synthesis.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 5
Title "Black Pill uSDX"
Date "2020-08-25"
Rev "2.0.3"
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L 74xx:74LS00 U?
U 5 1 5F32730A
P 10250 5400
AR Path="/5F32730A" Ref="U?"  Part="5" 
AR Path="/5ED6119E/5F32730A" Ref="U?"  Part="5" 
AR Path="/5F5D026F/5F32730A" Ref="U302"  Part="5" 
F 0 "U302" H 10480 5446 50  0000 L CNN
F 1 "74ACT00" H 10480 5355 50  0000 L CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 10250 5400 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 10250 5400 50  0001 C CNN
	5    10250 5400
	1    0    0    -1  
$EndComp
$Comp
L Amplifier_Operational:LM4562 U?
U 3 1 5F32731C
P 8900 3850
AR Path="/5ED6119E/5F32731C" Ref="U?"  Part="3" 
AR Path="/5F5D026F/5F32731C" Ref="U305"  Part="3" 
F 0 "U305" H 8858 3896 50  0000 L CNN
F 1 "LM4562" H 8858 3805 50  0000 L CNN
F 2 "Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm" H 8900 3850 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm4562.pdf" H 8900 3850 50  0001 C CNN
	3    8900 3850
	1    0    0    -1  
$EndComp
Text HLabel 850  5100 0    50   Input ~ 0
Rx
$Comp
L Device:R_US R?
U 1 1 5F327351
P 950 4900
AR Path="/5ED6119E/5F327351" Ref="R?"  Part="1" 
AR Path="/5F5D026F/5F327351" Ref="R301"  Part="1" 
F 0 "R301" H 882 4854 50  0000 R CNN
F 1 "200" H 882 4945 50  0000 R CNN
F 2 "Resistors_SMD:R_0805" V 990 4890 50  0001 C CNN
F 3 "~" H 950 4900 50  0001 C CNN
	1    950  4900
	-1   0    0    1   
$EndComp
Wire Wire Line
	850  5100 950  5100
$Comp
L power:GND #PWR?
U 1 1 5F327370
P 10250 5900
AR Path="/5ED6119E/5F327370" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F327370" Ref="#PWR0324"  Part="1" 
F 0 "#PWR0324" H 10250 5650 50  0001 C CNN
F 1 "GND" H 10255 5727 50  0000 C CNN
F 2 "" H 10250 5900 50  0001 C CNN
F 3 "" H 10250 5900 50  0001 C CNN
	1    10250 5900
	1    0    0    -1  
$EndComp
Wire Wire Line
	2250 4200 2500 4200
Wire Wire Line
	2250 4300 2500 4300
Text Label 2300 4200 0    50   ~ 0
CLK0
Text Label 2300 4300 0    50   ~ 0
CLK1
$Comp
L Device:R_US R?
U 1 1 5F3273A0
P 5350 7150
AR Path="/5ED6119E/5F3273A0" Ref="R?"  Part="1" 
AR Path="/5F5D026F/5F3273A0" Ref="R306"  Part="1" 
F 0 "R306" V 5145 7150 50  0000 C CNN
F 1 "82k" V 5236 7150 50  0000 C CNN
F 2 "Resistors_SMD:R_0805" V 5390 7140 50  0001 C CNN
F 3 "~" H 5350 7150 50  0001 C CNN
	1    5350 7150
	0    1    1    0   
$EndComp
$Comp
L Device:C C?
U 1 1 5F3273A6
P 5200 7400
AR Path="/5ED6119E/5F3273A6" Ref="C?"  Part="1" 
AR Path="/5F5D026F/5F3273A6" Ref="C307"  Part="1" 
F 0 "C307" V 4948 7400 50  0000 C CNN
F 1 "470p" V 5039 7400 50  0000 C CNN
F 2 "Capacitors_SMD:C_0805" H 5238 7250 50  0001 C CNN
F 3 "~" H 5200 7400 50  0001 C CNN
	1    5200 7400
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5050 7400 4750 7400
Wire Wire Line
	5350 7400 5600 7400
Wire Wire Line
	5700 6850 5600 6850
$Comp
L Device:C C?
U 1 1 5F327410
P 3250 7300
AR Path="/5ED6119E/5F327410" Ref="C?"  Part="1" 
AR Path="/5F5D026F/5F327410" Ref="C304"  Part="1" 
F 0 "C304" H 3135 7254 50  0000 R CNN
F 1 "330n" H 3135 7345 50  0000 R CNN
F 2 "Capacitors_SMD:C_0805" H 3288 7150 50  0001 C CNN
F 3 "~" H 3250 7300 50  0001 C CNN
	1    3250 7300
	-1   0    0    -1  
$EndComp
$Comp
L Device:C C?
