EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 7
Title "icE1usb - GPS"
Date "2020-08-26"
Rev "1.0"
Comp ""
Comment1 "CERN-OHL-S"
Comment2 "(C) 2020 Sylvain Munaut"
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L RF_GPS:MAX-M8W U?
U 1 1 5F27F978
P 4000 3800
AR Path="/5F27F978" Ref="U?"  Part="1" 
AR Path="/5F27E0F4/5F27F978" Ref="U8"  Part="1" 
F 0 "U8" H 3500 3100 50  0000 C CNN
F 1 "MAX-M8W" H 3600 3000 50  0000 C CNN
F 2 "s47-misc:ublox_MAX" H 4400 3150 50  0001 C CNN
F 3 "https://www.u-blox.com/sites/default/files/MAX-M8-FW3_DataSheet_%28UBX-15031506%29.pdf" H 4000 3800 50  0001 C CNN
	1    4000 3800
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR046
U 1 1 5F2E5DB9
P 4000 4600
F 0 "#PWR046" H 4000 4350 50  0001 C CNN
F 1 "GND" H 4005 4427 50  0000 C CNN
F 2 "" H 4000 4600 50  0001 C CNN
F 3 "" H 4000 4600 50  0001 C CNN
	1    4000 4600
	1    0    0    -1  
$EndComp
Wire Wire Line
	4000 4500 4000 4600
Text HLabel 1500 3800 0    50   Input ~ 0
RF
Wire Wire Line
	1500 3800 2000 3800
Text HLabel 5500 3700 2    50   BiDi ~ 0
i2c_sda
Text HLabel 5500 3800 2    50   BiDi ~ 0
i2c_scl
Text HLabel 5500 4200 2    50   Input ~ 0
~reset
Text HLabel 5500 5000 2    50   Output ~ 0
pps
Wire Wire Line
	5500 3500 5300 3500
Wire Wire Line
	5500 3600 5300 3600
Wire Wire Line
	5500 3700 5300 3700
Wire Wire Line
	5500 3800 5300 3800
Wire Wire Line
	5500 4200 4600 4200
Wire Wire Line
	3400 4100 3200 4100
Wire Wire Line
	3200 4100 3200 5000
Wire Wire Line
	3200 5000 5500 5000
$Comp
L Device:C_Small C23
U 1 1 5F3311E6
P 4700 2500
F 0 "C23" H 4792 2546 50  0000 L CNN
F 1 "100n" H 4792 2455 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4700 2500 50  0001 C CNN
F 3 "~" H 4700 2500 50  0001 C CNN
	1    4700 2500
	1    0    0    -1  
$EndComp
$Comp
L Device:L_Small L1
U 1 1 5F334BA8
P 2800 3500
F 0 "L1" H 2848 3546 50  0000 L CNN
F 1 "47n" H 2848 3455 50  0000 L CNN
F 2 "Inductor_SMD:L_0402_1005Metric" H 2800 3500 50  0001 C CNN
F 3 "~" H 2800 3500 50  0001 C CNN
F 4 "Murata LQW15AN47NG00D" H 2800 3500 50  0001 C CNN "MPN"
	1    2800 3500
	1    0    0    -1  
$EndComp
Wire Wire Line
	2800 3600 2800 3800
Connection ~ 2800 3800
Wire Wire Line
	2800 3800 3400 3800
$Comp
L power:+3V3 #PWR047
U 1 1 5F336762
P 4200 2200
F 0 "#PWR047" H 4200 2050 50  0001 C CNN
F 1 "+3V3" H 4215 2373 50  0000 C CNN
F 2 "" H 4200 2200 50  0001 C CNN
F 3 "" H 4200 2200 50  0001 C CNN
	1    4200 2200
	1    0    0    -1  
$EndComp
Wire Wire Line
	4200 2200 4200 2300
$Comp
L Device:C_Small C24
U 1 1 5F337095
P 5000 2500
F 0 "C24" H 5092 2546 50  0000 L CNN
F 1 "1u" H 5092 2455 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 5000 2500 50  0001 C CNN
F 3 "~" H 5000 2500 50  0001 C CNN
