EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8
Sheet 2 10
Title "Nokia 3210 retrofit LTE power supply"
Date "2020-07-09"
Rev "A"
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Battery_Management:LTC4060EFE U3
U 1 1 5F0D763A
P 2850 2450
F 0 "U3" H 2900 3100 50  0000 L CNN
F 1 "LTC4060EFE" H 2900 3000 50  0000 L CNN
F 2 "Package_SO:TSSOP-16-1EP_4.4x5mm_P0.65mm" H 2850 1750 50  0001 C CNN
F 3 "https://www.analog.com/media/en/technical-documentation/data-sheets/405442xf.pdf" H 2950 2350 50  0001 C CNN
	1    2850 2450
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR013
U 1 1 5F0D7F37
P 2850 3250
F 0 "#PWR013" H 2850 3000 50  0001 C CNN
F 1 "GND" H 2855 3077 50  0000 C CNN
F 2 "" H 2850 3250 50  0001 C CNN
F 3 "" H 2850 3250 50  0001 C CNN
	1    2850 3250
	1    0    0    -1  
$EndComp
Wire Wire Line
	2850 3050 2850 3150
Wire Wire Line
	2950 3050 2950 3150
Wire Wire Line
	2950 3150 2850 3150
Connection ~ 2850 3150
Wire Wire Line
	2850 3150 2850 3250
Wire Wire Line
	2850 1850 2850 1600
$Comp
L Device:R_US R5
U 1 1 5F0DB3D9
P 2200 1800
F 0 "R5" V 2100 1750 50  0000 L CNN
F 1 "390k" V 2300 1700 50  0000 L CNN
F 2 "Resistors_SMD:R_0805_HandSoldering" V 2240 1790 50  0001 C CNN
F 3 "~" H 2200 1800 50  0001 C CNN
	1    2200 1800
	1    0    0    -1  
$EndComp
Wire Wire Line
	2200 1950 2200 2050
Wire Wire Line
	2200 2050 2350 2050
Wire Wire Line
	2200 1650 2200 1600
Text GLabel 2200 1600 1    50   Input ~ 0
Charger+
Text GLabel 2850 1600 1    50   Input ~ 0
Charger+
Wire Wire Line
	2350 2850 2300 2850
$Comp
L power:GND #PWR010
U 1 1 5F0DE05B
P 2150 3200
F 0 "#PWR010" H 2150 2950 50  0001 C CNN
F 1 "GND" H 2155 3027 50  0000 C CNN
F 2 "" H 2150 3200 50  0001 C CNN
F 3 "" H 2150 3200 50  0001 C CNN
	1    2150 3200
	1    0    0    -1  
$EndComp
Wire Wire Line
	2350 2750 2150 2750
Wire Wire Line
	2150 2750 2150 3200
$Comp
L power:GND #PWR020
U 1 1 5F0DEB2B
P 3450 2950
F 0 "#PWR020" H 3450 2700 50  0001 C CNN
F 1 "GND" H 3455 2777 50  0000 C CNN
F 2 "" H 3450 2950 50  0001 C CNN
F 3 "" H 3450 2950 50  0001 C CNN
	1    3450 2950
	1    0    0    -1  
$EndComp
Wire Wire Line
	3350 2850 3450 2850
Wire Wire Line
	3450 2850 3450 2950
$Comp
L Device:C C9
U 1 1 5F0E0646
P 3650 2950
F 0 "C9" V 3700 2790 50  0000 L CNN
F 1 "1.5nF" V 3690 3010 50  0000 L CNN
F 2 "Capacitors_SMD:C_0805_HandSoldering" H 3688 2800 50  0001 C CNN
F 3 "~" H 3650 2950 50  0001 C CNN
	1    3650 2950
	1    0    0    -1  
$EndComp
Wire Wire Line
	3350 2750 3650 2750
Wire Wire Line
	3650 2750 3650 2800
$Comp
L power:GND #PWR021
U 1 1 5F0E0FE7
P 3650 3150
F 0 "#PWR021" H 3650 2900 50  0001 C CNN
F 1 "GND" H 3655 2977 50  0000 C CNN
F 2 "" H 3650 3150 50  0001 C CNN
F 3 "" H 3650 3150 50  0001 C CNN
	1    3650 3150
	1    0    0    -1  
$EndComp
Wire Wire Line
	3650 3100 3650 3150
Wire Wire Line
	2350 2650 2000 2650
Wire Wire Line
	2000 2650 2000 2750
$Comp
L power:GND #PWR07
U 1 1 5F0E4844
P 2000 3200
F 0 "#PWR07" H 2000 2950 50  0001 C CNN
F 1 "GND" H 2005 3027 50  0000 C CNN
F 2 "" H 2000 3200 50  0001 C CNN
F 3 "" H 2000 3200 50  0001 C CNN
	1    2000 3200
	1    0    0    -1  
$EndComp
Wire Wire Line
	2000 3150 2000 3200
Wire Wire Line
	2000 2750 1900 2750
Connection ~ 2000 2750
Wire Wire Line
	2000 2750 2000 2850
Wire Wire Line
	2200 2050 2100 2050
Connection ~ 2200 2050
Wire Wire Line
	2350 2150 2100 2150
$Comp
L Device:R_US R3
U 1 1 5F0ED31F
P 1700 2500
F 0 "R3" V 1600 2350 50  0000 L CNN
F 1 "576" V 1600 2500 50  0000 L CNN
F 2 "Resistors_SMD:R_0805_HandSoldering" V 1740 2490 50  0001 C CNN
F 3 "~" H 1700 2500 50  0001 C CNN
	1    1700 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	2350 2350 1700 2350
Wire Wire Line
	2350 2550 1850 2550
Wire Wire Line
	1850 2550 1850 2650
Wire Wire Line
	1850 2650 1700 2650
$Comp
L Device:R_US R2
U 1 1 5F0EFBC7
P 1450 2500
F 0 "R2" V 1350 2350 50  0000 L CNN
F 1 "2.21k" V 1350 2500 50  0000 L CNN
F 2 "Resistors_SMD:R_0805_HandSoldering" V 1490 2490 50  0001 C CNN
F 3 "~" H 1450 2500 50  0001 C CNN
	1    1450 2500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR04
U 1 1 5F0F133E
P 1450 2700
F 0 "#PWR04" H 1450 2450 50  0001 C CNN
F 1 "GND" H 1455 2527 50  0000 C CNN
F 2 "" H 1450 2700 50  0001 C CNN
F 3 "" H 1450 2700 50  0001 C CNN
