Rf Connections - Texas Instruments SimpleLink LaunchPad CC3235MODSF User Manual

Operational Setup and Testing

4.2 RF Connections

4.2.1 AP Connection Testing
By default, the board ships with the 2.4 GHz and 5 GHz RF signals routed to the onboard chip antenna, as
shown in Figure 4-4.
A U.FL connector J17 provides a way to test in the lab using a compatible cable. Alternatively, trackpads
for an SMA connector J15 are provided onboard to replace the J17 U.FL connector for testing conducted
measurements. A rework must be performed before these connectors can be used; this involves swapping the
position of a resistor. Figure 4-5
Figure 4-5. Board Modified for External Antenna Connections (Measure 2.4 GHz or 5 GHz)
44 CC3235MODSF SimpleLink™ Wi-Fi
LaunchPad™ Hardware
Figure 4-4. Using Onboard Antenna (Default Condition)
shows the modified board.
®
and IoT Solution With MCU
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SWRU548C – FEBRUARY 2019 – REVISED SEPTEMBER 2021
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