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Updated board for Pentalogix.  
Michael DM Dryden committed
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EESchema Schematic File Version 2
LIBS:dstat
LIBS:dstat-mainboard-cache
EELAYER 25 0
EELAYER END
$Descr User 16999 10999
encoding utf-8
Sheet 1 1
Title "DStat Mainboard"
Date "8 sep 2014"
Rev "1.2"
Comp "Wheeler Microfluidics Laboratory"
Comment1 "©Michael D. M. Dryden 2014"
Comment2 "This documentation describes Open Hardware and is licensed under the CERN OHL v. 1.2."
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L C C44
U 1 1 50534D38
P 13375 1275
F 0 "C44" H 13425 1375 50  0000 L CNN
F 1 "10u" H 13425 1175 50  0000 L CNN
F 2 "SM0805" H 13425 1275 50  0001 C CNN
F 3 "" H 13375 1275 60  0001 C CNN
	1    13375 1275
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG01
U 1 1 5040FFA3
P 2125 925
F 0 "#FLG01" H 2125 1020 30  0001 C CNN
F 1 "PWR_FLAG" H 2125 1105 30  0000 C CNN
F 2 "" H 2125 925 60  0001 C CNN
F 3 "" H 2125 925 60  0001 C CNN
	1    2125 925 
	0    -1   -1   0   
$EndComp
NoConn ~ 12450 1925
NoConn ~ 12350 1925
$Comp
L GND #PWR02
U 1 1 503FE447
P 2525 925
F 0 "#PWR02" H 2525 925 30  0001 C CNN
F 1 "GND" H 2525 855 30  0001 C CNN
F 2 "" H 2525 925 60  0001 C CNN
F 3 "" H 2525 925 60  0001 C CNN
	1    2525 925 
	0    -1   -1   0   
$EndComp
$Comp
L C C5
U 1 1 503FE43F
P 2325 925
F 0 "C5" H 2375 1025 50  0000 L CNN
F 1 "10u" H 2375 825 50  0000 L CNN
F 2 "SM0805" H 2375 925 50  0001 C CNN
F 3 "" H 2325 925 60  0001 C CNN
	1    2325 925 
	0    1    1    0   
$EndComp
$Comp
L +3.3V #PWR03
U 1 1 503FE438
P 2125 825
F 0 "#PWR03" H 2125 785 30  0001 C CNN
F 1 "+3.3V" H 2125 935 30  0000 C CNN
F 2 "" H 2125 825 60  0001 C CNN
F 3 "" H 2125 825 60  0001 C CNN
	1    2125 825 
	1    0    0    -1  
$EndComp
$Comp
L INDUCTOR L1
U 1 1 503FE401
P 2125 1400
F 0 "L1" V 2075 1400 40  0000 C CNN
F 1 "10uH" V 2225 1400 40  0000 C CNN
F 2 "SM0805" V 2325 1400 40  0001 C CNN
F 3 "" H 2125 1400 60  0001 C CNN
	1    2125 1400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR04
U 1 1 503FE30B
P 2125 2950
F 0 "#PWR04" H 2125 2950 30  0001 C CNN
F 1 "GND" H 2125 2880 30  0001 C CNN
F 2 "" H 2125 2950 60  0001 C CNN
F 3 "" H 2125 2950 60  0001 C CNN
	1    2125 2950
	1    0    0    -1  
$EndComp
$Comp
L C C4
U 1 1 503FE2FC
P 2125 2750
F 0 "C4" H 2175 2850 50  0000 L CNN
F 1 "10n" H 2175 2650 50  0000 L CNN
F 2 "SM0805" H 2175 2750 50  0001 C CNN
F 3 "" H 2125 2750 60  0001 C CNN
	1    2125 2750
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR05
U 1 1 503FDBFD
P 5700 2925
F 0 "#PWR05" H 5700 2925 30  0001 C CNN
F 1 "GND" H 5700 2855 30  0001 C CNN
F 2 "" H 5700 2925 60  0001 C CNN
F 3 "" H 5700 2925 60  0001 C CNN
	1    5700 2925
	1    0    0    -1  
$EndComp
$Comp
L C C14
