Subversion Repositories – MLAB

(root)/Modules/AVR/AT32TQ14401A/SCH_PCB/audio-widget/CODEC/AK_km_AnalogInput.sch @ 3719

Rev 3681

EESchema Schematic File Version 1
LIBS:power,Avr32AK,device,transistors,conn,linear,regul,74xx,cmos4000,adc-dac,memory,xilinx,special,microcontrollers,dsp,microchip,analog_switches,motorola,texas,intel,audio,interface,digital-audio,philips,display,cypress,siliconi,contrib,valves,./AK_km.cache
EELAYER 23  0
EELAYER END
$Descr A4 11700 8267
Sheet 4 4
Title "AK_km ADC Analog Input"
Date "30 nov 2009"
Rev "V1.0"
Comp "Weyr Associates"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L GNDA #PWR025
U 1 1 4B132676
P 10100 5450
F 0 "#PWR025" H 10100 5450 40  0001 C C
F 1 "GNDA" H 10100 5380 40  0000 C C
        1    10100 5450
        1    0    0    -1  
$EndComp
$Comp
L GNDA #PWR026
U 1 1 4B132641
P 10100 4700
F 0 "#PWR026" H 10100 4700 40  0001 C C
F 1 "GNDA" H 10100 4630 40  0000 C C
        1    10100 4700
        1    0    0    -1  
$EndComp
$Comp
L GNDA #PWR027
U 1 1 4B1325A4
P 9600 1600
F 0 "#PWR027" H 9600 1600 40  0001 C C
F 1 "GNDA" H 9600 1530 40  0000 C C
        1    9600 1600
        1    0    0    -1  
$EndComp
$Comp
L GNDA #PWR028
U 1 1 4B132599
P 10100 6200
F 0 "#PWR028" H 10100 6200 40  0001 C C
F 1 "GNDA" H 10100 6130 40  0000 C C
        1    10100 6200
        1    0    0    -1  
$EndComp
$Comp
L GNDA #PWR029
U 1 1 4B132584
P 6350 5850
F 0 "#PWR029" H 6350 5850 40  0001 C C
F 1 "GNDA" H 6350 5780 40  0000 C C
        1    6350 5850
        1    0    0    -1  
$EndComp
Wire Wire Line
        2350 6950 2350 7150
$Comp
L GNDA #PWR030
U 1 1 4B132541
P 2350 7150
F 0 "#PWR030" H 2350 7150 40  0001 C C
F 1 "GNDA" H 2350 7080 40  0000 C C
        1    2350 7150
        1    0    0    -1  
$EndComp
Wire Wire Line
        6350 5650 6350 5850
Wire Wire Line
        2350 6400 2350 6550
Wire Wire Line
        10500 3500 10500 3600
Wire Wire Line
        5600 1700 5950 1700
Wire Wire Line
        5650 4400 5950 4400
Wire Wire Line
        4750 4200 3650 4200
Wire Wire Line
        4750 1500 3650 1500
Wire Wire Line
        2000 1400 1800 1400
Wire Wire Line
        1350 4100 1350 1400
Connection ~ 9700 4100
Wire Wire Line
        9700 4150 9700 4100
Connection ~ 10100 4600
Wire Wire Line
        9700 4550 9700 4600
Wire Wire Line
        9700 4600 10100 4600
Wire Wire Line
        10100 4700 10100 4550
Wire Wire Line
        10100 6200 10100 6050
Wire Wire Line
        9400 4850 10500 4850
Wire Wire Line
        9400 4100 10500 4100
Wire Wire Line
        10500 4100 10500 4200
Wire Wire Line
        8050 2350 8050 3000
Wire Wire Line
        8050 3000 10500 3000
Wire Wire Line
        8050 4650 8050 3200
Wire Wire Line
        7550 4300 8050 4300
Wire Wire Line
