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EESchema Schematic File Version 2
LIBS:neo900
LIBS:powered
LIBS:bme280
LIBS:bmx055
LIBS:slg46531
LIBS:tmd2671
LIBS:gencon
LIBS:msl0104rgb
LIBS:nmosfet-gsd
LIBS:74x1g123
LIBS:74x1g74_6d
LIBS:74x2g07_6
LIBS:74x1g32_6
LIBS:fsa2866
LIBS:74x1g04_6
LIBS:101-00271-82
LIBS:lsf204rut
LIBS:txs4555rut
LIBS:ada4505-1acbz
LIBS:opt-mini-rf-tap
LIBS:tlv3691idpf
LIBS:tps61160drv
LIBS:dualbjt
LIBS:wl1837mod
LIBS:phs8-clean
LIBS:tsa5a22366
LIBS:xra1201
LIBS:pmosfet-gsd
LIBS:bb-xm-aux
LIBS:bb-xm-audio
LIBS:dualnmosfet
LIBS:xo-quad-en
LIBS:74x4051
LIBS:fuse
LIBS:two-way-jumper
LIBS:nx3v1g66_6
LIBS:dualpmosfet
LIBS:diode-3
LIBS:sp7538p
LIBS:r-array-8-2com
LIBS:slg46533v
LIBS:neo900-cache
EELAYER 25 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 12 25
Title "Misc"
Date "Intentionally Left Blank"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 "Xsheetnumber=15"
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VMODEM
Wire Wire Line
	2200 7800 2400 7800
Wire Wire Line
	2400 7800 2400 8000
Text Notes 1800 9800 0    60   ~ 0
VMODEM is based on\nVSYS >= 3.5 V
$Comp
L LED-0603 D?
U 1 1 585A27C0
P 3600 8800
AR Path="/578AFF10/585A27C0" Ref="D?"  Part="1" 
AR Path="/578AFF32/585A27C0" Ref="D?"  Part="1" 
AR Path="/578AFF0C/585A27C0" Ref="D1202"  Part="1" 
F 0 "D1202" V 3650 9000 50  0000 L CNN
F 1 "LTST-S270KxKT" V 3550 9000 50  0000 L CNN
F 2 "neo900-legacy:SMD-0603D" H 3590 8590 65  0001 L TNN
F 3 "" H 3600 8800 60  0001 C CNN
	1    3600 8800
	0    1    -1   0   
$EndComp
$Comp
L GND #U$?
U 1 1 585A27C6
P 3600 9300
AR Path="/578AFF16/585A27C6" Ref="#U$?"  Part="1" 
AR Path="/578AFF32/585A27C6" Ref="#U$?"  Part="1" 
AR Path="/578AFF0C/585A27C6" Ref="#U$1202"  Part="1" 
F 0 "#U$1202" H 3510 9200 70  0001 L BNN
F 1 "GND" H 3510 9200 70  0001 L BNN
F 2 "" H 3600 9300 60  0001 C CNN
F 3 "" H 3600 9300 60  0001 C CNN
	1    3600 9300
	1    0    0    -1  
$EndComp
Wire Wire Line
	3600 9100 3600 9200
$Comp
L R R1202
U 1 1 585A27CD
P 3600 8200
AR Path="/578AFF0C/585A27CD" Ref="R1202"  Part="1" 
AR Path="/578AFF12/585A27CD" Ref="R?"  Part="1" 
AR Path="/578AFF32/585A27CD" Ref="R?"  Part="1" 
F 0 "R1202" V 3550 8300 50  0000 L CNN
F 1 "2k7" H 3600 8200 50  0000 C CNN
F 2 "SMD-0402" H 3630 8350 20  0001 C CNN
F 3 "" H 3600 8200 60  0001 C CNN
	1    3600 8200
	0    1    1    0   
$EndComp
Wire Wire Line
	3600 8400 3600 8500
Text GLabel 3400 7800 0    60   Input ~ 0
DMIC_BIAS
Wire Wire Line
	3400 7800 3600 7800
Wire Wire Line
	3600 7800 3600 8000
$Comp
L LED-0603 D?