U 1 1 503FDBE4
P 5800 2425
F 0 "C14" H 5850 2525 50  0000 L CNN
F 1 "4.7n" H 5850 2325 50  0000 L CNN
F 2 "SM0805" H 5850 2425 50  0001 C CNN
F 3 "" H 5800 2425 60  0001 C CNN
	1    5800 2425
	1    0    0    -1  
$EndComp
$Comp
L R R7
U 1 1 503FDBD4
P 5575 2475
F 0 "R7" V 5655 2475 50  0000 C CNN
F 1 "1M" V 5575 2475 50  0000 C CNN
F 2 "SM0805" V 5675 2475 50  0001 C CNN
F 3 "" H 5575 2475 60  0001 C CNN
	1    5575 2475
	1    0    0    -1  
$EndComp
Text Label 15200 5125 0    60   ~ 0
DP
Text Label 15200 5025 0    60   ~ 0
DM
Text Label 3225 2300 0    60   ~ 0
DM
Text Label 3200 1050 0    60   ~ 0
DP
$Comp
L TPD2S017 U6
U 1 1 503FD827
P 3700 1750
F 0 "U6" H 3800 2050 60  0000 L CNN
F 1 "TPD2S017" H 3800 1450 60  0000 L CNN
F 2 "SOT23_6" H 3800 1550 60  0001 C CNN
F 3 "" H 3700 1750 60  0001 C CNN
	1    3700 1750
	-1   0    0    1   
$EndComp
$Comp
L +3.3V #PWR06
U 1 1 503FD64B
P 15350 1475
F 0 "#PWR06" H 15350 1435 30  0001 C CNN
F 1 "+3.3V" H 15350 1585 30  0000 C CNN
F 2 "" H 15350 1475 60  0001 C CNN
F 3 "" H 15350 1475 60  0001 C CNN
	1    15350 1475
	0    1    1    0   
$EndComp
$Comp
L C C51
U 1 1 503FD5DC
P 15100 1275
F 0 "C51" H 15150 1375 50  0000 L CNN
F 1 "10u" H 15150 1175 50  0000 L CNN
F 2 "SM0805" H 15150 1275 50  0001 C CNN
F 3 "" H 15100 1275 60  0001 C CNN
	1    15100 1275
	1    0    0    -1  
$EndComp
$Comp
L C C50
U 1 1 503FD5D3
P 14875 1275
F 0 "C50" H 14925 1375 50  0000 L CNN
F 1 "100n" H 14925 1175 50  0000 L CNN
F 2 "SM0805" H 14925 1275 50  0001 C CNN
F 3 "" H 14875 1275 60  0001 C CNN
	1    14875 1275
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR07
U 1 1 503FD4E2
P 13025 800
F 0 "#PWR07" H 13025 760 30  0001 C CNN
F 1 "+3.3V" H 13025 910 30  0000 C CNN
F 2 "" H 13025 800 60  0001 C CNN
F 3 "" H 13025 800 60  0001 C CNN
	1    13025 800 
	1    0    0    -1  
$EndComp
$Comp
L FILTER FB3
U 1 1 503FD4CB
P 13025 1150
F 0 "FB3" H 13025 1300 60  0000 C CNN
F 1 "FERRITE" H 13025 1050 60  0000 C CNN
F 2 "SM0805" H 13025 1150 60  0001 C CNN
F 3 "" H 13025 1150 60  0001 C CNN
	1    13025 1150
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR08
U 1 1 503FD47C
P 13925 925
F 0 "#PWR08" H 13925 925 30  0001 C CNN
F 1 "GND" H 13925 855 30  0001 C CNN
F 2 "" H 13925 925 60  0001 C CNN
F 3 "" H 13925 925 60  0001 C CNN
	1    13925 925 
	-1   0    0    1   
$EndComp
$Comp
L C C49
U 1 1 503FD436
P 14500 1275
F 0 "C49" H 14550 1375 50  0000 L CNN
F 1 "100n" H 14550 1175 50  0000 L CNN
F 2 "SM0805" H 14550 1275 50  0001 C CNN
F 3 "" H 14500 1275 60  0001 C CNN
	1    14500 1275
	1    0    0    -1  
$EndComp
$Comp
L C C48
U 1 1 503FD433
P 14275 1275
F 0 "C48" H 14325 1375 50  0000 L CNN
F 1 "100n" H 14325 1175 50  0000 L CNN
F 2 "SM0805" H 14325 1275 50  0001 C CNN
F 3 "" H 14275 1275 60  0001 C CNN
	1    14275 1275
