Antenna Diversity; Lte Filter; Led - Ublox EVK-LILY-W1 User Manual

3.4.2 Antenna diversity

Antenna diversity can be evaluated using the U.FL coaxial connectors J4 and J5, after populating C12
instead of C13 on the evaluation board
Antenna selection for diversity is controlled by the ANT.SEL and ANT.SEL-N signals from the LILY-
W131 module. These signals can be monitored on the pin header J3 (see Table 10).

3.4.3 LTE filter

The LILY-W131 module includes a standard SAW bandpass filter. A BAW filter for Wi-Fi and LTE co-
existence (Triquint 885071) is included on the evaluation board in the antenna path to the J5 U.FL
connector by default (FL1), when using the antenna diversity configuration. The filter can be disabled
by populating C18 and C20 instead of C19 and C21. For evaluating the performance of the LTE filter,
the signals ANT.SEL and ANT.SEL-N on the pin header J3 can be tied to fixed values to manually
select one antenna path. R7 and R8 must be removed first to disconnect the switching control from
the LILY-W131 module. Table 11 lists the possible signal states for selecting one of the antenna
paths.
ANT.SEL ANT.SEL-N
GND VCC
VCC GND
Table 11: Antenna selection

3.5 LED

Table 12 lists the available LED on the EVB-LILY-W1 evaluation board:
Function Description
Main power Main power supply (VCC) status indication
Table 12: LED description
Refer to the schematics in section 3.6 and assembly drawing in section 3.7 to find the location of the components.
1
UBX-15030290 - R04
1
. Connect two external 2.4 GHz antennas to J4 and J5.
Selected antenna connector
J5 (with LTE filter)
J4 (without LTE filter)
Board description
EVK-LILY-W1 - User Guide
Name Color
LD1 Green
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