Quectel RG520N-AT - Reference Design

5G Module Series
RG520N-AT_Hardware_Design 76 / 109
.
5.2.3. Reference Design
The following is the reference circuit of GNSS antenna.
GNSS
Antenna
VDD
Module
ANT_GNSS
47 nH
10R
0.1 μF
0R
NM NM
100 pF
Figure 37: Reference Circuit of GNSS Antenna
.
Warm start
Autonomous
TBD
@ open sky
XTRA enabled
TBD
Hot start
Autonomous
TBD
@ open sky
XTRA enabled
TBD
Accuracy (GNSS)
CEP-50
Autonomous
TBD
m
@ open sky
1. Tracking sensitivity: the minimum GNSS signal power at which the module can maintain lock (keep
positioning for at least 3 minutes continuously).
2. Reacquisition sensitivity: the minimum GNSS signal power required for the module to maintain lock
within 3 minutes after loss of lock.
3. Acquisition sensitivity: the minimum GNSS signal power at which the module can fix position
successfully within 3 minutes after executing cold start command.
1. An external LDO can be selected when supplying power according to the active antenna
NOTE
NOTE