U 1 1 5F327416
P 2800 7300
AR Path="/5ED6119E/5F327416" Ref="C?"  Part="1" 
AR Path="/5F5D026F/5F327416" Ref="C302"  Part="1" 
F 0 "C302" H 2685 7254 50  0000 R CNN
F 1 "330n" H 2685 7345 50  0000 R CNN
F 2 "Capacitors_SMD:C_0805" H 2838 7150 50  0001 C CNN
F 3 "~" H 2800 7300 50  0001 C CNN
	1    2800 7300
	-1   0    0    1   
$EndComp
$Comp
L Device:C C?
U 1 1 5F32741E
P 3450 5950
AR Path="/5ED6119E/5F32741E" Ref="C?"  Part="1" 
AR Path="/5F5D026F/5F32741E" Ref="C305"  Part="1" 
F 0 "C305" H 3335 5904 50  0000 R CNN
F 1 "330n" H 3335 5995 50  0000 R CNN
F 2 "Capacitors_SMD:C_0805" H 3488 5800 50  0001 C CNN
F 3 "~" H 3450 5950 50  0001 C CNN
	1    3450 5950
	-1   0    0    1   
$EndComp
$Comp
L Device:C C?
U 1 1 5F327424
P 3000 5950
AR Path="/5ED6119E/5F327424" Ref="C?"  Part="1" 
AR Path="/5F5D026F/5F327424" Ref="C303"  Part="1" 
F 0 "C303" H 2885 5904 50  0000 R CNN
F 1 "330n" H 2885 5995 50  0000 R CNN
F 2 "Capacitors_SMD:C_0805" H 3038 5800 50  0001 C CNN
F 3 "~" H 3000 5950 50  0001 C CNN
	1    3000 5950
	-1   0    0    1   
$EndComp
Wire Wire Line
	3450 5700 3450 5800
Wire Wire Line
	3000 5400 3000 5800
Wire Wire Line
	3250 7050 3250 7150
Wire Wire Line
	2800 6750 2800 7150
Connection ~ 3000 5400
Connection ~ 3450 5700
Connection ~ 3250 7050
Connection ~ 2800 6750
$Comp
L uSDX:FST3253 U?
U 1 1 5F3274F2
P 1850 4600
AR Path="/5ED6119E/5F3274F2" Ref="U?"  Part="1" 
AR Path="/5F5D026F/5F3274F2" Ref="U301"  Part="1" 
F 0 "U301" H 1850 5581 50  0000 C CNN
F 1 "74CBTLV3253" H 1800 5450 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm" H 2100 3750 50  0001 L CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 1860 4600 50  0001 C CNN
	1    1850 4600
	-1   0    0    -1  
$EndComp
$Comp
L Device:Ferrite_Bead FB?
U 1 1 5F327517
P 8800 3400
AR Path="/5ED6119E/5F327517" Ref="FB?"  Part="1" 
AR Path="/5F5D026F/5F327517" Ref="FB301"  Part="1" 
F 0 "FB301" H 8663 3354 50  0000 R CNN
F 1 "Ferrite_Bead" H 8663 3445 50  0000 R CNN
F 2 "Resistors_SMD:R_0805" V 8730 3400 50  0001 C CNN
F 3 "~" H 8800 3400 50  0001 C CNN
	1    8800 3400
	-1   0    0    1   
$EndComp
$Comp
L Device:C C?
U 1 1 5F32751D
P 8350 3900
AR Path="/5ED6119E/5F32751D" Ref="C?"  Part="1" 
AR Path="/5F5D026F/5F32751D" Ref="C309"  Part="1" 
F 0 "C309" H 8235 3854 50  0000 R CNN
F 1 "100n" H 8235 3945 50  0000 R CNN
F 2 "Capacitors_SMD:C_0805" H 8388 3750 50  0001 C CNN
F 3 "~" H 8350 3900 50  0001 C CNN
	1    8350 3900
	-1   0    0    1   
$EndComp
Wire Wire Line
	8350 4050 8350 4150
Wire Wire Line
	8350 3550 8350 3750
Wire Wire Line
	8800 3550 8350 3550
Connection ~ 8800 3550
Connection ~ 950  5100
Wire Wire Line
	950  5050 950  5100
$Comp
L 74xx:74LS00 U?
U 3 1 5F327591
P 3550 4800
AR Path="/5F327591" Ref="U?"  Part="4" 
AR Path="/5ED6119E/5F327591" Ref="U?"  Part="4" 
AR Path="/5F5D026F/5F327591" Ref="U302"  Part="3" 
F 0 "U302" H 3550 5125 50  0000 C CNN
F 1 "74ACT00" H 3550 5034 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 3550 4800 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 3550 4800 50  0001 C CNN
	3    3550 4800
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F3275DC
P 1650 5500
AR Path="/5ED6119E/5F3275DC" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F3275DC" Ref="#PWR0306"  Part="1" 
F 0 "#PWR0306" H 1650 5250 50  0001 C CNN
F 1 "GND" H 1655 5327 50  0000 C CNN
F 2 "" H 1650 5500 50  0001 C CNN
F 3 "" H 1650 5500 50  0001 C CNN
	1    1650 5500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F3275E2
P 2400 4050
AR Path="/5ED6119E/5F3275E2" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F3275E2" Ref="#PWR0307"  Part="1" 
F 0 "#PWR0307" H 2400 3800 50  0001 C CNN
F 1 "GND" H 2405 3877 50  0000 C CNN
F 2 "" H 2400 4050 50  0001 C CNN
F 3 "" H 2400 4050 50  0001 C CNN
	1    2400 4050
	0    -1   -1   0   
$EndComp
Wire Wire Line
	2400 4050 2300 4050
Wire Wire Line
	2300 4050 2300 4100
Wire Wire Line
	2300 4100 2250 4100
$Comp
L power:+3.3V #PWR?
