Product Info

LTE Module Series
EC25 Hardware Design
EC25_Hardware_Design 77 / 112
Table 29: GNSS Frequency
A reference design of GNSS antenna is shown as below.
Figure 37: Reference Circuit of GNSS Antenna
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.
Type Frequency Unit
GPS/Galileo/QZSS 1575.42±1.023 MHz
GLONASS 1597.5~1605.8 MHz
BeiDou 1561.098±2.046 MHz
NOTES