Gnss Frequency; Reference Design Of Gnss Antenna Interface - Quectel EG12 Series Hardware Design

5.2.2. GNSS Frequency

Table 37: GNSS Frequency
Type
GPS
GLONASS
Galileo
BeiDou
QZSS

5.2.3. Reference Design of GNSS Antenna Interface

A reference design of GNSS antenna is shown as below.
NOTES
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.
EG12_Hardware_Design
Frequency
1575.42± 1.023
1597.5~1605.8
1575.42± 2.046
1561.098± 2.046
1575.42
Module
ANT_GNSS
NM
Figure 34: Reference Circuit of GNSS Antenna Interface
VDD
0.1uF
10R
47nH
100pF
0R
NM
LTE-A Module Series
EG12 Hardware Design
Unit
MHz
MHz
MHz
MHz
MHz
GNSS
Antenna
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