_autosave-double-gain.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "High Z amplifier for piezo electric crystal"
Date "27 07 2020"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:C C4
U 1 1 5F26F275
P 6500 4150
F 0 "C4" V 6248 4150 50  0000 C CNN
F 1 "10uF" V 6339 4150 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 6538 4000 50  0001 C CNN
F 3 "~" H 6500 4150 50  0001 C CNN
	1    6500 4150
	0    1    1    0   
$EndComp
$Comp
L Device:R R5
U 1 1 5F27508E
P 6150 4150
F 0 "R5" V 5943 4150 50  0000 C CNN
F 1 "470" V 6034 4150 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 6080 4150 50  0001 C CNN
F 3 "~" H 6150 4150 50  0001 C CNN
	1    6150 4150
	0    1    1    0   
$EndComp
Wire Wire Line
	6350 4150 6300 4150
Wire Wire Line
	6000 4150 5950 4150
Wire Wire Line
	5950 4400 5950 4150
$Comp
L Device:R R2
U 1 1 60781143
P 5250 5200
F 0 "R2" V 5350 5200 50  0000 C CNN
F 1 "40K" V 5134 5200 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 5180 5200 50  0001 C CNN
F 3 "~" H 5250 5200 50  0001 C CNN
	1    5250 5200
	0    1    1    0   
$EndComp
Text GLabel 8050 4950 0    50   Input ~ 0
V-
$Comp
L power:GND #PWR08
U 1 1 60CBE538
P 8600 5400
F 0 "#PWR08" H 8600 5150 50  0001 C CNN
F 1 "GND" H 8605 5227 50  0000 C CNN
F 2 "" H 8600 5400 50  0001 C CNN
F 3 "" H 8600 5400 50  0001 C CNN
	1    8600 5400
	1    0    0    -1  
$EndComp
$Comp
L Device:R R3
U 1 1 60CC1B82
P 7200 3900
F 0 "R3" H 7270 3946 50  0000 L CNN
F 1 "4.7K" H 7270 3855 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 7130 3900 50  0001 C CNN
F 3 "~" H 7200 3900 50  0001 C CNN
	1    7200 3900
	1    0    0    -1  
$EndComp
$Comp
L Device:R R4
U 1 1 60CC2755
P 7550 3900
F 0 "R4" H 7620 3946 50  0000 L CNN
F 1 "4.7K" H 7620 3855 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 7480 3900 50  0001 C CNN
F 3 "~" H 7550 3900 50  0001 C CNN
	1    7550 3900
	1    0    0    -1  
$EndComp
Wire Wire Line
	8600 5400 8600 4950
Wire Wire Line
	8300 4600 8300 4400
Wire Wire Line
	8600 4100 7200 4100
Wire Wire Line
	6650 4100 6650 4150
Wire Wire Line
	7200 4050 7200 4100
Connection ~ 7200 4100
Wire Wire Line
	7200 4100 6650 4100
Wire Wire Line
	7550 4050 7550 4600
Wire Wire Line
	7550 4600 8300 4600
Wire Wire Line
	7200 3750 7550 3750
$Comp
L Device:D_Zener D1
U 1 1 60CCADCC
P 6750 3600
F 0 "D1" V 6704 3680 50  0000 L CNN
F 1 "1N936B ( 9V )" V 6795 3680 50  0000 L CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 6750 3600 50  0001 C CNN
F 3 "~" H 6750 3600 50  0001 C CNN
	1    6750 3600
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR02
U 1 1 60CCD631
P 6750 3800
F 0 "#PWR02" H 6750 3550 50  0001 C CNN
F 1 "GND" H 6755 3627 50  0000 C CNN
F 2 "" H 6750 3800 50  0001 C CNN
F 3 "" H 6750 3800 50  0001 C CNN
	1    6750 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	6750 3800 6750 3750
Wire Wire Line
	7550 3750 7550 3450
Wire Wire Line
	7550 3450 6750 3450
Connection ~ 7550 3750
$Comp
L Device:C C3
U 1 1 60CCFCFB
