rtc.sch 8.38 KB
Newer Older
1
EESchema Schematic File Version 4
2
LIBS:dvk-mx8m-bsb-cache
3
EELAYER 26 0
4 5 6
EELAYER END
$Descr A4 11693 8268
encoding utf-8
7
Sheet 6 24
8
Title "RTC"
9
Date "2018-08-14"
10
Rev "v0.1.0"
11 12 13 14 15
Comp "Copyright 2018 GNU GPLv3"
Comment1 "eric.kuzmenko@puri.sm"
Comment2 "angus.ainslie@puri.sm"
Comment3 "nicole.faerber@puri.sm"
Comment4 "christian.schilmoeller@puri.sm"
16 17
$EndDescr
$Comp
18
L Device:R R602
19
U 1 1 5AC5AF1B
20 21 22
P 6400 3850
F 0 "R602" V 6480 3850 50  0000 C CNN
F 1 "4.99k" V 6300 3850 50  0000 C CNN
23
F 2 "Resistor_SMD:R_0402_1005Metric" V 6330 3850 50  0001 C CNN
24 25
F 3 "" H 6400 3850 50  0001 C CNN
	1    6400 3850
26 27 28
	0    -1   -1   0   
$EndComp
Wire Wire Line
29
	6600 3850 6550 3850
30
$Comp
31
L dvk-mx8m-bsb:RV-4162-C7 U601
32
U 1 1 5AC5BD52
33 34 35
P 5000 3250
F 0 "U601" H 4900 3500 60  0000 C CNN
F 1 "RV-4162-C7" H 5000 3000 60  0000 C CNN
36
F 2 "dvk-mx8m-bsb:RV-4162-C7" H 5100 3000 60  0001 C CNN
37 38 39 40 41 42 43 44
F 3 "http://www.microcrystal.com/images/_Product-Documentation/02_Oscillator_&_RTC_Modules/01_Datasheet/RV-4162-C7.pdf" H 5100 3000 60  0001 C CNN
F 4 "Micro Crystal" H 5000 3250 60  0001 C CNN "MFG Name"
F 5 "RV-4162-C7" H 5000 3250 60  0001 C CNN "MFG Part Num"
F 6 "428-200007-MG01" H 5000 3250 60  0001 C CNN "Distrib PN"
F 7 "https://www.mouser.com/ProductDetail/Micro-Crystal/RV-4162-C7-32768kHz-20PPM-TA-QC?qs=sGAEpiMZZMtpeOq%2f1QMb1cjExEQOv3UjUIQN3bihTa4%3d" H 5000 3250 60  0001 C CNN "Distrib Link"
F 8 "-" H 5000 3250 60  0001 C CNN "Tolerance"
F 9 "https://www.digikey.com/product-detail/en/intersil/ISL12057IUZ/ISL12057IUZ-ND/2096552" H 5000 3250 60  0001 C CNN "Others"
	1    5000 3250
45 46 47
	1    0    0    -1  
$EndComp
Wire Wire Line
48
	6350 3400 5400 3400
49
Wire Wire Line
50
	6900 3650 6900 3400
51
Wire Wire Line
52 53
	6200 3850 6250 3850
Text HLabel 4550 3100 0    60   BiDi ~ 0
54
I2C1_SDA
55
Text HLabel 5450 3100 2    60   Input ~ 0
56
I2C1_SCL
57
$Comp
58
L power:GND #PWR0601
59
U 1 1 5AC6302E
60
P 4500 3350
61
F 0 "#PWR0601" H 4500 3100 50  0001 C CNN
62 63 64 65
F 1 "GND" H 4500 3200 50  0000 C CNN
F 2 "" H 4500 3350 50  0001 C CNN
F 3 "" H 4500 3350 50  0001 C CNN
	1    4500 3350
66 67 68
	1    0    0    -1  
$EndComp
Wire Wire Line
69
	4500 3350 4500 3300
70
Wire Wire Line
71 72
	4500 3300 4600 3300
NoConn ~ 4600 3200
73
$Comp
74
L Device:D_Schottky_x2_KCom_AAK D602
75
U 1 1 5AC55F7F
76 77 78
P 6900 3850
F 0 "D602" H 6800 3750 50  0000 C CNN
F 1 "BAT54C" H 6900 3950 50  0000 C CNN
79
F 2 "Package_TO_SOT_SMD:SOT-23" H 6900 3850 50  0001 C CNN
80 81 82 83 84 85 86 87
F 3 "https://goodarksemi.com/docs/datasheets/schottky_diodes/BAT54-A-C-S.pdf" H 6900 3850 50  0001 C CNN
F 4 "Good-Ark Semi" H 6900 3850 60  0001 C CNN "MFG Name"
F 5 "BAT54C" H 6900 3850 60  0001 C CNN "MFG Part Num"
F 6 "BAT54C" H 6900 3850 60  0001 C CNN "Distrib PN"
F 7 "https://www.arrow.com/en/products/bat54c/good-ark-semiconductor" H 6900 3850 60  0001 C CNN "Distrib Link"
F 8 "-" H 6900 3850 60  0001 C CNN "Tolerance"
F 9 "https://octopart.com/search?q=BAT54C&start=0" H 6900 3850 60  0001 C CNN "Others"
	1    6900 3850