U 1 1 585A2925
P 4800 8800
AR Path="/578AFF10/585A2925" Ref="D?"  Part="1" 
AR Path="/578AFF32/585A2925" Ref="D?"  Part="1" 
AR Path="/578AFF0C/585A2925" Ref="D1203"  Part="1" 
F 0 "D1203" V 4850 9000 50  0000 L CNN
F 1 "LTST-S270KxKT" V 4750 9000 50  0000 L CNN
F 2 "neo900-legacy:SMD-0603D" H 4790 8590 65  0001 L TNN
F 3 "" H 4800 8800 60  0001 C CNN
	1    4800 8800
	0    1    -1   0   
$EndComp
$Comp
L R R1203
U 1 1 585A2932
P 4800 8200
AR Path="/578AFF0C/585A2932" Ref="R1203"  Part="1" 
AR Path="/578AFF12/585A2932" Ref="R?"  Part="1" 
AR Path="/578AFF32/585A2932" Ref="R?"  Part="1" 
F 0 "R1203" V 4750 8300 50  0000 L CNN
F 1 "1k" H 4800 8200 50  0000 C CNN
F 2 "SMD-0402" H 4830 8350 20  0001 C CNN
F 3 "" H 4800 8200 60  0001 C CNN
	1    4800 8200
	0    1    1    0   
$EndComp
Wire Wire Line
	4800 8400 4800 8500
Text GLabel 4600 7800 0    60   Input ~ 0
1V8
Wire Wire Line
	4600 7800 4800 7800
Wire Wire Line
	4800 7800 4800 8000
$Comp
L LED-0603 D?
U 1 1 585A2A1F
P 6000 8800
AR Path="/578AFF10/585A2A1F" Ref="D?"  Part="1" 
AR Path="/578AFF32/585A2A1F" Ref="D?"  Part="1" 
AR Path="/578AFF0C/585A2A1F" Ref="D1204"  Part="1" 
F 0 "D1204" V 6050 9000 50  0000 L CNN
F 1 "LTST-S270KxKT" V 5950 9000 50  0000 L CNN
F 2 "neo900-legacy:SMD-0603D" H 5990 8590 65  0001 L TNN
F 3 "" H 6000 8800 60  0001 C CNN
	1    6000 8800
	0    1    -1   0   
$EndComp
$Comp
L GND #U$?
U 1 1 585A2A25
P 6000 9300
AR Path="/578AFF16/585A2A25" Ref="#U$?"  Part="1" 
AR Path="/578AFF32/585A2A25" Ref="#U$?"  Part="1" 
AR Path="/578AFF0C/585A2A25" Ref="#U$1203"  Part="1" 
F 0 "#U$1203" H 5910 9200 70  0001 L BNN
F 1 "GND" H 5910 9200 70  0001 L BNN
F 2 "" H 6000 9300 60  0001 C CNN
F 3 "" H 6000 9300 60  0001 C CNN
	1    6000 9300
	1    0    0    -1  
$EndComp
Wire Wire Line
	6000 9100 6000 9200
$Comp
L R R1204
U 1 1 585A2A2C
P 6000 8200
AR Path="/578AFF0C/585A2A2C" Ref="R1204"  Part="1" 
AR Path="/578AFF12/585A2A2C" Ref="R?"  Part="1" 
AR Path="/578AFF32/585A2A2C" Ref="R?"  Part="1" 
F 0 "R1204" V 5950 8300 50  0000 L CNN
F 1 "1k" H 6000 8200 50  0000 C CNN
F 2 "SMD-0402" H 6030 8350 20  0001 C CNN
F 3 "" H 6000 8200 60  0001 C CNN
	1    6000 8200
	0    1    1    0   
$EndComp
Wire Wire Line
	6000 8400 6000 8500
Text GLabel 5800 7800 0    60   Input ~ 0
VEXT
Wire Wire Line
	5800 7800 6000 7800
Wire Wire Line
	6000 7800 6000 8000
Text Notes 3200 9700 0    60   ~ 0
DMIC_BIAS >= 2 V
Text Notes 5700 9700 0    60   ~ 0
VEXT = 1.8 V
$Comp
L LED-0603 D?
U 1 1 585A2E9D
P 7200 8800
AR Path="/578AFF10/585A2E9D" Ref="D?"  Part="1" 
AR Path="/578AFF32/585A2E9D" Ref="D?"  Part="1" 
AR Path="/578AFF0C/585A2E9D" Ref="D1205"  Part="1" 
F 0 "D1205" V 7250 9000 50  0000 L CNN
F 1 "LTST-S270KxKT" V 7150 9000 50  0000 L CNN
F 2 "neo900-legacy:SMD-0603D" H 7190 8590 65  0001 L TNN
F 3 "" H 7200 8800 60  0001 C CNN
	1    7200 8800
	0    1    -1   0   
$EndComp
$Comp
L GND #U$?