P 6000 3000
F 0 "C3" H 6115 3046 50  0000 L CNN
F 1 "33uF" H 6115 2955 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 6038 2850 50  0001 C CNN
F 3 "~" H 6000 3000 50  0001 C CNN
	1    6000 3000
	1    0    0    -1  
$EndComp
$Comp
L Device:R R1
U 1 1 60CD2387
P 6500 2850
F 0 "R1" V 6600 2850 50  0000 C CNN
F 1 "100" V 6384 2850 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 6430 2850 50  0001 C CNN
F 3 "~" H 6500 2850 50  0001 C CNN
	1    6500 2850
	0    1    1    0   
$EndComp
Connection ~ 6750 3450
$Comp
L power:GND #PWR01
U 1 1 60CD4831
P 6000 3200
F 0 "#PWR01" H 6000 2950 50  0001 C CNN
F 1 "GND" H 6005 3027 50  0000 C CNN
F 2 "" H 6000 3200 50  0001 C CNN
F 3 "" H 6000 3200 50  0001 C CNN
	1    6000 3200
	1    0    0    -1  
$EndComp
Wire Wire Line
	6000 3200 6000 3150
$Comp
L Device:C C1
U 1 1 60CD8E71
P 5100 3000
F 0 "C1" H 5215 3046 50  0000 L CNN
F 1 "0.1uF" H 5215 2955 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 5138 2850 50  0001 C CNN
F 3 "~" H 5100 3000 50  0001 C CNN
	1    5100 3000
	1    0    0    -1  
$EndComp
$Comp
L Device:C C2
U 1 1 60CD8F9F
P 5600 3000
F 0 "C2" H 5715 3046 50  0000 L CNN
F 1 "10uF" H 5715 2955 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 5638 2850 50  0001 C CNN
F 3 "~" H 5600 3000 50  0001 C CNN
	1    5600 3000
	1    0    0    -1  
$EndComp
Wire Wire Line
	6750 2850 6650 2850
Wire Wire Line
	6750 2850 6750 3450
Wire Wire Line
	6350 2850 6000 2850
Wire Wire Line
	6000 2850 5600 2850
Connection ~ 6000 2850
Wire Wire Line
	5600 2850 5100 2850
Connection ~ 5600 2850
Wire Wire Line
	5100 3150 5600 3150
Wire Wire Line
	5600 3150 6000 3150
Connection ~ 5600 3150
Connection ~ 6000 3150
Text GLabel 5100 2800 1    50   Input ~ 0
VCC
Text GLabel 5150 3950 1    50   Input ~ 0
VCC
Wire Wire Line
	5150 3950 5150 4100
Connection ~ 5100 2850
Text Notes 8850 4600 0    50   ~ 0
+48 V phantom power
Wire Wire Line
	2100 5600 2100 5500
Wire Wire Line
	2100 4200 2100 4500
$Comp
L power:GND #PWR04
U 1 1 60D31041
P 2100 5600
F 0 "#PWR04" H 2100 5350 50  0001 C CNN
F 1 "GND" H 2105 5427 50  0000 C CNN
F 2 "" H 2100 5600 50  0001 C CNN
F 3 "" H 2100 5600 50  0001 C CNN
	1    2100 5600
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x01_Female J3
U 1 1 60D3064D
P 2100 5200
F 0 "J3" H 1992 5067 50  0000 C CNN
F 1 "Conn_01x01_Female" H 1992 5066 50  0001 C CNN
F 2 "MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad" H 2100 5200 50  0001 C CNN
F 3 "~" H 2100 5200 50  0001 C CNN
	1    2100 5200
	0    -1   -1   0   
$EndComp
$Comp
L Connector:Conn_01x01_Female J1
U 1 1 60D2F44A
P 2100 4700
F 0 "J1" H 1992 4475 50  0000 C CNN
F 1 "Conn_01x01_Female" H 1992 4566 50  0001 C CNN
F 2 "MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad" H 2100 4700 50  0001 C CNN
F 3 "~" H 2100 4700 50  0001 C CNN
	1    2100 4700
	0    1    1    0   
$EndComp
$Comp
L Device:C C5
U 1 1 60D15708
P 2100 4050
F 0 "C5" V 1848 4050 50  0000 C CNN
