diff --git a/rf-analyzer/rf-analyzer-cache.lib b/rf-analyzer/rf-analyzer-cache.lib
index ddf571f354319b3478cd6b2cff6623adf7f4204b..ea5965747c06f063175f9d4871ba6946ae4befe4 100644
--- a/rf-analyzer/rf-analyzer-cache.lib
+++ b/rf-analyzer/rf-analyzer-cache.lib
@@ -321,6 +321,22 @@ X VIN VIN -1300 -2150 300 R 50 50 1 1 W
 ENDDRAW
 ENDDEF
 #
+# power_+3.3V
+#
+DEF power_+3.3V #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -150 50 H I C CNN
+F1 "power_+3.3V" 0 140 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS +3.3V
+DRAW
+P 2 0 1 0 -30 50 0 100 N
+P 2 0 1 0 0 0 0 100 N
+P 2 0 1 0 0 100 30 50 N
+X +3V3 1 0 0 0 U 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
 # power_+5V
 #
 DEF power_+5V #PWR 0 0 Y Y 1 F P
diff --git a/rf-analyzer/rf-analyzer.sch b/rf-analyzer/rf-analyzer.sch
index 674d245bae72d9082c756e8914bdc44986a6ea3f..a0875d01d5c8ae78f414d5ee73624f5eb0f943b9 100644
--- a/rf-analyzer/rf-analyzer.sch
+++ b/rf-analyzer/rf-analyzer.sch
@@ -716,42 +716,42 @@ Wire Notes Line
 	5050 2650 5050 500 
 Wire Wire Line
 	10650 1100 10600 1100
-Text GLabel 5150 6200 0    60   Input ~ 0
+Text GLabel 9200 5100 0    60   Input ~ 0
 fwd_pwr
-Text GLabel 5150 6800 0    60   Input ~ 0
+Text GLabel 9200 5700 0    60   Input ~ 0
 refl_pwr
-Text GLabel 5200 5750 0    60   Input ~ 0
+Text GLabel 9250 4650 0    60   Input ~ 0
 shft_mag
-Text GLabel 5200 5900 0    60   Input ~ 0
+Text GLabel 9250 4800 0    60   Input ~ 0
 shft_vref
-Text GLabel 5200 6050 0    60   Input ~ 0
+Text GLabel 9250 4950 0    60   Input ~ 0
 shft_phase
-Text GLabel 5150 6350 0    60   Input ~ 0
+Text GLabel 9200 5250 0    60   Input ~ 0
 mag
-Text GLabel 5150 6500 0    60   Input ~ 0
+Text GLabel 9200 5400 0    60   Input ~ 0
 vref
-Text GLabel 5150 6650 0    60   Input ~ 0
+Text GLabel 9200 5550 0    60   Input ~ 0
 phase
 Wire Wire Line
 	3750 700  3750 750 
 Connection ~ 3750 750 
 Connection ~ 3750 1050
 Wire Wire Line
-	5200 6300 5200 6350
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 Wire Wire Line
-	5200 6350 5150 6350
+	9250 5250 9200 5250
 Wire Wire Line
-	5250 6400 5250 6500
+	9300 5300 9300 5400
 Wire Wire Line
-	5250 6500 5150 6500
+	9300 5400 9200 5400
 Wire Wire Line
-	5300 6500 5300 6650
+	9350 5400 9350 5550
 Wire Wire Line
-	5300 6650 5150 6650
+	9350 5550 9200 5550
 Wire Wire Line
-	5350 6600 5350 6800
+	9400 5500 9400 5700
 Wire Wire Line
-	5350 6800 5150 6800
+	9400 5700 9200 5700
 Wire Wire Line
 	9900 750  9900 800 
 Wire Wire Line
@@ -1142,220 +1142,189 @@ $EndComp
 $Comp
 L Analog_ADC:LTC2309_TSSOP U?
