Ublox EVK-JODY-W2, Руководство пользователя

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EVK-JODY-W2 - User guide
UBX-19027118 - R06 Contents Page 14 of 25
C1 - Public
Figure 9 shows the external connectors and jumpers used for configuring the different power supply
options.
Figure 9: Overview of EVB power supply configuration
To operate the JODY-W2 EVB, the external power supply source (power mux) and input voltage
levels to the module must be configured using jumpers on the EVB. The power supply tree, including
the jumpers on the EVB, is shown in
Figure 10 . See also Jumpers and connectors .
• J104 – J106 configure the EVB power supply source (SDIO, USB or external) to the VIN_3V3
domain, which generates the internal power rails for the module.
•
J1-J7 configure the input voltages for the JODY-W2 series module, which can be selected
between the internally generated voltages and the external supplies from J101-J103.
DC-DC converters are used to step-down the external and USB supplies to the power mux and
generate the required input voltages for the module.
Pins for voltage
measurements
Jumper for power
supply selection, for
example via SDIO
interface
Power supply
status LEDs
External individual power supply for
each of the signals 3V3, VIO, and 1V8
Single external power
supply connector