HUAWEI MU736 HSPA+ M.2 Module
Hardware Guide
Description of the Application Interfaces
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Figure 3-2 Recommended power circuit of the MU736 module
3.3V pin must never be under 3.135 V during the 2G transmitting burst, as shown in Figure 3-3 .
Figure 3-3 VCC drop during 2G transmitting
If customer wants to power cycle MU736, the 3.3V pin must stay below 1.8 V for more
than 100 ms. The sequence is shown as in Figure 3-4 .
Do not drop below 3.135 V, during 2G TX.
The maximum current may be 2.5 A.
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