        6900 2750 6900 2250
Wire Wire Line
        10500 6100 9700 6100
Wire Wire Line
        9700 6100 9700 6050
Connection ~ 10100 5600
Wire Wire Line
        10100 5600 10100 5650
Connection ~ 10100 4850
Wire Wire Line
        10100 4900 10100 4850
Connection ~ 10100 5350
Wire Wire Line
        9700 5300 9700 5350
Wire Wire Line
        9700 5350 10100 5350
Wire Wire Line
        9450 5600 10500 5600
Connection ~ 3800 4200
Wire Wire Line
        3800 4200 3800 3600
Wire Wire Line
        3800 3600 3550 3600
Wire Wire Line
        1350 4300 1350 5350
Wire Wire Line
        1350 4300 1150 4300
Connection ~ 1900 5350
Connection ~ 1900 1400
Wire Wire Line
        1900 1400 1900 2650
Wire Wire Line
        5250 4200 5150 4200
Wire Wire Line
        3800 1500 3800 900 
Wire Wire Line
        3800 900  3550 900 
Wire Wire Line
        7050 1600 6750 1600
Connection ~ 6900 1600
Wire Wire Line
        6700 1100 6900 1100
Wire Wire Line
        6900 1100 6900 1600
Wire Wire Line
        7150 2000 7650 2000
Wire Wire Line
        7650 2000 7650 2750
Wire Wire Line
        8050 3200 10500 3200
Wire Wire Line
        8350 5450 8350 3300
Connection ~ 6900 2750
Connection ~ 7650 5450
Wire Wire Line
        7650 5450 7650 4700
Wire Wire Line
        7650 4700 7150 4700
Wire Wire Line
        6750 3800 6900 3800
Connection ~ 6900 4300
Wire Wire Line
        10500 4850 10500 4700
Wire Wire Line
        5750 4200 5950 4200
Connection ~ 8050 4300
Connection ~ 5950 4950
Wire Wire Line
        6650 4700 5950 4700
Wire Wire Line
        5950 4700 5950 5350
Wire Wire Line
        3050 3600 2650 3600
Wire Wire Line
        2650 3600 2650 4100
Wire Wire Line
        6350 3800 5950 3800
Wire Wire Line
        5950 4200 5950 3550
Wire Wire Line
        5950 3550 6650 3550
Connection ~ 5950 3800
Wire Wire Line
        7050 4300 6750 4300
Wire Wire Line
        6350 4950 5950 4950
Wire Wire Line
        7050 5450 6750 5450
Wire Wire Line
        8050 5050 8050 5450
Wire Wire Line
        8350 5450 7550 5450
Connection ~ 8050 5450
Wire Wire Line
        2500 4100 2850 4100
Connection ~ 2650 4100
Wire Wire Line
        5950 5350 5750 5350
Wire Wire Line
        5750 1500 5950 1500
Wire Wire Line
        2850 1600 2500 1600
Wire Wire Line
        8050 1950 8050 1600
Connection ~ 5950 2250
Wire Wire Line
        6650 2000 5950 2000
Wire Wire Line
        5950 2000 5950 2650
Wire Wire Line
        5150 2650 5250 2650
Wire Wire Line
        3050 900  2650 900 
Wire Wire Line
        2650 900  2650 1400
Wire Wire Line
        9600 1400 9600 1350
Wire Wire Line
        9600 1350 9900 1350
Wire Wire Line
        9900 950  9600 950 
Wire Wire Line
        9600 950  9600 900 
Wire Wire Line
        6300 1100 5950 1100
Wire Wire Line