U 1 1 5F347400
P 10250 4900
AR Path="/5ED6119E/5F347400" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F347400" Ref="#PWR0323"  Part="1" 
F 0 "#PWR0323" H 10250 4750 50  0001 C CNN
F 1 "+3.3V" H 10265 5073 50  0000 C CNN
F 2 "" H 10250 4900 50  0001 C CNN
F 3 "" H 10250 4900 50  0001 C CNN
	1    10250 4900
	1    0    0    -1  
$EndComp
Wire Wire Line
	3950 4700 3850 4700
Wire Wire Line
	3950 4900 3850 4900
Wire Wire Line
	2250 5200 2750 5200
Wire Wire Line
	3950 4600 3950 4700
Connection ~ 3950 4700
$Comp
L 74xx:74LS00 U?
U 4 1 5F4A8396
P 3550 4000
AR Path="/5F4A8396" Ref="U?"  Part="4" 
AR Path="/5ED6119E/5F4A8396" Ref="U?"  Part="4" 
AR Path="/5F5D026F/5F4A8396" Ref="U302"  Part="4" 
F 0 "U302" H 3550 4325 50  0000 C CNN
F 1 "74ACT00" H 3550 4234 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 3550 4000 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 3550 4000 50  0001 C CNN
	4    3550 4000
	-1   0    0    -1  
$EndComp
Wire Wire Line
	3950 3900 3850 3900
Wire Wire Line
	3950 4100 3850 4100
Wire Wire Line
	3250 4000 3200 4000
Wire Wire Line
	3950 3800 3950 3900
Connection ~ 3950 3900
Wire Wire Line
	2300 4000 2250 4000
Wire Wire Line
	2300 4000 2300 4050
Connection ~ 2300 4050
Wire Wire Line
	1300 4600 1450 4600
$Comp
L Device:R_US R?
U 1 1 5F636131
P 950 5400
AR Path="/5ED6119E/5F636131" Ref="R?"  Part="1" 
AR Path="/5F5D026F/5F636131" Ref="R302"  Part="1" 
F 0 "R302" H 882 5354 50  0000 R CNN
F 1 "200" H 882 5445 50  0000 R CNN
F 2 "Resistors_SMD:R_0805" V 990 5390 50  0001 C CNN
F 3 "~" H 950 5400 50  0001 C CNN
	1    950  5400
	-1   0    0    1   
$EndComp
$Comp
L power:+12V #PWR0320
U 1 1 5F65E321
P 8800 3250
F 0 "#PWR0320" H 8800 3100 50  0001 C CNN
F 1 "+12V" H 8815 3423 50  0000 C CNN
F 2 "" H 8800 3250 50  0001 C CNN
F 3 "" H 8800 3250 50  0001 C CNN
	1    8800 3250
	1    0    0    -1  
$EndComp
Wire Wire Line
	8350 4150 8550 4150
$Comp
L power:GND #PWR?
U 1 1 5F6628E4
P 8550 4150
AR Path="/5ED6119E/5F6628E4" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F6628E4" Ref="#PWR0317"  Part="1" 
F 0 "#PWR0317" H 8550 3900 50  0001 C CNN
F 1 "GND" H 8555 3977 50  0000 C CNN
F 2 "" H 8550 4150 50  0001 C CNN
F 3 "" H 8550 4150 50  0001 C CNN
	1    8550 4150
	1    0    0    -1  
$EndComp
Connection ~ 8550 4150
Wire Wire Line
	8550 4150 8800 4150
$Comp
L power:GNDA #PWR?
U 1 1 5F643F9F
P 950 5550
AR Path="/5ED6119E/5F643F9F" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F643F9F" Ref="#PWR0302"  Part="1" 
F 0 "#PWR0302" H 950 5300 50  0001 C CNN
F 1 "GNDA" H 955 5377 50  0000 C CNN
F 2 "" H 950 5550 50  0001 C CNN
F 3 "" H 950 5550 50  0001 C CNN
	1    950  5550
	1    0    0    -1  
$EndComp
Wire Wire Line
	3050 7450 3250 7450
Wire Wire Line
	2800 7450 3050 7450
Connection ~ 3050 7450
$Comp
L power:GNDA #PWR?
