Power Supply Features; Input Power Supply - Huawei ME909 Series Hardware Manual

HUAWEI ME909 Series Mini PCIe Module
Hardware Guide
Parameter
V
IL
V
OH
V
OL

5.6 Power Supply Features

5.6.1 Input Power Supply

‎ T able 5-5 lists the requirements for input power of the ME909 module.
Table 5-5 Requirements for input power for the ME909 module
Parameter
VCC_3V3
Figure 5-1 Power Supply During Burst Emission
Table 5-6 Requirements for input current of the ME909 module
Power
VCC_3V3
Issue 0.1 (2013-06-09)
Description
Logic low-level
input voltage
Logic high-level
output voltage
Logic low-level
output voltage
Min.
3.0
The VCC_3V3 minimum value must be guaranteed during the burst (with 2.7 A Peak in GSM 2
slot mode). So A low-dropout (LDO) regulator or switch power with current output of more than
3.5 A is strongly recommended for external power supply.
Module
ME909
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Minimum Value
–0.3
–0.45
V
DD_PX
0
Typ. Max.
3.3 3.6
Peak (GSM 2 Normal
slot) (WCDMA)
2750 mA 1100mA
Electrical and Reliability Features
Maximum Value
0.35 x V
DD_PX
V
DD_PX
0.45
Ripple
0.05
Normal (LTE
23dbm)
1200 mA
Unit
V
V
V
Unit
V
36