        5950 1500 5950 850 
Connection ~ 5950 1100
Wire Wire Line
        6350 2250 5950 2250
Wire Wire Line
        6750 2750 7050 2750
Wire Wire Line
        7550 2750 8050 2750
Connection ~ 8050 2750
Wire Wire Line
        2500 1400 2850 1400
Connection ~ 2650 1400
Wire Wire Line
        5950 2650 5750 2650
Wire Wire Line
        8350 3300 10500 3300
Wire Wire Line
        9900 1550 9600 1550
Wire Wire Line
        9600 1550 9600 1600
Connection ~ 7650 4300
Wire Wire Line
        7650 4300 7650 3550
Wire Wire Line
        7650 3550 7150 3550
Wire Wire Line
        6750 4950 6900 4950
Wire Wire Line
        6900 4950 6900 5450
Connection ~ 6900 5450
Connection ~ 7650 2750
Wire Wire Line
        10500 2900 8350 2900
Wire Wire Line
        8350 2900 8350 1600
Wire Wire Line
        8350 1600 7550 1600
Connection ~ 8050 1600
Wire Wire Line
        7650 1600 7650 850 
Wire Wire Line
        7650 850  7150 850 
Connection ~ 7650 1600
Wire Wire Line
        6900 2250 6750 2250
Wire Wire Line
        5950 850  6650 850 
Wire Wire Line
        5250 1500 5150 1500
Connection ~ 3800 1500
Wire Wire Line
        5250 5350 5150 5350
Wire Wire Line
        1900 5350 1900 4100
Wire Wire Line
        1900 4100 2000 4100
Wire Wire Line
        1350 4100 1150 4100
Wire Wire Line
        9700 4850 9700 4900
Connection ~ 9700 4850
Wire Wire Line
        10500 5600 10500 5350
Wire Wire Line
        9700 5600 9700 5650
Connection ~ 9700 5600
Connection ~ 10100 6100
Wire Wire Line
        2850 4300 2500 4300
Wire Wire Line
        6900 3800 6900 4300
Wire Wire Line
        10100 5450 10100 5300
Wire Wire Line
        10100 4150 10100 4100
Connection ~ 10100 4100
Wire Wire Line
        1350 5350 1400 5350
Wire Wire Line
        1350 1400 1400 1400
Wire Wire Line
        1900 2650 4750 2650
Wire Wire Line
        4750 5350 1800 5350
Wire Wire Line
        5700 5550 5950 5550
Wire Wire Line
        5600 2850 5950 2850
Wire Wire Line
        6350 5250 6350 5150
Wire Wire Line
        6350 5150 6250 5150
Wire Wire Line
        6250 5150 6250 5100
$Comp
L +5V #PWR031
U 1 1 4B130FA6
P 6250 5100
F 0 "#PWR031" H 6250 5190 20  0001 C C
F 1 "+5V" H 6250 5190 30  0000 C C
        1    6250 5100
        1    0    0    -1  
$EndComp
$Comp
L +5V #PWR032
U 1 1 4B130F96
P 2350 6400
F 0 "#PWR032" H 2350 6490 20  0001 C C
F 1 "+5V" H 2350 6490 30  0000 C C
        1    2350 6400
        1    0    0    -1  
$EndComp
NoConn ~ 2750 6750
NoConn ~ 3700 6900
Text Label 5700 1700 0    60   ~
ABIAS+
Text Label 5700 2850 0    60   ~
ABIAS-
Text Label 5700 4400 0    60   ~
ABIAS+
Text Label 5750 5550 0    60   ~
ABIAS-
Text Label 9600 4850 0    60   ~
ABIAS-
Text Label 9550 4100 0    60   ~
ABIAS+
NoConn ~ 4500 6800
NoConn ~ 3700 6700
NoConn ~ 1950 6850
