PCB

EESchema Schematic File Version 4
EELAYER 30 0
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$Descr A 11000 8500
encoding utf-8
Sheet 15 17
Title "RFIDr_Open_TRX"
Date "2020-05-21"
Rev "A"
Comp "Superlative Semiconductor LLC"
Comment1 "Copyright 2021 Superlative Semiconductor LLC."
Comment2 "Licensed under CERN-OHL-P v2 or later."
Comment3 "This source provided WITHOUT ANY EXPRESS OR IMPLIED WARRANTY."
Comment4 "Author: E. Keehr"
$EndDescr
$Comp
L RFIDr_Open_Lib:CX3225GB_36MHz_XTAL U26
U 1 1 5E3186EA
P 2100 3650
F 0 "U26" H 2325 3650 60  0000 C CNN
F 1 "CX3225GB_36MHz_XTAL" H 2350 3250 60  0000 C CNN
F 2 "RFIDr_Open:CX3225" H 2300 3350 60  0000 C CNN
F 3 "" H 2100 3650 60  0000 C CNN
	1    2100 3650
	0    1    1    0   
$EndComp
$Comp
L RFIDr_Open_Lib:SG210STF_XO U25
U 1 1 5E3186F1
P 3025 5600
F 0 "U25" H 3400 5475 60  0000 C CNN
F 1 "SG210STF_XO" H 3425 5275 60  0000 C CNN
F 2 "RFIDr_Open:SG210STF" H 3425 5650 30  0000 C CNN
F 3 "" H 3025 5600 60  0000 C CNN
	1    3025 5600
	1    0    0    -1  
$EndComp
Text HLabel 8025 3900 2    60   Input ~ 0
CTRLR_COPI_CAP0_RDIO
Text HLabel 8025 4000 2    60   Output ~ 0
CTRLR_CIPO
Text HLabel 8025 4100 2    60   Input ~ 0
CTRLR_PCLK
Text Label 6900 4100 0    60   ~ 0
CTRLR_PCLK
Text Label 7925 3900 2    60   ~ 0
CTRLR_COPI_CAP0_RDIO
Text HLabel 5675 4675 3    60   Input ~ 0
RST_RDIO_P
Text HLabel 5775 4700 3    60   Output ~ 0
CLK_OUT
Text HLabel 6175 4700 3    60   Output ~ 0
Q_OUT
Text HLabel 6275 4700 3    60   Output ~ 0
I_OUT
Text HLabel 6075 4700 3    60   Input ~ 0
I_IN
Text HLabel 5975 4700 3    60   Input ~ 0
Q_IN
$Comp
L Device:C_Small C105
U 1 1 5E318703
P 6575 5125
F 0 "C105" H 6585 5195 50  0000 L CNN
F 1 "1u" H 6585 5045 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 6475 5150 30  0000 C CNN
F 3 "" H 6575 5125 60  0000 C CNN
	1    6575 5125
	-1   0    0    1   
$EndComp
$Comp
L power:VAA #PWR0212
U 1 1 5E31870A
P 7200 4650
F 0 "#PWR0212" H 7200 4500 50  0001 C CNN
F 1 "VAA" H 7200 4800 50  0000 C CNN
F 2 "" H 7200 4650 60  0000 C CNN
F 3 "" H 7200 4650 60  0000 C CNN
	1    7200 4650
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR0213
U 1 1 5E318710
P 6575 5300
F 0 "#PWR0213" H 6575 5050 50  0001 C CNN
F 1 "GNDA" H 6575 5150 50  0000 C CNN
F 2 "" H 6575 5300 60  0000 C CNN
F 3 "" H 6575 5300 60  0000 C CNN
	1    6575 5300
	1    0    0    -1  
$EndComp
$Comp
L Device:R R82
U 1 1 5E318716
P 6975 4800
F 0 "R82" V 7055 4800 50  0000 C CNN
F 1 "0" V 6975 4800 50  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 6875 4775 30  0000 C CNN
F 3 "" H 6975 4800 30  0000 C CNN
	1    6975 4800
	0    -1   -1   0   
$EndComp
$Comp
L power:GNDA #PWR0214
U 1 1 5E31871D
P 5100 4000
F 0 "#PWR0214" H 5100 3750 50  0001 C CNN
F 1 "GNDA" V 5100 3775 50  0000 C CNN
F 2 "" H 5100 4000 60  0000 C CNN
F 3 "" H 5100 4000 60  0000 C CNN
	1    5100 4000
	0    1    1    0   
$EndComp
$Comp
L Device:R R80
U 1 1 5E318723
P 5875 5325
F 0 "R80" V 5955 5325 50  0000 C CNN
F 1 "0" V 5875 5325 50  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 5775 5300 30  0000 C CNN
F 3 "" H 5875 5325 30  0000 C CNN