 U 1 1 5C768BA3
-P 5850 6300
-F 0 "U?" H 5950 5650 50  0000 C CNN
-F 1 "LTC2309_TSSOP" H 6150 5550 50  0000 C CNN
-F 2 "Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm" H 6950 5650 50  0001 C CNN
-F 3 "http://cds.linear.com/docs/en/datasheet/2309fd.pdf" H 5600 6850 50  0001 C CNN
-	1    5850 6300
+P 9900 5200
+F 0 "U?" H 10000 4550 50  0000 C CNN
+F 1 "LTC2309_TSSOP" H 10200 4450 50  0000 C CNN
+F 2 "Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm" H 11000 4550 50  0001 C CNN
+F 3 "http://cds.linear.com/docs/en/datasheet/2309fd.pdf" H 9650 5750 50  0001 C CNN
+	1    9900 5200
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	5200 6050 5250 6050
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 Wire Wire Line
-	5250 6050 5250 6100
+	9300 4950 9300 5000
 Wire Wire Line
-	5250 6100 5450 6100
+	9300 5000 9500 5000
 Wire Wire Line
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 Wire Wire Line
-	5300 5900 5300 6000
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 Wire Wire Line
-	5300 6000 5450 6000
+	9350 4900 9500 4900
 Wire Wire Line
-	5200 5750 5350 5750
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 Wire Wire Line
-	5350 5750 5350 5900
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 Wire Wire Line
-	5350 5900 5450 5900
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 Wire Wire Line
-	5150 6200 5450 6200
+	9200 5100 9500 5100
 Wire Wire Line
-	5200 6300 5450 6300
+	9250 5200 9500 5200
 Wire Wire Line
-	5250 6400 5450 6400
+	9300 5300 9500 5300
 Wire Wire Line
-	5300 6500 5450 6500
+	9350 5400 9500 5400
 Wire Wire Line
-	5350 6600 5450 6600
+	9400 5500 9500 5500
 $Comp
 L Device:C_Small C?
 U 1 1 5C8820EC
-P 6000 5350
-F 0 "C?" V 5800 5300 50  0000 L CNN
-F 1 "100nF" V 5900 5250 50  0000 L CNN
-F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 6000 5350 50  0001 C CNN
-F 3 "" H 6000 5350 50  0001 C CNN
-	1    6000 5350
+P 10050 4250
+F 0 "C?" V 9850 4200 50  0000 L CNN
+F 1 "100nF" V 9950 4150 50  0000 L CNN
+F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 10050 4250 50  0001 C CNN
+F 3 "" H 10050 4250 50  0001 C CNN
+	1    10050 4250
 	0    1    1    0   
 $EndComp
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 L Device:C_Small C?
 U 1 1 5C882A0E
-P 6000 5500
-F 0 "C?" V 6200 5500 50  0000 C CNN
-F 1 "10μF" V 6100 5500 50  0000 C CNN
-F 2 "" H 6000 5500 50  0001 C CNN
-F 3 "~" H 6000 5500 50  0001 C CNN
-	1    6000 5500
+P 10050 4400
+F 0 "C?" V 10250 4400 50  0000 C CNN
+F 1 "10μF" V 10150 4400 50  0000 C CNN
+F 2 "" H 10050 4400 50  0001 C CNN
+F 3 "~" H 10050 4400 50  0001 C CNN
+	1    10050 4400
 	0    1    1    0   
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 L power:GNDA #PWR?
