EVK-JODY-W2 - User guide
UBX-19027118 - R06
Contents
Page 13 of 25
C1 - Public
3.2
Jumper conventions
shows the graphical conventions used for jumper settings. Pin 1 is shown in grey color. All
jumpers are shown with red lines terminated with round edges.
Figure 8: Jumper convention
3.3
Power supply configuration
JODY-W2 series modules are supplied with
VBAT
(3.3 V),
1V8
(1.8 V), and
VIO
voltage (either 3.3 V or
1.8 V). Different interfaces and external sources can also provide input voltages to the module.
Power to EVK-JODY-W2 can be supplied through different interfaces:
•
SDIO interface: The host connector for all Wi-Fi and Bluetooth (optional) communication can be
used to generate the power needed for operation.
•
USB: If Bluetooth is connected through USB, the bus can also be used as a power supply.
•
External power supply: EVK-JODY-W2 can be powered by an external 5 V to 24 V supply using a
terminal connector or power jack. In this case, a DC-DC converter is used for generating all the
required internal voltages.
S1
is used to switch on the board when supplied through J100 (terminal
connector) or
J11
(power jack). Only one supply should be used at a time. The power jack should
be 2.1 mm in diameter with positive polarity at the center.
•
Individual supply: All necessary voltage levels,
VBAT
,
VIO
, and
1V8
have pinouts that can be
connected individually using an external power source.
Pin 1 of jumper JXXX
Jumper connected between two pins