88
	-1   0    0    1   
89 90
$EndComp
Wire Wire Line
91 92
	7200 3850 7250 3850
Connection ~ 7250 3850
93
Wire Wire Line
94
	7250 3800 7250 3850
95
$Comp
96
L power:GND #PWR0605
97
U 1 1 5AC5B669
98
P 7250 4250
99
F 0 "#PWR0605" H 7250 4000 50  0001 C CNN
100 101 102 103
F 1 "GND" H 7250 4100 50  0000 C CNN
F 2 "" H 7250 4250 50  0001 C CNN
F 3 "" H 7250 4250 50  0001 C CNN
	1    7250 4250
104 105 106
	1    0    0    -1  
$EndComp
Wire Wire Line
107
	7250 4250 7250 4200
108
$Comp
109
L Device:C C601
110
U 1 1 5AC5B61C
111 112 113
P 7250 4050
F 0 "C601" H 7275 4150 50  0000 L CNN
F 1 "100nF" H 7275 3950 50  0000 L CNN
114
F 2 "Capacitor_SMD:C_0402_1005Metric" H 7288 3900 50  0001 C CNN
115 116
F 3 "" H 7250 4050 50  0001 C CNN
	1    7250 4050
117 118 119
	1    0    0    -1  
$EndComp
$Comp
120
L dvk-mx8m-bsb:VBAT_REG #PWR0604
121
U 1 1 5AE5DA7A
122
P 7250 3800
123
F 0 "#PWR0604" H 7250 3650 50  0001 C CNN
124 125 126 127
F 1 "VBAT_REG" H 7250 3940 50  0000 C CNN
F 2 "" H 7250 3800 50  0001 C CNN
F 3 "" H 7250 3800 50  0001 C CNN
	1    7250 3800
128 129
	1    0    0    -1  
$EndComp
130
$Comp
131
L dvk-mx8m-bsb:VBAT #PWR0603
132
U 1 1 5AE5DAE8
133
P 6200 3800
134
F 0 "#PWR0603" H 6200 3650 50  0001 C CNN
135 136 137 138
F 1 "VBAT" H 6200 3940 50  0000 C CNN
F 2 "" H 6200 3800 50  0001 C CNN
F 3 "" H 6200 3800 50  0001 C CNN
	1    6200 3800
139 140
	1    0    0    -1  
$EndComp
141
Wire Wire Line
142 143
	6200 3800 6200 3850
Text Notes 6950 3475 0    60   ~ 0
144
When powered on\nVBAT_REG is used
145
Text Notes 5150 4150 0    60   ~ 0
146
 If battery is depleted\nthen current is ~~350nA\n      (<1µWatt)
147
Text Notes 5250 3850 0    60   ~ 0
148
VBAT is PTC fused
149
Text Notes 7050 3200 0    60   ~ 0
150
      VIH(min) not given, however\n    assuming VIH(min)≅0.77647*VDD\n@VDD=4.25V then VIH(min)≅3.2999975V
151
Text Notes 7050 3575 0    60   ~ 0
152
3.5~~4.25V
153
Wire Wire Line
154
	5450 3100 5400 3100
155
Wire Wire Line
156
	4550 3100 4600 3100
157
$Comp
158
L Device:D_Schottky_ALT D601
159
U 1 1 5B6718B5
160 161 162 163 164 165 166 167 168 169 170 171
P 5600 3300
F 0 "D601" H 5550 3200 50  0000 C CNN
F 1 "DB2J209" H 5825 3250 50  0000 C CNN
F 2 "dvk-mx8m-bsb:SMini2-F5-B" H 5600 3300 50  0001 C CNN
F 3 "https://industrial.panasonic.com/content/data/SC/ds/ds4/DB2J20900L_E.pdf" H 5600 3300 50  0001 C CNN
F 4 "Panasonic" V 5600 3300 60  0001 C CNN "MFG Name"
F 5 "DB2J20900L" V 5600 3300 60  0001 C CNN "MFG Part Num"
F 6 "667-DB2J20900L" V 5600 3300 60  0001 C CNN "Distrib PN"
F 7 "https://www.mouser.com/ProductDetail/Panasonic/DB2J20900L?qs=%2fha2pyFaduhbcITEqrxj3eM%252bYzwxAPmbxHAZ9Z3k%2f8Tl0%2fG3TiNLEw%3d%3d&utm_source=octopart&utm_medium=aggregator&utm_campaign=667-DB2J20900L&utm_content=Panasonic" V 5600 3300 60  0001 C CNN "Distrib Link"
F 8 "-" V 5600 3300 60  0001 C CNN "Tolerance"
F 9 "https://www.digikey.com/products/en/discrete-semiconductor-products/diodes-rectifiers-single/280" V 5600 3300 60  0001 C CNN "Others"
	1    5600 3300
172 173 174
	1    0    0    1   
$EndComp
$Comp
175
L Device:R R601
176
U 1 1 5B68E84A
177 178 179
P 6050 3100
F 0 "R601" H 6200 3150 50  0000 C CNN