	1    5000 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	4200 2300 4400 2300
Wire Wire Line
	5000 2300 5000 2400
Connection ~ 4200 2300
Wire Wire Line
	4200 2300 4200 3000
Wire Wire Line
	4700 2300 4700 2400
Connection ~ 4700 2300
Wire Wire Line
	4700 2300 5000 2300
$Comp
L Device:C_Small C22
U 1 1 5F337E6D
P 4400 2500
F 0 "C22" H 4492 2546 50  0000 L CNN
F 1 "100n" H 4492 2455 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4400 2500 50  0001 C CNN
F 3 "~" H 4400 2500 50  0001 C CNN
	1    4400 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	4400 2300 4400 2400
Connection ~ 4400 2300
Wire Wire Line
	4400 2300 4700 2300
Wire Wire Line
	4100 3100 4100 3000
Wire Wire Line
	4100 3000 4200 3000
Connection ~ 4200 3000
Wire Wire Line
	4200 3000 4200 3100
$Comp
L power:GND #PWR048
U 1 1 5F33D588
P 4400 2700
F 0 "#PWR048" H 4400 2450 50  0001 C CNN
F 1 "GND" H 4405 2527 50  0000 C CNN
F 2 "" H 4400 2700 50  0001 C CNN
F 3 "" H 4400 2700 50  0001 C CNN
	1    4400 2700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR049
U 1 1 5F33DC6F
P 4700 2700
F 0 "#PWR049" H 4700 2450 50  0001 C CNN
F 1 "GND" H 4705 2527 50  0000 C CNN
F 2 "" H 4700 2700 50  0001 C CNN
F 3 "" H 4700 2700 50  0001 C CNN
	1    4700 2700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR050
U 1 1 5F33DD47
P 5000 2700
F 0 "#PWR050" H 5000 2450 50  0001 C CNN
F 1 "GND" H 5005 2527 50  0000 C CNN
F 2 "" H 5000 2700 50  0001 C CNN
F 3 "" H 5000 2700 50  0001 C CNN
	1    5000 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	5000 2600 5000 2700
Wire Wire Line
	4700 2600 4700 2700
Wire Wire Line
	4400 2600 4400 2700
NoConn ~ 4600 4000
NoConn ~ 4600 4100
$Comp
L Device:R_Small R18
U 1 1 5F33F9B7
P 3800 2500
F 0 "R18" H 3859 2591 50  0000 L CNN
F 1 "10R" H 3859 2500 50  0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 3800 2500 50  0001 C CNN
F 3 "~" H 3800 2500 50  0001 C CNN
F 4 "DNP" H 3859 2409 50  0000 L CNN "DNP"
	1    3800 2500
	-1   0    0    -1  
$EndComp
$Comp
L Device:C_Small C21
U 1 1 5F33FEBE
P 3500 2500
F 0 "C21" H 3408 2409 50  0000 R CNN
F 1 "100n" H 3408 2500 50  0000 R CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 3500 2500 50  0001 C CNN
F 3 "~" H 3500 2500 50  0001 C CNN
F 4 "DNP" H 3408 2591 50  0000 R CNN "DNP"
	1    3500 2500
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR045
U 1 1 5F341049
P 3500 2700
F 0 "#PWR045" H 3500 2450 50  0001 C CNN
F 1 "GND" H 3505 2527 50  0000 C CNN
F 2 "" H 3500 2700 50  0001 C CNN
F 3 "" H 3500 2700 50  0001 C CNN
	1    3500 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	3800 3000 3800 3100
Wire Wire Line
	2800 3000 2800 3400
Wire Wire Line
	3500 2600 3500 2700
Wire Wire Line
	3800 3000 3800 2600
Connection ~ 3800 3000