	1    5875 5325
	-1   0    0    1   
$EndComp
$Comp
L power:GNDA #PWR0215
U 1 1 5E31872A
P 5875 5700
F 0 "#PWR0215" H 5875 5450 50  0001 C CNN
F 1 "GNDA" H 5900 5550 50  0000 C CNN
F 2 "" H 5875 5700 60  0000 C CNN
F 3 "" H 5875 5700 60  0000 C CNN
	1    5875 5700
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR0216
U 1 1 5E318730
P 3875 3800
F 0 "#PWR0216" H 3875 3550 50  0001 C CNN
F 1 "GNDA" V 3875 3575 50  0000 C CNN
F 2 "" H 3875 3800 60  0000 C CNN
F 3 "" H 3875 3800 60  0000 C CNN
	1    3875 3800
	0    1    1    0   
$EndComp
$Comp
L power:GNDA #PWR0217
U 1 1 5E318736
P 1900 3350
F 0 "#PWR0217" H 1900 3100 50  0001 C CNN
F 1 "GNDA" V 1900 3125 50  0000 C CNN
F 2 "" H 1900 3350 60  0000 C CNN
F 3 "" H 1900 3350 60  0000 C CNN
	1    1900 3350
	-1   0    0    1   
$EndComp
$Comp
L power:GNDA #PWR0218
U 1 1 5E31873C
P 2000 4325
F 0 "#PWR0218" H 2000 4075 50  0001 C CNN
F 1 "GNDA" H 2000 4175 50  0000 C CNN
F 2 "" H 2000 4325 60  0000 C CNN
F 3 "" H 2000 4325 60  0000 C CNN
	1    2000 4325
	1    0    0    -1  
$EndComp
$Comp
L Device:R R73
U 1 1 5E318742
P 2300 4600
F 0 "R73" V 2380 4600 50  0000 C CNN
F 1 "0" V 2300 4600 50  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 2200 4575 30  0000 C CNN
F 3 "" H 2300 4600 30  0000 C CNN
	1    2300 4600
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R74
U 1 1 5E318749
P 4650 5800
F 0 "R74" V 4730 5800 50  0000 C CNN
F 1 "DNI" V 4650 5800 50  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 4550 5775 30  0000 C CNN
F 3 "" H 4650 5800 30  0000 C CNN
	1    4650 5800
	0    -1   -1   0   
$EndComp
$Comp
L power:GNDA #PWR0219
U 1 1 5E318750
P 2750 5800
F 0 "#PWR0219" H 2750 5550 50  0001 C CNN
F 1 "GNDA" V 2750 5575 50  0000 C CNN
F 2 "" H 2750 5800 60  0000 C CNN
F 3 "" H 2750 5800 60  0000 C CNN
	1    2750 5800
	0    1    1    0   
$EndComp
Text HLabel 2050 5700 0    60   Input ~ 0
XO_ENABLE
$Comp
L Device:C_Small C93
U 1 1 5E318757
P 2700 4350
F 0 "C93" H 2710 4420 50  0000 L CNN
F 1 "12p" H 2710 4270 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 2600 4375 30  0000 C CNN
F 3 "" H 2700 4350 60  0000 C CNN
	1    2700 4350
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR0231
U 1 1 5E31875E
P 2700 4200
F 0 "#PWR0231" H 2700 3950 50  0001 C CNN
F 1 "GNDA" H 2700 4050 50  0000 C CNN
F 2 "" H 2700 4200 60  0000 C CNN
F 3 "" H 2700 4200 60  0000 C CNN
	1    2700 4200
	-1   0    0    1   
$EndComp
$Comp
L Device:R R69
U 1 1 5E318764
P 2350 3350
F 0 "R69" V 2430 3350 50  0000 C CNN
F 1 "0" V 2350 3350 50  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 2250 3325 30  0000 C CNN
F 3 "" H 2350 3350 30  0000 C CNN
	1    2350 3350
	0    -1   -1   0   
$EndComp
$Comp
L Device:C_Small C85
U 1 1 5E31876B
P 4275 5175
F 0 "C85" H 4285 5245 50  0000 L CNN
F 1 "1u" H 4285 5095 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 4175 5150 30  0000 C CNN
F 3 "" H 4275 5175 60  0000 C CNN
	1    4275 5175
	-1   0    0    1   
$EndComp
$Comp
L power:GNDA #PWR0233
U 1 1 5E318772
P 4275 5350
F 0 "#PWR0233" H 4275 5100 50  0001 C CNN
F 1 "GNDA" H 4275 5200 50  0000 C CNN
