "R2" H 3650 4375 40 0000 C CNN
F 1 "220" H 3650 4450 30 0000 C CNN
F 2 "~" H 3650 4425 60 0000 C CNN
F 3 "~" H 3650 4425 60 0000 C CNN
1 3650 4450
0 -1 -1 0
$EndComp
Text Label 6050 5600 2 60 ~ 0
DAC1_OUT
NoConn ~ 5800 5850
NoConn ~ 5800 5950
$Comp
L CAP C1
U 1 1 55D2FA21
P 1300 3600
F 0 "C1" H 1300 3700 40 0000 L CNN
F 1 "4.7N" H 1300 3550 40 0000 L CNN
F 2 "~" H 1300 3600 60 0000 C CNN
F 3 "~" H 1300 3600 60 0000 C CNN
1 1300 3600
0 -1 -1 0
$EndComp
$Comp
L R R1
U 1 1 55D2FA30
P 1300 3750
F 0 "R1" H 1300 3675 40 0000 C CNN
F 1 "1M" H 1300 3750 30 0000 C CNN
F 2 "~" H 1300 3725 60 0000 C CNN
F 3 "~" H 1300 3725 60 0000 C CNN
1 1300 3750
1 0 0 -1
$EndComp
$Comp
L SHLD #PWR2
U 1 1 55D2FA4E
P 1000 3850
F 0 "#PWR2" H 850 3850 30 0001 C CNN
F 1 "SHLD" H 1000 3725 40 0000 C CNN
F 2 "~" H 1000 3850 60 0000 C CNN
F 3 "~" H 1000 3850 60 0000 C CNN
1 1000 3850
1 0 0 -1
$EndComp
$Comp
L GND #PWR3
U 1 1 55D2FA5D
P 1600 3850
F 0 "#PWR3" H 1450 3850 30 0001 C CNN
F 1 "GND" H 1600 3725 40 0000 C CNN
F 2 "~" H 1600 3850 60 0000 C CNN
F 3 "~" H 1600 3850 60 0000 C CNN
1 1600 3850
1 0 0 -1
$EndComp
Text Notes 650 4250 0 60 ~ 0
RUN SHLD AROUND EXTERIOR\nOF PCB FOR ESD PROTECTION
Wire Wire Line
7700 6000 7800 6000
Connection ~ 7650 5550
Wire Wire Line
7650 5550 7650 5500
Connection ~ 7250 6100
Wire Wire Line
7250 6000 7250 6100
Connection ~ 7100 6200
Wire Wire Line
7100 6000 7100 6200
Connection ~ 7250 5550
Wire Wire Line
7250 5550 7250 5600
Connection ~ 7500 5550
Wire Wire Line
7100 5600 7100 5550
Wire Wire Line
7100 5550 7700 5550
Wire Wire Line
7500 5550 7500 5600
Wire Wire Line
7500 5850 7500 5900
Wire Wire Line
8400 6600 8400 6550
Wire Wire Line
5650 6200 7800 6200
Wire Wire Line
5650 6100 7800 6100
Wire Wire Line
4400 6350 4450 6350
Wire Wire Line
4400 6400 4400 6350
Wire Wire Line
4450 5750 4300 5750
Connection ~ 2000 5750
Connection ~ 2100 5550
Wire Wire Line
2600 4800 3400 4800
Wire Wire Line
1850 4800 2300 4800
Wire Wire Line
3400 5550 3350 5550
Wire Wire Line
3400 4200 3400 5550
Wire Wire Line
3400 5750 3400 5800
Wire Wire Line
3350 5750 3400 5750
Wire Wire Line
2100 5550 2250 5550
Wire Wire Line
2100 4900 2100 6000
Wire Wire Line
1850 4900 2100 4900
Wire Wire Line
2000 5750 2250 5750
Wire Wire Line
2000 5000 2000 6150
Wire Wire Line
1850 5000 2000 5000
Connection ~ 1900 5200
Wire Wire Line
1850 5200 1900 5200
Wire Wire Line
1900 5100 1900 5250
Wire Wire Line
1850 5100 1900 5100
Connection ~ 700 5300
Wire Wire Line
700 5300 750 5300
Connection ~ 700 5200
Wire Wire Line
700 5200 750 5200
Connection ~ 700 5100
Wire Wire Line
700 5100 750 5100
Connection ~ 700 5000
Wire Wire Line
700 5000 750 5000
Connection ~ 700 4900
Wire Wire Line
750 4900 700 4900
Wire Wire Line
700 4800 700 5350
Wire Wire Line
750 4800 700 4800
Wire Wire Line
8950 2700 8850 2700
Wire Wire Line
8750 2600 8950 2600
Wire Wire Line
9750 6100 9750 3100
Wire Wire Line
9850 6200 9850 3000
Wire Wire Line
9000 6100 9750 6100
Wire Wire Line
9000 6200 9850 6200
Wire Wire Line
9950 2500 10300 2500
Wire Wire Line
10300 2500 10300 2650
Wire Wire Line
8600 2500 8950 2500
Wire Wire Line
9650 5550 9650 3200
Wire Wire Line
9100 5550 9100 6000
Wire Wire Line
9100 6000 9000 6000
Wire Wire Line
9450 6000 9450 6100
Connection ~ 9450 6100
Wire Wire Line
9600 6000 9600 6200
Connection ~ 9600 6200
Wire Wire Line
9600 5550 9600 5600
Wire Wire Line
9450 5550 9450 5600
Wire Wire Line
9250 5600 9250 5550
Wire Wire Line
8250 3700 8250 3650
Wire Wire Line
8250 3650 8300 3650
Wire Wire Line
8100 3450 8300 3450
Wire Wire Line
9400 3450 9750 3450
Connection ~ 9750 3450
Wire Wire Line
9400 3650 9850 3650
Connection ~ 9850 3650
Wire Wire Line
6950 2500 6950 2550
Wire Wire Line
5250 2700 5750 2700
Wire Wire Line
5500 2750 5500 2700
Connection ~ 5500 2700
Wire Wire Line
5500 3000 5500 3050
Wire Wire Line
5500 3050 5750 3050
Wire Wire Line
5750 3050 5750 2900
Wire Wire Line
5650 3050 5650 3100
Connection ~ 5650 3050
Wire Wire Line
4650 3050 4650 3100
Wire Wire Line
5750 2000 5750 2500
Wire Wire Line
4650 2050 5650 2050
Wire Wire Line
4650 2050 4650 2350
Wire Wire Line
4950 2400 4950 2450
Wire Wire Line
4950 2150 4950 2050
Connection ~ 4950 2050
Wire Wire Line
4100 2800 4000 2800
Wire Wire Line
4000 2800 4000 3000
Wire Wire Line
4000 3400 4000 3450
Wire Wire Line