Product Info
Table Of Contents
- About the Document
- Contents
- Table Index
- Figure Index
- Introduction
- Product Concept
- Application Interfaces
- GNSS Receiver
- Antenna Interfaces
- Electrical, Reliability and RadioCharacteristics
- Mechanical Dimensions
- Storage, Manufacturing and Packaging
- Appendix A References
LTE Module Series
EG61-NA Hardware Design
EG61-NA_Hardware_Design 58 / 77
Table 25: GNSS Frequency
Type Frequency Unit
GPS 1575.42±1.023 MHz
GLONASS 1597.5~1605.8 MHz
Galileo 1575.42±2.046 MHz
BeiDou 1561.098±2.046 MHz
QZSS 1575.42 MHz
A reference design of GNSS antenna is shown as below.
GNSS
Antenna
VDD
Module
ANT_GNSS
47nH
10R
0.1uF
0R
NM
NM
100pF
Figure 35: 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.
5.3. Antenna Installation
5.3.1. Antenna Requirement
The following table shows the requirements on main antenna, Rx-diversity antenna and GNSS antenna.
NOTES