unicore UM981 - Table of Contents

UM981 User Manual
I
Contents
1 Introduction ............................................................................................... 1
1.1 Key Features ..................................................................................................................... 2
1.2 Key Specifications ........................................................................................................... 2
1.3 Block Diagram .................................................................................................................. 5
2 Hardware ................................................................................................... 6
2.1 Pin Definition .................................................................................................................... 6
2.2 Electrical Specifications ............................................................................................... 10
2.2.1 Absolute Maximum Ratings ...................................................................................... 10
2.2.2 Operating Conditions ................................................................................................. 11
2.2.3 IO Threshold ............................................................................................................... 11
2.2.4 Antenna Feature ......................................................................................................... 12
2.3 Dimensions ................................................................................................................... 12
3 Hardware Design ..................................................................................... 14
3.1 Recommended Minimal Design ................................................................................... 14
3.2 Antenna Feed Design ................................................................................................... 15
3.3 Power-on and Power-off ............................................................................................. 16
3.4 Grounding and Heat Dissipation ................................................................................. 17
3.5 Recommended PCB Package Design ......................................................................... 17
4 Production Requirement.......................................................................... 18
5 Packaging ................................................................................................ 19
5.1 Label Description .......................................................................................................... 19
5.2 Product Packaging ....................................................................................................... 19