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5.2 Power supplies & management
Power supplies & management
FC7100's processor's digital I/O are mainly referenced to a 3
FC7100's processor's digital I/O are mainly referenced to a 3 ,3V voltage,
Ethernet interface can be configured either in 1,8V, 2,5V or 3,3V.
Ethernet interface can be configured either in 1,8V, 2,5V or 3,3V.
SDCard 1 & 2 can be configured either in 1,8Vor 3,3V voltage.
SDCard 1 & 2 can be configured either in 1,8Vor 3,3V voltage.
Camera 5 (CAM_5) can be configured either in 1,8Vor 3,3V voltage.
Camera 5 (CAM_5) can be configured either in 1,8Vor 3,3V voltage.
UART 5,6 & 7 can be configured either in 1,8Vor 3,3V voltage.
UART 5,6 & 7 can be configured either in 1,8Vor
5.2.1 Absolute maximum ratings
Absolute maximum ratings
Operating temperature range ................................
Storage temperature range ................................
DC input supply voltage (3v3 power domain) ................................ ................................
DC input supply voltage (3v3 power domain)
DC input supply voltage (2v5 power domain)
DC input supply voltage (2v5 power domain) ................................ ................................
DC input supply voltage (1v8 power
DC input supply voltage (1v8 power domain) ................................ ................................
5.2.2 External power supplies
External power supplies
•
3V3_MAIN
To operate, the module requires a unique 3V3 voltage power supply capable to deliver up to 4 A.
To operate, the module requires a unique 3V3 voltage power supply capable to deliver up to 4 A.
To operate, the module requires a unique 3V3 voltage power supply capable to deliver up to 4 A.
Recommendation on power management (3v3_MAIN) near the connector: 1x47uF and 1x22uF
Recommendation on power management (3v3_MAIN) near the connector: 1x47uF and 1x22uF
Recommendation on power management (3v3_MAIN) near the connector: 1x47uF and 1x22uF
capacitor.
3v3_PERM must alw ays be present before (
ays be present before ( and during) 3v3_MAIN power supply.
•
3V3_PERM
In case where RTC (Real Time Clock) option is needed, for time
In case where RTC (Real Time Clock) option is needed, for time - keeping, the motherboard must
permanently supply the 3V3_PERM pin of the board
In case where RTC option isn't needed, the 3V3_PERM and the 3V3_MAIN can be connected
RTC option isn't needed, the 3V3_PERM and the 3V3_MAIN can be connected
RTC option isn't needed, the 3V3_PERM and the 3V3_MAIN can be connected
together on a same 3,3V supply on the motherboard.
together on a same 3,3V supply on the motherboard.
•
VDD_ETH
For customers who want to configure the Ethernet interface with
want to configure the Ethernet interface with 1,8V , 2,5V or 3,3V I/O voltage, the
module requires to be pow ered with a
•
VDD_SD1_UART_5_6_7
For customers who want to configure the Ethernet interface with 1
want to configure the Ethernet interface with 1 ,8V , 2,5V or 3,3V I/O voltage, the
module requires to be powered with a
to be powered with a 1,8V, 2,5V or 3,3V external power supply .
•
VDD_SD2_CAM5
For customers who want to configure the Ethernet interface with
want to configure the Ethernet interface with 1,8V , 2,5V or 3,3V I/O voltage, the
module requires to be powered with a
to be powered with a 1,8V, 2,5V or 3,3V external power supply .
................................ ................................ ............................
................................ ................................ ..............................
during) 3v3_MAIN power supply.
3V3_PERM pin of the board with an independent 3V3 voltage.
ered with a 1,8V, 2,5V or 3,3V external power supply .
Confidential Information
Ref: OEM-2012-149
............................ -40°C to +85°C
.............................. -40°C to +105°C
................................ .................... 3,6V
................................ .................. 2,75V
................................ .................. 1,95V
keeping, the motherboard must
3V3 voltage.
, 2,5V or 3,3V I/O voltage, the
.
, 2,5V or 3,3V I/O voltage, the
.
, 2,5V or 3,3V I/O voltage, the
.
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