U 1 1 5F327544
P 3050 7450
AR Path="/5ED6119E/5F327544" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F327544" Ref="#PWR0308"  Part="1" 
F 0 "#PWR0308" H 3050 7200 50  0001 C CNN
F 1 "GNDA" H 3055 7277 50  0000 C CNN
F 2 "" H 3050 7450 50  0001 C CNN
F 3 "" H 3050 7450 50  0001 C CNN
	1    3050 7450
	1    0    0    -1  
$EndComp
Wire Wire Line
	3250 6100 3450 6100
Wire Wire Line
	3000 6100 3250 6100
Connection ~ 3250 6100
$Comp
L power:GNDA #PWR?
U 1 1 5F32754C
P 3250 6100
AR Path="/5ED6119E/5F32754C" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F32754C" Ref="#PWR0309"  Part="1" 
F 0 "#PWR0309" H 3250 5850 50  0001 C CNN
F 1 "GNDA" H 3255 5927 50  0000 C CNN
F 2 "" H 3250 6100 50  0001 C CNN
F 3 "" H 3250 6100 50  0001 C CNN
	1    3250 6100
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR?
U 1 1 5F327576
P 9550 3650
AR Path="/5ED6119E/5F327576" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F327576" Ref="#PWR0321"  Part="1" 
F 0 "#PWR0321" H 9550 3400 50  0001 C CNN
F 1 "GNDA" H 9555 3477 50  0000 C CNN
F 2 "" H 9550 3650 50  0001 C CNN
F 3 "" H 9550 3650 50  0001 C CNN
	1    9550 3650
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F327570
P 9550 3950
AR Path="/5ED6119E/5F327570" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F327570" Ref="#PWR0322"  Part="1" 
F 0 "#PWR0322" H 9550 3700 50  0001 C CNN
F 1 "GND" H 9555 3777 50  0000 C CNN
F 2 "" H 9550 3950 50  0001 C CNN
F 3 "" H 9550 3950 50  0001 C CNN
	1    9550 3950
	1    0    0    -1  
$EndComp
Wire Wire Line
	9550 3650 9550 3950
Text Notes 9600 3850 0    50   ~ 0
Since the Black Pill doesn't have \nseperate analog ground and power,\nwe're merging the two ground planes.
Wire Wire Line
	3950 3900 3950 4100
Wire Wire Line
	3950 4700 3950 4900
Text HLabel 4050 4700 2    50   Input ~ 0
TX_Q
Wire Wire Line
	4050 4700 3950 4700
Text HLabel 4100 3900 2    50   Input ~ 0
TX_I
Wire Wire Line
	4100 3900 3950 3900
Text HLabel 5900 5500 2    50   Output ~ 0
RX_I
Text HLabel 5700 6850 2    50   Output ~ 0
RX_Q
Text Label 4100 1700 0    50   ~ 0
CLK2
$Comp
L Connector:Conn_01x07_Female J301
U 1 1 5F4EA304
P 5150 1450
F 0 "J301" H 5178 1476 50  0000 L CNN
F 1 "Conn_01x07_Female" H 5178 1385 50  0000 L CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x07_Pitch2.54mm" H 5150 1450 50  0001 C CNN
F 3 "~" H 5150 1450 50  0001 C CNN
	1    5150 1450
	1    0    0    -1  
$EndComp
Text Notes 4650 1050 0    50   ~ 0
Header for Si5351 breakout
Text Label 4950 1150 2    50   ~ 0
CLK0
Text Label 4950 1250 2    50   ~ 0
CLK1
Text Label 4950 1350 2    50   ~ 0
CLK2
$Comp
L power:+3.3V #PWR0319
U 1 1 5F4ECFB4
P 4950 1750
F 0 "#PWR0319" H 4950 1600 50  0001 C CNN
F 1 "+3.3V" V 4965 1878 50  0000 L CNN
F 2 "" H 4950 1750 50  0001 C CNN
F 3 "" H 4950 1750 50  0001 C CNN
	1    4950 1750
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR0318
U 1 1 5F50CBB2
P 4950 1650
F 0 "#PWR0318" H 4950 1400 50  0001 C CNN
F 1 "GND" V 4955 1522 50  0000 R CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x07_Pitch2.54mm" H 4950 1650 50  0001 C CNN
F 3 "https://learn.adafruit.com/downloads/pdf/adafruit-si5351-clock-generator-breakout.pdf" H 4950 1650 50  0001 C CNN
	1    4950 1650
	0    1    1    0   
$EndComp
Text HLabel 4950 1450 0    50   3State ~ 0
SCL
Text HLabel 4950 1550 0    50   3State ~ 0
