Telit Wireless Solutions ME910G1 - GNSS Characteristics

ME910G1 Hardware Design Guide
1VV0301593 Rev.12 Page 63 of 93 2021-09-24
Not Subject to NDA
The electrical characteristics of the GPS_LNA_EN signal are:
Table 33: Electrical characteristics of the GPS_LNA_EN
Example of external antenna bias circuitry:
Figure 23: External antenna bias circuitry example
Pay attention to the maximum bias current in case of an unwanted short circuit on the
antenna cable, as the decoupling inductor could be damaged. In case of LNA with 1.8V
supply, the VAUX/POWERMON pin can be used to supply the active GNSS antenna
GNSS Characteristics
The table below specifies the GNSS characteristics and expected performance:
Table 34: GNSS characteristics
Level
Min
Max
Output High Level
1.6V
1.9V
Output Low Level
0V
0.3V
Parameters
Typical
Measurement
Notes
Sensitivity
Tracking Sensitivity
-159 dBm
Navigation
-155 dBm
Cold Start
-144 dBm
TTFF
Hot
N/A
It will be available in next revision
Warm
<30s
GNSS Simulator test @-130dBm
Cold
<30s
GNSS Simulator test @-130dBm
Min Navigation update rate
1Hz
CEP
<2m