u-blox EVK-JODY-W3, Руководство пользователя

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EVK-JODY-W3 - User guide
UBX-20030840 - R04 Board description Page 17 of 29
The input voltage options for selecting the module supply are described in Table 6.
Designator Module supply Source
3V3 3V3 Can be connected to 3V3_DCDC or 3V3_EXT
VIO VIO Can be connected to 3V3_VIO, 1V8_VIO, or VIO_EXT
1V8 1V8 Can be connected to 1V8_DCDC or 1V8_EXT
Table 6: Input voltage options
Table 7 describes the different options for selecting the module input voltages using jumpers J1-J7.
Jumper settings Description / Voltage levels
VIO (3.3 V) VIO (1.8 V)
Selects the power supply from the host interface (PCIe,
SDIO or USB) or common external supply (VEXT) and on-
board DC-DC generated voltages.
VIO is derived from either 1V8 or 3V3.
• 3V3 – 3.3 V
•
1V8 – 1.8 V
• VIO – 1.8 V or 3.3 V
Selects the power supply using separate external input
sources for each of the voltage rails 3V3, 1V8 and VIO.
External supplies are connected to J101-J103 at the
bottom of the EVB carrier board.
Table 7: Jumper settings (J1-J7) for selecting module input voltage