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6
Antenna Interfaces
SC66 provides six antenna interfaces for main antenna, Rx-diversity/MIMO antenna, GNSS antenna,
Wi-Fi/BT antenna, FM antenna and Wi-Fi MIMO antenna, respectively. The antenna interfaces have an
impedance of 50Ω.
6.1. Main/Rx-diversity Antenna Interfaces
The pin definition of main/Rx-diversity antenna interfaces is shown below.
Table 36: Pin Definition of Main/Rx-diversity Antenna Interfaces
Pin Name
Pin No.
ANT_MAIN
19
ANT_DRX
149
The operating frequencies of SC66 module are listed in the following tables.
Table 37: SC66-CE* Operating Frequencies
3GPP Band
Receive
EGSM900
925~960
DCS1800
1805~1880
WCDMA B1
2110~2170
WCDMA B8
925~960
EVDO/CDMA BC0
869~894
TD-SCDMA B34
2010~2025
SC66_Hardware_Design
I/O
Description
IO
Main antenna interface
AI
Diversity antenna interface
Transmit
880~915
1710~1785
1920~1980
880~915
824~849
2010~2025
Smart LTE Module Series
SC66 Hardware Design
Comment
50Ω impedance
50Ω impedance
Unit
MHz
MHz
MHz
MHz
MHz
MHz
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