Murata connector for
RF tests
U.FL connector for
external antenna
Hardware Description
2.6
Clocking
The board provides two crystals and one oscillator for the clocks to the device:
•
Y1: a 40-MHz crystal
•
Y2: a 32KHz oscillator
•
Y3: a 32KHz crystal used as a sleep clock
The 32-kHz crystal allows for lower LPDS sleep currents than other low-frequency clock sources. The
presence of the crystal allows the full range of low-power modes to be used.
2.7
Performing Conducted Testing
The BoosterPack by default ships with the RF signal connected to the on-board chip antenna.
illustrates that there is a miniature UMC connector (Murata MM8030-2610) on the board's RF path that
can be used for measuring the performance in a conducted mode.
In addition to the Murata connector, there is a U.FL connector on the board (see
) that can be
used for conducting testing or to connect an external antenna. This requires a board modification, as
illustrated in the figures below.
Figure 10. Connectors on the Board
Figure 11. Radiated Mode (Left) vs Conducted Mode (Right)
14
CC3100 SimpleLink™ Wi-Fi
®
and IoT Solution BoosterPack Hardware
SWRU371B – June 2014 – Revised January 2015
Copyright © 2014–2015, Texas Instruments Incorporated