SDA
$Comp
L power:+12VA #PWR0316
U 1 1 5F4CF3E2
P 8350 3550
F 0 "#PWR0316" H 8350 3400 50  0001 C CNN
F 1 "+12VA" H 8365 3723 50  0000 C CNN
F 2 "" H 8350 3550 50  0001 C CNN
F 3 "" H 8350 3550 50  0001 C CNN
	1    8350 3550
	1    0    0    -1  
$EndComp
Connection ~ 8350 3550
Wire Wire Line
	950  5100 950  5250
$Comp
L Connector:TestPoint TP310
U 1 1 5F870899
P 8350 3750
F 0 "TP310" V 8545 3822 50  0000 C CNN
F 1 "TestPoint" V 8454 3822 50  0000 C CNN
F 2 "Measurement_Points:Measurement_Point_Round-SMD-Pad_Small" H 8550 3750 50  0001 C CNN
F 3 "~" H 8550 3750 50  0001 C CNN
	1    8350 3750
	0    -1   -1   0   
$EndComp
Connection ~ 8350 3750
Wire Wire Line
	5600 6850 5600 7150
Wire Wire Line
	2350 5300 2350 7050
Connection ~ 5600 6850
Connection ~ 5600 7150
Wire Wire Line
	5600 7150 5600 7400
Wire Wire Line
	2250 5100 2450 5100
Wire Wire Line
	2250 5000 2850 5000
Wire Wire Line
	2850 5000 2850 5400
$Comp
L Connector:TestPoint TP306
U 1 1 5F84DFB0
P 3450 2500
F 0 "TP306" H 3392 2526 50  0000 R CNN
F 1 "TestPoint" H 3392 2617 50  0000 R CNN
F 2 "Measurement_Points:Measurement_Point_Round-SMD-Pad_Small" H 3650 2500 50  0001 C CNN
F 3 "~" H 3650 2500 50  0001 C CNN
	1    3450 2500
	-1   0    0    1   
$EndComp
Text HLabel 2750 1300 2    50   Output ~ 0
CLK_MEASURE
Text HLabel 2600 2000 2    50   Input ~ 0
TX_BIAS
Wire Wire Line
	3350 1900 3450 1900
$Comp
L 74xx:74LS00 U?
U 1 1 5F32758B
P 3050 1800
AR Path="/5F32758B" Ref="U?"  Part="1" 
AR Path="/5ED6119E/5F32758B" Ref="U?"  Part="1" 
AR Path="/5F5D026F/5F32758B" Ref="U302"  Part="1" 
F 0 "U302" H 3050 2125 50  0000 C CNN
F 1 "74ACT00" H 3050 2034 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 3050 1800 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 3050 1800 50  0001 C CNN
	1    3050 1800
	-1   0    0    -1  
$EndComp
Text HLabel 1450 1900 0    50   Output ~ 0
Tx
$Comp
L 74xx:74LS00 U?
U 2 1 5F327304
P 2300 1900
AR Path="/5F327304" Ref="U?"  Part="2" 
AR Path="/5ED6119E/5F327304" Ref="U?"  Part="2" 
AR Path="/5F5D026F/5F327304" Ref="U302"  Part="2" 
F 0 "U302" H 2300 2225 50  0000 C CNN
F 1 "74ACT00" H 2300 2134 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 2300 1900 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 2300 1900 50  0001 C CNN
	2    2300 1900
	-1   0    0    -1  
$EndComp
Wire Wire Line
	5600 6850 5350 6850
$Comp
L Amplifier_Operational:LM4562 U?
U 1 1 5F327310
P 4200 5800
AR Path="/5ED6119E/5F327310" Ref="U?"  Part="1" 
AR Path="/5F5D026F/5F327310" Ref="U305"  Part="1" 
F 0 "U305" H 4200 6167 50  0000 C CNN
F 1 "LM4562" H 4200 6076 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm" H 4200 5800 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm4562.pdf" H 4200 5800 50  0001 C CNN
	1    4200 5800
	1    0    0    -1  
$EndComp
Wire Wire Line
	5500 7150 5600 7150
Wire Wire Line
	4750 7150 5200 7150
Connection ~ 4750 7150
Wire Wire Line
	4750 7150 4750 7400
$Comp
L Device:R_US R?
U 1 1 5F7FB33D
P 5550 5800
AR Path="/5ED6119E/5F7FB33D" Ref="R?"  Part="1" 
AR Path="/5F5D026F/5F7FB33D" Ref="R307"  Part="1" 
F 0 "R307" V 5345 5800 50  0000 C CNN
F 1 "82k" V 5436 5800 50  0000 C CNN
F 2 "Resistors_SMD:R_0805" V 5590 5790 50  0001 C CNN
F 3 "~" H 5550 5800 50  0001 C CNN
	1    5550 5800
	0    1    1    0   
$EndComp
$Comp
L Device:C C?
