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HUAWEI MU509-65 HSDPA LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 01 (2016-04-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
22
3.3 Power Interface
3.3.1 Overview
The power supply part of the MU509-65 module contains:
VBAT pins 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
USIM_VCC pin for USIM card power output
Table 3-2 lists the definitions of the pins on the power supply interface.
Table 3-2
Definitions of the pins on the power supply interface
Pin No.
Pin Name
Pad
Type
Description
Parameter
Min.
(V)
Typ.
(V)
Max.
(V)
Comments
12 and 13
VBAT
PI
Power supply
input
-
3.3
3.8
4.2
-
48, 50, 52,
54, 56, 58,
59, 106,
108, 110,
112, 114
and 116
GND
-
GND
-
-
-
-
-
35
VCOIN
PI
Coin cell input
-
1.5
3.0
3.25
-
32
VCC_EXT1
PO
Pin for
external power
output
-
1.65
1.8
1.95
-
31
VCC_EXT2
PO
Pin for
external power
output
-
2.5
2.6
2.7
-
34
USIM_VCC
PO
Power supply
for USIM card
-
1.65
1.8
1.95
USIM_VC
C=1.8 V
-
2.7
2.85
3.0
USIM_VC
C=2.85 V
121
–145
GND
-
Thermal
Ground Pad
-
-
-
-
-