Ublox NEO-M8N User Manual

NEO-8Q / NEO-M8 - Hardware integration manual
UBX-15029985 - Production information Design Page 14 of 15
C1-Public
Figure 7: NEO-M8M module design with passive antenna, external LNA and SAW filter
The VCC_RF output can be used to supply the LNA with a filtered supply voltage.
☞ An external LNA is only required if the antenna is far away. In that case, the LNA must be placed
close to the passive antenna.
Figure 8: NEO-M8N/J/T/Q and NEO-8Q module design with passive antenna and an external LNA
The LNA_EN pin (LNA enable) can be used to turn on and off an optional external LNA.
The VCC_RF output can be used to supply the LNA with a filtered supply voltage.
☞ A standard GNSS LNA has enough bandwidth to amplify GPS/GLONASS/Galileo/BeiDou signals.
☞ An external LNA is only required if the antenna is far away. In that case the LNA must be placed
close to the passive antenna.

Ublox NEO-M8N Specifications

General

Channels	72
Velocity Accuracy	0.05 m/s
Time Accuracy	30 ns
Max Update Rate	10 Hz
Sensitivity Tracking	-167 dBm
Acquisition Sensitivity	-160 dBm
Cold Start	26 s
Warm Start	2 s
Hot Start	1 s
Reacquisition	1 s
Operating Temperature	-40°C to +85°C
Supply Voltage	2.7 V to 3.6 V
GNSS	GPS, GLONASS, BeiDou, Galileo, QZSS
Interface	UART, I2C, SPI
Dimensions	12.2 mm x 16.0 mm x 2.4 mm
Position Accuracy	2.5 m CEP