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Table Of Contents
LTE Module Series
EG61-NA Hardware Design
EG61-NA_Hardware_Design 54 / 77
5 Antenna Interfaces
EG61-NA antenna interfaces include a main antenna interface andanRx-diversity antennainterface which
is used toresist the fall of signals caused by high speed movement and multipath effect, and a GNSS
antenna interface which is only supported on EG61-NA.The impedance of the antenna port is 50Ω.
5.1. Main/Rx-diversityAntenna Interfaces
5.1.1. Pin Definition
The pin definitionof main antenna and Rx-diversityantenna interfaces is shown below.
Table 22: Pin Definition of RF Antenna
Pin Name Pin No. I/O Description Comment
ANT_MAIN 60 IO Main antenna pad 50Ωimpedance
ANT_DIV 49 AI Receive diversityantenna pad 50Ωimpedance
ANT_DIV
56 AI
Receive diversity antenna pad
50Ω impedance
5.1.2. Operating Frequency
Table 23: Module Operating Frequencies
3GPP Band Transmit Receive Unit
WCDMA B2 1850~1910 1930~1990 MHz
WCDMA B4 1710~1755 2110~2155 MHz
WCDMA B5 824~849 869~894 MHz
LTE FDD B2 1850~1910 1930~1990 MHz
LTE FDD B4 1710~1755 2110~2155 MHz