7.2 MS2131 Power Supply ....................................................................................................................................................... 26
7.3 MS2131 Power Requirements in 2G Mode ...................................................................................................................... 26
7.4 MS2131 Power Requirements in 3G Mode ...................................................................................................................... 28
7.5 MS2131 Power Consumption Features ............................................................................................................................. 29
7.6 Peripheral Power Design Requirements ............................................................................................................................ 29
7.6.1 Recommended Power Supply Structure ......................................................................................................................... 29
7.6.2 Derating Requirements .................................................................................................................................................... 30
7.6.3 Peripheral Power Supply Design Rules.......................................................................................................................... 30
8 MS2131 PCB Design Guide ................................................................................................ 31
8.1 General PCB Design Rules ................................................................................................................................................ 31
8.2 Power Design ...................................................................................................................................................................... 31
8.3 Cable Routing Rules ........................................................................................................................................................... 32
8.3.1 Power Design ................................................................................................................................................................... 32
8.3.2 USB Signal Cable Routing Design ................................................................................................................................. 32
8.3.3 Grounding Measure ......................................................................................................................................................... 33
9 MS2131 ESD Design Guide ................................................................................................ 34
9.1 PCB Design Recommendations for the Host .................................................................................................................... 34
9.2 Shell Design Recommendations for the Host ................................................................................................................... 34
10 MS2131 Electrical and Reliability Features ..................................................................... 35
10.1 About This Chapter ........................................................................................................................................................... 35
10.2 Ultra Working Conditions ................................................................................................................................................ 35
10.3 Working and Storage Environment.................................................................................................................................. 36
10.4 Power Features .................................................................................................................................................................. 36
10.4.1 Input Power .................................................................................................................................................................... 36
10.4.2 Working Current ............................................................................................................................................................ 36
10.5 Reliability Features ........................................................................................................................................................... 36
11 Appendix ............................................................................................................................ 40
11.1 Appendix One MS2131 Power Consumption Data in Different Scenarios .................................................................. 40
11.2 Appendix Two MS2131 OTA Data .................................................................................................................................. 42
11.3 Appendix Three MS2131 Thermal Test........................................................................................................................... 44
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