U 1 1 5F7FB347
P 5400 6050
AR Path="/5ED6119E/5F7FB347" Ref="C?"  Part="1" 
AR Path="/5F5D026F/5F7FB347" Ref="C308"  Part="1" 
F 0 "C308" V 5148 6050 50  0000 C CNN
F 1 "470p" V 5239 6050 50  0000 C CNN
F 2 "Capacitors_SMD:C_0805" H 5438 5900 50  0001 C CNN
F 3 "~" H 5400 6050 50  0001 C CNN
	1    5400 6050
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5250 6050 4950 6050
Wire Wire Line
	5550 6050 5800 6050
Wire Wire Line
	5900 5500 5800 5500
Wire Wire Line
	5800 5500 5800 5800
Connection ~ 5800 5500
Connection ~ 5800 5800
Wire Wire Line
	5800 5800 5800 6050
Wire Wire Line
	5800 5500 5550 5500
$Comp
L Amplifier_Operational:LM4562 U?
U 2 1 5F7FB369
P 5250 5500
AR Path="/5ED6119E/5F7FB369" Ref="U?"  Part="1" 
AR Path="/5F5D026F/5F7FB369" Ref="U305"  Part="2" 
F 0 "U305" H 5250 5867 50  0000 C CNN
F 1 "LM4562" H 5250 5776 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm" H 5250 5500 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm4562.pdf" H 5250 5500 50  0001 C CNN
	2    5250 5500
	1    0    0    -1  
$EndComp
Wire Wire Line
	5700 5800 5800 5800
Wire Wire Line
	4950 5800 5400 5800
Connection ~ 4950 5800
Wire Wire Line
	4950 5800 4950 6050
Wire Wire Line
	4950 5600 4950 5800
$Comp
L Device:R_US R?
U 1 1 5F9F79EF
P 4650 5800
AR Path="/5ED6119E/5F9F79EF" Ref="R?"  Part="1" 
AR Path="/5F5D026F/5F9F79EF" Ref="R305"  Part="1" 
F 0 "R305" V 4445 5800 50  0000 C CNN
F 1 "100" V 4536 5800 50  0000 C CNN
F 2 "Resistors_SMD:R_0805" V 4690 5790 50  0001 C CNN
F 3 "~" H 4650 5800 50  0001 C CNN
	1    4650 5800
	0    -1   -1   0   
$EndComp
Wire Wire Line
	4800 5800 4950 5800
Wire Wire Line
	4750 6950 4750 7150
$Comp
L Device:R_US R?
U 1 1 5FA2BB48
P 4350 7150
AR Path="/5ED6119E/5FA2BB48" Ref="R?"  Part="1" 
AR Path="/5F5D026F/5FA2BB48" Ref="R304"  Part="1" 
F 0 "R304" V 4145 7150 50  0000 C CNN
F 1 "100" V 4236 7150 50  0000 C CNN
F 2 "Resistors_SMD:R_0805" V 4390 7140 50  0001 C CNN
F 3 "~" H 4350 7150 50  0001 C CNN
	1    4350 7150
	0    -1   -1   0   
$EndComp
Wire Wire Line
	4500 7150 4750 7150
$Comp
L power:+3.3V #PWR0301
U 1 1 5FB0AB73
P 950 4750
F 0 "#PWR0301" H 950 4600 50  0001 C CNN
F 1 "+3.3V" H 965 4923 50  0000 C CNN
F 2 "" H 950 4750 50  0001 C CNN
F 3 "" H 950 4750 50  0001 C CNN
	1    950  4750
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR0305
U 1 1 5FB905BD
P 1650 3650
F 0 "#PWR0305" H 1650 3500 50  0001 C CNN
F 1 "+3.3V" H 1665 3823 50  0000 C CNN
F 2 "" H 1650 3650 50  0001 C CNN
F 3 "" H 1650 3650 50  0001 C CNN
	1    1650 3650
	1    0    0    -1  
$EndComp
Wire Wire Line
	1650 3650 1650 3800
$Comp
L Device:D_Schottky_x2_Serial_AKC D?
U 1 1 5F4F62EE
P 1550 1350
AR Path="/5ED6119E/5F4F62EE" Ref="D?"  Part="1" 
AR Path="/5F5D026F/5F4F62EE" Ref="D301"  Part="1" 
F 0 "D301" H 1550 1567 50  0000 C CNN
F 1 "BAT54S" H 1550 1476 50  0000 C CNN
F 2 "TO_SOT_Packages_SMD:SOT-23" H 1550 1350 50  0001 C CNN
F 3 "~" H 1550 1350 50  0001 C CNN
	1    1550 1350
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F4F62F4
P 1100 1500
AR Path="/5ED6119E/5F4F62F4" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F4F62F4" Ref="#PWR0304"  Part="1" 
F 0 "#PWR0304" H 1100 1250 50  0001 C CNN
F 1 "GND" H 1105 1327 50  0000 C CNN
F 2 "" H 1100 1500 50  0001 C CNN
F 3 "" H 1100 1500 50  0001 C CNN
	1    1100 1500
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3V #PWR?
