EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 2 6
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:R R4
U 1 1 5B97CB1F
P 3400 2400
F 0 "R4" V 3480 2400 50  0000 C CNN
F 1 "390R" V 3400 2400 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3330 2400 50  0001 C CNN
F 3 "" H 3400 2400 50  0001 C CNN
	1    3400 2400
	0    -1   -1   0   
$EndComp
$Comp
L Amplifier_Operational:TL072 U?
U 1 1 5B97CB74
P 3300 1600
AR Path="/5B97CB74" Ref="U?"  Part="1" 
AR Path="/5B9414AF/5B97CB74" Ref="U1"  Part="1" 
F 0 "U1" H 3300 1800 50  0000 L CNN
F 1 "TL072" H 3300 1400 50  0000 L CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 3300 1600 50  0001 C CNN
F 3 "" H 3300 1600 50  0001 C CNN
	1    3300 1600
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 1700 2550 1700
$Comp
L power:-VDC #PWR022
U 1 1 5B97CC1D
P 7150 2400
F 0 "#PWR022" H 7150 2300 50  0001 C CNN
F 1 "-VDC" H 7150 2650 50  0000 C CNN
F 2 "" H 7150 2400 50  0001 C CNN
F 3 "" H 7150 2400 50  0001 C CNN
	1    7150 2400
	-1   0    0    1   
$EndComp
$Comp
L power:+VDC #PWR021
U 1 1 5B97CC49
P 7150 1500
F 0 "#PWR021" H 7150 1400 50  0001 C CNN
F 1 "+VDC" H 7150 1750 50  0000 C CNN
F 2 "" H 7150 1500 50  0001 C CNN
F 3 "" H 7150 1500 50  0001 C CNN
	1    7150 1500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR020
U 1 1 5B97CC75
P 2950 1500
F 0 "#PWR020" H 2950 1250 50  0001 C CNN
F 1 "GND" H 2950 1350 50  0000 C CNN
F 2 "" H 2950 1500 50  0001 C CNN
F 3 "" H 2950 1500 50  0001 C CNN
	1    2950 1500
	0    1    1    0   
$EndComp
Wire Wire Line
	2950 1500 3000 1500
Wire Wire Line
	3600 1600 3700 1600
$Comp
L Amplifier_Operational:TL072 U?
U 2 1 5B97CCF1
P 3550 4950
AR Path="/5B97CCF1" Ref="U?"  Part="2" 
AR Path="/5B9414AF/5B97CCF1" Ref="U1"  Part="2" 
F 0 "U1" H 3550 5150 50  0000 L CNN
F 1 "TL072" H 3550 4750 50  0000 L CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 3550 4950 50  0001 C CNN
F 3 "" H 3550 4950 50  0001 C CNN
	2    3550 4950
	1    0    0    -1  
$EndComp
$Comp
L Device:R R6
U 1 1 5B97CD42
P 4000 1800
F 0 "R6" V 4080 1800 50  0000 C CNN
F 1 "150R" V 4000 1800 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3930 1800 50  0001 C CNN
F 3 "" H 4000 1800 50  0001 C CNN
	1    4000 1800
	1    0    0    -1  
$EndComp
$Comp
L Device:R R7
U 1 1 5B97CD89
P 4000 2500
F 0 "R7" V 4080 2500 50  0000 C CNN
F 1 "820R" V 4000 2500 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3930 2500 50  0001 C CNN
F 3 "" H 4000 2500 50  0001 C CNN
	1    4000 2500
	1    0    0    -1  
$EndComp
$Comp
L Device:R_POT_TRIM RV2
U 1 1 5B97CDCA
P 4000 2150
AR Path="/5B97CDCA" Ref="RV2"  Part="1" 
AR Path="/5B9414AF/5B97CDCA" Ref="RV2"  Part="1" 
F 0 "RV2" V 3825 2150 50  0000 C CNN
F 1 "100R" V 3900 2150 50  0000 C CNN
F 2 "Potentiometer_SMD:Potentiometer_Bourns_3214W_Vertical" H 4000 2150 50  0001 C CNN
F 3 "" H 4000 2150 50  0001 C CNN