U 1 1 585A2EA3
P 7200 9300
AR Path="/578AFF16/585A2EA3" Ref="#U$?"  Part="1" 
AR Path="/578AFF32/585A2EA3" Ref="#U$?"  Part="1" 
AR Path="/578AFF0C/585A2EA3" Ref="#U$1204"  Part="1" 
F 0 "#U$1204" H 7110 9200 70  0001 L BNN
F 1 "GND" H 7110 9200 70  0001 L BNN
F 2 "" H 7200 9300 60  0001 C CNN
F 3 "" H 7200 9300 60  0001 C CNN
	1    7200 9300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7200 9100 7200 9200
$Comp
L R R1205
U 1 1 585A2EAA
P 7200 8200
AR Path="/578AFF0C/585A2EAA" Ref="R1205"  Part="1" 
AR Path="/578AFF12/585A2EAA" Ref="R?"  Part="1" 
AR Path="/578AFF32/585A2EAA" Ref="R?"  Part="1" 
F 0 "R1205" V 7150 8300 50  0000 L CNN
F 1 "12k" H 7200 8200 50  0000 C CNN
F 2 "SMD-0402" H 7230 8350 20  0001 C CNN
F 3 "" H 7200 8200 60  0001 C CNN
	1    7200 8200
	0    1    1    0   
$EndComp
Wire Wire Line
	7200 8400 7200 8500
Text GLabel 7000 7800 0    60   Input ~ 0
VGNSS
Wire Wire Line
	7000 7800 7200 7800
Wire Wire Line
	7200 7800 7200 8000
Text Notes 6900 9700 0    60   ~ 0
VGNSS = 3.05 V
$Comp
L LED-0603 D?
U 1 1 585A3684
P 8400 8800
AR Path="/578AFF10/585A3684" Ref="D?"  Part="1" 
AR Path="/578AFF32/585A3684" Ref="D?"  Part="1" 
AR Path="/578AFF0C/585A3684" Ref="D1206"  Part="1" 
F 0 "D1206" V 8450 9000 50  0000 L CNN
F 1 "DNP" V 8350 9000 50  0000 L CNN
F 2 "neo900-legacy:SMD-0603D" H 8390 8590 65  0001 L TNN
F 3 "" H 8400 8800 60  0001 C CNN
	1    8400 8800
	0    1    -1   0   
$EndComp
$Comp
L R R1206
U 1 1 585A368A
P 8400 8200
AR Path="/578AFF0C/585A368A" Ref="R1206"  Part="1" 
AR Path="/578AFF12/585A368A" Ref="R?"  Part="1" 
AR Path="/578AFF32/585A368A" Ref="R?"  Part="1" 
F 0 "R1206" V 8350 8300 50  0000 L CNN
F 1 "DNP" H 8400 8200 50  0000 C CNN
F 2 "SMD-0402" H 8430 8350 20  0001 C CNN
F 3 "" H 8400 8200 60  0001 C CNN
	1    8400 8200
	0    1    1    0   
$EndComp
Wire Wire Line
	8400 8400 8400 8500
$Comp
L LED-0603 D?
U 1 1 585A3861
P 9600 8800
AR Path="/578AFF10/585A3861" Ref="D?"  Part="1" 
AR Path="/578AFF32/585A3861" Ref="D?"  Part="1" 
AR Path="/578AFF0C/585A3861" Ref="D1207"  Part="1" 
F 0 "D1207" V 9650 9000 50  0000 L CNN
F 1 "DNP" V 9550 9000 50  0000 L CNN
F 2 "neo900-legacy:SMD-0603D" H 9590 8590 65  0001 L TNN
F 3 "" H 9600 8800 60  0001 C CNN
	1    9600 8800
	0    1    -1   0   
$EndComp
$Comp
L R R1207
U 1 1 585A3867
P 9600 8200
AR Path="/578AFF0C/585A3867" Ref="R1207"  Part="1" 
AR Path="/578AFF12/585A3867" Ref="R?"  Part="1" 
AR Path="/578AFF32/585A3867" Ref="R?"  Part="1" 
F 0 "R1207" V 9550 8300 50  0000 L CNN
F 1 "DNP" H 9600 8200 50  0000 C CNN
F 2 "SMD-0402" H 9630 8350 20  0001 C CNN
F 3 "" H 9600 8200 60  0001 C CNN
	1    9600 8200
	0    1    1    0   
$EndComp
Wire Wire Line
	9600 8400 9600 8500
$Comp
L LED-0603 D?
