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schematics v1.8.6: fixing RTC time loss issue with RC network

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pull/3/head
davor 6 years ago
parent 6d976800e8
commit 449eea2cd8
4 changed files with 144 additions and 52 deletions
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95
power.bak
Unescape View File

@ -752,7 +752,8 @@ F 0 "R8" V 4180 5200 50 0000 C CNN
F 1 "1k" V 4100 5200 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 4030 5200 50 0001 C CNN
F 3 "" H 4100 5200 50 0000 C CNN
F 4 "RC0603FR-071KL" V 4100 5200 50 0001 C CNN "MFG_PN"
F 4 "www.yageo.com" V 4100 5200 50 0001 C CNN "MFG_URL"
F 5 "RC0603FR-071KL" V 4100 5200 50 0001 C CNN "MFG_PN"
1 4100 5200
1 0 0 -1
$EndComp
@ -1475,8 +1476,6 @@ Wire Wire Line
900 3450 1550 3450
Wire Wire Line
900 3850 1550 3850
Wire Wire Line
1950 3250 1950 3150
Wire Wire Line
4300 3900 4300 4000
Wire Wire Line
@ -1545,16 +1544,16 @@ Connection ~ 7650 1050
$Comp
L power:+3V3 #PWR027
U 1 1 591C4E6A
P 1950 3150
F 0 "#PWR027" H 1950 3000 50 0001 C CNN
F 1 "+3V3" H 1950 3290 50 0000 C CNN
F 2 "" H 1950 3150 50 0000 C CNN
F 3 "" H 1950 3150 50 0000 C CNN
1 1950 3150
P 1500 2500
F 0 "#PWR027" H 1500 2350 50 0001 C CNN
F 1 "+3V3" H 1500 2640 50 0000 C CNN
F 2 "" H 1500 2500 50 0000 C CNN
F 3 "" H 1500 2500 50 0000 C CNN
1 1500 2500
1 0 0 -1
$EndComp
Text Notes 1700 2900 0 60 ~ 0
RTC can also be powered from 2.5V\nbut it is easier to route 3.3V
Text Notes 2100 3200 0 60 ~ 0
RC network for proper switchover\nto battery at fast fall of VDD.\nSee page 54 NXP PCF8523T datasheet.\nRTC can also be powered from 2.5V\nbut it is easier to route 3.3V
Text GLabel 2500 4950 0 60 Input ~ 0
FTDI_nSLEEP
$Comp
@ -2363,28 +2362,28 @@ Text GLabel 6050 4600 1 60 Input ~ 0
$Comp
L Device:C C47
U 1 1 5AB6B7B8
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P 1650 1850
AR Path="/5AB6B7B8" Ref="C47" Part="1"
AR Path="/58D51CAD/5AB6B7B8" Ref="C47" Part="1"
F 0 "C47" H 975 2750 50 0000 L CNN
F 1 "2.2uF" H 975 2550 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 988 2500 50 0001 C CNN
F 3 "" H 950 2650 50 0000 C CNN
F 4 "CC0805MRX5R6BB225" H 950 2650 50 0001 C CNN "MFG_PN"
1 950 2650
F 0 "C47" H 1675 1950 50 0000 L CNN
F 1 "2.2uF" H 1675 1750 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 1688 1700 50 0001 C CNN
F 3 "" H 1650 1850 50 0000 C CNN
F 4 "CC0805MRX5R6BB225" H 1650 1850 50 0001 C CNN "MFG_PN"
1 1650 1850
1 0 0 -1
$EndComp
Text GLabel 950 2500 1 60 Input ~ 0
Text GLabel 1650 1700 1 60 Input ~ 0
2V5_3V3
$Comp
L power:GND #PWR025
U 1 1 5AB6BA00
P 950 2800
F 0 "#PWR025" H 950 2550 50 0001 C CNN
F 1 "GND" H 950 2650 50 0000 C CNN
F 2 "" H 950 2800 50 0000 C CNN
F 3 "" H 950 2800 50 0000 C CNN
1 950 2800
P 1650 2000
F 0 "#PWR025" H 1650 1750 50 0001 C CNN
F 1 "GND" H 1650 1850 50 0000 C CNN
F 2 "" H 1650 2000 50 0000 C CNN
F 3 "" H 1650 2000 50 0000 C CNN
1 1650 2000
1 0 0 -1
$EndComp
$Comp
@ -3105,4 +3104,50 @@ F 10 "621-BAT54WSQ-7-F " H 3100 5600 50 0001 C CNN "Distributor1_PN2"
$EndComp
Text Label 4100 5400 0 60 ~ 0
SHD
$Comp
L Device:C C55
U 1 1 5B09EC4B
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F 0 "C55" H 1250 3050 50 0000 L CNN
F 1 "22uF" H 1300 2950 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 1538 2900 50 0001 C CNN
F 3 "" H 1500 3050 50 0000 C CNN
F 4 "www.yageo.com" H 1500 3050 50 0001 C CNN "MFG_URL"
F 5 "CC0805ZKY5V5BB226 " H 1500 3050 50 0001 C CNN "MFG_PN"
1 1500 3050
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0171
U 1 1 5B0A3243
P 1500 3200
F 0 "#PWR0171" H 1500 2950 50 0001 C CNN
F 1 "GND" H 1500 3050 50 0000 C CNN
F 2 "" H 1500 3200 50 0000 C CNN
F 3 "" H 1500 3200 50 0000 C CNN
1 1500 3200
1 0 0 -1
$EndComp
$Comp
L Device:R R65
U 1 1 5B0A7AE1
P 1500 2650
F 0 "R65" V 1580 2650 50 0000 C CNN
F 1 "1k" V 1500 2650 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 1430 2650 50 0001 C CNN
F 3 "" H 1500 2650 50 0000 C CNN
F 4 "www.yageo.com" V 1500 2650 50 0001 C CNN "MFG_URL"
F 5 "RC0603FR-071KL" V 1500 2650 50 0001 C CNN "MFG_PN"
1 1500 2650
1 0 0 -1
$EndComp
Wire Wire Line
1500 2800 1500 2850
Wire Wire Line
1500 2850 1950 2850
Wire Wire Line
1950 2850 1950 3250
Connection ~ 1500 2850
Wire Wire Line
1500 2850 1500 2900
$EndSCHEMATC