F 2 "" H 4275 5350 60  0000 C CNN
F 3 "" H 4275 5350 60  0000 C CNN
	1    4275 5350
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C89
U 1 1 5E318778
P 4200 3800
F 0 "C89" V 4250 3925 50  0000 L CNN
F 1 "100n" V 4250 3575 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 4100 3825 30  0000 C CNN
F 3 "" H 4200 3800 60  0000 C CNN
	1    4200 3800
	0    1    1    0   
$EndComp
$Comp
L RFIDr_Open_Lib:LP5951MF U40
U 1 1 5E31877F
P 2450 4950
F 0 "U40" H 2662 5137 60  0000 C CNN
F 1 "LP5951MF" H 2662 5031 60  0000 C CNN
F 2 "RFIDr_Open:SC-70-5" H 2450 4950 60  0001 C CNN
F 3 "" H 2450 4950 60  0001 C CNN
	1    2450 4950
	1    0    0    -1  
$EndComp
$Comp
L power:VAA #PWR0235
U 1 1 5E318786
P 1550 5025
F 0 "#PWR0235" H 1550 4875 50  0001 C CNN
F 1 "VAA" V 1550 5200 50  0000 C CNN
F 2 "" H 1550 5025 60  0000 C CNN
F 3 "" H 1550 5025 60  0000 C CNN
	1    1550 5025
	0    -1   -1   0   
$EndComp
$Comp
L power:GNDA #PWR0237
U 1 1 5E31878C
P 2300 5125
F 0 "#PWR0237" H 2300 4875 50  0001 C CNN
F 1 "GNDA" V 2300 4900 50  0000 C CNN
F 2 "" H 2300 5125 60  0000 C CNN
F 3 "" H 2300 5125 60  0000 C CNN
	1    2300 5125
	0    1    1    0   
$EndComp
$Comp
L power:VAA #PWR0443
U 1 1 5E318792
P 2300 5225
F 0 "#PWR0443" H 2300 5075 50  0001 C CNN
F 1 "VAA" V 2300 5400 50  0000 C CNN
F 2 "" H 2300 5225 60  0000 C CNN
F 3 "" H 2300 5225 60  0000 C CNN
	1    2300 5225
	0    -1   -1   0   
$EndComp
Text Label 3250 5025 0    60   ~ 0
V1P8
$Comp
L Device:C_Small C111
U 1 1 5E3187CF
P 1700 5200
F 0 "C111" H 1710 5270 50  0000 L CNN
F 1 "1u" H 1710 5120 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 1550 5075 30  0000 C CNN
F 3 "" H 1700 5200 60  0000 C CNN
	1    1700 5200
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR0444
U 1 1 5E3187D6
P 1700 5350
F 0 "#PWR0444" H 1700 5100 50  0001 C CNN
F 1 "GNDA" H 1700 5200 50  0000 C CNN
F 2 "" H 1700 5350 60  0000 C CNN
F 3 "" H 1700 5350 60  0000 C CNN
	1    1700 5350
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C127
U 1 1 5E3187DF
P 2250 5975
F 0 "C127" V 2200 6050 50  0000 L CNN
F 1 "DNI" V 2200 5750 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 2375 6150 30  0000 C CNN
F 3 "" H 2250 5975 60  0000 C CNN
	1    2250 5975
	-1   0    0    1   
$EndComp
$Comp
L power:GNDA #PWR0445
U 1 1 5E3187E6
P 2250 6225
F 0 "#PWR0445" H 2250 5975 50  0001 C CNN
F 1 "GNDA" H 2250 6075 50  0000 C CNN
F 2 "" H 2250 6225 60  0000 C CNN
F 3 "" H 2250 6225 60  0000 C CNN
	1    2250 6225
	1    0    0    -1  
$EndComp
NoConn ~ 6875 3600
NoConn ~ 6875 3700
Text HLabel 8025 3800 2    60   Input ~ 0
CTRLR_NPS_RDIO
Text HLabel 8025 3500 2    60   Output ~ 0
DIO2
Text HLabel 8025 3400 2    60   Output ~ 0
DIO3
$Comp
L power:GNDA #PWR0446
U 1 1 5E3192B7
P 5300 2325
F 0 "#PWR0446" H 5300 2075 50  0001 C CNN
F 1 "GNDA" V 5300 2100 50  0000 C CNN
F 2 "" H 5300 2325 60  0000 C CNN
F 3 "" H 5300 2325 60  0000 C CNN
	1    5300 2325
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C86
U 1 1 5E3192BD
P 2700 3650
F 0 "C86" H 2710 3720 50  0000 L CNN
F 1 "12p" H 2710 3570 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 2600 3675 30  0000 C CNN
