Yuga CLM920 TD5 LTE Module Hardware Manual

CLM920_TD5 LTE Module Hardware Manual
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域格信息技术有限公司
YuGe Information Technology Co.,Ltd
Figure 3- 20 PCM short mode sequence diagram
3.12
Antenna Interface
CLM920_TD5 Mini PCIE module has three antenna interfaces which include a main
antenna interface, a Rx-diversity antenna interface and a GNSS antenna interface.
Diversity antenna is recommended, which used to limit the signal drop by high speed
moving or multipath fading.
3.12.1 RF Connector Location
Figure 3- 21 RF connector location map
3.12.2 RF Connector
The connection mode of using RF Connector is recommended.
The antenna connector must use a 50Ω characteristic impedance coaxial connector
and choose the RF cables which insertion loss as low as possible.
It is recommended to use Murata's MM9329-2700 connector.
256
LSB
LSB
MSB
MSB
PCM_IN
PCM_SYNC
PCM_CLK
125us
PCM_OUT
1
2
125us
Main Antenna
Diversity Antenna
GNSS Antenna