User's Manual

LE940B6 Hardware User Guide

1VV0301331 Rev. 1.8 - 2017-03-15

Telit Confidential Information, provided under NDA Page

9 of 104

List of Tables

Table 1: Applicability Table ................................................................................................................. 2

Table 2: Related Documents ............................................................................................................ 14

Table 3: Document Structure ........................................................................................................... 15

Table 4: RF Bands per Regional Variant ............................................................................................ 20

Table 5: RF Bands Characteristics ..................................................................................................... 21

Table 6: LE940B6 Pin-out .................................................................................................................. 26

Table 7: Mandatory Signals .............................................................................................................. 36

Table 8: Absolute Maximum Ratings – Not Operational .................................................................. 39

Table 9: Recommended Operating Conditions ................................................................................ 39

Table 10: Absolute Maximum Ratings – Not Functional .................................................................. 40

Table 11: Operating Range – Interface Levels (1.8V CMOS) ............................................................ 40

Table 12: Operating Range – 1.8V I2C Pads ..................................................................................... 41

Table 13: Operating Range – 1.2V EMIC Pads .................................................................................. 41

Table 14: Operating Range – 1.8V SIM Pads .................................................................................... 42

Table 15: Operating Range – 2.9V SIM Pads .................................................................................... 42

Table 16: Operating Range – USB_D+, USB_D- Pads ........................................................................ 42

Table 17: Absolute Maximum Ratings – 3.3V EMAC Interface......................................................... 43

Table 18: Operating Range – 2.5V EMAC Interface .......................................................................... 43

Table 19: Operating Range – 3.3V EMAC Interface .......................................................................... 43

Table 20: Power Supply Requirements ............................................................................................ 54

Table 21: LE940B6 Current Consumption ........................................................................................ 54

Table 22: Primary Antenna Requirements ...................................................................................... 63

Table 23: Antenna Line on PCB Requirements ................................................................................. 64

Table 24: LE940B6 Hardware Interfaces .......................................................................................... 69

Table 25: USB Interface Signals ........................................................................................................ 70

Table 26: Modem Serial Port 1 Signals ............................................................................................. 72

Table 27: Modem Serial Port 2 Signals ............................................................................................. 73

Table 28: Modem Serial Port 3 Signals ............................................................................................. 73

Table 29: SPI Signals ......................................................................................................................... 76

Table 30: Ethernet Interface ............................................................................................................. 77

Table 31: Analog Audio Signals ......................................................................................................... 78

Table 32: Digital Audio Interface (DVI) Signals ................................................................................. 79

Table 33: GPIOs ................................................................................................................................ 79

Table 34: Network Service Availability Indication ............................................................................ 82

Table 35: Operating Range – VAUX Power Supply ........................................................................... 83

Table 36: ADC Parameters ................................................................................................................ 83

Table 37: Recommendations for PCB Pad Surfaces ......................................................................... 88

Table 38: Solder Profile Characteristics ............................................................................................ 90

Table 39: SIM Interface – C1 Range .................................................................................................. 93