	1    1450 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	1450 2650 1450 2700
Wire Wire Line
	1450 2350 1700 2350
Connection ~ 1700 2350
$Comp
L Device:R_US R1
U 1 1 5F0F3974
P 1100 2050
F 0 "R1" V 1000 1900 50  0000 L CNN
F 1 "4.42k" V 1000 2050 50  0000 L CNN
F 2 "Resistors_SMD:R_0805_HandSoldering" V 1140 2040 50  0001 C CNN
F 3 "~" H 1100 2050 50  0001 C CNN
	1    1100 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	1100 2200 1100 2250
Wire Wire Line
	1100 2250 2350 2250
Wire Wire Line
	1100 1900 1100 1800
Text GLabel 1100 1800 1    50   Input ~ 0
Charger+
$Comp
L Device:Thermistor_NTC_US TH1
U 1 1 5F0F95C2
P 1100 2500
F 0 "TH1" V 950 2300 50  0000 L CNN
F 1 "10k" V 1200 2600 50  0000 C CNN
F 2 "" H 1100 2550 50  0001 C CNN
F 3 "~" H 1100 2550 50  0001 C CNN
	1    1100 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	1100 2250 1100 2350
Connection ~ 1100 2250
$Comp
L power:GND #PWR01
U 1 1 5F0FF677
P 1100 2700
F 0 "#PWR01" H 1100 2450 50  0001 C CNN
F 1 "GND" H 1105 2527 50  0000 C CNN
F 2 "" H 1100 2700 50  0001 C CNN
F 3 "" H 1100 2700 50  0001 C CNN
	1    1100 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	1100 2700 1100 2650
$Comp
L Device:Q_NPN_BCEC Q1
U 1 1 5F1026D4
P 3750 2350
F 0 "Q1" H 3950 2300 50  0000 L CNN
F 1 "MJD210-DPAK" H 3950 2400 50  0000 L CNN
F 2 "" H 3950 2450 50  0001 C CNN
F 3 "~" H 3750 2350 50  0001 C CNN
	1    3750 2350
	1    0    0    1   
$EndComp
$Comp
L Device:C C10
U 1 1 5F1083DC
P 3850 2950
F 0 "C10" V 3900 2790 50  0000 L CNN
F 1 "10uF" V 3890 3010 50  0000 L CNN
F 2 "" H 3888 2800 50  0001 C CNN
F 3 "~" H 3850 2950 50  0001 C CNN
	1    3850 2950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR022
U 1 1 5F10A058
P 3850 3150
F 0 "#PWR022" H 3850 2900 50  0001 C CNN
F 1 "GND" H 3855 2977 50  0000 C CNN
F 2 "" H 3850 3150 50  0001 C CNN
F 3 "" H 3850 3150 50  0001 C CNN
	1    3850 3150
	1    0    0    -1  
$EndComp
Wire Wire Line
	3850 3100 3850 3150
Wire Wire Line
	3350 2550 3850 2550
Connection ~ 3850 2550
Wire Wire Line
	3850 2550 3850 2800
Wire Wire Line
	3350 2350 3550 2350
Wire Wire Line
	3350 2150 3850 2150
Wire Wire Line
	3850 2550 3950 2550
Connection ~ 3950 2550
Wire Wire Line
	3950 2550 4050 2550
Text GLabel 4050 2550 2    50   Output ~ 0
BAT+
Wire Wire Line
	3350 2050 3450 2050
Wire Wire Line
	2300 2850 2300 2950
Text GLabel 2300 2950 3    50   Input ~ 0
Charger+
$Comp
L Device:R_US R4
U 1 1 5F0E3FBE
P 2000 3000
F 0 "R4" V 1910 2870 50  0000 L CNN
F 1 "68k" V 1910 3010 50  0000 L CNN
F 2 "Resistors_SMD:R_0805_HandSoldering" V 2040 2990 50  0001 C CNN
F 3 "~" H 2000 3000 50  0001 C CNN
	1    2000 3000
	1    0    0    -1  
$EndComp
$Comp
L nokia3210-retrofit-lte:RT4812 U6
U 1 1 5F12EE54
P 7050 1750
F 0 "U6" H 7050 2266 50  0000 C CNN
F 1 "RT4812" H 7050 2175 50  0000 C CNN
F 2 "" H 7050 1750 50  0001 C CNN
F 3 "" H 7050 1750 50  0001 C CNN
	1    7050 1750
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR041
U 1 1 5F130382
P 7050 2300
F 0 "#PWR041" H 7050 2050 50  0001 C CNN
F 1 "GND" H 7055 2127 50  0000 C CNN
F 2 "" H 7050 2300 50  0001 C CNN
F 3 "" H 7050 2300 50  0001 C CNN
	1    7050 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7050 2200 7050 2250
Wire Wire Line
	7250 2200 7250 2250
Wire Wire Line
	7250 2250 7050 2250
Connection ~ 7050 2250
Wire Wire Line
	7050 2250 7050 2300
$Comp
L Device:R_US R7
U 1 1 5F133E58
P 7750 1700
F 0 "R7" V 7650 1650 50  0000 L CNN
F 1 "715k" V 7850 1600 50  0000 L CNN
F 2 "Resistors_SMD:R_0805_HandSoldering" V 7790 1690 50  0001 C CNN
F 3 "~" H 7750 1700 50  0001 C CNN
	1    7750 1700
	1    0    0    -1  
$EndComp
$Comp
L Device:R_US R8
U 1 1 5F135441
P 7750 2100
F 0 "R8" V 7650 2050 50  0000 L CNN
F 1 "102k" V 7850 2000 50  0000 L CNN
F 2 "Resistors_SMD:R_0805_HandSoldering" V 7790 2090 50  0001 C CNN
F 3 "~" H 7750 2100 50  0001 C CNN
	1    7750 2100
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR042
U 1 1 5F135ADC
P 7750 2300
F 0 "#PWR042" H 7750 2050 50  0001 C CNN
F 1 "GND" H 7755 2127 50  0000 C CNN
F 2 "" H 7750 2300 50  0001 C CNN
F 3 "" H 7750 2300 50  0001 C CNN
	1    7750 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	7500 1500 7750 1500
Wire Wire Line
	7750 1500 7750 1550
Wire Wire Line
