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NOTE
1.
An external LDO can be selected to supply power according to the active antenna requirement.
2.
If the module is designed with a passive antenna, then the VDD circuit is not needed.
3.
It is recommended to use a passive GNSS antenna when LTE B13 is supported, as the use of active
antenna may generate harmonics which will affect the GNSS performance.
5.2.2 GNSS Performance
The following table shows the GNSS performance of the module.
Table 31: GNSS Performance
Parameter
Description
Acquisition
Sensitivity
Reacquisition
Tracking
Cold start
@ open sky
TTFF
Warm start
@ open sky
EG25-GL_Hardware_Design
Module
ANT_GNSS
NM
Figure 34: Reference Circuit of GNSS Antenna
VDD
0.1 μF
10R
47 nH
100 pF
0R
NM
Conditions
Autonomous
Autonomous
Autonomous
Autonomous
XTRA enabled
Autonomous
XTRA enabled
LTE Standard Module Series
GNSS
Antenna
Typ.
Unit
-146
dBm
-156
dBm
-157
dBm
35
s
15
s
28
s
3
s
67 / 96
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