F 3 "" H 2700 3650 60  0000 C CNN
	1    2700 3650
	-1   0    0    1   
$EndComp
$Comp
L power:GNDA #PWR0447
U 1 1 5E3192C4
P 2700 3800
F 0 "#PWR0447" H 2700 3550 50  0001 C CNN
F 1 "GNDA" H 2700 3650 50  0000 C CNN
F 2 "" H 2700 3800 60  0000 C CNN
F 3 "" H 2700 3800 60  0000 C CNN
	1    2700 3800
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C92
U 1 1 5E3192CA
P 4225 3600
F 0 "C92" V 4275 3675 50  0000 L CNN
F 1 "100n" V 4275 3350 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 4125 3600 30  0000 C CNN
F 3 "" H 4225 3600 60  0000 C CNN
	1    4225 3600
	0    1    1    0   
$EndComp
$Comp
L Device:C_Small C91
U 1 1 5E3192D1
P 4225 3400
F 0 "C91" V 4175 3175 50  0000 L CNN
F 1 "1u" V 4175 3500 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 4325 3375 30  0000 C CNN
F 3 "" H 4225 3400 60  0000 C CNN
	1    4225 3400
	0    -1   -1   0   
$EndComp
$Comp
L Device:C_Small C90
U 1 1 5E3192D8
P 4225 2750
F 0 "C90" V 4275 2825 50  0000 L CNN
F 1 "100n" V 4275 2525 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 4125 2700 30  0000 C CNN
F 3 "" H 4225 2750 60  0000 C CNN
	1    4225 2750
	0    1    1    0   
$EndComp
$Comp
L Device:R R75
U 1 1 5E3192DF
P 4525 3050
F 0 "R75" V 4475 3275 50  0000 C CNN
F 1 "0" V 4525 3050 50  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 4600 3125 30  0000 C CNN
F 3 "" H 4525 3050 30  0000 C CNN
	1    4525 3050
	0    -1   -1   0   
$EndComp
$Comp
L power:VAA #PWR0448
U 1 1 5E3192E6
P 4225 3050
F 0 "#PWR0448" H 4225 2900 50  0001 C CNN
F 1 "VAA" V 4225 3225 50  0000 C CNN
F 2 "" H 4225 3050 60  0000 C CNN
F 3 "" H 4225 3050 60  0000 C CNN
	1    4225 3050
	0    -1   -1   0   
$EndComp
$Comp
L Device:C_Small C95
U 1 1 5E3192EC
P 5300 2125
F 0 "C95" H 5310 2195 50  0000 L CNN
F 1 "1u" H 5310 2045 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 5200 2100 30  0000 C CNN
F 3 "" H 5300 2125 60  0000 C CNN
	1    5300 2125
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C103
U 1 1 5E3192F3
P 6675 2825
F 0 "C103" H 6685 2895 50  0000 L CNN
F 1 "100n" H 6685 2745 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 6575 2800 30  0000 C CNN
F 3 "" H 6675 2825 60  0000 C CNN
	1    6675 2825
	0    -1   -1   0   
$EndComp
Text Label 5875 2150 3    60   ~ 0
RF_OP
Text Label 5975 2425 1    60   ~ 0
RF_ON
$Comp
L power:GNDA #PWR0449
U 1 1 5E3192FC
P 6925 2825
F 0 "#PWR0449" H 6925 2575 50  0001 C CNN
F 1 "GNDA" V 6925 2600 50  0000 C CNN
F 2 "" H 6925 2825 60  0000 C CNN
F 3 "" H 6925 2825 60  0000 C CNN
	1    6925 2825
	0    -1   -1   0   
$EndComp
$Comp
L RFIDr_Open_Lib:LTC5505-1 U42
U 1 1 5E319326
P 8250 1275
F 0 "U42" H 8050 1325 60  0000 L CNN
F 1 "LTC5505-1" H 8275 800 60  0000 L CNN
F 2 "RFIDr_Open:TSOT-23-5" H 8475 1325 30  0000 C CNN
F 3 "" H 8250 1275 60  0000 C CNN
	1    8250 1275
	1    0    0    -1  
$EndComp
$Comp
L power:VAA #PWR0453
U 1 1 5E31932D
P 9600 1075
F 0 "#PWR0453" H 9600 925 50  0001 C CNN
F 1 "VAA" H 9600 1225 50  0000 C CNN
F 2 "" H 9600 1075 60  0000 C CNN
F 3 "" H 9600 1075 60  0000 C CNN
	1    9600 1075
	1    0    0    -1  
$EndComp
$Comp
L RFIDr_Open_Lib:TESTPOINT TP2