	1    4000 2150
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR024
U 1 1 5B97D0D5
P 3400 3250
F 0 "#PWR024" H 3400 3000 50  0001 C CNN
F 1 "GND" H 3400 3100 50  0000 C CNN
F 2 "" H 3400 3250 50  0001 C CNN
F 3 "" H 3400 3250 50  0001 C CNN
	1    3400 3250
	-1   0    0    1   
$EndComp
Wire Wire Line
	4000 1600 4000 1650
Connection ~ 3700 1600
Wire Wire Line
	4000 1950 4000 2000
Wire Wire Line
	4000 2300 4000 2350
Wire Wire Line
	4000 2650 4000 2700
Wire Wire Line
	4150 2150 4200 2150
Wire Wire Line
	3600 3600 3900 3600
$Comp
L Device:R R5
U 1 1 5B97D2E4
P 3900 3850
F 0 "R5" V 3980 3850 50  0000 C CNN
F 1 "15k" V 3900 3850 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3830 3850 50  0001 C CNN
F 3 "" H 3900 3850 50  0001 C CNN
	1    3900 3850
	1    0    0    -1  
$EndComp
$Comp
L Device:C C17
U 1 1 5B97D335
P 3550 4100
F 0 "C17" H 3575 4200 50  0000 L CNN
F 1 "1nF" H 3575 4000 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 3588 3950 50  0001 C CNN
F 3 "" H 3550 4100 50  0001 C CNN
	1    3550 4100
	0    1    1    0   
$EndComp
$Comp
L Device:R R3
U 1 1 5B97D390
P 2800 5200
F 0 "R3" V 2880 5200 50  0000 C CNN
F 1 "1M" V 2800 5200 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 2730 5200 50  0001 C CNN
F 3 "" H 2800 5200 50  0001 C CNN
	1    2800 5200
	1    0    0    -1  
$EndComp
Wire Wire Line
	3700 4100 3900 4100
Wire Wire Line
	3400 4100 3100 4100
Wire Wire Line
	3100 3600 3100 4100
$Comp
L power:GND #PWR023
U 1 1 5B97D670
P 3200 4750
F 0 "#PWR023" H 3200 4500 50  0001 C CNN
F 1 "GND" H 3200 4600 50  0000 C CNN
F 2 "" H 3200 4750 50  0001 C CNN
F 3 "" H 3200 4750 50  0001 C CNN
	1    3200 4750
	-1   0    0    1   
$EndComp
$Comp
L power:-VDC #PWR019
U 1 1 5B97D72A
P 2800 5400
F 0 "#PWR019" H 2800 5300 50  0001 C CNN
F 1 "-VDC" H 2800 5650 50  0000 C CNN
F 2 "" H 2800 5400 50  0001 C CNN
F 3 "" H 2800 5400 50  0001 C CNN
	1    2800 5400
	-1   0    0    1   
$EndComp
Wire Wire Line
	2800 5350 2800 5400
Wire Wire Line
	3200 4750 3200 4850
Wire Wire Line
	3200 4850 3250 4850
Wire Wire Line
	3200 3600 3100 3600
Connection ~ 3100 4100
Wire Wire Line
	4400 3600 4750 3600
Text HLabel 4750 3600 2    60   Output ~ 0
Exp_out
$Comp
L Device:R R1
U 1 1 5B97DAEE
P 2300 5100
F 0 "R1" V 2380 5100 50  0000 C CNN
F 1 "1M" V 2300 5100 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 2230 5100 50  0001 C CNN
F 3 "" H 2300 5100 50  0001 C CNN
	1    2300 5100
	0    1    1    0   
$EndComp
$Comp
L Device:R_POT_TRIM RV1
U 1 1 5B97DB37
P 3900 6150
AR Path="/5B97DB37" Ref="RV1"  Part="1" 
AR Path="/5B9414AF/5B97DB37" Ref="RV1"  Part="1" 
F 0 "RV1" V 3725 6150 50  0000 C CNN
F 1 "100k" V 3800 6150 50  0000 C CNN
F 2 "Potentiometer_SMD:Potentiometer_Bourns_3214W_Vertical" H 3900 6150 50  0001 C CNN
F 3 "" H 3900 6150 50  0001 C CNN
	1    3900 6150
	-1   0    0    1   
$EndComp
