LEA-6 / NEO-6 / MAX-6 - Hardware Integration Manual
UBX-14054794 Production Information Design-in
Page 28 of 85
2.2.2.7 Module design with passive antenna and an external LNA
Figure 22 shows a GPS & GLONASS passive antenna design with the LEA-6N GLONASS, GPS & QZSS module.
For best performance with passive antenna designs use an external LNA.
Figure 22: Module design with passive antenna
A standard GPS LNA has enough bandwidth to amplify GPS and GLONASS.
For recommended SAW Filters for GPS & GLONASS (Part F2 in Figure 22), see section 3.3.9.
2.2.2.8 GLONASS SW integration
To activate GLONASS mode the customer application will have to send UBX proprietary commands for activating
and switching to GLONASS reception. The applicable SW commands are documented in the u-blox 6 Receiver
Description including Protocol Specification (GPS/GLONASS/QZSS) [5].
2.2.3 LEA-6R design
2.2.3.1 Connecting gyroscope and temperature sensor to the LEA-6R
The LEA-6R acts as SPI master. Following signals are used by the SPI:
Chip Select signal for ADC/turn rate sensor
Chip Select signal for temperature sensor
Serial data (Master In / Slave Out)
Serial data (Master Out / Slave In), leave open
Table 8: SPI pins for LEA-6R