NoConn ~ 1950 6650
Text GLabel 1150 4300 0    60   Input
RIN
Text GLabel 1150 4100 0    60   Input
LIN
$Comp
L LT6232 U201
U 3 1 4A85B9A1
P 6300 1600
F 0 "U201" H 6600 1500 60  0000 C C
F 1 "LT6232" H 6700 1400 60  0000 C C
F 2 "SSOP-16" H 6700 1600 60  0000 C C
        3    6300 1600
        1    0    0    -1  
$EndComp
$Comp
L LT6232 U202
U 4 1 4B12DE7B
P 4050 6800
F 0 "U202" H 4350 6700 60  0000 C C
F 1 "LT6232" H 4450 6600 60  0000 C C
F 2 "SSOP-16" H 4450 6800 60  0000 C C
        4    4050 6800
        1    0    0    -1  
$EndComp
$Comp
L LT6232 U201
U 1 1 4B12DE74
P 2300 6750
F 0 "U201" H 2600 6650 60  0000 C C
F 1 "LT6232" H 2700 6550 60  0000 C C
F 2 "SSOP-16" H 2700 6750 60  0000 C C
        1    2300 6750
        1    0    0    -1  
$EndComp
$Comp
L CAPAPOL C203
U 1 1 4A85C69F
P 4950 1500
F 0 "C203" H 5000 1600 50  0000 L C
F 1 "68u" H 5000 1400 50  0000 L C
F 2 "SM1206" H 5100 1700 60  0000 C C
        1    4950 1500
        0    1    1    0   
$EndComp
$Comp
L CAPAPOL C205
U 1 1 4A85C699
P 4950 2650
F 0 "C205" H 5000 2750 50  0000 L C
F 1 "68u" H 5000 2550 50  0000 L C
F 2 "SM1206" H 5100 2850 60  0000 C C
        1    4950 2650
        0    1    1    0   
$EndComp
$Comp
L CAPAPOL C208
U 1 1 4A85C68B
P 4950 4200
F 0 "C208" H 5000 4300 50  0000 L C
F 1 "68u" H 5000 4100 50  0000 L C
F 2 "SM1206" H 5100 4400 60  0000 C C
        1    4950 4200
        0    1    1    0   
$EndComp
$Comp
L CAPAPOL C210
U 1 1 4A85C688
P 4950 5350
F 0 "C210" H 5000 5450 50  0000 L C
F 1 "68u" H 5000 5250 50  0000 L C
F 2 "SM1206" H 5100 5550 60  0000 C C
        1    4950 5350
        0    1    1    0   
$EndComp
$Comp
L CAPAPOL C218
U 1 1 4A85C669
P 1600 5350
F 0 "C218" H 1650 5450 50  0000 L C
F 1 "68u" H 1650 5250 50  0000 L C
F 2 "SM1206" H 1750 5550 60  0000 C C
        1    1600 5350
        0    1    1    0   
$EndComp
$Comp
L CAPAPOL C217
U 1 1 4A85C62F
P 1600 1400
F 0 "C217" H 1650 1500 50  0000 L C
F 1 "68u" H 1650 1300 50  0000 L C
F 2 "SM1206" H 1750 1600 60  0000 C C
        1    1600 1400
        0    1    1    0   
$EndComp
$Comp
L C C211
U 1 1 4A85B9ED
P 10100 4350
F 0 "C211" H 10150 4450 50  0000 L C
F 1 "10u" H 10150 4250 50  0000 L C
F 2 "SM0805" H 10250 4550 60  0000 C C
        1    10100 4350
        -1   0    0    -1  
$EndComp
$Comp
L C C212
U 1 1 4A85B9EC
P 9700 4350
F 0 "C212" H 9750 4450 50  0000 L C
F 1 "100nF" H 9750 4250 50  0000 L C
F 2 "SM0805" H 9850 4550 60  0000 C C
        1    9700 4350
        -1   0    0    -1  
$EndComp
$Comp
L LT6232 U202
U 1 1 4A85B9CE
P 6300 5450
F 0 "U202" H 6600 5350 60  0000 C C
F 1 "LT6232" H 6700 5250 60  0000 C C
F 2 "SSOP-16" H 6700 5450 60  0000 C C
        1    6300 5450
        1    0    0    -1  
$EndComp
$Comp
L LT6232 U202