$Comp
L Device:D D1
U 1 1 5B97DB96
P 3900 5600
F 0 "D1" H 3900 5700 50  0000 C CNN
F 1 "1N4148" H 3900 5500 50  0000 C CNN
F 2 "Diode_SMD:D_SOD-323_HandSoldering" H 3900 5600 50  0001 C CNN
F 3 "" H 3900 5600 50  0001 C CNN
	1    3900 5600
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2150 5100 1900 5100
Wire Wire Line
	1900 5100 1900 6150
Wire Wire Line
	1900 6150 3750 6150
Wire Wire Line
	3900 6300 3900 6350
$Comp
L power:GND #PWR027
U 1 1 5B97E08F
P 3900 6350
F 0 "#PWR027" H 3900 6100 50  0001 C CNN
F 1 "GND" H 3900 6200 50  0000 C CNN
F 2 "" H 3900 6350 50  0001 C CNN
F 3 "" H 3900 6350 50  0001 C CNN
	1    3900 6350
	1    0    0    -1  
$EndComp
Text HLabel 2700 5950 0    60   Input ~ 0
LinFM
Wire Wire Line
	3100 5950 2700 5950
Text HLabel 2300 1700 0    60   Input ~ 0
LogFM
Wire Wire Line
	3700 1600 4000 1600
Wire Wire Line
	3900 3600 4000 3600
Wire Wire Line
	3100 5050 3250 5050
Wire Wire Line
	3100 5050 3100 5950
$Comp
L Device:R R2
U 1 1 5D0FBAFC
P 2800 4800
F 0 "R2" H 2870 4846 50  0000 L CNN
F 1 "200k" H 2870 4755 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 2730 4800 50  0001 C CNN
F 3 "~" H 2800 4800 50  0001 C CNN
	1    2800 4800
	1    0    0    -1  
$EndComp
Wire Wire Line
	2800 5050 2800 4950
$Comp
L Device:Thermistor TH1
U 1 1 61E154C0
P 2900 2400
F 0 "TH1" V 2658 2400 50  0000 C CNN
F 1 "1k8 +4110ppm" V 2749 2400 50  0000 C CNN
F 2 "Resistor_SMD:R_0805_2012Metric" H 2900 2400 50  0001 C CNN
F 3 "~" H 2900 2400 50  0001 C CNN
	1    2900 2400
	0    1    1    0   
$EndComp
Wire Wire Line
	2700 2400 2550 2400
Connection ~ 2550 1700
Wire Wire Line
	2550 5100 2450 5100
Wire Wire Line
	2550 1700 3000 1700
Connection ~ 2550 2400
Wire Wire Line
	2550 2400 2550 1700
Wire Wire Line
	2550 2400 2550 2600
Wire Wire Line
	3100 2400 3200 2400
Wire Wire Line
	3550 2400 3700 2400
Wire Wire Line
	3700 1600 3700 2400
$Comp
L Device:Thermistor TH2
U 1 1 61E9C5C6
P 2900 2600
F 0 "TH2" V 2658 2600 50  0001 C CNN
F 1 "1k8 +4110ppm" V 2749 2600 50  0001 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical" H 2900 2600 50  0001 C CNN
F 3 "~" H 2900 2600 50  0001 C CNN
	1    2900 2600
	0    1    1    0   
$EndComp
Wire Wire Line
	3100 2600 3200 2600
Connection ~ 3200 2400
Wire Wire Line
	3200 2400 3250 2400
Wire Wire Line
	2700 2600 2550 2600
Connection ~ 2550 2600
Wire Wire Line
	3200 2600 3200 2400
$Comp
L Device:Q_DUAL_PNP_PNP_C1B1B2C2E2E1 Q?
U 1 1 61EBB995
P 4200 3500
AR Path="/5B94158D/61EBB995" Ref="Q?"  Part="1" 
AR Path="/5B9414AF/61EBB995" Ref="Q1"  Part="1" 
AR Path="/61EBB995" Ref="Q1"  Part="1" 
F 0 "Q1" H 4391 3454 50  0000 L CNN
F 1 "DMMT5401" H 4391 3545 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23-6" H 4400 3600 50  0001 C CNN
F 3 "" H 4200 3500 50  0001 C CNN
	1    4200 3500
	0    1    1    0   
$EndComp
$Comp
L Device:Q_DUAL_PNP_PNP_C1B1B2C2E2E1 Q?
