Power Supply Features; Input Power Supply - Huawei MC509 Hardware Manual

HUAWEI MC509 CDMA Mini PCIe Module
Hardware Guide
Table 5-2 Operating and storage temperatures for the MC509 Mini PCIe module
Specification
Normal working temperatures
Extended temperatures
Ambient temperature for storage

5.4 Power Supply Features

5.4.1 Input Power Supply

Table 5-3 lists the requirements for input power of the MC509 Mini PCIe module.
Table 5-3 Requirements for input power for the MC509 Mini PCIe module
Parameter
VCC_3V3
Figure 5-1 Power Supply During Burst Emission
Issue 03 (2014-12-26)
[1]
[1]: When the MC509 Mini PCIe module works in the range of –30°C to –20°C or +60°C to

+70°C, NOT all its RF performances comply with 3GPP2 specifications.
The thermal design must be implemented according to the chapter 6.8 . If not, the overheat

protection mechanism will be triggered due to overheated Mini PCIe and the network
connection will be terminated.
Min.
3.0
The VCC_3V3 minimum value must be guaranteed during the burst. 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.
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Min.
–20
–30
–40
Typ. Max.
3.3 3.6
Electrical and Reliability Features
Max.
+60
+70
+85
Ripple
0.05
Unit
°C
°C
°C
Unit
V
34