U 1 1 585A3B69
P 10800 8800
AR Path="/578AFF10/585A3B69" Ref="D?"  Part="1" 
AR Path="/578AFF32/585A3B69" Ref="D?"  Part="1" 
AR Path="/578AFF0C/585A3B69" Ref="D1208"  Part="1" 
F 0 "D1208" V 10850 9000 50  0000 L CNN
F 1 "DNP" V 10750 9000 50  0000 L CNN
F 2 "neo900-legacy:SMD-0603D" H 10790 8590 65  0001 L TNN
F 3 "" H 10800 8800 60  0001 C CNN
	1    10800 8800
	0    1    -1   0   
$EndComp
$Comp
L R R1208
U 1 1 585A3B6F
P 10800 8200
AR Path="/578AFF0C/585A3B6F" Ref="R1208"  Part="1" 
AR Path="/578AFF12/585A3B6F" Ref="R?"  Part="1" 
AR Path="/578AFF32/585A3B6F" Ref="R?"  Part="1" 
F 0 "R1208" V 10750 8300 50  0000 L CNN
F 1 "DNP" H 10800 8200 50  0000 C CNN
F 2 "SMD-0402" H 10830 8350 20  0001 C CNN
F 3 "" H 10800 8200 60  0001 C CNN
	1    10800 8200
	0    1    1    0   
$EndComp
Wire Wire Line
	10800 8400 10800 8500
$Comp
L TEST-POINT-1.25 TP1203
U 1 1 585A3BD6
P 8400 7800
F 0 "TP1203" H 8390 7790 65  0001 L TNN
F 1 "DBG_1_P" H 8350 7800 60  0000 R CNN
F 2 "neo900-legacy:TP-1.25" H 8390 7590 65  0001 L TNN
F 3 "" H 8400 7800 60  0001 C CNN
	1    8400 7800
	1    0    0    -1  
$EndComp
$Comp
L TEST-POINT-1.25 TP1204
U 1 1 585A3C81
P 8400 9300
F 0 "TP1204" H 8390 9290 65  0001 L TNN
F 1 "DBG_1_M" H 8350 9300 60  0000 R CNN
F 2 "neo900-legacy:TP-1.25" H 8390 9090 65  0001 L TNN
F 3 "" H 8400 9300 60  0001 C CNN
	1    8400 9300
	1    0    0    -1  
$EndComp
Text GLabel 4600 9300 0    60   Input ~ 0
PWR_IND
Wire Wire Line
	4800 9100 4800 9300
Wire Wire Line
	4800 9300 4600 9300
Text Notes 4500 9800 0    60   ~ 0
Open drain,\npulled to 1.8 V
$Comp
L TEST-POINT-1.25 TP1205
U 1 1 585A4856
P 9600 7800
F 0 "TP1205" H 9590 7790 65  0001 L TNN
F 1 "DBG_2_P" H 9550 7800 60  0000 R CNN
F 2 "neo900-legacy:TP-1.25" H 9590 7590 65  0001 L TNN
F 3 "" H 9600 7800 60  0001 C CNN
	1    9600 7800
	1    0    0    -1  
$EndComp
$Comp
L TEST-POINT-1.25 TP1207
U 1 1 585A48C1
P 10800 7800
F 0 "TP1207" H 10790 7790 65  0001 L TNN
F 1 "DBG_3_P" H 10750 7800 60  0000 R CNN
F 2 "neo900-legacy:TP-1.25" H 10790 7590 65  0001 L TNN
F 3 "" H 10800 7800 60  0001 C CNN
	1    10800 7800
	1    0    0    -1  
$EndComp
$Comp
L TEST-POINT-1.25 TP1206
U 1 1 585A4A16
P 9600 9300
F 0 "TP1206" H 9590 9290 65  0001 L TNN
F 1 "DBG_2_M" H 9550 9300 60  0000 R CNN
F 2 "neo900-legacy:TP-1.25" H 9590 9090 65  0001 L TNN
F 3 "" H 9600 9300 60  0001 C CNN
	1    9600 9300
	1    0    0    -1  
$EndComp
$Comp
L TEST-POINT-1.25 TP1208
U 1 1 585A4B26
P 10800 9300
F 0 "TP1208" H 10790 9290 65  0001 L TNN
F 1 "DBG_3_M" H 10750 9300 60  0000 R CNN
F 2 "neo900-legacy:TP-1.25" H 10790 9090 65  0001 L TNN
F 3 "" H 10800 9300 60  0001 C CNN
	1    10800 9300
	1    0    0    -1  
$EndComp
Wire Wire Line
	8400 8000 8400 7800
Wire Wire Line
	9600 8000 9600 7800
Wire Wire Line
	10800 8000 10800 7800
Wire Wire Line
	10800 9100 10800 9300
Wire Wire Line
	9600 9100 9600 9300
Wire Wire Line
	8400 9100 8400 9300
Text Notes 4200 10300 0    60   ~ 0
LTST-S270KxKT colors (e.g., KRKT = red) to be selected later.
Text Notes 3600 7450 0    120  ~ 0
Hardware debugging LEDs
Text Notes 4200 10650 0    60   ~ 0
The debugging LEDs should be placed on the front edge of S2\n(top of LOWER), centered around the space bar.
Text Notes 8700 9700 0    60   ~ 0
For ad hoc assignment during testing.
$EndSCHEMATC