HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
1 Introduction.................................................................................................................................... 8
2 Overall Description ...................................................................................................................... 9
2.1 About This Chapter ........................................................................................................................... 9
2.2 Function Overview............................................................................................................................ 9
2.3 Circuit Block Diagram ...................................................................................................................... 11
3.1 About This Chapter ......................................................................................................................... 13
3.2 LGA Interface ................................................................................................................................. 13
3.3 Power Interface .............................................................................................................................. 25
3.3.1 Overview ................................................................................................................................ 25
3.4 Signal Control Interface .................................................................................................................. 27
3.4.1 Overview ................................................................................................................................ 27
3.4.3 RESIN_N Pin ......................................................................................................................... 29
3.4.4 WAKEUP_IN Signal............................................................................................................... 31
3.4.5 WAKEUP_OUT Signal ........................................................................................................... 31
3.4.6 SLEEP_STATUS Signal ........................................................................................................ 32
3.4.7 LED_MODE Signal ................................................................................................................ 33
3.5 UART Interface ............................................................................................................................... 34
3.5.1 Overview ................................................................................................................................ 34
3.6 USB Interface ................................................................................................................................. 35
3.7 USIM Card Interface ...................................................................................................................... 37
3.7.1 Overview ................................................................................................................................ 37
3.8 Audio Interface ............................................................................................................................... 39
3.10 JTAG Interface ............................................................................................................................. 41
3.11 RF Antenna Interface.................................................................................................................... 42
Issue 05 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Contents
Contents
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