Automotive Module Series
AG525R-GL QuecOpen
Hardware Design
AG525R-GL_QuecOpen_Hardware_Design 70 / 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
GSM850 824–850 869–894 MHz
EGSM900 880–915 925–960 MHz
DCS1800 1710–1785 1805–1880 MHz
PCS1900 1850–1910 1930–1990 MHz
WCDMA B1 1920–1980 2110–2170 MHz
WCDMA B2 1850–1910 1930–1990 MHz
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