u-blox NINA-B4 Series - Contents; Table of Contents

NINA-B4 series - System integration manual
UBX-19052230 - R06 Contents Page 3 of 45
C1-Public
Contents
Document information ............................................................................................................................. 2
Contents ....................................................................................................................................................... 3
1 Functional description ....................................................................................................................... 5
1.1 Overview ........................................................................................................................................................ 5
1.2 Applications ................................................................................................................................................. 6
1.3 Block diagrams ............................................................................................................................................ 7
1.3.1 NINA-B40 .............................................................................................................................................. 7
1.3.2 NINA-B41 .............................................................................................................................................. 8
1.4 Product description .................................................................................................................................... 9
1.4.1 NINA-B40 series .................................................................................................................................. 9
1.4.2 NINA-B41 series .................................................................................................................................. 9
1.5 Hardware options ........................................................................................................................................ 9
1.6 Software options ....................................................................................................................................... 10
1.6.1 Open CPU............................................................................................................................................ 11
1.6.2 u-connectXpress software ............................................................................................................. 11
1.7 Bluetooth device address ........................................................................................................................ 12
1.8 Pin configurations and functions .......................................................................................................... 12
1.8.1 NINA-B40 pins ................................................................................................................................... 12
1.8.2 NINA-B41 pins ................................................................................................................................... 13
1.9 Low power clock ........................................................................................................................................ 13
1.9.1 External crystal ................................................................................................................................. 14
1.9.2 Internal oscillator .............................................................................................................................. 14
1.9.3 External clock source ....................................................................................................................... 14
2 Design-in ............................................................................................................................................. 15
2.1 NINA family migration design................................................................................................................. 15
2.2 Supply interfaces ...................................................................................................................................... 15
2.2.1 Main supply input ............................................................................................................................. 15
2.2.2 Digital I/O interfaces reference voltage (VCC_IO) ...................................................................... 15
2.2.3 VCC application circuits .................................................................................................................. 15
2.3 Antenna interface ..................................................................................................................................... 16
2.3.1 External antenna selection ............................................................................................................. 17
2.3.2 NINA-B4x6 design-in ........................................................................................................................ 21
2.4 NFC interface ............................................................................................................................................. 22
2.4.1 Battery protection ............................................................................................................................ 23
2.5 Debug interface ......................................................................................................................................... 23
2.6 General layout guidelines ........................................................................................................................ 24
2.6.1 General considerations for schematic design and PCB floor-planning ................................. 24
2.6.2 Layout and manufacturing ............................................................................................................. 24
2.6.3 Thermal guidelines ........................................................................................................................... 25
2.6.4 ESD guidelines ................................................................................................................................... 25