	7750 1850 7750 1900
Wire Wire Line
	7750 2250 7750 2300
Wire Wire Line
	7750 1900 7550 1900
Wire Wire Line
	7550 1900 7550 1700
Wire Wire Line
	7550 1700 7500 1700
Connection ~ 7750 1900
Wire Wire Line
	7750 1900 7750 1950
$Comp
L Device:L L1
U 1 1 5F13D564
P 6350 1500
F 0 "L1" V 6420 1500 50  0000 C CNN
F 1 "1.5uH" V 6300 1500 50  0000 C CNN
F 2 "" H 6350 1500 50  0001 C CNN
F 3 "~" H 6350 1500 50  0001 C CNN
	1    6350 1500
	0    -1   -1   0   
$EndComp
$Comp
L Device:C C13
U 1 1 5F13EFB4
P 6000 1750
F 0 "C13" V 6050 1590 50  0000 L CNN
F 1 "22uF" V 6040 1810 50  0000 L CNN
F 2 "" H 6038 1600 50  0001 C CNN
F 3 "~" H 6000 1750 50  0001 C CNN
	1    6000 1750
	1    0    0    -1  
$EndComp
$Comp
L Device:CP1 C24
U 1 1 5F1401D1
P 8100 1700
F 0 "C24" V 7950 1650 50  0000 L CNN
F 1 "470uF" V 8250 1600 50  0000 L CNN
F 2 "" H 8100 1700 50  0001 C CNN
F 3 "~" H 8100 1700 50  0001 C CNN
	1    8100 1700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR044
U 1 1 5F142294
P 8100 1900
F 0 "#PWR044" H 8100 1650 50  0001 C CNN
F 1 "GND" H 8105 1727 50  0000 C CNN
F 2 "" H 8100 1900 50  0001 C CNN
F 3 "" H 8100 1900 50  0001 C CNN
	1    8100 1900
	1    0    0    -1  
$EndComp
Wire Wire Line
	7750 1500 8100 1500
Wire Wire Line
	8100 1500 8100 1550
Connection ~ 7750 1500
Connection ~ 8100 1500
Wire Wire Line
	8100 1850 8100 1900
$Comp
L power:GND #PWR030
U 1 1 5F149676
P 6000 1950
F 0 "#PWR030" H 6000 1700 50  0001 C CNN
F 1 "GND" H 6005 1777 50  0000 C CNN
F 2 "" H 6000 1950 50  0001 C CNN
F 3 "" H 6000 1950 50  0001 C CNN
	1    6000 1950
	1    0    0    -1  
$EndComp
Wire Wire Line
	6000 1900 6000 1950
Wire Wire Line
	6000 1600 6000 1500
Wire Wire Line
	6000 1500 6200 1500
Wire Wire Line
	6500 1500 6600 1500
$Comp
L Device:R_US R6
U 1 1 5F14D3BD
P 6500 2200
F 0 "R6" V 6400 2150 50  0000 L CNN
F 1 "100k" V 6600 2100 50  0000 L CNN
F 2 "Resistors_SMD:R_0805_HandSoldering" V 6540 2190 50  0001 C CNN
F 3 "~" H 6500 2200 50  0001 C CNN
	1    6500 2200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR036
U 1 1 5F14DDE6
P 6500 2400
F 0 "#PWR036" H 6500 2150 50  0001 C CNN
F 1 "GND" H 6505 2227 50  0000 C CNN
F 2 "" H 6500 2400 50  0001 C CNN
F 3 "" H 6500 2400 50  0001 C CNN
	1    6500 2400
	1    0    0    -1  
$EndComp
Wire Wire Line
	6600 1900 6500 1900
Wire Wire Line
	6500 1900 6500 2000
Wire Wire Line
	6600 2000 6500 2000
Connection ~ 6500 2000
Wire Wire Line
	6500 2000 6500 2050
Wire Wire Line
	6500 1900 6450 1900
Connection ~ 6500 1900
Text GLabel 6450 1900 0    50   Input ~ 0
BAT+
Wire Wire Line
	6600 1700 6150 1700
Wire Wire Line
	6150 1700 6150 2200
Wire Wire Line
	6150 2200 5850 2200
Wire Wire Line
	5850 2200 5850 1500
Wire Wire Line
	5850 1500 6000 1500
Connection ~ 6000 1500
Wire Wire Line
	5850 1500 5750 1500
Connection ~ 5850 1500
Text GLabel 5750 1500 0    50   Input ~ 0
BAT+
Wire Wire Line
	6500 2350 6500 2400
$Comp
L power:+3V8 #PWR048
U 1 1 5F15E3EE
P 9150 1500
F 0 "#PWR048" H 9150 1350 50  0001 C CNN
F 1 "+3V8" V 9165 1628 50  0000 L CNN
F 2 "" H 9150 1500 50  0001 C CNN
F 3 "" H 9150 1500 50  0001 C CNN
	1    9150 1500
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR09
U 1 1 5F254051
P 2050 6450
F 0 "#PWR09" H 2050 6200 50  0001 C CNN
F 1 "GND" H 2055 6277 50  0000 C CNN
F 2 "" H 2050 6450 50  0001 C CNN
F 3 "" H 2050 6450 50  0001 C CNN
	1    2050 6450
	1    0    0    -1  
$EndComp
$Comp
L Device:C C2
U 1 1 5F254057
P 1500 6250
F 0 "C2" V 1550 6050 50  0000 L CNN
F 1 "1uF" V 1540 6310 50  0000 L CNN
F 2 "" H 1538 6100 50  0001 C CNN
F 3 "~" H 1500 6250 50  0001 C CNN
	1    1500 6250
	1    0    0    -1  
$EndComp
$Comp
L Device:C C4
U 1 1 5F25405D
P 2600 6250
F 0 "C4" V 2550 6050 50  0000 L CNN
F 1 "4.7uF" V 2750 6150 50  0000 L CNN
F 2 "" H 2638 6100 50  0001 C CNN
F 3 "~" H 2600 6250 50  0001 C CNN
	1    2600 6250
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR06
U 1 1 5F254063
P 1500 6450
F 0 "#PWR06" H 1500 6200 50  0001 C CNN
F 1 "GND" H 1505 6277 50  0000 C CNN
F 2 "" H 1500 6450 50  0001 C CNN
F 3 "" H 1500 6450 50  0001 C CNN
	1    1500 6450
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR012
U 1 1 5F254069
P 2600 6450
F 0 "#PWR012" H 2600 6200 50  0001 C CNN
F 1 "GND" H 2605 6277 50  0000 C CNN