Wire Wire Line
	3900 3100 3900 2300
Wire Wire Line
	3900 2300 3800 2300
Wire Wire Line
	3800 2300 3800 2400
Wire Wire Line
	3800 2300 3500 2300
Wire Wire Line
	3500 2300 3500 2400
Connection ~ 3800 2300
Wire Wire Line
	2800 3000 3800 3000
Text Notes 2100 2800 0    50   ~ 0
For M8W:\n - Place C & R between\n   Vcc_RF and V_ant\n\nFor ATGM336H:\n - Place the bias inductor\n
$Comp
L Device:Battery_Cell BT1
U 1 1 5F34DAE6
P 8000 4200
F 0 "BT1" H 7883 4341 50  0000 R CNN
F 1 "VL-1220/VCN" H 7883 4250 50  0000 R CNN
F 2 "Battery:Battery_Panasonic_CR1220-VCN_Vertical_CircularHoles" V 8000 4260 50  0001 C CNN
F 3 "~" V 8000 4260 50  0001 C CNN
F 4 "DNP" H 7883 4159 50  0000 R CNN "DNP"
	1    8000 4200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR052
U 1 1 5F34E154
P 8000 4400
F 0 "#PWR052" H 8000 4150 50  0001 C CNN
F 1 "GND" H 8005 4227 50  0000 C CNN
F 2 "" H 8000 4400 50  0001 C CNN
F 3 "" H 8000 4400 50  0001 C CNN
	1    8000 4400
	1    0    0    -1  
$EndComp
$Comp
L Device:Jumper_NC_Small JP1
U 1 1 5F34E744
P 7800 3500
F 0 "JP1" H 7800 3712 50  0000 C CNN
F 1 "BatBypass" H 7800 3621 50  0000 C CNN
F 2 "s47-misc:J_NC_0603_30" H 7800 3500 50  0001 C CNN
F 3 "~" H 7800 3500 50  0001 C CNN
	1    7800 3500
	1    0    0    -1  
$EndComp
Wire Wire Line
	8000 4300 8000 4400
Wire Wire Line
	8000 4000 8000 3900
Wire Wire Line
	8000 3900 8300 3900
Wire Wire Line
	4000 2300 4000 3100
Text Label 4000 2300 3    50   ~ 0
vbackup
Text Label 8900 3900 2    50   ~ 0
vbackup
$Comp
L power:+3V3 #PWR051
U 1 1 5F35197E
P 7000 3300
F 0 "#PWR051" H 7000 3150 50  0001 C CNN
F 1 "+3V3" H 7015 3473 50  0000 C CNN
F 2 "" H 7000 3300 50  0001 C CNN
F 3 "" H 7000 3300 50  0001 C CNN
	1    7000 3300
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C25
U 1 1 5F3521E0
P 8300 4200
F 0 "C25" H 8392 4246 50  0000 L CNN
F 1 "100n" H 8392 4155 50  0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 8300 4200 50  0001 C CNN
F 3 "~" H 8300 4200 50  0001 C CNN
	1    8300 4200
	1    0    0    -1  
$EndComp
Wire Wire Line
	8300 3900 8300 4100
Connection ~ 8300 3900
Wire Wire Line
	8300 3900 8900 3900
$Comp
L power:GND #PWR053
U 1 1 5F353C3F
P 8300 4400
F 0 "#PWR053" H 8300 4150 50  0001 C CNN
F 1 "GND" H 8305 4227 50  0000 C CNN
F 2 "" H 8300 4400 50  0001 C CNN
F 3 "" H 8300 4400 50  0001 C CNN
	1    8300 4400
	1    0    0    -1  
$EndComp
Wire Wire Line
	8300 4300 8300 4400
Wire Wire Line
	7000 3300 7000 3500
Wire Wire Line
	7000 3500 7700 3500
Wire Wire Line
	7900 3500 8000 3500
Wire Wire Line
	8000 3500 8000 3900
Connection ~ 8000 3900
$Comp
L Device:R_Small R19
U 1 1 5F357044
P 7700 3900
F 0 "R19" V 7414 3900 50  0000 C CNN
F 1 "330R" V 7505 3900 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 7700 3900 50  0001 C CNN