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-P 6200 5550
-F 0 "#PWR?" H 6200 5300 50  0001 C CNN
-F 1 "GNDA" H 6205 5377 50  0000 C CNN
-F 2 "" H 6200 5550 50  0001 C CNN
-F 3 "" H 6200 5550 50  0001 C CNN
-	1    6200 5550
+P 10250 4450
+F 0 "#PWR?" H 10250 4200 50  0001 C CNN
+F 1 "GNDA" H 10255 4277 50  0000 C CNN
+F 2 "" H 10250 4450 50  0001 C CNN
+F 3 "" H 10250 4450 50  0001 C CNN
+	1    10250 4450
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
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 Wire Wire Line
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-	5900 5500 5850 5500
-Connection ~ 5850 5500
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-Connection ~ 6200 5500
+	10150 4400 10250 4400
+Connection ~ 10250 4400
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-	6200 5500 6200 5350
+	10250 4400 10250 4250
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 L power:+5V #PWR?
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-P 5850 5300
-F 0 "#PWR?" H 5850 5150 50  0001 C CNN
-F 1 "+5V" H 5865 5473 50  0000 C CNN
-F 2 "" H 5850 5300 50  0001 C CNN
-F 3 "" H 5850 5300 50  0001 C CNN
-	1    5850 5300
+P 9900 4200
+F 0 "#PWR?" H 9900 4050 50  0001 C CNN
+F 1 "+5V" H 9915 4373 50  0000 C CNN
+F 2 "" H 9900 4200 50  0001 C CNN
+F 3 "" H 9900 4200 50  0001 C CNN
+	1    9900 4200
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	5850 5300 5850 5350
-Connection ~ 5850 5350
+	9900 4200 9900 4250
+Connection ~ 9900 4250
 $Comp
 L power:GNDA #PWR?
 U 1 1 5C981B9C
-P 5850 7050
-F 0 "#PWR?" H 5850 6800 50  0001 C CNN
-F 1 "GNDA" H 5855 6877 50  0000 C CNN
-F 2 "" H 5850 7050 50  0001 C CNN
-F 3 "" H 5850 7050 50  0001 C CNN
-	1    5850 7050
+P 9900 5950
+F 0 "#PWR?" H 9900 5700 50  0001 C CNN
+F 1 "GNDA" H 9905 5777 50  0000 C CNN
+F 2 "" H 9900 5950 50  0001 C CNN
+F 3 "" H 9900 5950 50  0001 C CNN
+	1    9900 5950
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	5850 7000 5850 7050
+	9900 5900 9900 5950
 $Comp
 L Device:C_Small C?
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-P 6450 6750
-F 0 "C?" V 6250 6700 50  0000 L CNN
-F 1 "100nF" V 6350 6650 50  0000 L CNN
-F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 6450 6750 50  0001 C CNN
-F 3 "" H 6450 6750 50  0001 C CNN
-	1    6450 6750
+P 10500 5650
+F 0 "C?" V 10300 5600 50  0000 L CNN
+F 1 "100nF" V 10400 5550 50  0000 L CNN
+F 2 "Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 10500 5650 50  0001 C CNN
+F 3 "" H 10500 5650 50  0001 C CNN
+	1    10500 5650
 	1    0    0    1   
 $EndComp
 $Comp
 L Device:C_Small C?
 U 1 1 5CA13769
-P 6650 6750
-F 0 "C?" V 6850 6750 50  0000 C CNN
-F 1 "10μF" V 6750 6750 50  0000 C CNN
-F 2 "" H 6650 6750 50  0001 C CNN
-F 3 "~" H 6650 6750 50  0001 C CNN
-	1    6650 6750
+P 10700 5650
+F 0 "C?" V 10900 5650 50  0000 C CNN
+F 1 "10μF" V 10800 5650 50  0000 C CNN
+F 2 "" H 10700 5650 50  0001 C CNN
+F 3 "~" H 10700 5650 50  0001 C CNN
+	1    10700 5650
 	1    0    0    1   
 $EndComp
 $Comp
 L power:GNDA #PWR?