	1    0    0    -1  
$EndComp
$Comp
L C C47
U 1 1 503FD42F
P 14050 1275
F 0 "C47" H 14100 1375 50  0000 L CNN
F 1 "100n" H 14100 1175 50  0000 L CNN
F 2 "SM0805" H 14100 1275 50  0001 C CNN
F 3 "" H 14050 1275 60  0001 C CNN
	1    14050 1275
	1    0    0    -1  
$EndComp
$Comp
L C C46
U 1 1 503FD427
P 13825 1275
F 0 "C46" H 13875 1375 50  0000 L CNN
F 1 "100n" H 13875 1175 50  0000 L CNN
F 2 "SM0805" H 13875 1275 50  0001 C CNN
F 3 "" H 13825 1275 60  0001 C CNN
	1    13825 1275
	1    0    0    -1  
$EndComp
$Comp
L C C45
U 1 1 503FD412
P 13600 1275
F 0 "C45" H 13650 1375 50  0000 L CNN
F 1 "100n" H 13650 1175 50  0000 L CNN
F 2 "SM0805" H 13650 1275 50  0001 C CNN
F 3 "" H 13600 1275 60  0001 C CNN
	1    13600 1275
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR09
U 1 1 503FD203
P 14100 6225
F 0 "#PWR09" H 14100 6225 30  0001 C CNN
F 1 "GND" H 14100 6155 30  0001 C CNN
F 2 "" H 14100 6225 60  0001 C CNN
F 3 "" H 14100 6225 60  0001 C CNN
	1    14100 6225
	1    0    0    -1  
$EndComp
Text Label 12350 2325 0    60   ~ 0
PDI_CLK
Text Label 12350 1475 0    60   ~ 0
PDI_DATA
$Comp
L GND #PWR010
U 1 1 503FD180
P 12450 2025
F 0 "#PWR010" H 12450 2025 30  0001 C CNN
F 1 "GND" H 12450 1955 30  0001 C CNN
F 2 "" H 12450 2025 60  0001 C CNN
F 3 "" H 12450 2025 60  0001 C CNN
	1    12450 2025
	0    1    1    0   
$EndComp
$Comp
L +3.3V #PWR011
U 1 1 503FD179
P 12450 1825
F 0 "#PWR011" H 12450 1785 30  0001 C CNN
F 1 "+3.3V" H 12450 1935 30  0000 C CNN
F 2 "" H 12450 1825 60  0001 C CNN
F 3 "" H 12450 1825 60  0001 C CNN
	1    12450 1825
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR012
U 1 1 503FCB4F
P 1525 2850
F 0 "#PWR012" H 1525 2850 30  0001 C CNN
F 1 "GND" H 1525 2780 30  0001 C CNN
F 2 "" H 1525 2850 60  0001 C CNN
F 3 "" H 1525 2850 60  0001 C CNN
	1    1525 2850
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR013
U 1 1 503FCB3D
P 925 2550
F 0 "#PWR013" H 925 2640 20  0001 C CNN
F 1 "+5V" H 925 2640 30  0000 C CNN
F 2 "" H 925 2550 60  0001 C CNN
F 3 "" H 925 2550 60  0001 C CNN
	1    925  2550
	0    -1   -1   0   
$EndComp
$Comp
L +5V #PWR014
U 1 1 503FCB37
P 925 2150
F 0 "#PWR014" H 925 2240 20  0001 C CNN
F 1 "+5V" H 925 2240 30  0000 C CNN
F 2 "" H 925 2150 60  0001 C CNN
F 3 "" H 925 2150 60  0001 C CNN
	1    925  2150
	0    -1   -1   0   
$EndComp
$Comp
L TPS79933 U1
U 1 1 503FC388
P 1525 2350
F 0 "U1" H 1675 2000 60  0000 C CNN
F 1 "TPS79933" H 1525 2700 60  0000 C CNN
F 2 "SOT23-5" H 1525 2800 60  0001 C CNN
F 3 "" H 1525 2350 60  0001 C CNN
	1    1525 2350
	1    0    0    -1  
$EndComp
$Comp
L AVR-PDI CON1
U 1 1 503EFD34
P 12400 1925
F 0 "CON1" H 12320 2165 50  0000 C CNN
F 1 "AVR-PDI" H 12160 1695 50  0000 L BNN
F 2 "pin_array_3x2" V 11880 1965 50  0001 C CNN
F 3 "" H 12400 1925 60  0001 C CNN
	1    12400 1925