U 1 1 5E319336
P 9275 1675
F 0 "TP2" H 9307 1492 30  0000 C CNN
F 1 "TESTPOINT" H 9275 1625 30  0001 C CNN
F 2 "RFIDr_Open:TESTPOINT" H 9275 1650 30  0000 C CNN
F 3 "" H 9275 1675 60  0000 C CNN
	1    9275 1675
	-1   0    0    1   
$EndComp
$Comp
L power:GNDA #PWR0454
U 1 1 5E319342
P 5100 3700
F 0 "#PWR0454" H 5100 3450 50  0001 C CNN
F 1 "GNDA" V 5100 3475 50  0000 C CNN
F 2 "" H 5100 3700 60  0000 C CNN
F 3 "" H 5100 3700 60  0000 C CNN
	1    5100 3700
	0    1    1    0   
$EndComp
$Comp
L power:VAA #PWR0455
U 1 1 5E31A14F
P 4925 1700
F 0 "#PWR0455" H 4925 1550 50  0001 C CNN
F 1 "VAA" H 4925 1850 50  0000 C CNN
F 2 "" H 4925 1700 60  0000 C CNN
F 3 "" H 4925 1700 60  0000 C CNN
	1    4925 1700
	1    0    0    -1  
$EndComp
$Comp
L Device:R R77
U 1 1 5E31A155
P 5100 1800
F 0 "R77" V 5180 1800 50  0000 C CNN
F 1 "0" V 5100 1800 50  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 5000 1900 30  0000 C CNN
F 3 "" H 5100 1800 30  0000 C CNN
	1    5100 1800
	0    1    1    0   
$EndComp
Text Label 6175 775  3    60   ~ 0
RX_FILT
$Comp
L Device:C_Small C125
U 1 1 5E31AF39
P 5475 725
F 0 "C125" V 5425 800 50  0000 L CNN
F 1 "100p" V 5425 450 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 5350 750 30  0000 C CNN
F 3 "" H 5475 725 60  0000 C CNN
	1    5475 725 
	0    -1   -1   0   
$EndComp
$Comp
L power:GNDA #PWR0456
U 1 1 5E31AF46
P 7975 1475
F 0 "#PWR0456" H 7975 1225 50  0001 C CNN
F 1 "GNDA" V 7975 1275 50  0000 C CNN
F 2 "" H 7975 1475 60  0000 C CNN
F 3 "" H 7975 1475 60  0000 C CNN
	1    7975 1475
	0    1    1    0   
$EndComp
$Comp
L power:VAA #PWR0457
U 1 1 5E31AF4D
P 7975 1575
F 0 "#PWR0457" H 7975 1425 50  0001 C CNN
F 1 "VAA" V 7975 1750 50  0000 C CNN
F 2 "" H 7975 1575 60  0000 C CNN
F 3 "" H 7975 1575 60  0000 C CNN
	1    7975 1575
	0    -1   -1   0   
$EndComp
$Comp
L Device:C_Small C101
U 1 1 5E31AF56
P 9600 1600
F 0 "C101" H 9610 1670 50  0000 L CNN
F 1 "100n" H 9610 1520 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 9850 1525 30  0000 C CNN
F 3 "" H 9600 1600 60  0000 C CNN
	1    9600 1600
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR0458
U 1 1 5E31AF5D
P 9600 1875
F 0 "#PWR0458" H 9600 1625 50  0001 C CNN
F 1 "GNDA" H 9600 1700 50  0000 C CNN
F 2 "" H 9600 1875 60  0000 C CNN
F 3 "" H 9600 1875 60  0000 C CNN
	1    9600 1875
	1    0    0    -1  
$EndComp
$Comp
L Device:R R72
U 1 1 5E31AF65
P 6175 2100
F 0 "R72" V 6075 2100 50  0000 C CNN
F 1 "0" V 6175 2100 50  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 6275 2025 30  0000 C CNN
F 3 "" H 6175 2100 30  0000 C CNN
	1    6175 2100
	-1   0    0    1   
$EndComp
$Comp
L Device:R R94
U 1 1 5E31AF6D
P 7400 1375
F 0 "R94" V 7300 1375 50  0000 C CNN
F 1 "0" V 7400 1375 50  0000 C CNN
F 2 "Resistors_SMD:R_0402" V 7475 1300 30  0000 C CNN
F 3 "" H 7400 1375 30  0000 C CNN
	1    7400 1375
	0    -1   -1   0   
$EndComp
$Comp
L Device:C_Small C22
U 1 1 5E31B803
P 5475 925
F 0 "C22" V 5425 725 50  0000 L CNN
F 1 "100p" V 5425 1000 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 5350 950 30  0000 C CNN
F 3 "" H 5475 925 60  0000 C CNN
	1    5475 925 
