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HUAWEI MC509 CDMA LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 01 (2011-04-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
22
Figure 3-1 Bottom view of sequence of LGA interface pins
3.3 Power Interface
3.3.1 Overview
The power supply part of the MC509 module contains:
VBAT PIN for the power supply
VCOIN PIN for the standby power supply of the real-time clock (RTC)
VCC_EXT1 PIN for external power output
VCC_EXT2 PIN for external power output
UIM_VCC PIN for UIM card power output