 U 1 1 5CA13927
-P 6550 6950
-F 0 "#PWR?" H 6550 6700 50  0001 C CNN
-F 1 "GNDA" H 6555 6777 50  0000 C CNN
-F 2 "" H 6550 6950 50  0001 C CNN
-F 3 "" H 6550 6950 50  0001 C CNN
-	1    6550 6950
+P 10600 5850
+F 0 "#PWR?" H 10600 5600 50  0001 C CNN
+F 1 "GNDA" H 10605 5677 50  0000 C CNN
+F 2 "" H 10600 5850 50  0001 C CNN
+F 3 "" H 10600 5850 50  0001 C CNN
+	1    10600 5850
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	6250 6600 6450 6600
+	10300 5500 10500 5500
 Wire Wire Line
-	6650 6600 6650 6650
+	10700 5500 10700 5550
 Wire Wire Line
-	6450 6650 6450 6600
-Connection ~ 6450 6600
+	10500 5550 10500 5500
+Connection ~ 10500 5500
 Wire Wire Line
-	6450 6600 6650 6600
+	10500 5500 10700 5500
 Wire Wire Line
-	6450 6850 6450 6900
+	10500 5750 10500 5800
 Wire Wire Line
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 Wire Wire Line
-	6650 6900 6650 6850
+	10700 5800 10700 5750
 Wire Wire Line
-	6550 6950 6550 6900
-Connection ~ 6550 6900
+	10600 5850 10600 5800
+Connection ~ 10600 5800
 Wire Wire Line
-	6550 6900 6650 6900
+	10600 5800 10700 5800
 $Comp
 L power:GNDA #PWR?
 U 1 1 5CA7F273
-P 5400 6900
-F 0 "#PWR?" H 5400 6650 50  0001 C CNN
-F 1 "GNDA" H 5405 6727 50  0000 C CNN
-F 2 "" H 5400 6900 50  0001 C CNN
-F 3 "" H 5400 6900 50  0001 C CNN
-	1    5400 6900
+P 9450 5800
+F 0 "#PWR?" H 9450 5550 50  0001 C CNN
+F 1 "GNDA" H 9455 5627 50  0000 C CNN
+F 2 "" H 9450 5800 50  0001 C CNN
+F 3 "" H 9450 5800 50  0001 C CNN
+	1    9450 5800
 	1    0    0    -1  
 $EndComp
 Wire Wire Line
-	5450 6800 5400 6800
+	9500 5700 9450 5700
 Wire Wire Line
-	5400 6800 5400 6900
-$Comp
-L power:+5V #PWR?
-U 1 1 5CA95841
-P 6650 6450
-F 0 "#PWR?" H 6650 6300 50  0001 C CNN
-F 1 "+5V" H 6665 6623 50  0000 C CNN
-F 2 "" H 6650 6450 50  0001 C CNN
-F 3 "" H 6650 6450 50  0001 C CNN
-	1    6650 6450
-	1    0    0    -1  
-$EndComp
-Wire Wire Line
-	6250 6500 6650 6500
-Wire Wire Line
-	6650 6500 6650 6450
-Wire Wire Line
-	6250 6200 6300 6200
-Wire Wire Line
-	6300 6200 6300 6150
-Wire Wire Line
-	6300 6150 6350 6150
-Wire Wire Line
-	6250 6300 6300 6300
-Wire Wire Line
-	6300 6300 6300 6350
-Wire Wire Line
-	6300 6350 6350 6350
-Text GLabel 6350 6350 2    50   Input ~ 0
-SDA
-Text GLabel 6350 6150 2    50   Input ~ 0
-SCL
-Text GLabel 4350 5100 2    50   Input ~ 0
+	9450 5700 9450 5800
+Text GLabel 6350 5000 2    50   Input ~ 0
 freq_count
 $Comp
 L arduino:Arduino_Due_Shield XA?