F 1 "10k" H 6175 3050 50  0000 C CNN
180
F 2 "Resistor_SMD:R_0402_1005Metric" V 5980 3100 50  0001 C CNN
181 182 183 184 185 186 187 188
F 3 "https://www.seielect.com/Catalog/SEI-RMCF_RMCP.pdf" H 6050 3100 50  0001 C CNN
F 4 "Stackpole" H 6050 3100 60  0001 C CNN "MFG Name"
F 5 "RMCF0603JG10K0" H 6050 3100 60  0001 C CNN "MFG Part Num"
F 6 "RMCF0603JG10K0CT-ND" H 6050 3100 60  0001 C CNN "Distrib PN"
F 7 "https://www.digikey.com/product-detail/en/stackpole-electronics-inc/RMCF0603JG10K0/RMCF0603JG10K0CT-ND/4425128" H 6050 3100 60  0001 C CNN "Distrib Link"
F 8 "5%" H 6050 3100 60  0001 C CNN "Tolerance"
F 9 "https://www.digikey.com/products/en/resistors/chip-resistor-surface-mount/52?FV=ffe00034%2C400005%2C1f140000%2Cmu10+kOhms%7C2085&quantity=&ColumnSort=1000011&page=1&pageSize=500" H 6050 3100 60  0001 C CNN "Others"
	1    6050 3100
189 190 191
	1    0    0    -1  
$EndComp
Wire Wire Line
192
	6050 3300 6050 3250
193
Wire Wire Line
194
	6050 2900 6050 2950
195
Wire Wire Line
196 197
	5450 3300 5400 3300
Text HLabel 6100 3300 2    60   Output ~ 0
198 199
~IRQ
Wire Wire Line
200
	5750 3300 6050 3300
201 202
Connection ~ 6050 3300
Text Notes 4400 2650 0    60   ~ 0
203
7-bit Slave Address: 0x68\n       (1101 000x)
204
Text Notes 4750 2900 0    60   ~ 0
205
Read: 0xD1\nWrite: 0xD0
206
Text Notes 3700 4900 0    60   ~ 0
207
Note:\nDatasheet says slave address is 0xD0\nwith a R/W bit appended, since 0xD must\nbe 4-bits wide the actual 7-bit address is\n0x68 (110 1000), and becomes 0xD0 during a\nwrite operation (1101 0000)
208
Text Notes 3700 5300 0    60   ~ 0
209
Reference:\nhttps://github.com/HIO-Project/linux-imx6-nano-imx_3.10.17_1.0.1_ga/\nblob/8848e94b2f889fe44f6736e2d4c98851a2282275/arch/arm/boot/dts/\nimx6qdl-mtp.dtsi#L351
210
$Comp
211
L Device:Ferrite_Bead FB601
212
U 1 1 5B175E17
213 214 215 216 217 218 219 220 221 222 223 224
P 6500 3400
F 0 "FB601" V 6350 3400 50  0000 C CNN
F 1 "BLM18PG121SN1D" V 6650 3400 50  0000 C CNN
F 2 "dvk-mx8m-bsb:FER-0603" V 6430 3400 50  0001 C CNN
F 3 "https://www.murata.com/en-us/products/productdata/8796738650142/ENFA0003.pdf" H 6500 3400 50  0001 C CNN
F 4 "Murata" V 6500 3400 60  0001 C CNN "MFG Name"
F 5 "BLM18PG121SN1D" V 6500 3400 60  0001 C CNN "MFG Part Num"
F 6 "490-1037-1-ND" V 6500 3400 60  0001 C CNN "Distrib PN"
F 7 "https://www.digikey.com/product-detail/en/murata-electronics-north-america/BLM18PG121SN1D/490-1037-1-ND/584485" V 6500 3400 60  0001 C CNN "Distrib Link"
F 8 "25%" V 6500 3400 60  0001 C CNN "Tolerance"
F 9 "https://octopart.com/search?q=BLM18PG121SN1D&start=0" V 6500 3400 60  0001 C CNN "Others"
	1    6500 3400
225 226 227
	0    1    1    0   
$EndComp
Wire Wire Line
228 229 230
	6900 3400 6650 3400
Text Notes 4500 1700 0    236  ~ 47
Real-Time Clock
231
$Comp
232
L dvk-mx8m-bsb:3V3_OUT #PWR0602
233 234
U 1 1 5B6A7D4C
P 6050 2900
235
F 0 "#PWR0602" H 6050 2750 50  0001 C CNN
236 237 238 239 240 241
F 1 "3V3_OUT" H 6050 3040 50  0000 C CNN
F 2 "" H 6050 2900 50  0001 C CNN
F 3 "" H 6050 2900 50  0001 C CNN
	1    6050 2900
	1    0    0    -1  
$EndComp
242 243 244 245
Wire Wire Line
	7250 3850 7250 3900
Wire Wire Line
	6050 3300 6100 3300
246
$EndSCHEMATC