Power Interface; Sources And Grounds - Huawei MU709 Series Hardware Manual

HUAWEI MU709 Series HSPA+ Mini PCIe Module
Hardware Guide
Pin Pin Name
No.
Mini PCI HUAWEI
Express Pin
Standard Description
Description
52 3.3Vaux VCC_3V3




3.3 Power Interface

3.3.1 Sources and Grounds

For the Mini PCIe Adapter, +3.3Vaux is the only voltage supply that is available. The
input voltage is 3.3 V±9%, as specified by
Specification Revision 1.2.
Table 3-2 Power and ground specifications
Pin No.
2, 24, 39, 41 and 52
4, 9, 15, 18, 21, 26, 27,
29, 34, 35, 37, 40, 43
and 50
To minimize the RF radiation through the power lines, it is suggested to add ceramic capacitors
of 10 pF and 100 nF in the power lines beside the Mini PCIe connector on the host side.
Pad Description
Type
PI 3.3 V DC
supply input
P indicates power pins; I indicates pins for digital signal input; O indicates pins for digital
signal output; PO indicates power output pins; PI indicates power input pins.
V indicates Low-level Input voltage; V
IL
Low-level Output voltage; V
The NC pins are floating and there are no signal connected to these pins. Therefore, these
pins should not be used.
Pin Name Pad Descriptiom
Type
VCC_3V3 PI 3.3 V DC supply input
GND - Ground
Description of the Application Interfaces
Parameter Min.
(V)
- 3.0
indicates High-level Input voltage; V
IH
indicates High-level Output voltage.
OH
PCI Express Mini Card Electromechanical
Min.(V)
3.0
-
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
Issue 04 (2015-06-25)
Typ. Max. Comments
(V) (V)
3.3 3.6 -
indicates
OL
Typ .(V) Max.(V)
3.3 3.6
- -
16