97
power.sch
Unescape View File

@ -752,7 +752,8 @@ F 0 "R8" V 4180 5200 50 0000 C CNN
F 1 "1k" V 4100 5200 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 4030 5200 50 0001 C CNN
F 3 "" H 4100 5200 50 0000 C CNN
F 4 "RC0603FR-071KL" V 4100 5200 50 0001 C CNN "MFG_PN"
F 4 "www.yageo.com" V 4100 5200 50 0001 C CNN "MFG_URL"
F 5 "RC0603FR-071KL" V 4100 5200 50 0001 C CNN "MFG_PN"
1 4100 5200
1 0 0 -1
$EndComp
@ -1475,8 +1476,6 @@ Wire Wire Line
900 3450 1550 3450
Wire Wire Line
900 3850 1550 3850
Wire Wire Line
1950 3250 1950 3150
Wire Wire Line
4300 3900 4300 4000
Wire Wire Line
@ -1545,16 +1544,16 @@ Connection ~ 7650 1050
$Comp
L power:+3V3 #PWR027
U 1 1 591C4E6A
P 1950 3150
F 0 "#PWR027" H 1950 3000 50 0001 C CNN
F 1 "+3V3" H 1950 3290 50 0000 C CNN
F 2 "" H 1950 3150 50 0000 C CNN
F 3 "" H 1950 3150 50 0000 C CNN
1 1950 3150
P 1500 2500
F 0 "#PWR027" H 1500 2350 50 0001 C CNN
F 1 "+3V3" H 1500 2640 50 0000 C CNN
F 2 "" H 1500 2500 50 0000 C CNN
F 3 "" H 1500 2500 50 0000 C CNN
1 1500 2500
1 0 0 -1
$EndComp
Text Notes 1700 2900 0 60 ~ 0
RTC can also be powered from 2.5V\nbut it is easier to route 3.3V
Text Notes 2100 3200 0 60 ~ 0
RC network for proper switchover\nto battery at fast fall of VDD.\nSee page 54 NXP PCF8523T datasheet.\nRTC can also be powered from 2.5V\nbut it is easier to route 3.3V
Text GLabel 2500 4950 0 60 Input ~ 0
FTDI_nSLEEP
$Comp
@ -2363,28 +2362,28 @@ Text GLabel 6050 4600 1 60 Input ~ 0
$Comp
L Device:C C47
U 1 1 5AB6B7B8
P 950 2650
P 1650 1850
AR Path="/5AB6B7B8" Ref="C47" Part="1"
AR Path="/58D51CAD/5AB6B7B8" Ref="C47" Part="1"
F 0 "C47" H 975 2750 50 0000 L CNN
F 1 "2.2uF" H 975 2550 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 988 2500 50 0001 C CNN
F 3 "" H 950 2650 50 0000 C CNN
F 4 "CC0805MRX5R6BB225" H 950 2650 50 0001 C CNN "MFG_PN"
1 950 2650
F 0 "C47" H 1675 1950 50 0000 L CNN
F 1 "2.2uF" H 1675 1750 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 1688 1700 50 0001 C CNN
F 3 "" H 1650 1850 50 0000 C CNN
F 4 "CC0805MRX5R6BB225" H 1650 1850 50 0001 C CNN "MFG_PN"
1 1650 1850
1 0 0 -1
$EndComp
Text GLabel 950 2500 1 60 Input ~ 0
Text GLabel 1650 1700 1 60 Input ~ 0
