Ublox EVK-F10T, Руководство пользователя, Страница: 10 / 23

EVK-F10T - User guide
UBX-23008022 - R01 Device description Page 10 of 23
C1- Public
Figure 4 EVK-F10T 5.0 V DC power supply example
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Use a maximum 25 cm cable when using the 3.3 V digital interfaces with your application (e.g.
UART)
4.1.2 USB
The USB connector in the evaluation kit can be used for both power supply and communication. The
EVK also provides UART communication through the 14-pin connector on the TXD and RXD pins. The
maximum operating baud rate is 921600 baud. For more information, see section
14-pin connector .
4.2 GNSS input signal
To evaluate the GNSS reception, the GNSS signal must be supplied to the antenna input SMA
connector of the evaluation kit. EVK-F10T evaluation kit includes ANN-MB1 multi-band (L1/L5) active
GNSS antenna with a 3 m cable. It is possible to connect various active GNSS antennas with SMA
connectors or provide a signal from a recorded or simulated GNSS RF source to the antenna input.
4.2.1 Antenna connector
For connecting an active antenna, an SMA female connector is available on the front of the EVK unit
(see
Figure 2 ). The EVK provides 3.3 V bias supply for the external antenna and the recommended
maximum antenna supply current for active antennas is 30 mA. This pin is also ESD protected.
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EVK-F10T has no antenna supervisor or short circuit detection feature. The short circuit
protection is limited to +/- 70mA.