	1    0    0    -1  
$EndComp
$Comp
L USB-MB-S USB1
U 1 1 503EFB96
P 4825 1950
F 0 "USB1" H 4575 1750 50  0000 C CNN
F 1 "USB-MB-S" H 4475 1650 50  0000 C CNN
F 2 "USB_MINI_B" H 4775 2500 50  0001 C CNN
F 3 "" H 4825 1950 60  0001 C CNN
	1    4825 1950
	1    0    0    -1  
$EndComp
$Comp
L ATXMEGA256A3U IC1
U 1 1 503EF797
P 14100 3475
F 0 "IC1" H 13200 5225 50  0000 L BNN
F 1 "ATXMEGA256A3U" H 14500 925 50  0000 L BNN
F 2 "TQFP_64" H 13350 975 50  0001 C CNN
F 3 "" H 14100 3475 60  0001 C CNN
	1    14100 3475
	1    0    0    -1  
$EndComp
$Comp
L C C55
U 1 1 5400DD2F
P 4400 2525
F 0 "C55" H 4400 2625 40  0000 L CNN
F 1 "10n" H 4406 2440 40  0000 L CNN
F 2 "SM0805" H 4438 2375 30  0000 C CNN
F 3 "~" H 4400 2525 60  0000 C CNN
	1    4400 2525
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR015
U 1 1 5400DF09
P 4800 3325
F 0 "#PWR015" H 4800 3325 30  0001 C CNN
F 1 "GND" H 4800 3255 30  0001 C CNN
F 2 "" H 4800 3325 60  0000 C CNN
F 3 "" H 4800 3325 60  0000 C CNN
	1    4800 3325
	0    -1   -1   0   
$EndComp
$Comp
L FILTER FB2
U 1 1 5400DF18
P 4725 2875
F 0 "FB2" H 4725 3025 60  0000 C CNN
F 1 "FILTER" H 4725 2775 60  0000 C CNN
F 2 "SM0805" H 4725 2875 60  0000 C CNN
F 3 "~" H 4725 2875 60  0000 C CNN
	1    4725 2875
	0    -1   -1   0   
$EndComp
Text Label 4200 2375 2    60   ~ 0
USB_VCC
Text Label 3700 1300 0    60   ~ 0
USB_GND
Text Label 4725 2525 0    60   ~ 0
USB_GND
$Comp
L FILTER FB1
U 1 1 5400E1DE
P 4200 2875
F 0 "FB1" H 4200 3025 60  0000 C CNN
F 1 "FILTER" H 4200 2775 60  0000 C CNN
F 2 "SM0805" H 4200 2875 60  0000 C CNN
F 3 "~" H 4200 2875 60  0000 C CNN
	1    4200 2875
	0    -1   -1   0   
$EndComp
$Comp
L C C52
U 1 1 5400E1FA
P 4400 3225
F 0 "C52" H 4400 3325 40  0000 L CNN
F 1 "100n" H 4406 3140 40  0000 L CNN
F 2 "SM0805" H 4438 3075 30  0000 C CNN
F 3 "~" H 4400 3225 60  0000 C CNN
	1    4400 3225
	0    -1   -1   0   
$EndComp
$Comp
L C C53
U 1 1 5400E200
P 4400 3450
F 0 "C53" H 4400 3550 40  0000 L CNN
F 1 "1u" H 4406 3365 40  0000 L CNN
F 2 "SM0805" H 4438 3300 30  0000 C CNN
F 3 "~" H 4400 3450 60  0000 C CNN
	1    4400 3450
	0    -1   -1   0   
$EndComp
$Comp
L +5V #PWR016
U 1 1 5400E549
P 3875 3275
F 0 "#PWR016" H 3875 3365 20  0001 C CNN
F 1 "+5V" H 3875 3365 30  0000 C CNN
F 2 "" H 3875 3275 60  0001 C CNN
F 3 "" H 3875 3275 60  0001 C CNN
	1    3875 3275
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG017
U 1 1 5400E6A1
P 3875 3350
F 0 "#FLG017" H 3875 3445 30  0001 C CNN
F 1 "PWR_FLAG" H 3875 3530 30  0000 C CNN
F 2 "" H 3875 3350 60  0001 C CNN
F 3 "" H 3875 3350 60  0001 C CNN
	1    3875 3350
	-1   0    0    1   
$EndComp
$Comp
L PWR_FLAG #FLG018
U 1 1 5400E7FE
P 4725 3325
F 0 "#FLG018" H 4725 3420 30  0001 C CNN
F 1 "PWR_FLAG" H 4725 3505 30  0000 C CNN
F 2 "" H 4725 3325 60  0001 C CNN