2V5_3V3
$Comp
L power:GND #PWR025
U 1 1 5AB6BA00
P 950 2800
F 0 "#PWR025" H 950 2550 50 0001 C CNN
F 1 "GND" H 950 2650 50 0000 C CNN
F 2 "" H 950 2800 50 0000 C CNN
F 3 "" H 950 2800 50 0000 C CNN
1 950 2800
P 1650 2000
F 0 "#PWR025" H 1650 1750 50 0001 C CNN
F 1 "GND" H 1650 1850 50 0000 C CNN
F 2 "" H 1650 2000 50 0000 C CNN
F 3 "" H 1650 2000 50 0000 C CNN
1 1650 2000
1 0 0 -1
$EndComp
$Comp
@ -3105,4 +3104,52 @@ F 10 "621-BAT54WSQ-7-F " H 3100 5600 50 0001 C CNN "Distributor1_PN2"
$EndComp
Text Label 4100 5400 0 60 ~ 0
SHD
$Comp
L Device:C C55
U 1 1 5B09EC4B
P 1500 3050
F 0 "C55" H 1250 3050 50 0000 L CNN
F 1 "22uF" H 1300 2950 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 1538 2900 50 0001 C CNN
F 3 "" H 1500 3050 50 0000 C CNN
F 4 "www.yageo.com" H 1500 3050 50 0001 C CNN "MFG_URL"
F 5 "CC0805ZKY5V5BB226 " H 1500 3050 50 0001 C CNN "MFG_PN"
1 1500 3050
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0171
U 1 1 5B0A3243
P 1500 3200
F 0 "#PWR0171" H 1500 2950 50 0001 C CNN
F 1 "GND" H 1500 3050 50 0000 C CNN
F 2 "" H 1500 3200 50 0000 C CNN
F 3 "" H 1500 3200 50 0000 C CNN
1 1500 3200
1 0 0 -1
$EndComp
$Comp
L Device:R R65
U 1 1 5B0A7AE1
P 1500 2650
F 0 "R65" V 1580 2650 50 0000 C CNN
F 1 "1k" V 1500 2650 50 0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 1430 2650 50 0001 C CNN
F 3 "" H 1500 2650 50 0000 C CNN
F 4 "www.yageo.com" V 1500 2650 50 0001 C CNN "MFG_URL"
F 5 "RC0603FR-071KL" V 1500 2650 50 0001 C CNN "MFG_PN"
1 1500 2650
1 0 0 -1
$EndComp
Wire Wire Line
1500 2800 1500 2850
Wire Wire Line
1500 2850 1950 2850
Wire Wire Line
1950 2850 1950 3250
Connection ~ 1500 2850
Wire Wire Line
1500 2850 1500 2900
Text Label 1550 2850 0 60 ~ 0
RTCVDD
$EndSCHEMATC

2
ulx3s.bak
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@ -7,7 +7,7 @@ encoding utf-8
Sheet 1 11
Title "ULX3S"
Date ""
Rev "1.8.4"
Rev "1.8.6"
Comp "FER+RIZ+RADIONA"
Comment1 "Root sheet"
Comment2 ""

2
ulx3s.sch
Unescape View File

@ -7,7 +7,7 @@ encoding utf-8
Sheet 1 11
Title "ULX3S"
Date ""
Rev "1.8.5"
Rev "1.8.6"
Comp "FER+RIZ+RADIONA"
Comment1 "Root sheet"
Comment2 ""

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