U 1 1 5F4F62FA
P 1100 1200
AR Path="/5ED6119E/5F4F62FA" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F4F62FA" Ref="#PWR0303"  Part="1" 
F 0 "#PWR0303" H 1100 1050 50  0001 C CNN
F 1 "+3.3V" H 1115 1373 50  0000 C CNN
F 2 "" H 1100 1200 50  0001 C CNN
F 3 "" H 1100 1200 50  0001 C CNN
	1    1100 1200
	1    0    0    -1  
$EndComp
Text Notes 4200 2750 0    50   ~ 0
CLK0\n\nCLK1\n\nSwitch
Wire Notes Line
	4550 2450 4550 2350
Wire Notes Line
	4550 2350 4650 2350
Wire Notes Line
	4650 2350 4650 2450
Wire Notes Line
	4650 2450 4750 2450
Wire Notes Line
	4750 2450 4750 2350
Wire Notes Line
	4750 2350 4850 2350
Wire Notes Line
	4850 2350 4850 2450
Wire Notes Line
	4850 2450 4950 2450
Wire Notes Line
	4950 2450 4950 2350
Wire Notes Line
	4950 2350 5050 2350
Wire Notes Line
	4550 2600 4550 2500
Wire Notes Line
	4550 2500 4750 2500
Wire Notes Line
	4750 2500 4750 2600
Wire Notes Line
	4750 2600 4950 2600
Wire Notes Line
	4950 2600 4950 2500
Wire Notes Line
	4950 2500 5150 2500
Wire Notes Line
	5150 2500 5150 2600
Wire Notes Line
	5150 2600 5350 2600
Wire Notes Line
	5050 2350 5050 2450
Wire Notes Line
	5050 2450 5150 2450
Wire Notes Line
	5150 2450 5150 2350
Wire Notes Line
	5150 2350 5250 2350
Wire Notes Line
	5250 2350 5250 2450
Wire Notes Line
	5250 2450 5350 2450
Text Notes 4550 2750 0    50   ~ 0
3
Text Notes 4650 2750 0    50   ~ 0
2
Text Notes 4750 2750 0    50   ~ 0
1
Text Notes 4850 2750 0    50   ~ 0
0
Text Notes 4950 2750 0    50   ~ 0
3
Text Notes 5050 2750 0    50   ~ 0
2
Text Notes 5150 2750 0    50   ~ 0
1
Text Notes 5250 2750 0    50   ~ 0
0
Text Notes 4200 3050 0    50   ~ 0
This method is easier to implement\nin the si5351 because it doesn't \nrequire any phase offset
Wire Wire Line
	2750 1300 2700 1300
Wire Wire Line
	2700 1300 2700 1800
Wire Wire Line
	2700 1800 2750 1800
Wire Wire Line
	2600 1800 2700 1800
Connection ~ 2700 1800
Wire Wire Line
	1450 1900 1550 1900
Wire Wire Line
	1550 1550 1550 1900
Connection ~ 1550 1900
Wire Wire Line
	1550 1900 1600 1900
$Comp
L Device:R_US R?
U 1 1 5F53372C
P 1750 2050
AR Path="/5ED6119E/5F53372C" Ref="R?"  Part="1" 
AR Path="/5F5D026F/5F53372C" Ref="R303"  Part="1" 
F 0 "R303" H 1682 2004 50  0000 R CNN
F 1 "10k" H 1682 2095 50  0000 R CNN
F 2 "Resistors_SMD:R_0805" V 1790 2040 50  0001 C CNN
F 3 "~" H 1750 2050 50  0001 C CNN
	1    1750 2050
	0    -1   -1   0   
$EndComp
$Comp
L Device:C C?
U 1 1 5F6544AE
P 1750 1900
AR Path="/5ED6119E/5F6544AE" Ref="C?"  Part="1" 
AR Path="/5F5D026F/5F6544AE" Ref="C301"  Part="1" 
AR Path="/5F6544AE" Ref="C?"  Part="1" 
F 0 "C301" V 1498 1900 50  0000 C CNN
F 1 "10n" V 1589 1900 50  0000 C CNN
F 2 "Capacitors_SMD:C_0805" H 1788 1750 50  0001 C CNN
F 3 "~" H 1750 1900 50  0001 C CNN
	1    1750 1900
	0    1    1    0   
$EndComp
Wire Wire Line
	1550 1900 1550 2050
Wire Wire Line
	1550 2050 1600 2050
Wire Wire Line
	1900 2050 1950 2050
Wire Wire Line
	1950 2050 1950 1900
Wire Wire Line
	1950 1900 2000 1900
Wire Wire Line
	1950 1900 1900 1900
Connection ~ 1950 1900
$Comp
L Device:R_POT_TRIM_US RV301
U 1 1 5F54E1A8
P 1100 1350
F 0 "RV301" H 1032 1396 50  0000 R CNN
F 1 "1k" H 1032 1305 50  0000 R CNN
F 2 "Potentiometers:Potentiometer_Trimmer_Bourns_3214W" H 1100 1350 50  0001 C CNN
F 3 "https://www.bourns.com/docs/Product-Datasheets/TC33.pdf" H 1100 1350 50  0001 C CNN
	1    1100 1350
	1    0    0    -1  
$EndComp
Wire Wire Line
	3450 2500 3450 1900
Wire Wire Line
	2250 4600 3950 4600
Wire Wire Line
	2250 4800 3250 4800
Wire Wire Line
	2250 4700 3200 4700
Wire Wire Line
	3200 4700 3200 4000
Wire Wire Line
	2250 4500 3000 4500
Wire Wire Line
	3000 4500 3000 3800
Wire Wire Line
	3000 3800 3950 3800
Wire Wire Line
	3450 5700 3900 5700
Wire Wire Line
	3000 5400 4950 5400
Wire Wire Line
	3900 5900 3900 6150
Wire Wire Line
	3900 6150 4500 6150
Wire Wire Line
	4500 6150 4500 5800
Connection ~ 4500 5800
$Comp
L Amplifier_Operational:LM4562 U?