F 2 "" H 2600 6450 50  0001 C CNN
F 3 "" H 2600 6450 50  0001 C CNN
	1    2600 6450
	1    0    0    -1  
$EndComp
Wire Wire Line
	2050 6350 2050 6450
Wire Wire Line
	1500 6400 1500 6450
Wire Wire Line
	2600 6400 2600 6450
Wire Wire Line
	2600 6100 2600 6000
Wire Wire Line
	2600 6000 2450 6000
Wire Wire Line
	1650 6000 1500 6000
Wire Wire Line
	1500 6000 1500 6100
Wire Wire Line
	1500 6000 1400 6000
Connection ~ 1500 6000
Connection ~ 2600 6000
$Comp
L power:+3V8 #PWR03
U 1 1 5F25407A
P 1400 6000
F 0 "#PWR03" H 1400 5850 50  0001 C CNN
F 1 "+3V8" V 1415 6128 50  0000 L CNN
F 2 "" H 1400 6000 50  0001 C CNN
F 3 "" H 1400 6000 50  0001 C CNN
	1    1400 6000
	0    -1   -1   0   
$EndComp
$Comp
L nokia3210-retrofit-lte:AP2120N-1.8 U2
U 1 1 5F25ACAF
P 2050 6100
F 0 "U2" H 2050 6466 50  0000 C CNN
F 1 "AP2120N-1.8" H 2050 6375 50  0000 C CNN
F 2 "" H 2050 6100 50  0001 C CNN
F 3 "" H 2050 6100 50  0001 C CNN
	1    2050 6100
	1    0    0    -1  
$EndComp
$Comp
L power:+1V8 #PWR019
U 1 1 5F25B420
P 3400 6000
F 0 "#PWR019" H 3400 5850 50  0001 C CNN
F 1 "+1V8" V 3415 6128 50  0000 L CNN
F 2 "" H 3400 6000 50  0001 C CNN
F 3 "" H 3400 6000 50  0001 C CNN
	1    3400 6000
	0    1    1    0   
$EndComp
Wire Wire Line
	8100 1500 8550 1500
Text Notes 1000 1150 0    60   ~ 0
NiMH charger circuit
Text Notes 5550 1150 0    60   ~ 0
Step-up 3.8V converter
$Comp
L Device:CP1 C29
U 1 1 5FCEB570
P 9000 1700
F 0 "C29" V 8850 1650 50  0000 L CNN
F 1 "100nF" V 9150 1600 50  0000 L CNN
F 2 "" H 9000 1700 50  0001 C CNN
F 3 "~" H 9000 1700 50  0001 C CNN
	1    9000 1700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR047
U 1 1 5FCEBD0F
P 9000 1900
F 0 "#PWR047" H 9000 1650 50  0001 C CNN
F 1 "GND" H 9005 1727 50  0000 C CNN
F 2 "" H 9000 1900 50  0001 C CNN
F 3 "" H 9000 1900 50  0001 C CNN
	1    9000 1900
	1    0    0    -1  
$EndComp
Wire Wire Line
	9000 1550 9000 1500
Connection ~ 9000 1500
Wire Wire Line
	9000 1500 9150 1500
Wire Wire Line
	9000 1850 9000 1900
Text Notes 1000 3600 0    45   ~ 0
1. Charger+ connected to external DC connector through RF choke\n2. Thermistor should be located next to NiMH battery
Text GLabel 2100 2050 0    45   Input ~ 0
#SHDN
Text GLabel 2100 2150 0    45   Output ~ 0
#CHARGE
Text GLabel 1900 2750 0    45   Input ~ 0
PAUSE
Text GLabel 3450 2050 2    45   Output ~ 0
#ACP
$Comp
L power:+3V8 #PWR027
U 1 1 5FD89B6C
P 5500 3150
F 0 "#PWR027" H 5500 3000 50  0001 C CNN
F 1 "+3V8" V 5515 3278 50  0000 L CNN
F 2 "" H 5500 3150 50  0001 C CNN
F 3 "" H 5500 3150 50  0001 C CNN
	1    5500 3150
	0    -1   -1   0   
$EndComp
Text GLabel 7100 3150 2    45   Output ~ 0
VBAT_RF
Connection ~ 6950 3150
Wire Wire Line
	6950 3150 7100 3150
Connection ~ 5650 3150
Wire Wire Line
	5500 3150 5650 3150
Connection ~ 6000 3150
Wire Wire Line
	5650 3150 5650 3300
Wire Wire Line
	6000 3150 5650 3150
Connection ~ 6350 3150
Wire Wire Line
	6000 3150 6000 3300
Wire Wire Line
	6350 3150 6000 3150
Wire Wire Line
	6650 3150 6350 3150
Connection ~ 6650 3150
Wire Wire Line
	6650 3350 6650 3150
Wire Wire Line
	6350 3150 6350 3350
Wire Wire Line
	6950 3150 6650 3150
Wire Wire Line
	6950 3350 6950 3150
Wire Wire Line
	6350 3900 6350 3800
$Comp
L power:GND #PWR033
U 1 1 5FD717D5
P 6350 3900
F 0 "#PWR033" H 6350 3650 50  0001 C CNN
F 1 "GND" H 6355 3727 50  0000 C CNN
F 2 "" H 6350 3900 50  0001 C CNN
F 3 "" H 6350 3900 50  0001 C CNN
	1    6350 3900
	1    0    0    -1  
$EndComp
Wire Wire Line
	6650 3650 6650 3800
Wire Wire Line
	6650 3800 6350 3800
Connection ~ 6650 3800
Wire Wire Line
	6350 3800 6000 3800
Connection ~ 6350 3800
Wire Wire Line
	6350 3650 6350 3800
Wire Wire Line
	6000 3800 5650 3800
Connection ~ 6000 3800
Wire Wire Line
	6000 3600 6000 3800
Wire Wire Line
	5650 3800 5650 3600
Wire Wire Line
	6950 3800 6650 3800
Wire Wire Line
	6950 3650 6950 3800
$Comp
L Device:C C23
U 1 1 5FD5F955
P 6950 3500
F 0 "C23" V 7000 3340 50  0000 L CNN
F 1 "10pF" V 6990 3560 50  0000 L CNN
F 2 "" H 6988 3350 50  0001 C CNN
F 3 "~" H 6950 3500 50  0001 C CNN
	1    6950 3500
	1    0    0    -1  
$EndComp
$Comp
L Device:C C20
U 1 1 5FD5F3DD
P 6650 3500
F 0 "C20" V 6700 3340 50  0000 L CNN
F 1 "33pF" V 6690 3560 50  0000 L CNN
F 2 "" H 6688 3350 50  0001 C CNN
F 3 "~" H 6650 3500 50  0001 C CNN