F 3 "" H 4725 3325 60  0001 C CNN
	1    4725 3325
	-1   0    0    1   
$EndComp
$Comp
L C C54
U 1 1 5400E81C
P 4400 3675
F 0 "C54" H 4400 3775 40  0000 L CNN
F 1 "47u" H 4406 3590 39  0000 L CNN
F 2 "SM1206" H 4438 3525 30  0000 C CNN
F 3 "~" H 4400 3675 60  0000 C CNN
	1    4400 3675
	0    -1   -1   0   
$EndComp
Text Notes 5575 750  0    60   ~ 0
Power/USB
$Comp
L MAX6126 U8
U 1 1 5400EF0B
P 7100 1775
F 0 "U8" H 7350 2175 60  0000 C CNN
F 1 "MAX6126" H 6850 2175 60  0000 C CNN
F 2 "so-8" H 7100 1775 60  0000 C CNN
F 3 "~" H 7100 1775 60  0000 C CNN
	1    7100 1775
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR019
U 1 1 5400EF5A
P 7100 1175
F 0 "#PWR019" H 7100 1135 30  0001 C CNN
F 1 "+3.3V" H 7100 1285 30  0000 C CNN
F 2 "" H 7100 1175 60  0001 C CNN
F 3 "" H 7100 1175 60  0001 C CNN
	1    7100 1175
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR020
U 1 1 5400EF60
P 7100 2525
F 0 "#PWR020" H 7100 2525 30  0001 C CNN
F 1 "GND" H 7100 2455 30  0001 C CNN
F 2 "" H 7100 2525 60  0000 C CNN
F 3 "" H 7100 2525 60  0000 C CNN
	1    7100 2525
	1    0    0    -1  
$EndComp
$Comp
L C C15
U 1 1 5400EF66
P 6300 1775
F 0 "C15" H 6350 1875 50  0000 L CNN
F 1 "4.7n" H 6350 1675 50  0000 L CNN
F 2 "SM0805" H 6350 1775 50  0001 C CNN
F 3 "" H 6300 1775 60  0001 C CNN
	1    6300 1775
	1    0    0    -1  
$EndComp
$Comp
L C C16
U 1 1 5400EF6C
P 6500 2125
F 0 "C16" H 6550 2225 50  0000 L CNN
F 1 "100n" H 6550 2025 50  0000 L CNN
F 2 "SM0805" H 6550 2125 50  0001 C CNN
F 3 "" H 6500 2125 60  0001 C CNN
	1    6500 2125
	1    0    0    -1  
$EndComp
$Comp
L C C25
U 1 1 5400EF72
P 8300 1775
F 0 "C25" H 8350 1875 50  0000 L CNN
F 1 "1u" H 8350 1675 50  0000 L CNN
F 2 "SM0805" H 8350 1775 50  0001 C CNN
F 3 "" H 8300 1775 60  0001 C CNN
	1    8300 1775
	1    0    0    -1  
$EndComp
$Comp
L +3VR #PWR021
U 1 1 5400F603
P 8650 1575
F 0 "#PWR021" H 8650 1535 30  0001 C CNN
F 1 "+3VR" H 8650 1685 30  0000 C CNN
F 2 "~" H 8650 1575 60  0000 C CNN
F 3 "~" H 8650 1575 60  0000 C CNN
	1    8650 1575
	1    0    0    -1  
$EndComp
$Comp
L MAX5491 UR2
U 1 1 5400F6B6
P 6625 3125
F 0 "UR2" H 6625 2975 60  0000 C CNN
F 1 "MAX5491" H 6625 3325 60  0000 C CNN
F 2 "sot23" H 6575 3225 60  0000 C CNN
F 3 "" H 6575 3225 60  0000 C CNN
	1    6625 3125
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR022
U 1 1 5400F6C3
P 6425 3250
F 0 "#PWR022" H 6425 3250 30  0001 C CNN
F 1 "GND" H 6425 3180 30  0001 C CNN
F 2 "" H 6425 3250 60  0000 C CNN
F 3 "" H 6425 3250 60  0000 C CNN
	1    6425 3250
	1    0    0    -1  
$EndComp
$Comp
L R R10
U 1 1 5400F860
P 7075 3075
F 0 "R10" V 7155 3075 40  0000 C CNN
F 1 "10k" V 7082 3076 40  0000 C CNN
F 2 "SM0805" V 7005 3075 30  0000 C CNN
F 3 "~" H 7075 3075 30  0000 C CNN
	1    7075 3075
	0    -1   -1   0   
$EndComp
$Comp
L C C19
