LTE-A Module Series
EG18 Hardware Design
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5.2.3. Reference Design of GNSS Antenna Interface
A reference design of GNSS antenna is shown as below.
GNSS
Antenna
VDD
Module
ANT_GNSS
47nH
10R
0.1μF
0R
NM
NM
100pF
Figure 37: Reference Circuit of GNSS Antenna Interface
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.
NOTES