	1    6650 3500
	1    0    0    -1  
$EndComp
$Comp
L Device:C C17
U 1 1 5FD5EA64
P 6350 3500
F 0 "C17" V 6300 3550 50  0000 L CNN
F 1 "100nF" V 6390 3560 50  0000 L CNN
F 2 "" H 6388 3350 50  0001 C CNN
F 3 "~" H 6350 3500 50  0001 C CNN
	1    6350 3500
	1    0    0    -1  
$EndComp
$Comp
L Device:D_Zener D1
U 1 1 5FD58F38
P 5650 3450
F 0 "D1" H 5600 3350 50  0000 L CNN
F 1 "MMSZ5231BT1G" H 5350 3550 50  0000 L CNN
F 2 "" H 5650 3450 50  0001 C CNN
F 3 "~" H 5650 3450 50  0001 C CNN
	1    5650 3450
	0    1    1    0   
$EndComp
$Comp
L Device:CP1 C14
U 1 1 5FD539F5
P 6000 3450
F 0 "C14" V 5850 3400 50  0000 L CNN
F 1 "100uF" V 6150 3350 50  0000 L CNN
F 2 "" H 6000 3450 50  0001 C CNN
F 3 "~" H 6000 3450 50  0001 C CNN
	1    6000 3450
	1    0    0    -1  
$EndComp
Connection ~ 9150 3150
Wire Wire Line
	9150 3150 9300 3150
Connection ~ 8200 3150
Connection ~ 8550 3150
Wire Wire Line
	8200 3150 8200 3300
Wire Wire Line
	8550 3150 8200 3150
Wire Wire Line
	8850 3150 8550 3150
Connection ~ 8850 3150
Wire Wire Line
	8850 3350 8850 3150
Wire Wire Line
	8550 3150 8550 3350
Wire Wire Line
	9150 3150 8850 3150
Wire Wire Line
	9150 3350 9150 3150
Wire Wire Line
	8550 3900 8550 3800
$Comp
L power:GND #PWR046
U 1 1 5FDD43B9
P 8550 3900
F 0 "#PWR046" H 8550 3650 50  0001 C CNN
F 1 "GND" H 8555 3727 50  0000 C CNN
F 2 "" H 8550 3900 50  0001 C CNN
F 3 "" H 8550 3900 50  0001 C CNN
	1    8550 3900
	1    0    0    -1  
$EndComp
Wire Wire Line
	8850 3650 8850 3800
Wire Wire Line
	8850 3800 8550 3800
Connection ~ 8850 3800
Wire Wire Line
	8550 3800 8200 3800
Connection ~ 8550 3800
Wire Wire Line
	8550 3650 8550 3800
Wire Wire Line
	8200 3600 8200 3800
Wire Wire Line
	9150 3800 8850 3800
Wire Wire Line
	9150 3650 9150 3800
$Comp
L Device:C C30
U 1 1 5FDD43CB
P 9150 3500
F 0 "C30" V 9200 3340 50  0000 L CNN
F 1 "10pF" V 9190 3560 50  0000 L CNN
F 2 "" H 9188 3350 50  0001 C CNN
F 3 "~" H 9150 3500 50  0001 C CNN
	1    9150 3500
	1    0    0    -1  
$EndComp
$Comp
L Device:C C28
U 1 1 5FDD43D1
P 8850 3500
F 0 "C28" V 8900 3340 50  0000 L CNN
F 1 "33pF" V 8890 3560 50  0000 L CNN
F 2 "" H 8888 3350 50  0001 C CNN
F 3 "~" H 8850 3500 50  0001 C CNN
	1    8850 3500
	1    0    0    -1  
$EndComp
$Comp
L Device:C C27
U 1 1 5FDD43D7
P 8550 3500
F 0 "C27" V 8500 3550 50  0000 L CNN
F 1 "100nF" V 8590 3560 50  0000 L CNN
F 2 "" H 8588 3350 50  0001 C CNN
F 3 "~" H 8550 3500 50  0001 C CNN
	1    8550 3500
	1    0    0    -1  
$EndComp
$Comp
L Device:CP1 C25
U 1 1 5FDD43E3
P 8200 3450
F 0 "C25" V 8050 3400 50  0000 L CNN
F 1 "100uF" V 8350 3350 50  0000 L CNN
F 2 "" H 8200 3450 50  0001 C CNN
F 3 "~" H 8200 3450 50  0001 C CNN
	1    8200 3450
	1    0    0    -1  
$EndComp
Wire Wire Line
	8050 3150 8200 3150
$Comp
L power:+3V8 #PWR043
U 1 1 5FDD98CE
P 8050 3150
F 0 "#PWR043" H 8050 3000 50  0001 C CNN
F 1 "+3V8" V 8065 3278 50  0000 L CNN
F 2 "" H 8050 3150 50  0001 C CNN
F 3 "" H 8050 3150 50  0001 C CNN
	1    8050 3150
	0    -1   -1   0   
$EndComp
Text GLabel 9300 3150 2    45   Output ~ 0
VBAT_BB
$Comp
L Device:CP1 C26
U 1 1 5FE10E62
P 8550 1700
F 0 "C26" V 8400 1650 50  0000 L CNN
F 1 "470uF" V 8700 1600 50  0000 L CNN
F 2 "" H 8550 1700 50  0001 C CNN
F 3 "~" H 8550 1700 50  0001 C CNN
	1    8550 1700
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR045
U 1 1 5FE114F0
P 8550 1900
F 0 "#PWR045" H 8550 1650 50  0001 C CNN
F 1 "GND" H 8555 1727 50  0000 C CNN
F 2 "" H 8550 1900 50  0001 C CNN
F 3 "" H 8550 1900 50  0001 C CNN
	1    8550 1900
	1    0    0    -1  
$EndComp
Wire Wire Line
	8550 1550 8550 1500
Connection ~ 8550 1500
Wire Wire Line
	8550 1500 9000 1500
Wire Wire Line
	8550 1850 8550 1900
Text Notes 5550 2800 0    45   ~ 0
1. Input voltage from NiMH battery 2.0-2.4V
$Comp
L Device:C C6
U 1 1 5FE89DFA
P 2950 6250
F 0 "C6" V 2900 6100 50  0000 L CNN
F 1 "100nF" V 3100 6150 50  0000 L CNN
F 2 "" H 2988 6100 50  0001 C CNN
F 3 "~" H 2950 6250 50  0001 C CNN
	1    2950 6250
	1    0    0    -1  
$EndComp
$Comp
L Device:C C8
U 1 1 5FE8A623
P 3300 6250
F 0 "C8" V 3250 6100 50  0000 L CNN
F 1 "33pF" V 3450 6150 50  0000 L CNN
F 2 "" H 3338 6100 50  0001 C CNN
F 3 "~" H 3300 6250 50  0001 C CNN
	1    3300 6250
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR015