	0    -1   -1   0   
$EndComp
$Comp
L Device:C_Small C107
U 1 1 5E31C08D
P 2975 825
F 0 "C107" V 2925 875 50  0000 L CNN
F 1 "100p" V 2925 600 50  0000 L CNN
F 2 "Capacitors_SMD:C_0402" V 3075 900 30  0000 C CNN
F 3 "" H 2975 825 60  0000 C CNN
	1    2975 825 
	0    1    1    0   
$EndComp
Text Label 3425 825  2    60   ~ 0
RF2
$Comp
L power:GNDA #PWR0459
U 1 1 5E31C095
P 3850 725
F 0 "#PWR0459" H 3850 475 50  0001 C CNN
F 1 "GNDA" V 3850 500 50  0000 C CNN
F 2 "" H 3850 725 60  0000 C CNN
F 3 "" H 3850 725 60  0000 C CNN
	1    3850 725 
	0    1    1    0   
$EndComp
$Comp
L power:GNDA #PWR0460
U 1 1 5E31C09B
P 3850 925
F 0 "#PWR0460" H 3850 675 50  0001 C CNN
F 1 "GNDA" V 3850 700 50  0000 C CNN
F 2 "" H 3850 925 60  0000 C CNN
F 3 "" H 3850 925 60  0000 C CNN
	1    3850 925 
	0    1    1    0   
$EndComp
$Comp
L RFIDr_Open_Lib:0917BL18B100E U41
U 1 1 5E31C0A1
P 4150 575
F 0 "U41" H 4475 575 60  0000 R CNN
F 1 "0917BL18B100E" H 4775 75  60  0000 R CNN
F 2 "RFIDr_Open:0917BL18B100E" H 4550 -25 60  0000 C CNN
F 3 "" H 4150 575 60  0000 C CNN
	1    4150 575 
	1    0    0    -1  
$EndComp
Text HLabel 6800 725  2    60   Input ~ 0
RX_FILT
Text HLabel 2400 825  0    60   Output ~ 0
PA_IN
$Comp
L RFIDr_Open_Lib:SX1257 U28
U 1 1 5E3186E3
P 5375 3100
F 0 "U28" H 6025 2450 60  0000 C CNN
F 1 "SX1257" H 6025 2575 60  0000 C CNN
F 2 "RFIDr_Open:QFN-32-1EP_5x5mm_Pitch0.5mm_wvias" H 7300 1950 30  0000 C CNN
F 3 "" H 5375 3100 60  0000 C CNN
	1    5375 3100
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR0461
U 1 1 5E341DC9
P 6275 2850
F 0 "#PWR0461" H 6275 2600 50  0001 C CNN
F 1 "GNDA" V 6275 2625 50  0000 C CNN
F 2 "" H 6275 2850 60  0000 C CNN
F 3 "" H 6275 2850 60  0000 C CNN
	1    6275 2850
	-1   0    0    1   
$EndComp
$Comp
L power:GNDA #PWR0462
U 1 1 5E341E54
P 6075 2850
F 0 "#PWR0462" H 6075 2600 50  0001 C CNN
F 1 "GNDA" V 6075 2625 50  0000 C CNN
F 2 "" H 6075 2850 60  0000 C CNN
F 3 "" H 6075 2850 60  0000 C CNN
	1    6075 2850
	-1   0    0    1   
$EndComp
$Comp
L power:GNDA #PWR0463
U 1 1 5E341E9F
P 5775 2850
F 0 "#PWR0463" H 5775 2600 50  0001 C CNN
F 1 "GNDA" V 5775 2625 50  0000 C CNN
F 2 "" H 5775 2850 60  0000 C CNN
F 3 "" H 5775 2850 60  0000 C CNN
	1    5775 2850
	-1   0    0    1   
$EndComp
$Comp
L power:GNDA #PWR0464
U 1 1 5E341FC0
P 5475 2850
F 0 "#PWR0464" H 5475 2600 50  0001 C CNN
F 1 "GNDA" V 5475 2625 50  0000 C CNN
F 2 "" H 5475 2850 60  0000 C CNN
F 3 "" H 5475 2850 60  0000 C CNN
	1    5475 2850
	-1   0    0    1   
$EndComp
Wire Wire Line
	3850 725  3950 725 
Wire Wire Line
	3850 925  3950 925 
Wire Wire Line
	2875 825  2400 825 
Wire Wire Line
	3075 825  3950 825 
Wire Wire Line
	5575 925  5875 925 
Wire Wire Line
	4950 925  5375 925 
Wire Wire Line
	6175 725  6800 725 
Wire Wire Line
	6175 725  6175 1375
Wire Wire Line
	7550 1375 8050 1375
Wire Wire Line
	6175 2250 6175 2900
Wire Wire Line
	9600 1875 9600 1700
Wire Wire Line
	7975 1575 8050 1575
Wire Wire Line
	7975 1475 8050 1475
Wire Wire Line
	4950 725  5375 725 
Wire Wire Line
	5575 725  5975 725 
Wire Wire Line
	4925 1700 4925 1800
Wire Wire Line
	4925 1800 4950 1800