U 2 1 61EBB99B
P 3400 3500
AR Path="/5B94158D/61EBB99B" Ref="Q?"  Part="2" 
AR Path="/5B9414AF/61EBB99B" Ref="Q1"  Part="2" 
AR Path="/61EBB99B" Ref="Q1"  Part="2" 
F 0 "Q1" H 3591 3454 50  0000 L CNN
F 1 "DMMT5401" H 3591 3545 50  0000 L CNN
F 2 "Package_TO_SOT_SMD:SOT-23-6" H 3600 3600 50  0001 C CNN
F 3 "" H 3400 3500 50  0001 C CNN
	2    3400 3500
	0    -1   1    0   
$EndComp
Wire Wire Line
	2550 2600 2550 5100
Wire Wire Line
	2800 4100 3100 4100
Wire Wire Line
	3100 4100 3100 5050
Connection ~ 3100 5050
Wire Wire Line
	2800 4100 2800 4650
Wire Wire Line
	3400 3250 3400 3300
Wire Wire Line
	3900 5750 3900 6000
$Comp
L power:GND #PWR0120
U 1 1 61F583B8
P 4000 2700
F 0 "#PWR0120" H 4000 2450 50  0001 C CNN
F 1 "GND" H 4005 2527 50  0000 C CNN
F 2 "" H 4000 2700 50  0001 C CNN
F 3 "" H 4000 2700 50  0001 C CNN
	1    4000 2700
	1    0    0    -1  
$EndComp
Connection ~ 3900 4100
Wire Wire Line
	3900 4000 3900 4100
Wire Wire Line
	3850 4950 3900 4950
Connection ~ 3900 4950
Wire Wire Line
	3900 4950 3900 5450
Wire Wire Line
	3900 4100 3900 4950
Connection ~ 3900 3600
Wire Wire Line
	3900 3600 3900 3700
Wire Wire Line
	4200 2150 4200 3300
$Comp
L Amplifier_Operational:TL072 U1
U 3 1 61F514C4
P 7250 1950
F 0 "U1" H 7208 1996 50  0000 L CNN
F 1 "TL072" H 7208 1905 50  0000 L CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 7250 1950 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/tl071.pdf" H 7250 1950 50  0001 C CNN
	3    7250 1950
	1    0    0    -1  
$EndComp
$Comp
L Device:C C?
U 1 1 61F66E04
P 7600 1750
AR Path="/61F66E04" Ref="C?"  Part="1" 
AR Path="/5B9414AF/61F66E04" Ref="C3"  Part="1" 
F 0 "C3" H 7625 1850 50  0000 L CNN
F 1 "100nF" H 7625 1650 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 7638 1600 50  0001 C CNN
F 3 "" H 7600 1750 50  0001 C CNN
	1    7600 1750
	1    0    0    -1  
$EndComp
$Comp
L Device:C C?
U 1 1 61F66E0A
P 7600 2150
AR Path="/61F66E0A" Ref="C?"  Part="1" 
AR Path="/5B9414AF/61F66E0A" Ref="C4"  Part="1" 
F 0 "C4" H 7625 2250 50  0000 L CNN
F 1 "100nF" H 7625 2050 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 7638 2000 50  0001 C CNN
F 3 "" H 7600 2150 50  0001 C CNN
	1    7600 2150
	1    0    0    -1  
$EndComp
Wire Wire Line
	7600 2350 7600 2300
Wire Wire Line
	7600 1900 7600 1950
Connection ~ 7600 1950
Wire Wire Line
	7600 1550 7600 1600
Wire Wire Line
	7600 1950 7600 2000
Wire Wire Line
	7600 1950 7850 1950
$Comp
L power:GND #PWR0121
U 1 1 61F68109
P 7850 1950
F 0 "#PWR0121" H 7850 1700 50  0001 C CNN
F 1 "GND" V 7855 1822 50  0000 R CNN
F 2 "" H 7850 1950 50  0001 C CNN
F 3 "" H 7850 1950 50  0001 C CNN
	1    7850 1950
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7150 1550 7150 1650
Wire Wire Line
	7150 1550 7600 1550
Wire Wire Line
	7150 1550 7150 1500
Connection ~ 7150 1550
Wire Wire Line
	7150 2350 7150 2250
Wire Wire Line
	7150 2350 7600 2350
Wire Wire Line
	7150 2400 7150 2350
Connection ~ 7150 2350
$EndSCHEMATC