Product Info

Automotive Module Series
AG521R-NA QuecOpen Hardware Design
AG521R-NA_QuecOpen_Hardware_Design 66 / 104
4 Antenna Interfaces
The module includes one main antenna interface (ANT_MAIN) and one Rx-diversity antenna interface (ANT_DIV)
which is used to resist the fall of signals caused by high speed movement and multipath effect. The antenna ports
have an impedance of 50 Ω.
4.1. Main/Rx-diversity Antenna Interface
4.1.1. Pin Definition
The pin definition of Main/Rx-diversity antenna interfaces are shown below.
Table 28: Pin Definition of Main/Rx-diversity Antenna Interfaces
Pin Name
Pin No.
I/O
Description
Comment
ANT_MAIN
143
AI/AO
Main antenna interface
50 Ω impedance
ANT_DIV
170
AI
Receive diversity antenna interface
50 Ω impedance
4.1.2. Operating Frequency
Table 29: 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
LTE-FDD B25
1850-1915
1930-1995
MHz