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6
Antenna Interfaces
SC262R series module provides four antenna interfaces for the main antenna, Rx-diversity antenna,
Wi-Fi/Bluetooth antenna and GNSS antenna respectively. The impedance of the antenna ports should be
controlled to 50 Ω.
Appropriate antenna type and design should be used with matched antenna parameters according to
specific application. It is required to perform a comprehensive functional test for the RF design before
mass production of terminal products. The entire content of this chapter is provided for illustration only.
Analysis, evaluation and determination are still necessary when designing target products.
6.1. Main/Rx-diversity Antenna Interfaces
The pin definition of main/Rx-diversity antenna interfaces is shown below.
Table 31: Pin Definition of Main/Rx-diversity Antenna Interfaces
Pin Name
Pin No.
ANT_MAIN
87
ANT_DRX
131
The operating frequencies of SC262R series modules are listed in the following tables.
6.1.1. Operating Frequencies
Table 32: SC262R-EM Operating Frequencies
3GPP Band
GSM850
EGSM900
SC262R_Series_Hardware_Design
I/O
Description
AIO
Main antenna interface
AI
Rx-diversity antenna interface
Receive
869–894
925–960
Smart Module Series
Comment
50 Ω impedance
Transmit
824–849
880–915
Unit
MHz
MHz
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