U 1 1 5400F86D
P 7325 3275
F 0 "C19" H 7375 3375 50  0000 L CNN
F 1 "1u" H 7375 3175 50  0000 L CNN
F 2 "SM0805" H 7375 3275 50  0001 C CNN
F 3 "" H 7325 3275 60  0001 C CNN
	1    7325 3275
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR023
U 1 1 5400F873
P 7325 3475
F 0 "#PWR023" H 7325 3475 30  0001 C CNN
F 1 "GND" H 7325 3405 30  0001 C CNN
F 2 "" H 7325 3475 60  0000 C CNN
F 3 "" H 7325 3475 60  0000 C CNN
	1    7325 3475
	1    0    0    -1  
$EndComp
$Comp
L +3VR #PWR024
U 1 1 5400FB9C
P 6275 3025
F 0 "#PWR024" H 6275 2985 30  0001 C CNN
F 1 "+3VR" H 6275 3135 30  0000 C CNN
F 2 "~" H 6275 3025 60  0000 C CNN
F 3 "~" H 6275 3025 60  0000 C CNN
	1    6275 3025
	1    0    0    -1  
$EndComp
$Comp
L OPA350 U11
U 1 1 5400FC47
P 8025 3175
F 0 "U11" H 8025 3325 60  0000 L CNN
F 1 "OPA350" H 8025 3025 60  0000 L CNN
F 2 "SSOP8" H 8025 3175 60  0000 C CNN
F 3 "" H 8025 3175 60  0000 C CNN
	1    8025 3175
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR025
U 1 1 5400FE44
P 7925 3475
F 0 "#PWR025" H 7925 3475 30  0001 C CNN
F 1 "GND" H 7925 3405 30  0001 C CNN
F 2 "" H 7925 3475 60  0000 C CNN
F 3 "" H 7925 3475 60  0000 C CNN
	1    7925 3475
	1    0    0    -1  
$EndComp
$Comp
L +3.3V #PWR026
U 1 1 5400FE6F
P 7925 2675
F 0 "#PWR026" H 7925 2635 30  0001 C CNN
F 1 "+3.3V" H 7925 2785 30  0000 C CNN
F 2 "" H 7925 2675 60  0001 C CNN
F 3 "" H 7925 2675 60  0001 C CNN
	1    7925 2675
	1    0    0    -1  
$EndComp
$Comp
L C C22
U 1 1 5400FF4E
P 8125 2775
F 0 "C22" H 8175 2875 50  0000 L CNN
F 1 "100n" H 8175 2675 50  0000 L CNN
F 2 "SM0805" H 8175 2775 50  0001 C CNN
F 3 "" H 8125 2775 60  0001 C CNN
	1    8125 2775
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR027
U 1 1 5400FF60
P 8325 2775
F 0 "#PWR027" H 8325 2775 30  0001 C CNN
F 1 "GND" H 8325 2705 30  0001 C CNN
F 2 "" H 8325 2775 60  0000 C CNN
F 3 "" H 8325 2775 60  0000 C CNN
	1    8325 2775
	0    -1   -1   0   
$EndComp
$Comp
L C C29
U 1 1 5400FF66
P 8775 3375
F 0 "C29" H 8825 3475 50  0000 L CNN
F 1 "100n" H 8825 3275 50  0000 L CNN
F 2 "SM0805" H 8825 3375 50  0001 C CNN
F 3 "" H 8775 3375 60  0001 C CNN
	1    8775 3375
	1    0    0    -1  
$EndComp
$Comp
L C C31
U 1 1 5400FF6C
P 9050 3375
F 0 "C31" H 9100 3475 50  0000 L CNN
F 1 "1u" H 9100 3275 50  0000 L CNN
F 2 "SM0805" H 9100 3375 50  0001 C CNN
F 3 "" H 9050 3375 60  0001 C CNN
	1    9050 3375
	1    0    0    -1  
$EndComp
$Comp
L C C34
U 1 1 5400FF72
P 9325 3375
F 0 "C34" H 9375 3475 50  0000 L CNN
F 1 "47u" H 9375 3275 50  0000 L CNN
F 2 "SM1206" H 9375 3375 50  0001 C CNN
F 3 "" H 9325 3375 60  0001 C CNN
	1    9325 3375
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR028
U 1 1 5400FF78
P 8775 3575
F 0 "#PWR028" H 8775 3575 30  0001 C CNN
F 1 "GND" H 8775 3505 30  0001 C CNN
F 2 "" H 8775 3575 60  0000 C CNN
