Huawei ME909 Series - RF Antenna Interface

HUAWEI ME909 Series LTE LGA Module
Hardware Guide
Description of the Application Interfaces
Issue V0.3 (2013-05-21)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
38
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JTAG reset pin of ME909 is different from that of MU509, MC509 and MU609.
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JTAG_SRST_N must be dealt with ESD protection as follow. The 1 kΩ resistor and
4.7 nFcapacitor must be placed as close as possible to ME909.
3.11 RF Antenna Interface
The ME909 module provides three antenna pads (MAIN_ANT, GPS_ANT and
AUX_ANT) for connecting the external antennas.
Route the antenna pad as close as possible to antenna connector. In addition, the
impedance of RF signal traces must be 50 Ω.
Table 3-13 Definition of the antenna pads
Pin No.
Pin Name
I/O
Description
107
MAIN_ANT
-
RF MAIN pad
111
GPS_ANT
-
RF GPS pad
115
AUX_ANT
-
RF AUX pad