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Telit Wireless Solutions ME910G1 Design Guide

Telit Wireless Solutions ME910G1
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ME910G1 Hardware Design Guide
1VV0301593 Rev.12 Page 60 of 93 2021-09-24
Not Subject to NDA
8. GNSS SECTION
The ME910G1 module includes a state-of-art receiver that can simultaneously search
and track 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 31: GNSS Signals Pin-out
RF Front End Design
The ME910G1 Module contains a pre-select SAW filter but does not contain the LNA
necessary to achieve the maximum sensitivity. Active antenna (antenna with a built-in low
noise amplifier) must be used and must be supplied with a proper bias-tee circuit.
Guidelines of PCB Line for GNSS Antenna
Make sure 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 sharp curves.
If possible, keep one layer of the PCB used only for the Ground plane.
Surround (on both the sides, above and below) the antenna line on the PCB with
Ground, make sure the other signal tracks do not face directly the antenna line of
track.
The ground around the antenna line on PCB must be strictly connected to the
Ground Plane by placing vias once per 2mm at least.
Place EM noisy devices as far as possible away from antenna line.
Pin
Signal
I/O
Function
Type
R9
ANT_GNSS
I
GNSS Antenna (50 ohm)
R7
GNSS_LNA_EN
O
GNSS External LNA Enable
CMOS 1.8V

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Telit Wireless Solutions ME910G1 Specifications

General IconGeneral
BrandTelit Wireless Solutions
ModelME910G1
CategoryWireless modules
LanguageEnglish

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