Wire Wire Line
	5250 1800 5300 1800
Connection ~ 3925 3400
Wire Wire Line
	4125 3400 3925 3400
Wire Wire Line
	4325 3400 5050 3400
Wire Wire Line
	5175 3700 5100 3700
Wire Wire Line
	9050 1375 9600 1375
Wire Wire Line
	6375 2825 6575 2825
Wire Wire Line
	6375 2900 6375 2825
Wire Wire Line
	6925 2825 6775 2825
Wire Wire Line
	5975 725  5975 2900
Wire Wire Line
	5875 925  5875 2900
Wire Wire Line
	5675 1800 5675 2900
Wire Wire Line
	6275 2850 6275 2900
Wire Wire Line
	6075 2850 6075 2900
Wire Wire Line
	5775 2850 5775 2900
Wire Wire Line
	5300 2225 5300 2325
Wire Wire Line
	4225 3050 4375 3050
Wire Wire Line
	4325 2750 5175 2750
Wire Wire Line
	5175 2750 5175 3400
Wire Wire Line
	5050 3500 5175 3500
Wire Wire Line
	5050 3050 5050 3400
Wire Wire Line
	3925 2750 4125 2750
Connection ~ 3925 3600
Connection ~ 3925 3800
Wire Wire Line
	4325 3600 5175 3600
Wire Wire Line
	3925 3600 4125 3600
Wire Wire Line
	3925 2750 3925 3400
Wire Wire Line
	3875 3800 3925 3800
Wire Wire Line
	4300 3800 5175 3800
Wire Wire Line
	2700 3750 2700 3800
Wire Wire Line
	5475 2850 5475 2900
Wire Wire Line
	8025 3500 6875 3500
Wire Wire Line
	8025 3400 6875 3400
Wire Wire Line
	6875 3800 8025 3800
Wire Wire Line
	6575 4800 6575 5025
Wire Wire Line
	7200 4800 7200 4650
Wire Wire Line
	7125 4800 7200 4800
Connection ~ 2250 5700
Wire Wire Line
	2250 5700 2250 5875
Wire Wire Line
	2250 6075 2250 6225
Wire Wire Line
	1700 5350 1700 5300
Wire Wire Line
	2300 5225 2350 5225
Wire Wire Line
	1550 5025 1700 5025
Wire Wire Line
	2300 5125 2350 5125
Connection ~ 4100 5025
Wire Wire Line
	4275 5025 4275 5075
Wire Wire Line
	2975 5025 4100 5025
Wire Wire Line
	4100 5025 4100 5700
Wire Wire Line
	4100 5700 4025 5700
Wire Wire Line
	4275 5275 4275 5350
Wire Wire Line
	4025 5800 4500 5800
Wire Wire Line
	3100 3900 5175 3900
Wire Wire Line
	2000 3350 2200 3350
Wire Wire Line
	2000 3450 2000 3350
Wire Wire Line
	2700 4250 2700 4200
Wire Wire Line
	2050 5700 2250 5700
Wire Wire Line
	2825 5800 2750 5800
Wire Wire Line
	5000 5800 4800 5800
Wire Wire Line
	1900 3450 1900 3350
Wire Wire Line
	2000 4325 2000 4250
Wire Wire Line
	5875 5700 5875 5475
Wire Wire Line
	5875 5175 5875 4600
Wire Wire Line
	5100 4000 5175 4000
Wire Wire Line
	6575 5225 6575 5300
Wire Wire Line
	6275 4600 6275 4700
Wire Wire Line
	6175 4600 6175 4700
Wire Wire Line
	6075 4600 6075 4700
Wire Wire Line
	5975 4600 5975 4700
Wire Wire Line
	5775 4600 5775 4700
Wire Wire Line
	5675 4675 5675 4600
Wire Wire Line
	6875 4100 8025 4100
Wire Wire Line
	6875 4000 8025 4000
Wire Wire Line
	6875 3900 8025 3900
Wire Wire Line
	9050 1575 9175 1575
Wire Wire Line
	9600 1075 9600 1375
Connection ~ 9600 1375
Wire Wire Line
	7250 1375 6175 1375
Wire Wire Line
	6375 4800 6575 4800
Wire Wire Line
	6375 4800 6375 4600
Connection ~ 6575 4800
Wire Wire Line
	5300 2025 5300 1800
Connection ~ 5300 1800
Wire Wire Line
	1700 5100 1700 5025
Connection ~ 1700 5025
Wire Wire Line
	1900 4250 1900 4600
Wire Wire Line
	1900 4600 2150 4600
Wire Wire Line
	2700 3550 2700 3350
Wire Wire Line
	2500 3350 2700 3350
Wire Wire Line
	2450 4600 2700 4600
Wire Wire Line