F 1 "10uF" V 1939 4050 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 2138 3900 50  0001 C CNN
F 3 "~" H 2100 4050 50  0001 C CNN
	1    2100 4050
	1    0    0    -1  
$EndComp
$Comp
L Device:D D2
U 1 1 60D115A5
P 3800 4550
F 0 "D2" V 3846 4470 50  0000 R CNN
F 1 "1N4148" V 3755 4470 50  0000 R CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 3800 4550 50  0001 C CNN
F 3 "~" H 3800 4550 50  0001 C CNN
	1    3800 4550
	0    1    1    0   
$EndComp
NoConn ~ 5250 4100
NoConn ~ 5250 4700
NoConn ~ 5350 4700
Text GLabel 5150 4800 3    50   Input ~ 0
V-
Wire Wire Line
	5150 4800 5150 4700
$Comp
L Device:R R7
U 1 1 60CDC00E
P 2100 3600
F 0 "R7" V 1893 3600 50  0000 C CNN
F 1 "1M" V 1984 3600 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 2030 3600 50  0001 C CNN
F 3 "~" H 2100 3600 50  0001 C CNN
	1    2100 3600
	1    0    0    -1  
$EndComp
Wire Wire Line
	2100 3750 2100 3850
$Comp
L Device:D D3
U 1 1 60CE8067
P 3800 5000
F 0 "D3" V 3846 4920 50  0000 R CNN
F 1 "1N4148" V 3755 4920 50  0000 R CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 3800 5000 50  0001 C CNN
F 3 "~" H 3800 5000 50  0001 C CNN
	1    3800 5000
	0    1    1    0   
$EndComp
Wire Wire Line
	3800 4850 3800 4700
Wire Wire Line
	3800 5150 3800 5400
Connection ~ 7550 4600
$Comp
L Amplifier_Operational:NE5534 U1
U 1 1 60CCF692
P 5250 4400
F 0 "U1" H 5594 4446 50  0000 L CNN
F 1 "NE5534" H 5594 4355 50  0000 L CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket" H 5300 4450 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/ne5534.pdf" H 5300 4550 50  0001 C CNN
	1    5250 4400
	1    0    0    -1  
$EndComp
Wire Wire Line
	7400 4600 7550 4600
$Comp
L Device:C C7
U 1 1 6077AA47
P 7250 4600
F 0 "C7" V 6998 4600 50  0000 C CNN
F 1 "10uF" V 7089 4600 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 7288 4450 50  0001 C CNN
F 3 "~" H 7250 4600 50  0001 C CNN
	1    7250 4600
	0    1    1    0   
$EndComp
Wire Wire Line
	7100 4600 7050 4600
$Comp
L Device:R R8
U 1 1 60779FC0
P 6900 4600
F 0 "R8" V 6693 4600 50  0000 C CNN
F 1 "470" V 6784 4600 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 6830 4600 50  0001 C CNN
F 3 "~" H 6900 4600 50  0001 C CNN
	1    6900 4600
	0    1    1    0   
$EndComp
$Comp
L Device:R R6
U 1 1 60D0AB7C
P 3000 3300
F 0 "R6" V 2793 3300 50  0000 C CNN
F 1 "56K" V 2884 3300 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 2930 3300 50  0001 C CNN
F 3 "~" H 3000 3300 50  0001 C CNN
	1    3000 3300
	1    0    0    -1  
$EndComp
$Comp
L Device:R R10
U 1 1 60D0BA9E
P 2800 5200
F 0 "R10" V 2593 5200 50  0000 C CNN
F 1 "56K" V 2684 5200 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 2730 5200 50  0001 C CNN
F 3 "~" H 2800 5200 50  0001 C CNN
	1    2800 5200
	1    0    0    -1  
$EndComp
$Comp
L Device:C C8
U 1 1 60D10218
P 3050 5200
F 0 "C8" H 3165 5246 50  0000 L CNN
F 1 "10uF" H 3165 5155 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 3088 5050 50  0001 C CNN
F 3 "~" H 3050 5200 50  0001 C CNN