@@ -1480,12 +1449,116 @@ Wire Notes Line
 	8250 2350 8250 500 
 Wire Notes Line
 	9250 1900 9250 3800
-Wire Notes Line
-	9250 3800 11200 3800
 Text Notes 5100 600  0    60   ~ 0
 Terminator & DC Coupling
 Wire Notes Line
 	5050 650  6350 650 
 Wire Notes Line
 	6350 650  6350 500 
+Wire Wire Line
+	10300 5200 10400 5200
+Wire Wire Line
+	10400 5200 10400 5150
+$Comp
+L Device:R_Small R?
+U 1 1 6017C6CC
+P 10400 4850
+F 0 "R?" V 10450 4800 50  0000 L CNN
+F 1 "1.7KΩ" V 10300 4700 50  0000 L CNN
+F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 10400 4850 50  0001 C CNN
+F 3 "" H 10400 4850 50  0001 C CNN
+	1    10400 4850
+	-1   0    0    1   
+$EndComp
+Text GLabel 10750 5050 2    50   Input ~ 0
+SDA
+Wire Wire Line
+	10700 5050 10750 5050
+Wire Wire Line
+	10700 5150 10700 5050
+Wire Wire Line
+	10400 5100 10400 5050
+Wire Wire Line
+	10400 5050 10450 5050
+Text GLabel 10450 5050 2    50   Input ~ 0
+SCL
+Wire Wire Line
+	10300 5100 10400 5100
+Wire Wire Line
+	10400 5150 10700 5150
+$Comp
+L Device:R_Small R?
+U 1 1 60213262
+P 10700 4850
+F 0 "R?" V 10750 4800 50  0000 L CNN
+F 1 "1.7KΩ" V 10600 4700 50  0000 L CNN
+F 2 "Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder" H 10700 4850 50  0001 C CNN
+F 3 "" H 10700 4850 50  0001 C CNN
+	1    10700 4850
+	-1   0    0    1   
+$EndComp
+$Comp
+L power:+3.3V #PWR?
+U 1 1 600E92D9
+P 10550 4600
+F 0 "#PWR?" H 10550 4450 50  0001 C CNN
+F 1 "+3.3V" H 10565 4773 50  0000 C CNN
+F 2 "" H 10550 4600 50  0001 C CNN
+F 3 "" H 10550 4600 50  0001 C CNN
+	1    10550 4600
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	10400 5050 10400 4950
+Connection ~ 10400 5050
+Wire Wire Line
+	10700 5050 10700 4950
+Connection ~ 10700 5050
+Wire Wire Line
+	10400 4750 10400 4600
+Wire Wire Line
+	10400 4600 10550 4600
+Wire Wire Line
+	10700 4750 10700 4600
+Wire Wire Line
+	10700 4600 10550 4600
+Connection ~ 10550 4600
+$Comp
+L Device:C_Small C?
+U 1 1 602BC8D5
+P 10950 5550
+F 0 "C?" V 11150 5550 50  0000 C CNN
+F 1 "2.2μF" V 11050 5550 50  0000 C CNN
+F 2 "" H 10950 5550 50  0001 C CNN
+F 3 "~" H 10950 5550 50  0001 C CNN
+	1    10950 5550
+	1    0    0    1   
+$EndComp
+$Comp
+L power:GNDA #PWR?
+U 1 1 602D240D
+P 10950 5700
+F 0 "#PWR?" H 10950 5450 50  0001 C CNN
+F 1 "GNDA" H 10955 5527 50  0000 C CNN
+F 2 "" H 10950 5700 50  0001 C CNN
+F 3 "" H 10950 5700 50  0001 C CNN
+	1    10950 5700
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	10300 5400 10950 5400
+Wire Wire Line
+	10950 5400 10950 5450
+Wire Wire Line
+	10950 5650 10950 5700
+Text Notes 8750 3900 0    60   ~ 0
+Analog-Digital Converter
+Wire Notes Line
+	8650 3800 8650 6500
+Wire Notes Line
+	8650 3800 11200 3800
+Wire Notes Line
+	9950 3800 9950 3950
+Wire Notes Line
+	9950 3950 8650 3950
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