U 1 1 5FE8ABED
P 2950 6450
F 0 "#PWR015" H 2950 6200 50  0001 C CNN
F 1 "GND" H 2955 6277 50  0000 C CNN
F 2 "" H 2950 6450 50  0001 C CNN
F 3 "" H 2950 6450 50  0001 C CNN
	1    2950 6450
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR017
U 1 1 5FE8B016
P 3300 6450
F 0 "#PWR017" H 3300 6200 50  0001 C CNN
F 1 "GND" H 3305 6277 50  0000 C CNN
F 2 "" H 3300 6450 50  0001 C CNN
F 3 "" H 3300 6450 50  0001 C CNN
	1    3300 6450
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 6100 3300 6000
Connection ~ 3300 6000
Wire Wire Line
	3300 6000 3400 6000
Wire Wire Line
	2950 6100 2950 6000
Wire Wire Line
	2600 6000 2950 6000
Connection ~ 2950 6000
Wire Wire Line
	2950 6000 3300 6000
Wire Wire Line
	2950 6400 2950 6450
Wire Wire Line
	3300 6400 3300 6450
$Comp
L power:GND #PWR08
U 1 1 5F1884E2
P 2050 4950
F 0 "#PWR08" H 2050 4700 50  0001 C CNN
F 1 "GND" H 2055 4777 50  0000 C CNN
F 2 "" H 2050 4950 50  0001 C CNN
F 3 "" H 2050 4950 50  0001 C CNN
	1    2050 4950
	1    0    0    -1  
$EndComp
$Comp
L Device:C C1
U 1 1 5F189465
P 1500 4750
F 0 "C1" V 1550 4590 50  0000 L CNN
F 1 "1uF" V 1540 4810 50  0000 L CNN
F 2 "" H 1538 4600 50  0001 C CNN
F 3 "~" H 1500 4750 50  0001 C CNN
	1    1500 4750
	1    0    0    -1  
$EndComp
$Comp
L Device:C C3
U 1 1 5F189E1C
P 2600 4750
F 0 "C3" V 2550 4600 50  0000 L CNN
F 1 "4.7uF" V 2750 4650 50  0000 L CNN
F 2 "" H 2638 4600 50  0001 C CNN
F 3 "~" H 2600 4750 50  0001 C CNN
	1    2600 4750
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR05
U 1 1 5F18B4A2
P 1500 4950
F 0 "#PWR05" H 1500 4700 50  0001 C CNN
F 1 "GND" H 1505 4777 50  0000 C CNN
F 2 "" H 1500 4950 50  0001 C CNN
F 3 "" H 1500 4950 50  0001 C CNN
	1    1500 4950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR011
U 1 1 5F18B7DA
P 2600 4950
F 0 "#PWR011" H 2600 4700 50  0001 C CNN
F 1 "GND" H 2605 4777 50  0000 C CNN
F 2 "" H 2600 4950 50  0001 C CNN
F 3 "" H 2600 4950 50  0001 C CNN
	1    2600 4950
	1    0    0    -1  
$EndComp
Wire Wire Line
	2050 4850 2050 4950
Wire Wire Line
	1500 4900 1500 4950
Wire Wire Line
	2600 4900 2600 4950
Wire Wire Line
	2600 4600 2600 4500
Wire Wire Line
	2600 4500 2450 4500
Wire Wire Line
	1650 4500 1500 4500
Wire Wire Line
	1500 4500 1500 4600
Wire Wire Line
	1500 4500 1400 4500
Connection ~ 1500 4500
Wire Wire Line
	2600 4500 2950 4500
Connection ~ 2600 4500
$Comp
L power:+3V8 #PWR02
U 1 1 5F19A12A
P 1400 4500
F 0 "#PWR02" H 1400 4350 50  0001 C CNN
F 1 "+3V8" V 1415 4628 50  0000 L CNN
F 2 "" H 1400 4500 50  0001 C CNN
F 3 "" H 1400 4500 50  0001 C CNN
	1    1400 4500
	0    -1   -1   0   
$EndComp
$Comp
L power:+3V3 #PWR018
U 1 1 5F19A91E
P 3400 4500
F 0 "#PWR018" H 3400 4350 50  0001 C CNN
F 1 "+3V3" V 3415 4628 50  0000 L CNN
F 2 "" H 3400 4500 50  0001 C CNN
F 3 "" H 3400 4500 50  0001 C CNN
	1    3400 4500
	0    1    1    0   
$EndComp
$Comp
L nokia3210-retrofit-lte:AP2120N-3.3 U1
U 1 1 5F2596D7
P 2050 4600
F 0 "U1" H 2050 4966 50  0000 C CNN
F 1 "AP2120N-3.3" H 2050 4875 50  0000 C CNN
F 2 "" H 2050 4600 50  0001 C CNN
F 3 "" H 2050 4600 50  0001 C CNN
	1    2050 4600
	1    0    0    -1  
$EndComp
$Comp
L Device:C C5
U 1 1 5FE3A40D
P 2950 4750
F 0 "C5" V 2900 4600 50  0000 L CNN
F 1 "100nF" V 3100 4650 50  0000 L CNN
F 2 "" H 2988 4600 50  0001 C CNN
F 3 "~" H 2950 4750 50  0001 C CNN
	1    2950 4750
	1    0    0    -1  
$EndComp
$Comp
L Device:C C7
U 1 1 5FE3B311
P 3300 4750
F 0 "C7" V 3250 4700 50  0000 R CNN
F 1 "33pF" V 3450 4650 50  0000 L CNN
F 2 "" H 3338 4600 50  0001 C CNN
F 3 "~" H 3300 4750 50  0001 C CNN
	1    3300 4750
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR014
U 1 1 5FE3C9E8
P 2950 4950
F 0 "#PWR014" H 2950 4700 50  0001 C CNN
F 1 "GND" H 2955 4777 50  0000 C CNN
F 2 "" H 2950 4950 50  0001 C CNN
F 3 "" H 2950 4950 50  0001 C CNN
	1    2950 4950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR016
U 1 1 5FE3CD48
P 3300 4950
F 0 "#PWR016" H 3300 4700 50  0001 C CNN
F 1 "GND" H 3305 4777 50  0000 C CNN
F 2 "" H 3300 4950 50  0001 C CNN
F 3 "" H 3300 4950 50  0001 C CNN
	1    3300 4950
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 4600 3300 4500
Connection ~ 3300 4500
Wire Wire Line
	3300 4500 3400 4500
Wire Wire Line
	2950 4600 2950 4500
