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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

Brand	u-blox
Model	NINA-B4 Series
Category	Wireless modules
Language	English

u-blox NINA-B4 Series User Manual

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u-blox NINA-B4 Series Specifications