F 3 "" H 8775 3575 60  0000 C CNN
	1    8775 3575
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR029
U 1 1 5400FF7E
P 9050 3575
F 0 "#PWR029" H 9050 3575 30  0001 C CNN
F 1 "GND" H 9050 3505 30  0001 C CNN
F 2 "" H 9050 3575 60  0000 C CNN
F 3 "" H 9050 3575 60  0000 C CNN
	1    9050 3575
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR030
U 1 1 5400FF84
P 9325 3575
F 0 "#PWR030" H 9325 3575 30  0001 C CNN
F 1 "GND" H 9325 3505 30  0001 C CNN
F 2 "" H 9325 3575 60  0000 C CNN
F 3 "" H 9325 3575 60  0000 C CNN
	1    9325 3575
	1    0    0    -1  
$EndComp
$Comp
L +1.5VR #PWR031
U 1 1 540102AD
P 9325 3000
F 0 "#PWR031" H 9325 2960 30  0001 C CNN
F 1 "+1.5VR" H 9325 3110 30  0000 C CNN
F 2 "~" H 9325 3000 60  0000 C CNN
F 3 "~" H 9325 3000 60  0000 C CNN
	1    9325 3000
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG032
U 1 1 540102BC
P 9325 3000
F 0 "#FLG032" H 9325 3095 30  0001 C CNN
F 1 "PWR_FLAG" H 9325 3180 30  0000 C CNN
F 2 "" H 9325 3000 60  0000 C CNN
F 3 "" H 9325 3000 60  0000 C CNN
	1    9325 3000
	0    -1   -1   0   
$EndComp
Text Notes 8725 725  0    60   ~ 0
Reference Voltages
Text Label 1075 4550 2    60   ~ 0
PC7
Text Label 1075 4650 2    60   ~ 0
PC5
Text Label 1075 4750 2    60   ~ 0
PC4
$Comp
L +3.3V #PWR033
U 1 1 5401064D
P 1525 4175
F 0 "#PWR033" H 1525 4135 30  0001 C CNN
F 1 "+3.3V" H 1525 4285 30  0000 C CNN
F 2 "" H 1525 4175 60  0001 C CNN
F 3 "" H 1525 4175 60  0001 C CNN
	1    1525 4175
	1    0    0    -1  
$EndComp
$Comp
L C C1
U 1 1 54010664
P 1725 4225
F 0 "C1" H 1725 4325 40  0000 L CNN
F 1 "100n" H 1731 4140 40  0000 L CNN
F 2 "SM0805" H 1763 4075 30  0000 C CNN
F 3 "~" H 1725 4225 60  0000 C CNN
	1    1725 4225
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR034
U 1 1 5401077A
P 1925 4225
F 0 "#PWR034" H 1925 4225 30  0001 C CNN
F 1 "GND" H 1925 4155 30  0001 C CNN
F 2 "" H 1925 4225 60  0000 C CNN
F 3 "" H 1925 4225 60  0000 C CNN
	1    1925 4225
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR035
U 1 1 54010793
P 1525 5100
F 0 "#PWR035" H 1525 5100 30  0001 C CNN
F 1 "GND" H 1525 5030 30  0001 C CNN
F 2 "" H 1525 5100 60  0000 C CNN
F 3 "" H 1525 5100 60  0000 C CNN
	1    1525 5100
	1    0    0    -1  
$EndComp
$Comp
L C C2
U 1 1 54010799
P 1925 5100
F 0 "C2" H 1925 5200 40  0000 L CNN
F 1 "100n" H 1931 5015 40  0000 L CNN
F 2 "SM0805" H 1963 4950 30  0000 C CNN
F 3 "~" H 1925 5100 60  0000 C CNN
	1    1925 5100
	0    -1   -1   0   
$EndComp
$Comp
L MAX5443 U2
U 1 1 540107A1
P 1625 4700
F 0 "U2" H 1625 5050 40  0000 L BNN
F 1 "MAX5443" H 1625 5000 40  0000 L BNN
F 2 "SSOP8" H 1625 4700 30  0000 C CIN
F 3 "" H 1625 4700 60  0000 C CNN
	1    1625 4700
	1    0    0    -1  
$EndComp
$Comp
L C C3
U 1 1 540107AE
P 1925 5300
F 0 "C3" H 1925 5400 40  0000 L CNN
