Ublox NINA-B50 Series, Hardware Integration Manual

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NINA-B50 series - Hardware integration manual
UBX-22021116 - R02 Contents Page 3 of 57
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Contents
Document information ................................................................................................................................ 2
Contents .......................................................................................................................................................... 3
1 Product overview ................................................................................................................................... 6
1.1 Module architecture ................................................................................................................................... 6
1.2 Block diagram .............................................................................................................................................. 7
2 Module integration ................................................................................................................................ 8
2.1 Power Supply ................................................................................................................................................ 9
2.1.1 Power switch ........................................................................................................................................ 9
2.1.2 DCDC, digital I/O and system input supply (VCC_IO) ................................................................10
2.1.3 VCC application circuits ..................................................................................................................10
2.1.4 Battery ................................................................................................................................................10
2.1.5 Power supply configuration ............................................................................................................11
2.2 System functions ......................................................................................................................................12
2.2.1 Power modes .....................................................................................................................................12
2.2.2 Module reset ......................................................................................................................................12
2.2.3 Real Time Clock (RTC) .....................................................................................................................13
2.3 Antenna integration .................................................................................................................................14
2.3.1 Antenna solutions ............................................................................................................................14
2.3.2 Approved antenna designs .............................................................................................................15
2.4 Data interfaces ..........................................................................................................................................15
2.4.1 Low Power Universal Asynchronous Receiver/Transmitter (LPUART) .................................15
2.4.2 Low Power Serial peripheral interface (LPSPI) ...........................................................................15
2.4.3 Low Power Inter-Integrated Circuit (LPI2C) ................................................................................16
2.4.4 Improved Inter-Integrated Circuit (I3C)........................................................................................16
2.4.5 Inter-IC Sound interface (I2S) ........................................................................................................16
2.5 Other Digital interfaces ...........................................................................................................................17
2.5.1 Timer/ PWM Module (TPM) ............................................................................................................17
2.5.2 Quadrature Decoder (QDEC) ..........................................................................................................17
2.6 Analog interfaces ......................................................................................................................................17
2.7 Debug interfaces .......................................................................................................................................17
2.7.1 SWD .....................................................................................................................................................17
2.7.2 DAP ......................................................................................................................................................18
2.7.3 SWO .....................................................................................................................................................18
3 Design-in ................................................................................................................................................ 19
3.1 Overview ......................................................................................................................................................19
3.2 RF interface ................................................................................................................................................19
3.2.1 Antenna integration .........................................................................................................................19
3.2.2 RF transmission line design ...........................................................................................................21
3.2.3 NINA-B501 .........................................................................................................................................22