U 2 1 4A85B9C6
P 6300 4300
F 0 "U202" H 6600 4200 60  0000 C C
F 1 "LT6232" H 6700 4100 60  0000 C C
F 2 "SSOP-16" H 6700 4300 60  0000 C C
        2    6300 4300
        1    0    0    -1  
$EndComp
$Comp
L LT6232 U201
U 4 1 4A85B9A8
P 6300 2750
F 0 "U201" H 6600 2650 60  0000 C C
F 1 "LT6232" H 6700 2550 60  0000 C C
F 2 "SSOP-16" H 6700 2750 60  0000 C C
        4    6300 2750
        1    0    0    -1  
$EndComp
$Comp
L R R218
U 1 1 4A6B1FA1
P 10500 4450
F 0 "R218" V 10580 4450 50  0000 C C
F 1 "20" V 10500 4450 50  0000 C C
F 2 "SM0805" V 10680 4550 60  0000 C C
        1    10500 4450
        -1   0    0    -1  
$EndComp
Text Label 9450 5600 0    60   ~
2vBias
$Comp
L LT6232 U201
U 2 1 4A60DD36
P 3200 1500
F 0 "U201" H 3500 1400 60  0000 C C
F 1 "LT6232" H 3600 1300 60  0000 C C
F 2 "SSOP-16" H 3600 1500 60  0000 C C
        2    3200 1500
        1    0    0    -1  
$EndComp
$Comp
L LT6232 U202
U 3 1 4A60DD06
P 3200 4200
F 0 "U202" H 3500 4100 60  0000 C C
F 1 "LT6232" H 3600 4000 60  0000 C C
F 2 "SSOP-16" H 3600 4200 60  0000 C C
        3    3200 4200
        1    0    0    -1  
$EndComp
Text Label 2500 4300 0    40   ~
2vBias
$Comp
L C C215
U 1 1 4A60CA50
P 10100 5850
F 0 "C215" H 10150 5950 50  0000 L C
F 1 "10u" H 10150 5750 50  0000 L C
F 2 "SM0805" H 10250 6050 60  0000 C C
        1    10100 5850
        -1   0    0    -1  
$EndComp
$Comp
L C C213
U 1 1 4A60CA4B
P 10100 5100
F 0 "C213" H 10150 5200 50  0000 L C
F 1 "10u" H 10150 5000 50  0000 L C
F 2 "SM0805" H 10250 5300 60  0000 C C
        1    10100 5100
        -1   0    0    -1  
$EndComp
Text Label 2500 1600 0    40   ~
2vBias
$Comp
L C C214
U 1 1 4A47B2FF
P 9700 5100
F 0 "C214" H 9750 5200 50  0000 L C
F 1 "100nF" H 9750 5000 50  0000 L C
F 2 "SM0805" H 9850 5300 60  0000 C C
        1    9700 5100
        -1   0    0    -1  
$EndComp
$Comp
L R R219
U 1 1 4A47B2FE
P 10500 5100
F 0 "R219" V 10580 5100 50  0000 C C
F 1 "1800" V 10500 5100 50  0000 C C
F 2 "SM0805" V 10680 5200 60  0000 C C
        1    10500 5100
        -1   0    0    -1  
$EndComp
Text GLabel 9900 1550 2    60   Input
Analog Ground
$Comp
L C C206
U 1 1 4A4152B7
P 8050 4850
F 0 "C206" H 8100 4950 50  0000 L C
F 1 "2.2p" H 8100 4750 50  0000 L C
F 2 "SM0805" H 8200 5050 60  0000 C C
        1    8050 4850
        -1   0    0    -1  
$EndComp
$Comp
L R R214
U 1 1 4A4152B4
P 7300 5450
F 0 "R214" V 7380 5450 50  0000 C C
F 1 "91" V 7300 5450 50  0000 C C
F 2 "SM0805" V 7480 5550 60  0000 C C
        1    7300 5450
        0    1    -1   0   
$EndComp
$Comp
L C C209
U 1 1 4A4152B3
P 6550 4950
F 0 "C209" V 6600 5100 50  0000 L C
F 1 "1nF" V 6600 4800 50  0000 L C
F 2 "SM0805" V 6700 5200 60  0000 C C
        1    6550 4950
        0    1    1    0   
$EndComp
$Comp
