Huawei ME909u-521 - Page 3

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