Development Board Connectors
PHYTEC Meßtechnik GmbH 2000 L-525e_2
9
2.1
Power Connectors X5
To provide power to the Development Board the low voltage socket
at X5 must be used
Attention:
Please do not use a laboratory or variable power supply, as power
spikes during power-up could destroy the PHYTEC module mounted
on the Development Board.
Please also avoid changing Jumpers or modules while the
Development Board is powered up.
2.1.1
Connection via the Low Voltage Socket X5
An unregulated power supply with the following characteristics can
be connected to the Development Board at low voltage socket X5.
DC input voltage range: 7V to 13V
recommended power supply: 9V@1000mA
(without additional periphery: 9V@500mA minimum)
The on-board power-regulation consists of two paths. One path to
ge5 V and +3.3 V (U3 and U4) for the phyCORE module and
the other path to ge5V (U5) that supplies the VG-96
periphery connector. To feed the regulated voltages jumpers
JP11/JP12 (+5V/+3.3V to phyCORE) and JP10 (+5 V
EXT
to VG-96)
must be closed. +5 V
EXT
can be switched with FET T1 which is
controlled by the /PWRON signal of the phyCORE-MPC555. This
allows to switch off any peripheral circuitry attached to the I/O
connector VG1 if the target module goes into power down mode. If
+5 V
EXT
is required constantly J1 must be closed (i.g. FET T1 is by-
passed).
The status of each output voltage is monitored by a LED.
LED D9: +5 V for phyCORE-MPC555
LED D10: +3.3 V for phyCORE-MPC555
LED D11: +5 V
EXT
for the VG-96 connector
