Yuga CLM920 TE3 LTE Module hardware usage guide V1.4
Table Of Contents
- 1 Introduction
- 2 Product summary
- 3 Interface description
- 4 Overall technical index
- 5 Antenna Interface
- 6 Interface electrical characteristics
- 7 Mechanical characteristics
- 8 Typical reference design
- 9 Packaging and production
CLM920_TE3 hardware user guide Version 1.2
30
ANT_GNSS
47
AI
GNSS Antenna（50Ω Ohm）
Figure 5-4 GNSS RX frequency
TYPE
Frequency
Beidou
1561.098 ± 2.046MHz
GPS/Galileo/QZSS
1575.42 ± 1.023MHz
GLONASS
1597.5 ~ 1605.8MHz
GNSS reference design can be designed according to the type of antenna, if a passive
antenna is selected, design can add a PI type circuit just like the main diversity antenna and
100pF capacitor can be placed in the middle. For active antenna, it is necessary to supply the
corresponding LDO to the antenna according to the type of active antenna after the series
capacitor.
图 18 GNSS 天线参考电路
5.4 Antenna connector
CLM920_TE3, for a convenience antenna adjustment and authentication test, it is
recommended that an antenna matching circuit and a radio frequency connector be added at
the antenna interface of the module, RF connector recommended HRS, U.FL-R-SMT-1(10)