	1    3050 5200
	1    0    0    -1  
$EndComp
Wire Wire Line
	3050 5050 3000 5050
Wire Wire Line
	3050 5350 2900 5350
Wire Wire Line
	2900 5350 2900 5400
Wire Wire Line
	2900 5500 2100 5500
Connection ~ 2900 5350
Wire Wire Line
	2900 5350 2800 5350
Connection ~ 2100 5500
Wire Wire Line
	2100 5500 2100 5400
Wire Wire Line
	3800 5400 2900 5400
Connection ~ 2900 5400
Wire Wire Line
	2900 5400 2900 5500
Wire Wire Line
	2100 3850 2550 3850
Wire Wire Line
	2550 3850 2550 4700
Wire Wire Line
	2550 4700 3800 4700
Connection ~ 2100 3850
Wire Wire Line
	2100 3850 2100 3900
Connection ~ 3800 4700
Wire Wire Line
	4200 4300 4200 4700
Wire Wire Line
	4200 4700 3800 4700
Wire Wire Line
	5550 4400 5950 4400
Connection ~ 5550 4400
$Comp
L Device:R R9
U 1 1 60D282CB
P 4400 4650
F 0 "R9" V 4500 4650 50  0000 C CNN
F 1 "1K" V 4284 4650 50  0000 C CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 4330 4650 50  0001 C CNN
F 3 "~" H 4400 4650 50  0001 C CNN
	1    4400 4650
	-1   0    0    1   
$EndComp
$Comp
L Device:C C6
U 1 1 60D29248
P 4400 5100
F 0 "C6" V 4148 5100 50  0000 C CNN
F 1 "47uF" V 4239 5100 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm" H 4438 4950 50  0001 C CNN
F 3 "~" H 4400 5100 50  0001 C CNN
	1    4400 5100
	-1   0    0    1   
$EndComp
Wire Wire Line
	4400 4950 4400 4800
Wire Wire Line
	4400 5250 4400 5400
Wire Wire Line
	8050 4950 8600 4950
Connection ~ 3000 5050
Wire Wire Line
	3000 5050 2800 5050
Wire Wire Line
	2100 3450 3000 3450
Connection ~ 3000 3450
Wire Wire Line
	3000 3450 3000 5050
Wire Wire Line
	3000 3150 3800 3150
Wire Wire Line
	3800 3150 3800 4400
Wire Wire Line
	3900 3150 3800 3150
Connection ~ 3800 3150
Connection ~ 8600 4950
Wire Wire Line
	8600 4950 8600 4700
Text GLabel 5900 5400 1    50   Input ~ 0
VCC
Wire Wire Line
	5900 5400 5900 5550
NoConn ~ 6000 5550
NoConn ~ 6000 6150
NoConn ~ 6100 6150
Text GLabel 5900 6250 3    50   Input ~ 0
V-
Wire Wire Line
	5900 6250 5900 6150
$Comp
L Amplifier_Operational:NE5534 U2
U 1 1 60D5461E
P 6000 5850
F 0 "U2" H 6344 5896 50  0000 L CNN
F 1 "NE5534" H 6344 5805 50  0000 L CNN
F 2 "Package_DIP:DIP-8_W7.62mm_Socket" H 6050 5900 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/ne5534.pdf" H 6050 6000 50  0001 C CNN
	1    6000 5850
	1    0    0    -1  
$EndComp
Wire Wire Line
	5700 5750 5550 5750
Wire Wire Line
	5700 5950 5700 6600
Wire Wire Line
	5700 6600 6250 6600
Wire Wire Line
	6250 6600 6250 6100
Wire Wire Line
	6250 6100 6300 6100
Wire Wire Line
	6300 6100 6300 5850
Wire Wire Line
	6750 4600 6300 4600
Wire Wire Line
	6300 4600 6300 5850
Connection ~ 6300 5850
Connection ~ 3800 5400
Wire Wire Line
	4400 5400 3800 5400
Wire Wire Line
	4950 4300 4200 4300
Wire Wire Line
	5100 2850 5100 2800
Wire Wire Line
	3900 2850 3900 3150
Wire Wire Line
	3900 2850 5100 2850
Wire Wire Line
	5550 4400 5550 5200
Wire Wire Line
	5400 5200 5550 5200
Connection ~ 5550 5200
Wire Wire Line
	5550 5200 5550 5750
Wire Wire Line
