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HUAWEI MU736 HSPA+ M.2 Module
Hardware Guide
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
Voltage
4.4 V
3.3 V
3.135 V
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 .
Issue 05 (2014-01-14)
MU736
3.3V
330pF
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
100nF
1µF
Do not drop below 3.135 V, during 2G TX.
The maximum current may be 2.5 A.
3.3V
22µF
220µF
Time
19
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