ME310G1 Hardware Design Guide
1VV0301588 Rev. 12
Page 57 of 96
2021-06-14
GNSS SECTION
The ME310G1 module includes a state-of-the-art receiver capable of simultaneously
searching and tracking satellite signals from multiple satellite constellations. This multi-
GNSS receiver uses the entire spectrum of GNSS systems available: GPS, GLONASS,
BeiDou, Galileo, and QZSS.
GNSS Signals Pin-out
Table 36: GNSS Signals Pin-out
Warning: GNSS_1PPS is not currently supported by software and it
will be implemented in future SW releases.
RF Front End Design
The ME310G1 Module doesn’t contain the LNA necessary to achieve maximum sensitivity.
The Active antenna (antenna with a built-in low noise amplifier) must be used and must
be supplied with an proper bias-tee circuit.
Guidelines of PCB line for GNSS Antenna
•
Ensure that the antenna line impedance is 50ohm.
•
Keep the antenna line on the PCB as short as possible to reduce the loss.
•
The Antenna line must have uniform characteristics, constant cross section, avoid
meanders and abrupt curves.
•
If possible, Keep one layer of the PCB used only for the Ground plane.
•
Surround (on both sides, above and below) the antenna line on the PCB with
Ground, avoid having other signal tracks facing directly the antenna line.
•
The ground around the antenna line on the PCB must be tightly connected to the
Ground Plane by placing vias once per 2mm at least.
Pin
Signal
I/O
Function
Type
E19
ANT_GNSS
I
GNSS Antenna (50 ohm)
H18
GNSS_LNA_EN
O
GNSS External LNA Enable
CMOS 1.8V
G16
GNSS_1PPS
O
1 Pulse per Second
CMOS 1.8V
Содержание ME310G1-W1
Страница 1: ...ME310G1 HW Design Guide 1VV0301588 Rev 12 2021 06 14 Telit Technical Documentation...
Страница 74: ...ME310G1 Hardware Design Guide 1VV0301588 Rev 12 Page 74 of 96 2021 06 14 Figure 22 ME310G1 W1 tray...
Страница 76: ...ME310G1 Hardware Design Guide 1VV0301588 Rev 12 Page 76 of 96 2021 06 14 Figure 24 ME310G1 WW tray...
Страница 77: ...ME310G1 Hardware Design Guide 1VV0301588 Rev 12 Page 77 of 96 2021 06 14 Reel ME310G1 W1...
Страница 78: ...ME310G1 Hardware Design Guide 1VV0301588 Rev 12 Page 78 of 96 2021 06 14 ME310G1 WW ME310G1 W2 and ME310G1 W3...
Страница 96: ......