HUAWEI ME909 Series LTE LGA Module
Hardware Guide
Electrical and Reliability Features
Issue V0.3 (2013-05-21)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
60
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USIM
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UART
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USB
Length of the USIM interface lines (preferably <10 cm).
EMC protection on audio input/output (filters against 900MHz emissions).
Biasing of the microphone inputs.
Ground plane: HUAWEI recommends a common ground plane for
analog/digital/RF grounds.
A metallic or plastic case with conductive paint is recommended, except for the
area around the antenna.
The HUAWEI ME909 Module does not include any protection against over voltage.