L C C207
U 1 1 4A4152B2
P 6550 3800
F 0 "C207" V 6600 3950 50  0000 L C
F 1 "1nF" V 6600 3650 50  0000 L C
F 2 "SM0805" V 6700 4050 60  0000 C C
        1    6550 3800
        0    1    1    0   
$EndComp
$Comp
L R R216
U 1 1 4A4152B0
P 5500 5350
F 0 "R216" V 5580 5350 50  0000 C C
F 1 "1.2k" V 5500 5350 50  0000 C C
F 2 "SM0805" V 5680 5450 60  0000 C C
        1    5500 5350
        0    1    -1   0   
$EndComp
$Comp
L R R211
U 1 1 4A4152AF
P 5500 4200
F 0 "R211" V 5580 4200 50  0000 C C
F 1 "1.2k" V 5500 4200 50  0000 C C
F 2 "SM0805" V 5680 4300 60  0000 C C
        1    5500 4200
        0    1    -1   0   
$EndComp
$Comp
L R R209
U 1 1 4A4152AE
P 7300 4300
F 0 "R209" V 7380 4300 50  0000 C C
F 1 "91" V 7300 4300 50  0000 C C
F 2 "SM0805" V 7480 4400 60  0000 C C
        1    7300 4300
        0    1    -1   0   
$EndComp
$Comp
L R R215
U 1 1 4A4152AD
P 6900 4700
F 0 "R215" V 6980 4700 50  0000 C C
F 1 "1.2k" V 6900 4700 50  0000 C C
F 2 "SM0805" V 7080 4800 60  0000 C C
        1    6900 4700
        0    1    -1   0   
$EndComp
$Comp
L R R210
U 1 1 4A4152AC
P 6900 3550
F 0 "R210" V 6980 3550 50  0000 C C
F 1 "1.2k" V 6900 3550 50  0000 C C
F 2 "SM0805" V 7080 3650 60  0000 C C
        1    6900 3550
        0    1    -1   0   
$EndComp
$Comp
L R R212
U 1 1 4A4152AB
P 3300 3600
F 0 "R212" V 3380 3600 50  0000 C C
F 1 "1.2k" V 3300 3600 50  0000 C C
F 2 "SM0805" V 3480 3700 60  0000 C C
        1    3300 3600
        0    1    -1   0   
$EndComp
$Comp
L R R213
U 1 1 4A4152AA
P 2250 4100
F 0 "R213" V 2330 4100 50  0000 C C
F 1 "1.2k" V 2250 4100 50  0000 C C
F 2 "SM0805" V 2430 4200 60  0000 C C
        1    2250 4100
        0    1    -1   0   
$EndComp
$Comp
L C C216
U 1 1 4A41521D
P 9700 5850
F 0 "C216" H 9750 5950 50  0000 L C
F 1 "100nF" H 9750 5750 50  0000 L C
F 2 "SM0805" H 9850 6050 60  0000 C C
        1    9700 5850
        -1   0    0    -1  
$EndComp
$Comp
L R R220
U 1 1 4A415209
P 10500 5850
F 0 "R220" V 10580 5850 50  0000 C C
F 1 "10k" V 10500 5850 50  0000 C C
F 2 "SM0805" V 10680 5950 60  0000 C C
        1    10500 5850
        -1   0    0    -1  
$EndComp
$Comp
L R R217
U 1 1 4A4151FC
P 10500 3850
F 0 "R217" V 10580 3850 50  0000 C C
F 1 "10k" V 10500 3850 50  0000 C C
F 2 "SM0805" V 10680 3950 60  0000 C C
        1    10500 3850
        -1   0    0    -1  
$EndComp
$Comp
L +5V #PWR033
U 1 1 4A4151D8
P 10500 3500
F 0 "#PWR033" H 10500 3590 20  0001 C C
F 1 "+5V" H 10500 3590 30  0000 C C
        1    10500 3500
        -1   0    0    -1  
$EndComp
Text GLabel 10500 3300 2    60   Output
RIN1-
Text GLabel 10500 3200 2    60   Output
RIN1+
Text GLabel 10500 3000 2    60   Output
LIN1-
Text GLabel 10500 2900 2    60   Output
LIN1+
$Comp
L C C201
U 1 1 4A3FDA2B
P 8050 2150