	4400 4500 4850 4500
Wire Wire Line
	5100 5200 4850 5200
Wire Wire Line
	4850 5200 4850 4500
Connection ~ 4850 4500
Wire Wire Line
	4850 4500 4950 4500
Text Notes 2150 5150 1    50   ~ 0
Piezo XTAL
$Comp
L Connector:Conn_01x01_Female J2
U 1 1 60CC9F66
P 8800 4100
F 0 "J2" H 8692 3875 50  0000 C CNN
F 1 "pin2" H 8692 3966 50  0000 C CNN
F 2 "MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad" H 8800 4100 50  0001 C CNN
F 3 "~" H 8800 4100 50  0001 C CNN
	1    8800 4100
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x01_Female J4
U 1 1 60CCD14D
P 8500 4400
F 0 "J4" H 8392 4175 50  0000 C CNN
F 1 "pin3" H 8392 4266 50  0000 C CNN
F 2 "MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad" H 8500 4400 50  0001 C CNN
F 3 "~" H 8500 4400 50  0001 C CNN
	1    8500 4400
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x01_Female J5
U 1 1 60CCE1F6
P 8800 4700
F 0 "J5" H 8692 4475 50  0000 C CNN
F 1 "pin1" H 8692 4566 50  0000 C CNN
F 2 "MountingHole:MountingHole_2.2mm_M2_DIN965_Pad" H 8800 4700 50  0001 C CNN
F 3 "~" H 8800 4700 50  0001 C CNN
	1    8800 4700
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x01_Female J6
U 1 1 60CD9D2B
P 2150 6700
F 0 "J6" H 2042 6567 50  0000 C CNN
F 1 "Conn_01x01_Female" H 2042 6566 50  0001 C CNN
F 2 "MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad" H 2150 6700 50  0001 C CNN
F 3 "~" H 2150 6700 50  0001 C CNN
	1    2150 6700
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x01_Female J7
U 1 1 60CDB8E1
P 2150 6950
F 0 "J7" H 2042 6817 50  0000 C CNN
F 1 "Conn_01x01_Female" H 2042 6816 50  0001 C CNN
F 2 "MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad" H 2150 6950 50  0001 C CNN
F 3 "~" H 2150 6950 50  0001 C CNN
	1    2150 6950
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x01_Female J8
U 1 1 60CDBF22
P 2150 7200
F 0 "J8" H 2042 7067 50  0000 C CNN
F 1 "Conn_01x01_Female" H 2042 7066 50  0001 C CNN
F 2 "MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad" H 2150 7200 50  0001 C CNN
F 3 "~" H 2150 7200 50  0001 C CNN
	1    2150 7200
	1    0    0    -1  
$EndComp
$Comp
L Connector:Conn_01x01_Female J9
U 1 1 60CDC51F
P 2150 7450
F 0 "J9" H 2042 7317 50  0000 C CNN
F 1 "Conn_01x01_Female" H 2042 7316 50  0001 C CNN
F 2 "MountingHole:MountingHole_2.2mm_M2_ISO7380_Pad" H 2150 7450 50  0001 C CNN
F 3 "~" H 2150 7450 50  0001 C CNN
	1    2150 7450
	1    0    0    -1  
$EndComp
Wire Wire Line
	1950 6700 1950 6950
Wire Wire Line
	1950 6950 1950 7200
Connection ~ 1950 6950
Wire Wire Line
	1950 7200 1950 7450
Connection ~ 1950 7200
Text Notes 4550 5900 0    50   ~ 0
R2 Gain values in dB:\n20K=26\n30K=29\n40K=32\n50K=34\n60K=35
$Comp
L power:Earth #PWR0101
U 1 1 60D17B0A
P 1700 6950
F 0 "#PWR0101" H 1700 6700 50  0001 C CNN
F 1 "Earth" H 1700 6800 50  0001 C CNN
F 2 "" H 1700 6950 50  0001 C CNN
F 3 "~" H 1700 6950 50  0001 C CNN
	1    1700 6950
	1    0    0    -1  
$EndComp
Wire Wire Line
	1950 6950 1700 6950
$EndSCHEMATC