Smart Module Series
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Table 40: GNSS Frequency
6.3.1. Reference Circuit Design for Passive GNSS Antenna
GNSS antenna interface supports passive ceramic antennas and other types of passive antennas. A
reference circuit design is given below.
Passive
Antenna
Module
ANT_GNSS
NM
C1
C2
C3
NM
R1
0
Ω
Figure 31: Reference Circuit Design for Passive GNSS Antenna
It is not recommended to add an external LNA when using a passive GNSS antenna.
Type
Frequency
Unit
GPS L1
1575.42 ±1.023
MHz
GPS L5
1176.45 ±10.23
MHz
GLONASS L1
1597.5
–1605.8
MHz
BDS B1I
1561.098 ±2.046
MHz
Galileo E1
1575.42 ±2.046
MHz
Galileo E5a
1176.45 ±10.23
MHz
QZSS L1
1575.42 ±1.023
MHz
QZSS L5
1176.45 ±10.23
MHz
SBAS L1
1575.42 ±1.023
MHz
SBAS L5
1176.45 ±10.23
MHz
NavlC L5
1176.45 ±10.23
MHz
NOTE