	2700 4600 2700 4450
Wire Wire Line
	3100 3350 3100 3900
Connection ~ 2700 3350
Wire Wire Line
	3125 4600 3125 4100
Connection ~ 2700 4600
Connection ~ 6175 1375
Connection ~ 5050 3400
Wire Wire Line
	5050 3050 4675 3050
Wire Wire Line
	3925 3400 3925 3600
Wire Wire Line
	3925 3600 3925 3800
Wire Wire Line
	3925 3800 4100 3800
Wire Wire Line
	2250 5700 2825 5700
Wire Wire Line
	4100 5025 4275 5025
Wire Wire Line
	9600 1375 9600 1500
Wire Wire Line
	6575 4800 6825 4800
Wire Wire Line
	5300 1800 5675 1800
Wire Wire Line
	1700 5025 2350 5025
Wire Wire Line
	2700 3350 3100 3350
Wire Wire Line
	2700 4600 3125 4600
Wire Wire Line
	6175 1375 6175 1950
Wire Wire Line
	5050 3400 5050 3500
Wire Wire Line
	3125 4100 5000 4100
Wire Wire Line
	5000 5800 5000 4100
Connection ~ 5000 4100
Wire Wire Line
	5000 4100 5175 4100
Text Notes 675  7850 0    100  ~ 0
Schematic Summary: TRX\nThis schematic encapsulates the SX1257 TX/RX radio ASIC\nwhich is being used as a full-duplex software defined radio \nfront-end. In addition to the SDR front-end ASIC, there are:\n-Crystal for SX1257 frequency synthesis\n-Alternate crystal oscillator (XO) for SX1257 frequency synthesis\n-TX Balun\n-LTC5505-1 power detector (DNI'ed) for debugging.
Wire Notes Line
	600  6550 600  7925
Wire Notes Line
	600  7925 5850 7925
Wire Notes Line
	5850 7925 5850 6550
Wire Notes Line
	5850 6550 600  6550
Text Notes 6950 5475 0    50   ~ 0
Design Note: put resistors in series with power supplies\nfor optional installation of filtering (inductor or ferrite).\nAlso, current can be measured for debug by installing\na resistor here.
Wire Notes Line
	6900 5100 6900 5550
Wire Notes Line
	6900 5550 9200 5550
Wire Notes Line
	9200 5550 9200 5100
Wire Notes Line
	9200 5100 6900 5100
Text Notes 6950 6400 0    50   ~ 0
Design Note: CLK_OUT, I_IN/OUT, Q IN/OUT all run at 36MHz\nand should be laid out with high speed digital layout techniques.\nThis means:\n-No crossing ground planes.\n-Route them daisy chained to/from the FPGA.\n-In a second iteration, we may terminate the lines\nat the receiving end with a shunt resistor.\n-In a second iteration, we may use impedance-\ncontrolled routing lines for these signals.
Wire Notes Line
	6900 5625 6900 6425
Wire Notes Line
	6900 6425 9600 6425
Wire Notes Line
	9600 6425 9600 5625
Wire Notes Line
	9600 5625 6900 5625
Text Notes 1000 2850 0    50   ~ 0
Design Note: There are two PLL reference clock options here\nbecause PLL phase noise performance is critical for UHF RFID.\nIt turned out that neither was shown to have a clear advantage.\nOnly one option should be installed at a given time.
Wire Notes Line
	950  2475 950  2925
Wire Notes Line
	950  2925 3550 2925
Wire Notes Line
	3550 2925 3550 2450
Wire Notes Line
	3550 2450 950  2450
Text Notes 1025 3925 0    100  ~ 0
Crystal
Text Notes 2500 5450 0    100  ~ 0
LDO
Text Notes 2800 6175 0    100  ~ 0
Crystal Oscillator
Text Notes 4125 1375 0    100  ~ 0
TX Balun
Text Notes 7925 2125 0    100  ~ 0
Power Detector\nfor Debug (DNI'ed)
Text Notes 7375 3275 0    100  ~ 0
SX1257\nFull-Duplex\nCapable SDR\nFront-End\nASIC
$EndSCHEMATC