F 1 "1u" H 1931 5215 40  0000 L CNN
F 2 "SM0805" H 1963 5150 30  0000 C CNN
F 3 "~" H 1925 5300 60  0000 C CNN
	1    1925 5300
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR036
U 1 1 540108CB
P 2275 5200
F 0 "#PWR036" H 2275 5200 30  0001 C CNN
F 1 "GND" H 2275 5130 30  0001 C CNN
F 2 "" H 2275 5200 60  0000 C CNN
F 3 "" H 2275 5200 60  0000 C CNN
	1    2275 5200
	0    -1   -1   0   
$EndComp
$Comp
L +3VR #PWR037
U 1 1 54010958
P 1725 5475
F 0 "#PWR037" H 1725 5435 30  0001 C CNN
F 1 "+3VR" H 1725 5585 30  0000 C CNN
F 2 "~" H 1725 5475 60  0000 C CNN
F 3 "~" H 1725 5475 60  0000 C CNN
	1    1725 5475
	-1   0    0    1   
$EndComp
$Comp
L +3.3V #PWR038
U 1 1 54010B04
P 1075 4850
F 0 "#PWR038" H 1075 4810 30  0001 C CNN
F 1 "+3.3V" H 1075 4960 30  0000 C CNN
F 2 "" H 1075 4850 60  0001 C CNN
F 3 "" H 1075 4850 60  0001 C CNN
	1    1075 4850
	0    -1   -1   0   
$EndComp
$Comp
L MAX4477 U7
U 1 1 54010B8D
P 4000 4800
F 0 "U7" H 4000 4950 60  0000 L CNN
F 1 "MAX4477" H 4000 4650 60  0000 L CNN
F 2 "SSOP8" H 4000 4800 60  0000 C CNN
F 3 "" H 4000 4800 60  0000 C CNN
	1    4000 4800
	1    0    0    -1  
$EndComp
$Comp
L MAX4477 U7
U 2 1 54010BA4
P 6150 4900
F 0 "U7" H 6150 5050 60  0000 L CNN
F 1 "MAX4477" H 6150 4750 60  0000 L CNN
F 2 "SSOP8" H 6150 4900 60  0000 C CNN
F 3 "" H 6150 4900 60  0000 C CNN
	2    6150 4900
	1    0    0    -1  
$EndComp
$Comp
L R R1
U 1 1 54010BCC
P 2425 4700
F 0 "R1" V 2505 4700 40  0000 C CNN
F 1 "18.7k" V 2432 4701 40  0000 C CNN
F 2 "SM0805" V 2355 4700 30  0000 C CNN
F 3 "~" H 2425 4700 30  0000 C CNN
	1    2425 4700
	0    -1   -1   0   
$EndComp
$Comp
L R R2
U 1 1 54010BD9
P 3025 4700
F 0 "R2" V 3105 4700 40  0000 C CNN
F 1 "18.7k" V 3032 4701 40  0000 C CNN
F 2 "SM0805" V 2955 4700 30  0000 C CNN
F 3 "~" H 3025 4700 30  0000 C CNN
	1    3025 4700
	0    -1   -1   0   
$EndComp
$Comp
L C C7
U 1 1 54010CE8
P 2725 4900
F 0 "C7" H 2725 5000 40  0000 L CNN
F 1 "180p" H 2731 4815 40  0000 L CNN
F 2 "SM0805" H 2763 4750 30  0000 C CNN
F 3 "~" H 2725 4900 60  0000 C CNN
	1    2725 4900
	1    0    0    -1  
$EndComp
$Comp
L C C10
U 1 1 54010EB7
P 3450 4500
F 0 "C10" H 3450 4600 40  0000 L CNN
F 1 "160p" H 3456 4415 40  0000 L CNN
F 2 "SM0805" H 3488 4350 30  0000 C CNN
F 3 "~" H 3450 4500 60  0000 C CNN
	1    3450 4500
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR039
U 1 1 54010EC9
P 3900 5100
F 0 "#PWR039" H 3900 5100 30  0001 C CNN
F 1 "GND" H 3900 5030 30  0001 C CNN
F 2 "" H 3900 5100 60  0000 C CNN
F 3 "" H 3900 5100 60  0000 C CNN
	1    3900 5100
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR040
U 1 1 54010ECF
P 3450 4300
F 0 "#PWR040" H 3450 4300 30  0001 C CNN
F 1 "GND" H 3450 4230 30  0001 C CNN
F 2 "" H 3450 4300 60  0000 C CNN
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