Product Info

Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 93 / 118
6 Antenna Interfaces
SC66 provides five antenna interfaces for main antenna, Rx-diversity/MIMO antenna, GNSS antenna,
Wi-Fi/BT antenna and WIFI_MIMO antenna. respectively. The antenna ports 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
The operating frequencies of SC66 module are listed in the following table.
Table 37: SC66-CE* Module Operating Frequencies
Pin Name
Pin No.
I/O
Description
Comment
ANT_MAIN
19
IO
Main antenna interface
50Ω impedance
ANT_DRX
149
AI
Diversity and MIMO
antenna interface
50Ω impedance
3GPP Band
Receive
Transmit
Unit
EGSM900
925~960
880~915
MHz
DCS1800
1805~1880
1710~1785
MHz
WCDMA B1
2110~2170
1920~1980
MHz
WCDMA B8
925~960
880~915
MHz
EVDO/CDMA BC0
869~894
824~849
MHz
TD-SCDMA B34
2010~2025
2010~2025
MHz
TD-SCDMA B39
1880~1920
1880~1920
MHz