F 0 "C201" H 8100 2250 50  0000 L C
F 1 "2.2pf" H 8100 2050 50  0000 L C
F 2 "SM0805" H 8200 2350 60  0000 C C
        1    8050 2150
        -1   0    0    -1  
$EndComp
$Comp
L +5V #PWR034
U 1 1 4A3FD679
P 9600 900
F 0 "#PWR034" H 9600 990 20  0001 C C
F 1 "+5V" H 9600 990 30  0000 C C
        1    9600 900 
        -1   0    0    -1  
$EndComp
Text GLabel 9900 950  2    60   Input
5v Power
$Comp
L R R206
U 1 1 4A3FD55B
P 7300 2750
F 0 "R206" V 7380 2750 50  0000 C C
F 1 "91" V 7300 2750 50  0000 C C
F 2 "SM0805" V 7480 2850 60  0000 C C
        1    7300 2750
        0    1    -1   0   
$EndComp
$Comp
L C C204
U 1 1 4A3FD528
P 6550 2250
F 0 "C204" V 6600 2400 50  0000 L C
F 1 "1nF" V 6600 2100 50  0000 L C
F 2 "SM0805" V 6700 2500 60  0000 C C
        1    6550 2250
        0    1    1    0   
$EndComp
$Comp
L C C202
U 1 1 4A3FD4DD
P 6500 1100
F 0 "C202" V 6550 1250 50  0000 L C
F 1 "1nF" V 6550 950 50  0000 L C
F 2 "SM0805" V 6650 1350 60  0000 C C
        1    6500 1100
        0    1    1    0   
$EndComp
$Comp
L R R208
U 1 1 4A3FD367
P 5500 2650
F 0 "R208" V 5580 2650 50  0000 C C
F 1 "1.2k" V 5500 2650 50  0000 C C
F 2 "SM0805" V 5680 2750 60  0000 C C
        1    5500 2650
        0    1    -1   0   
$EndComp
$Comp
L R R203
U 1 1 4A3FD358
P 5500 1500
F 0 "R203" V 5580 1500 50  0000 C C
F 1 "1.2k" V 5500 1500 50  0000 C C
F 2 "SM0805" V 5680 1600 60  0000 C C
        1    5500 1500
        0    1    -1   0   
$EndComp
$Comp
L R R201
U 1 1 4A3FD333
P 7300 1600
F 0 "R201" V 7380 1600 50  0000 C C
F 1 "91" V 7300 1600 50  0000 C C
F 2 "SM0805" V 7480 1700 60  0000 C C
        1    7300 1600
        0    1    -1   0   
$EndComp
$Comp
L R R207
U 1 1 4A3FD323
P 6900 2000
F 0 "R207" V 6980 2000 50  0000 C C
F 1 "1.2k" V 6900 2000 50  0000 C C
F 2 "SM0805" V 7080 2100 60  0000 C C
        1    6900 2000
        0    1    -1   0   
$EndComp
$Comp
L R R202
U 1 1 4A3FD316
P 6900 850
F 0 "R202" V 6980 850 50  0000 C C
F 1 "1.2k" V 6900 850 50  0000 C C
F 2 "SM0805" V 7080 950 60  0000 C C
        1    6900 850 
        0    1    -1   0   
$EndComp
$Comp
L R R204
U 1 1 4A3FD303
P 3300 900
F 0 "R204" V 3380 900 50  0000 C C
F 1 "1.2k" V 3300 900 50  0000 C C
F 2 "SM0805" V 3480 1000 60  0000 C C
        1    3300 900 
        0    1    -1   0   
$EndComp
$Comp
L R R205
U 1 1 4A3FD2F0
P 2250 1400
F 0 "R205" V 2330 1400 50  0000 C C
F 1 "1.2k" V 2250 1400 50  0000 C C
F 2 "SM0805" V 2430 1500 60  0000 C C
        1    2250 1400
        0    1    -1   0   
$EndComp
$Comp
L GND #PWR035
U 1 1 4A3E9EBC
P 9600 1400
F 0 "#PWR035" H 9600 1400 30  0001 C C
F 1 "GND" H 9600 1330 30  0001 C C
        1    9600 1400
        -1   0    0    -1  
$EndComp
Text GLabel 9900 1350 2    60   Input
System Ground
$EndSCHEMATC