User's Manual

Smart Machine Smart Decision
SIM7020G_User Manual_V1.00 2 2019-01-15
Contents
Contents .............................................................................................................................................2
Table Index ........................................................................................................................................4
Figure Index ......................................................................................................................................6
1 Introduction ................................................................................................................................8
1.1 Product Outline .....................................................................................................................8
1.2 Hardware Interface Overview ...............................................................................................9
1.3 Hardware Block Diagram......................................................................................................9
1.4 Functional Overview ...........................................................................................................10
2 Package Information................................................................................................................ 11
2.1 Pin Assignment Overview ................................................................................................... 11
2.2 Pin Description ....................................................................................................................13
2.3 Mechanical Information ......................................................................................................16
2.4 Footprint Recommendation .................................................................................................17
2.5 Paste mask Recommendation ..............................................................................................18
3 Interface Application ...............................................................................................................19
3.1 Power Supply ......................................................................................................................19
3.2 Power Supply Design Guide ...............................................................................................19
3.3 Voltage Monitor...................................................................................................................22
3.4 Power on/Power off/Reset Function ....................................................................................22
3.4.1 Power on .......................................................................................................................22
3.4.2 Power off ......................................................................................................................24
3.4.3 Reset Function ..............................................................................................................25
3.5 UART Interface ...................................................................................................................26
3.5.1 UART Design Guide ....................................................................................................26
3.5.2 RI and DTR Behavior...................................................................................................28
3.6 USB Interface ......................................................................................................................28
3.7 SIM Interface ......................................................................................................................29
3.7.1 SIM Application Guide ................................................................................................30
3.8 Network status .....................................................................................................................31
3.9 ADC ....................................................................................................................................32
3.10 Power Supply Output .......................................................................................................32
3.11 I2C Interface ....................................................................................................................33
3.12 SPI Interface ....................................................................................................................34
4 RF Specifications ......................................................................................................................35
4.1 LTE RF Specifications ........................................................................................................35
4.2 LTE Antenna Design Guide ................................................................................................36
4.3 RF traces note ......................................................................................................................37
4.3.1 RF traces layout ............................................................................................................37
4.3.2 LTE ANT and other system ANT decoupling...............................................................39
5 Electrical Specifications ...........................................................................................................40