User Guide

LM960 HW Design Guide
1VV0301485 Rev. 15 Page 8 of 88 2020-08-13
6.3.2.2. Fast Shutdown by GPIO ............................................................. 47
6.3.3. Unconditional Shutdown ............................................................. 48
Reset .......................................................................................... 49
6.4.1. Graceful Reset ............................................................................ 50
6.4.2. Unconditional Hardware Reset ................................................... 50
Dying Gasp ................................................................................. 51
Communication ports .................................................................. 52
6.6.1. USB Interface ............................................................................. 52
6.6.2. SIM Interface .............................................................................. 55
6.6.2.1. SIM Schematic Example ............................................................. 56
6.6.3. Control Signals ........................................................................... 56
6.6.3.1. W_DISABLE_N........................................................................... 57
6.6.3.2. WAN_LED_N .............................................................................. 57
6.6.4. General Purpose I/O ................................................................... 58
6.6.4.1. Using a GPIO Pin as Input .......................................................... 59
6.6.4.2. Using a GPIO Pin as Output ....................................................... 59
6.6.4.3. Dedicated I/O .............................................................................. 59
6.6.5. I2C – Inter-integrated circuit ........................................................ 60
Using the Temperature Monitor Function .................................... 61
7. RF SECTION .............................................................................. 62
Antenna requirements................................................................. 62
Primary Antenna Requirements .................................................. 62
Secondary Antenna Requirements ............................................. 63
GNSS Receiver .......................................................................... 64
7.4.1. GNSS RF Front End Design ....................................................... 64
Antenna connection .................................................................... 65
7.5.1. Support bands on antenna ports ................................................. 65
7.5.2. Antenna Connector ..................................................................... 66
7.5.3. Antenna Cable ............................................................................ 66
7.5.4. Antenna Installation Guidelines ................................................... 66
8. MECHANICAL DESIGN ............................................................. 68
General ....................................................................................... 68
Finishing & Dimensions .............................................................. 68
Drawing ...................................................................................... 68