User's Guide

LE910Cx Hardware User Guide
1VV0301298 Rev. 1.01 - 2016-02-16
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List of Figures
Figure 1: LE910Cx Block Diagram ..................................................................................................... 21
Figure 2: LGA Pads Layout ................................................................................................................ 41
Figure 3: LE910Cx vs. LE910 Pin-out Comparison (top view) ........................................................... 42
Figure 4: Power-on Circuit ................................................................................................................ 48
Figure 5: LE910Cx Initialization and Activation ................................................................................ 49
Figure 6: Shutdown by Software Command ..................................................................................... 50
Figure 7: Hardware Shutdown .......................................................................................................... 51
Figure 8: Circuit for Unconditional Hardware Shutdown ................................................................. 52
Figure 9 Power down timing using HW_SHUTDOWN_N ................................................................. 52
Figure 10: Example of Linear Regulator with 5V Input ..................................................................... 56
Figure 11: Example of Switching Regulator with 12V Input – Part 1 ................................................ 57
Figure 12: Example of Switching Regulator with 12V Input – Part 2 ................................................ 57
Figure 13: RS232 Level Adaption Circuitry Example ......................................................................... 72
Figure 14: RS232 Serial Port Lines Connection Layout ..................................................................... 73
Figure 15: SPI Signal Connectivity ..................................................................................................... 74
Figure 16: SD/MMC Interface Connectivity ...................................................................................... 76
Figure 17: Primary PCM Timing ........................................................................................................ 79
Figure 18: Auxiliary PCM Timing ....................................................................................................... 81
Figure 19: GPIO Output Pad Equivalent Circuit ................................................................................ 86
Figure 20: Status LED Reference Circuit ........................................................................................... 87
Figure 20: LE910Cx Mechanical Dimensions (bottom view) ............................................................ 91
Figure 21: LE910Cx Mechanical Dimensions (Top view) .................................................................. 92
Figure 22: LE910Cx Mechanical Dimensions (Side view) .................................................................. 93
Figure 22: Recommended Footprint - Top View, 181 pads (dimensions are in mm, top view). ...... 94
Figure 23: PCB Pad Design ................................................................................................................ 95
Figure 24: PCB Pad Dimensions ........................................................................................................ 96
Figure 25: Solder Reflow Profile ....................................................................................................... 97
Figure 26: SIM Schematics .............................................................................................................. 101
Figure 27: Packing ........................................................................................................................... 104
Figure 28: Tray Drawing .................................................................................................................. 105
Figure 29: Module Positioning into the Carrier .............................................................................. 106
Figure 30: Carrier Tape Detail ......................................................................................................... 106
Figure 31: Reel Detail ...................................................................................................................... 107
Figure 32: Reel Box Detail ............................................................................................................... 108