EVK-MAYA-W1 - User guide
UBX-21039658 - R01
Board description
Page 17 of 22
3.7
GPIOs
Figure 9 shows the pin headers J4 and J5 that provide direct access to the UART, JTAG, GPIO and
PCM/I2S interfaces on the MAYA-W1 module. The interface signals are connected through jumpers
to the M.2 card interface connector J2 or accessed directly through the pin headers.
3.8
Antenna interfaces
The evaluation board of EVK-MAYA-W161 includes two standard 50
Ω
female SMA connectors for
connecting external antennas or measurement instruments. EVK-MAYA-W166 uses the internal PCB
antenna of MAYA-W166.
Table 7 describes the available radio interfaces of the MAYA-W1 module and the respective antenna
interfaces on the EVB.
Product name
Module antenna interface Function
Antenna interface on EVB
EVK-MAYA-W161
RF_ANT0
2.4/5 GHz Wi-Fi
SMA connector J10
RF_ANT1
Bluetooth
SMA connector J11
EVK-MAYA-W166
Internal PCB antenna
2.4/5 GHz Wi-Fi and Bluetooth
-
Table 7: Antenna interface configuration
☞
Connect the external antennas supplied with EVK-MAYA-W161 to the SMA connectors J10
and J11. If 2.4 GHz Wi-Fi and Bluetooth are used at the same time, bend the antennas at a 90°
angle to each other or use a coaxial RF cable to increase isolation between the antennas.
3.9
Other interfaces
An optional external sleep clock for driving the MAYA-W1 module can be enabled by placing a jumper
on J12. Figure 11 shows the module RF control signals and the WCI-2 coexistence interface
accessible on J14 and J15.
Figure 11: RF controls (J14) and coexistence (J15) interfaces
3.10
LEDs
Table 8 describes the function and designation of the available LEDs on the EVK-MAYA-W1
evaluation board.
Function
Description
Designator
Color
Supply
Board 3.3 V and 1.8 V power supply status indication
D2
Green
UART
UART RX/TX activity indication
D3
Orange
Table 8: LED function