Connection ~ 2950 4500
Wire Wire Line
	2950 4500 3300 4500
Wire Wire Line
	2950 4900 2950 4950
Wire Wire Line
	3300 4900 3300 4950
$Comp
L Device:C C11
U 1 1 60670156
P 5000 4750
F 0 "C11" V 5050 4590 50  0000 L CNN
F 1 "1uF" V 5040 4810 50  0000 L CNN
F 2 "" H 5038 4600 50  0001 C CNN
F 3 "~" H 5000 4750 50  0001 C CNN
	1    5000 4750
	1    0    0    -1  
$EndComp
$Comp
L Device:C C15
U 1 1 6067015C
P 6100 4750
F 0 "C15" V 6050 4600 50  0000 L CNN
F 1 "4.7uF" V 6250 4650 50  0000 L CNN
F 2 "" H 6138 4600 50  0001 C CNN
F 3 "~" H 6100 4750 50  0001 C CNN
	1    6100 4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	5550 4850 5550 4950
Wire Wire Line
	5000 4900 5000 4950
Wire Wire Line
	6100 4900 6100 4950
Wire Wire Line
	6100 4600 6100 4500
Wire Wire Line
	6100 4500 5950 4500
Wire Wire Line
	5150 4500 5000 4500
Wire Wire Line
	5000 4500 5000 4600
Wire Wire Line
	5000 4500 4900 4500
Connection ~ 5000 4500
Wire Wire Line
	6100 4500 6450 4500
Connection ~ 6100 4500
$Comp
L power:+3V8 #PWR023
U 1 1 60670179
P 4900 4500
F 0 "#PWR023" H 4900 4350 50  0001 C CNN
F 1 "+3V8" V 4915 4628 50  0000 L CNN
F 2 "" H 4900 4500 50  0001 C CNN
F 3 "" H 4900 4500 50  0001 C CNN
	1    4900 4500
	0    -1   -1   0   
$EndComp
$Comp
L nokia3210-retrofit-lte:AP2120N-3.3 U4
U 1 1 60670185
P 5550 4600
F 0 "U4" H 5550 4966 50  0000 C CNN
F 1 "AP2120N-3.3" H 5550 4875 50  0000 C CNN
F 2 "" H 5550 4600 50  0001 C CNN
F 3 "" H 5550 4600 50  0001 C CNN
	1    5550 4600
	1    0    0    -1  
$EndComp
$Comp
L Device:C C18
U 1 1 6067018B
P 6450 4750
F 0 "C18" V 6400 4600 50  0000 L CNN
F 1 "100nF" V 6600 4650 50  0000 L CNN
F 2 "" H 6488 4600 50  0001 C CNN
F 3 "~" H 6450 4750 50  0001 C CNN
	1    6450 4750
	1    0    0    -1  
$EndComp
$Comp
L Device:C C21
U 1 1 60670191
P 6800 4750
F 0 "C21" V 6750 4700 50  0000 R CNN
F 1 "33pF" V 6950 4650 50  0000 L CNN
F 2 "" H 6838 4600 50  0001 C CNN
F 3 "~" H 6800 4750 50  0001 C CNN
	1    6800 4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	6800 4600 6800 4500
Connection ~ 6800 4500
Wire Wire Line
	6800 4500 6900 4500
Wire Wire Line
	6450 4600 6450 4500
Connection ~ 6450 4500
Wire Wire Line
	6450 4500 6800 4500
Wire Wire Line
	6450 4900 6450 4950
Wire Wire Line
	6800 4900 6800 4950
Text Notes 4800 4200 0    55   ~ 0
Analog 3V3
Text Notes 1300 5750 0    55   ~ 0
Digital 1V8
Text Notes 1300 4250 0    55   ~ 0
Digital 3V3
$Comp
L power:GNDA #PWR025
U 1 1 60688F52
P 5000 4950
F 0 "#PWR025" H 5000 4700 50  0001 C CNN
F 1 "GNDA" H 5005 4777 50  0000 C CNN
F 2 "" H 5000 4950 50  0001 C CNN
F 3 "" H 5000 4950 50  0001 C CNN
	1    5000 4950
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR028
U 1 1 6068BDBE
P 5550 4950
F 0 "#PWR028" H 5550 4700 50  0001 C CNN
F 1 "GNDA" H 5555 4777 50  0000 C CNN
F 2 "" H 5550 4950 50  0001 C CNN
F 3 "" H 5550 4950 50  0001 C CNN
	1    5550 4950
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR031
U 1 1 6068C1A7
P 6100 4950
F 0 "#PWR031" H 6100 4700 50  0001 C CNN
F 1 "GNDA" H 6105 4777 50  0000 C CNN
F 2 "" H 6100 4950 50  0001 C CNN
F 3 "" H 6100 4950 50  0001 C CNN
	1    6100 4950
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR034
U 1 1 6068C7B1
P 6450 4950
F 0 "#PWR034" H 6450 4700 50  0001 C CNN
F 1 "GNDA" H 6455 4777 50  0000 C CNN
F 2 "" H 6450 4950 50  0001 C CNN
F 3 "" H 6450 4950 50  0001 C CNN
	1    6450 4950
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR037
U 1 1 6068D4A3
P 6800 4950
F 0 "#PWR037" H 6800 4700 50  0001 C CNN
F 1 "GNDA" H 6805 4777 50  0000 C CNN
F 2 "" H 6800 4950 50  0001 C CNN
F 3 "" H 6800 4950 50  0001 C CNN
	1    6800 4950
	1    0    0    -1  
$EndComp
$Comp
L power:+3.3VA #PWR039
U 1 1 6068F177
P 6900 4500
F 0 "#PWR039" H 6900 4350 50  0001 C CNN
F 1 "+3.3VA" V 6915 4628 50  0000 L CNN
F 2 "" H 6900 4500 50  0001 C CNN
F 3 "" H 6900 4500 50  0001 C CNN
	1    6900 4500
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR029
U 1 1 60608CE0
P 5550 6450
F 0 "#PWR029" H 5550 6200 50  0001 C CNN
F 1 "GND" H 5555 6277 50  0000 C CNN
F 2 "" H 5550 6450 50  0001 C CNN
F 3 "" H 5550 6450 50  0001 C CNN
	1    5550 6450
	1    0    0    -1  
$EndComp
$Comp
L Device:C C12
U 1 1 60608CE6
P 5000 6250
F 0 "C12" V 5050 6050 50  0000 L CNN
