EVK-F9P-01 - User guide
UBX-22038408 - R03
Device description
Page 9 of 28
C1- Public
4
Device description
4.1
Interface connection and measurement
To connect the EVK to a PC, use the included Micro-USB cable. Alternatively, a standard SUB DB-9
cable can also be used. Additional measurement equipment can be connected to the front connector.
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Figure 1: Connecting the unit for power supply and communication
4.2
Active antenna
EVK-F9P evaluation kits include an ANN-MB multi-band (L1/L2) active GNSS antenna with a 3-meter
cable and an SMA connector.
The recommended maximum antenna supply current for active antennas is 15 mA.
4.3
Evaluation unit
Figure 2 shows the front and the rear panel of the EVK-F9P evaluation unit.
Front panel
Rear panel
Figure 2: EVK-F9P evaluation unit – front and rear panels
4.3.1
Antenna connector (RF IN)
An SMA female jack is available on the front side (see Figure 2) of the evaluation unit for connecting
an active GNSS antenna. A DC voltage of 3.3 V is provided to power the active antenna, and the RF
input is 3.3 V. The internal short circuit protection limits the maximum current to 60 mA. Note that
the 15-mA maximum supply current for the active antenna stays the same. This pin is also ESD
protected.
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CAUTION
Risk of equipment damage. Connecting this equipment to cable distribution systems
may damage the EVK. Use the connector only with a GNSS antenna or simulator.
4.3.2
USB connector
A USB port is featured for data communication and power supply. It is connected to a USB hub and
then to two FTDIs where the user can maintain communication from the USB to UART1 of the module
and can transmit correction data through UART2 using the same USB port at the same time. The user
