Huawei ME909u-521 Hardware Manual page 3

HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
Revision History
Document
Version
01
02
03
Issue 05 (2017-12-15)
Date Chapter
2013-07-12
2014-01-20 All
3.4.2
3.6
3.11
4.4.1
5.4.2
5.5
5.6
6.7.3
9
2015-04-25 2.2
3
3.3.2
3.4.5
4.4.2
4.6
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
About This Document
Descriptions
Creation
Deleted the description related to
ME909u-121 and ME909u-721 in issue 01
Updated Figure 3-4 power on timing
sequence
Updated Figure 3-14 recommended circuit
of USB interface and its notes
Updated RF antenna interface
Added Table 4-3 ME909u-521 module GPS
main characteristics
Updated power consumption
Updated reliability features
Updated EMC and ESD features
Added heat dissipation solution
Updated circuit of typical interface
Updated Function Overview
Updated definitions of pins
Updated recommended manufacturer of
EMI ferrite bead
Updated description of WAKEUP_OUT
signal
Updated Table 4-4 ME909u-521 conducted
Tx power
Added Co-exsitence with 5 GHz WIFI
Design Guide
About This Document
3