F 1 "1uF" V 5040 6310 50  0000 L CNN
F 2 "" H 5038 6100 50  0001 C CNN
F 3 "~" H 5000 6250 50  0001 C CNN
	1    5000 6250
	1    0    0    -1  
$EndComp
$Comp
L Device:C C16
U 1 1 60608CEC
P 6100 6250
F 0 "C16" V 6050 6050 50  0000 L CNN
F 1 "4.7uF" V 6250 6150 50  0000 L CNN
F 2 "" H 6138 6100 50  0001 C CNN
F 3 "~" H 6100 6250 50  0001 C CNN
	1    6100 6250
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR026
U 1 1 60608CF2
P 5000 6450
F 0 "#PWR026" H 5000 6200 50  0001 C CNN
F 1 "GND" H 5005 6277 50  0000 C CNN
F 2 "" H 5000 6450 50  0001 C CNN
F 3 "" H 5000 6450 50  0001 C CNN
	1    5000 6450
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR032
U 1 1 60608CF8
P 6100 6450
F 0 "#PWR032" H 6100 6200 50  0001 C CNN
F 1 "GND" H 6105 6277 50  0000 C CNN
F 2 "" H 6100 6450 50  0001 C CNN
F 3 "" H 6100 6450 50  0001 C CNN
	1    6100 6450
	1    0    0    -1  
$EndComp
Wire Wire Line
	5550 6350 5550 6450
Wire Wire Line
	5000 6400 5000 6450
Wire Wire Line
	6100 6400 6100 6450
Wire Wire Line
	6100 6100 6100 6000
Wire Wire Line
	6100 6000 5950 6000
Wire Wire Line
	5150 6000 5000 6000
Wire Wire Line
	5000 6000 5000 6100
Wire Wire Line
	5000 6000 4900 6000
Connection ~ 5000 6000
Connection ~ 6100 6000
$Comp
L power:+3V8 #PWR024
U 1 1 60608D08
P 4900 6000
F 0 "#PWR024" H 4900 5850 50  0001 C CNN
F 1 "+3V8" V 4915 6128 50  0000 L CNN
F 2 "" H 4900 6000 50  0001 C CNN
F 3 "" H 4900 6000 50  0001 C CNN
	1    4900 6000
	0    -1   -1   0   
$EndComp
$Comp
L nokia3210-retrofit-lte:AP2120N-1.8 U5
U 1 1 60608D0E
P 5550 6100
F 0 "U5" H 5550 6466 50  0000 C CNN
F 1 "AP2120N-1.8" H 5550 6375 50  0000 C CNN
F 2 "" H 5550 6100 50  0001 C CNN
F 3 "" H 5550 6100 50  0001 C CNN
	1    5550 6100
	1    0    0    -1  
$EndComp
$Comp
L Device:C C19
U 1 1 60608D1A
P 6450 6250
F 0 "C19" V 6400 6100 50  0000 L CNN
F 1 "100nF" V 6600 6150 50  0000 L CNN
F 2 "" H 6488 6100 50  0001 C CNN
F 3 "~" H 6450 6250 50  0001 C CNN
	1    6450 6250
	1    0    0    -1  
$EndComp
$Comp
L Device:C C22
U 1 1 60608D20
P 6800 6250
F 0 "C22" V 6750 6100 50  0000 L CNN
F 1 "33pF" V 6950 6150 50  0000 L CNN
F 2 "" H 6838 6100 50  0001 C CNN
F 3 "~" H 6800 6250 50  0001 C CNN
	1    6800 6250
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR035
U 1 1 60608D26
P 6450 6450
F 0 "#PWR035" H 6450 6200 50  0001 C CNN
F 1 "GND" H 6455 6277 50  0000 C CNN
F 2 "" H 6450 6450 50  0001 C CNN
F 3 "" H 6450 6450 50  0001 C CNN
	1    6450 6450
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR038
U 1 1 60608D2C
P 6800 6450
F 0 "#PWR038" H 6800 6200 50  0001 C CNN
F 1 "GND" H 6805 6277 50  0000 C CNN
F 2 "" H 6800 6450 50  0001 C CNN
F 3 "" H 6800 6450 50  0001 C CNN
	1    6800 6450
	1    0    0    -1  
$EndComp
Wire Wire Line
	6800 6100 6800 6000
Connection ~ 6800 6000
Wire Wire Line
	6800 6000 6900 6000
Wire Wire Line
	6450 6100 6450 6000
Wire Wire Line
	6100 6000 6450 6000
Connection ~ 6450 6000
Wire Wire Line
	6450 6000 6800 6000
Wire Wire Line
	6450 6400 6450 6450
Wire Wire Line
	6800 6400 6800 6450
Text Notes 4800 5750 0    55   ~ 0
Analog 1V8
$Comp
L nokia3210-retrofit-lte:+1.8VA #PWR040
U 1 1 60D0C08F
P 6900 6000
F 0 "#PWR040" H 6900 5850 50  0001 C CNN
F 1 "+1.8VA" V 6915 6128 50  0000 L CNN
F 2 "" H 6900 6000 50  0001 C CNN
F 3 "" H 6900 6000 50  0001 C CNN
	1    6900 6000
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR0136
U 1 1 606EBAD1
P 7850 4650
F 0 "#PWR0136" H 7850 4400 50  0001 C CNN
F 1 "GND" H 7855 4477 50  0000 C CNN
F 2 "" H 7850 4650 50  0001 C CNN
F 3 "" H 7850 4650 50  0001 C CNN
	1    7850 4650
	1    0    0    -1  
$EndComp
$Comp
L power:GNDA #PWR0137
U 1 1 606EC7D3
P 8100 4650
F 0 "#PWR0137" H 8100 4400 50  0001 C CNN
F 1 "GNDA" H 8105 4477 50  0000 C CNN
F 2 "" H 8100 4650 50  0001 C CNN
F 3 "" H 8100 4650 50  0001 C CNN
	1    8100 4650
	1    0    0    -1  
$EndComp
Wire Wire Line
	7850 4650 7850 4550
Wire Wire Line
	7850 4550 8100 4550
Wire Wire Line
	8100 4550 8100 4650
$Comp
L power:PWR_FLAG #FLG0105
U 1 1 60874338
P 5850 1400
F 0 "#FLG0105" H 5850 1475 50  0001 C CNN
F 1 "PWR_FLAG" H 5850 1573 50  0000 C CNN
F 2 "" H 5850 1400 50  0001 C CNN
F 3 "~" H 5850 1400 50  0001 C CNN
	1    5850 1400
	1    0    0    -1  
$EndComp
Wire Wire Line
	5850 1400 5850 1500
$EndSCHEMATC