U 1 1 5F5E280C
P 3900 7150
AR Path="/5ED6119E/5F5E280C" Ref="U?"  Part="1" 
AR Path="/5F5D026F/5F5E280C" Ref="U304"  Part="1" 
F 0 "U304" H 3900 7517 50  0000 C CNN
F 1 "LM4562" H 3900 7426 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm" H 3900 7150 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/snas326k/snas326k.pdf" H 3900 7150 50  0001 C CNN
	1    3900 7150
	1    0    0    -1  
$EndComp
Wire Wire Line
	3250 7050 3600 7050
Wire Wire Line
	3600 7250 3600 7550
Wire Wire Line
	3600 7550 4200 7550
Wire Wire Line
	4200 7550 4200 7150
Connection ~ 4200 7150
$Comp
L Amplifier_Operational:LM4562 U?
U 2 1 5F5F1B99
P 5050 6850
AR Path="/5ED6119E/5F5F1B99" Ref="U?"  Part="1" 
AR Path="/5F5D026F/5F5F1B99" Ref="U304"  Part="2" 
F 0 "U304" H 5050 7217 50  0000 C CNN
F 1 "LM4562" H 5050 7126 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm" H 5050 6850 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/snas326k/snas326k.pdf" H 5050 6850 50  0001 C CNN
	2    5050 6850
	1    0    0    -1  
$EndComp
Wire Wire Line
	2800 6750 4750 6750
$Comp
L Amplifier_Operational:LM4562 U?
U 3 1 5F5FC118
P 7650 3900
AR Path="/5ED6119E/5F5FC118" Ref="U?"  Part="1" 
AR Path="/5F5D026F/5F5FC118" Ref="U304"  Part="3" 
F 0 "U304" H 7650 4267 50  0000 C CNN
F 1 "LM4562" H 7650 4176 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm" H 7650 3900 50  0001 C CNN
F 3 "https://www.ti.com/lit/ds/snas326k/snas326k.pdf" H 7650 3900 50  0001 C CNN
	3    7650 3900
	1    0    0    -1  
$EndComp
$Comp
L power:+12VA #PWR0314
U 1 1 5F5FE9D5
P 7550 3600
F 0 "#PWR0314" H 7550 3450 50  0001 C CNN
F 1 "+12VA" H 7565 3773 50  0000 C CNN
F 2 "" H 7550 3600 50  0001 C CNN
F 3 "" H 7550 3600 50  0001 C CNN
	1    7550 3600
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F5FEDEE
P 7550 4200
AR Path="/5ED6119E/5F5FEDEE" Ref="#PWR?"  Part="1" 
AR Path="/5F5D026F/5F5FEDEE" Ref="#PWR0315"  Part="1" 
F 0 "#PWR0315" H 7550 3950 50  0001 C CNN
F 1 "GND" H 7555 4027 50  0000 C CNN
F 2 "" H 7550 4200 50  0001 C CNN
F 3 "" H 7550 4200 50  0001 C CNN
	1    7550 4200
	1    0    0    -1  
$EndComp
Wire Wire Line
	1300 2500 3450 2500
Wire Wire Line
	1300 2500 1300 4600
Connection ~ 3450 2500
Wire Wire Line
	2850 5400 3000 5400
Text Label 1900 2500 0    50   ~ 0
SYNTH
Wire Wire Line
	3350 1700 4400 1700
Wire Wire Line
	950  5100 1450 5100
Wire Wire Line
	2750 5200 2750 5700
Wire Wire Line
	2750 5700 3450 5700
Wire Wire Line
	2450 6750 2800 6750
Wire Wire Line
	2450 5100 2450 6750
Wire Wire Line
	2350 7050 3250 7050
Wire Wire Line
	2250 5300 2350 5300
NoConn ~ 1850 1350
NoConn ~ 3800 7100
$EndSCHEMATC