F 3 "~" H 7700 3900 50  0001 C CNN
F 4 "DNP" V 7596 3900 50  0000 C CNN "DNP"
	1    7700 3900
	0    -1   1    0   
$EndComp
$Comp
L Device:D_Schottky_Small D4
U 1 1 5F35AA23
P 7300 3900
F 0 "D4" H 7300 3605 50  0000 C CNN
F 1 "SDM02U30LP3" H 7300 3696 50  0000 C CNN
F 2 "Diode_SMD:D_0603_1608Metric" V 7300 3900 50  0001 C CNN
F 3 "~" V 7300 3900 50  0001 C CNN
F 4 "DNP" H 7300 3787 50  0000 C CNN "DNP"
	1    7300 3900
	-1   0    0    1   
$EndComp
Wire Wire Line
	7800 3900 8000 3900
Wire Wire Line
	7600 3900 7400 3900
Wire Wire Line
	7000 3500 7000 3900
Wire Wire Line
	7000 3900 7200 3900
Connection ~ 7000 3500
$Comp
L Device:D_TVS D3
U 1 1 5F37B3C0
P 2000 4250
F 0 "D3" V 1954 4329 50  0000 L CNN
F 1 "PESD0402-140" V 2045 4329 50  0000 L CNN
F 2 "Diode_SMD:D_0402_1005Metric" H 2000 4250 50  0001 C CNN
F 3 "~" H 2000 4250 50  0001 C CNN
F 4 "Little Fuse PESD0402-140" V 2000 4250 50  0001 C CNN "MPN"
	1    2000 4250
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR044
U 1 1 5F37BB33
P 2000 4600
F 0 "#PWR044" H 2000 4350 50  0001 C CNN
F 1 "GND" H 2005 4427 50  0000 C CNN
F 2 "" H 2000 4600 50  0001 C CNN
F 3 "" H 2000 4600 50  0001 C CNN
	1    2000 4600
	1    0    0    -1  
$EndComp
Wire Wire Line
	2000 4400 2000 4600
Wire Wire Line
	2000 4100 2000 3800
Connection ~ 2000 3800
Wire Wire Line
	2000 3800 2800 3800
Text Notes 8300 3500 0    50   ~ 0
Battery and charging circuit\nis DNP by default
$Comp
L power:PWR_FLAG #FLG03
U 1 1 5F6D51CD
P 8300 3800
F 0 "#FLG03" H 8300 3875 50  0001 C CNN
F 1 "PWR_FLAG" H 8300 3973 50  0001 C CNN
F 2 "" H 8300 3800 50  0001 C CNN
F 3 "~" H 8300 3800 50  0001 C CNN
	1    8300 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	8300 3800 8300 3900
$Comp
L power:PWR_FLAG #FLG02
U 1 1 5F6DA120
P 3800 2200
F 0 "#FLG02" H 3800 2275 50  0001 C CNN
F 1 "PWR_FLAG" H 3800 2373 50  0001 C CNN
F 2 "" H 3800 2200 50  0001 C CNN
F 3 "~" H 3800 2200 50  0001 C CNN
	1    3800 2200
	1    0    0    -1  
$EndComp
Wire Wire Line
	3800 2200 3800 2300
Text HLabel 5500 3600 2    50   Output ~ 0
tx
Text HLabel 5500 3500 2    50   Input ~ 0
rx
$Comp
L Device:R_Pack04 RN6
U 1 1 5F77D81A
P 5100 3700
F 0 "RN6" V 4683 3700 50  0000 C CNN
F 1 "33R" V 4774 3700 50  0000 C CNN
F 2 "Resistor_SMD:R_Array_Convex_4x0603" V 5375 3700 50  0001 C CNN
F 3 "~" H 5100 3700 50  0001 C CNN
	1    5100 3700
	0    1    1    0   
$EndComp
Wire Wire Line
	4900 3500 4800 3500
Wire Wire Line
	4800 3500 4800 3400
Wire Wire Line
	4800 3400 4600 3400
Wire Wire Line
	4600 3500 4700 3500
Wire Wire Line
	4700 3500 4700 3600
Wire Wire Line
	4700 3600 4900 3600
Wire Wire Line
	4900 3700 4600 3700
Wire Wire Line
	4900 3800 4600 3800
$EndSCHEMATC