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NINA-B3 series - System integration manual 

UBX-17056748 - R13 

System description

  

Page 14 of 72 

C1-Public 

Symbol

 

Analog function

 

Connects to

 

ADCP  

ADC single-ended or differential positive input 

Any analog pin or VCC 

ADCN  

ADC differential negative input 

Any analog pin or VCC  

VIN+ 

Comparator input 

Any analog pin 

VREF 

Comparator single-ended mode reference 
ladder input 

Any analog pin, VCC, 1.2 V, 1.8V or 2.4V 

VIN- 

Comparator differential mode negative input  

Any analog pin 

 

Low-power comparator IN+ 

Any analog pin 

LP_VIN- 

Low-power comparator IN- 

GPIO_16 or GPIO_18, 1/16 to 15/16 VCC in steps of 1/16 VCC 

Table 6: Possible uses of the analog pin 

1.9

 

Antenna interfaces 

 

The antenna interface is different for each module variant in the NINA-B3 series. 

1.9.1

 

Antenna pin 

 NINA-B3x1 

NINA-B3x1 is equipped with an RF pin. The RF pin has a nominal characteristic impedance of 50 

 and 

must  be  connected  to  the  antenna  through  a  50 

  transmission  line  to  allow  reception  of  radio 

frequency (RF) signals in the 2.4 GHz frequency band.  

Choose  an  antenna  with  optimal radiating  characteristics  for  the  best  electrical performance  and 
overall module functionality. An internal antenna integrated on the application board or an external 
antenna that is connected to the application board through a proper 50 

 connector can be used. 

While using an external antenna, the PCB-to-RF-cable transition must be implemented using either a 
suitable  50 

  connector,  or  an  RF-signal  solder  pad  (including  GND)  that  is  optimized  for  50 

 

characteristic impedance. 

 

Antenna matching  

For optimal performance, the antenna return loss should be as good as possible across the entire 
band  when  the  system  is  operational.  The  enclosure,  shields,  other  components  and  surrounding 
environment will impact the return loss seen at the antenna port. Matching components are often 
required to re-tune the antenna to bring the return loss within an acceptable range. 

It is difficult to predict the actual matching values for the antenna in the final form factor. Therefore, 
it is a good practice to have a placeholder in the circuit with a 

“pi” network, with two shunt components 

and a series component in the middle, to allow maximum flexibility while tuning the matching to the 
antenna feed. 

 

Approved antenna designs 

NINA-B3 modules come with a pre-certified design that can be used to save costs and time during the 
certification process. To take advantage of this service, the customer is required to implement an 
antenna layout according to the u-blox 

Antenna reference designs

. 

The designer integrating a u-blox reference design into an end-product is solely responsible for the 
unintentional emission levels produced by the end product. 

The module may be integrated with other antennas. In this case, the OEM installer must certify his 
design with the respective regulatory agencies. 

Содержание NINA-B3 Series

Страница 1: ...lic www u blox com NINA B3 series Stand alone Bluetooth 5 low energy modules System integration manual Abstract This document describes the system integration of the NINA B3 series stand alone Bluetoo...

Страница 2: ...Production Information NINA B302 Early Production Information NINA B306 Early Production Information NINA B306 01B is without external LFXO u connectXpress Product name Document status Comment NINA B3...

Страница 3: ...sensor 10 1 6 Debug Serial Wire Debug SWD 10 1 7 Serial interfaces 10 1 7 1 Universal Asynchronous Serial Interface UART 10 1 7 2 Serial Peripheral Interface SPI 11 1 7 3 Quad serial peripheral interf...

Страница 4: ...C interface 40 3 6 1 Battery protection 41 3 7 General High Speed layout guidelines 41 3 7 1 General considerations for schematic design and PCB floor planning 41 3 7 2 Module placement 42 3 7 3 Layou...

Страница 5: ...ct labelling requirement 55 5 5 KCC South Korean market 56 5 5 1 Compliance statement 56 5 5 2 End product labeling requirements 56 5 5 3 End product user manual requirements 57 5 6 Anatel Brazil comp...

Страница 6: ...at enable customer applications to run on the built in Arm Cortex M4 with FPU With 1 MB flash and 256 kB RAM they offer the best in class capacity for customer applications on top of the Bluetooth low...

Страница 7: ...anual UBX 17056748 R13 System description Page 7 of 72 C1 Public Table 1 NINA B30 series main features summary Regulations in the European market require the maximum output power of the radio to be li...

Страница 8: ...NINA B3 can be used either together with the pre flashed u connectXpress software or as an open CPU module where you can run your own application developed with the Nordic SDK development environment...

Страница 9: ...4 2 Digital I O interfaces reference voltage VCC_IO On NINA B3 series modules the I O voltage level is the same as the supply voltage and VCC_IO is internally connected to the supply input VCC When u...

Страница 10: ...es an external or hardware reset of the module The current parameter settings are not saved in the non volatile memory of the module and a proper network detach is not performed 1 5 2 Internal tempera...

Страница 11: ...pgrade The I O level of the UART will follow the VCC voltage and it can thus be in the range of 1 8 V and 3 6 V If you are connecting the NINA B3 module to a host with a different voltage on the UART...

Страница 12: ...state NINA B3 modules have 38 GPIO pins and no analog or digital interfaces All interfaces or functions must be allocated to a GPIO pin before use Eight of the 38 GPIO pins are analog enabled meaning...

Страница 13: ...ain a higher effective resolution Continuous sampling can be configured to sample at a configurable time interval or at different internal or external events without CPU involvement Table 5 Acquisitio...

Страница 14: ...hile using an external antenna the PCB to RF cable transition must be implemented using either a suitable 50 connector or an RF signal solder pad including GND that is optimized for 50 characteristic...

Страница 15: ...modules include a Near Field Communication interface capable of operating as a 13 56 MHz NFC tag at a bit rate of 106 kbps As an NFC tag data can be read from or written to the NINA B3 modules using a...

Страница 16: ...ecure boot loader and pre flashed u connectXpress software The u connectXpress software enables use of the Bluetooth Low Energy functions controlled by AT commands over the UART interface Some of the...

Страница 17: ...ware development kit documentation available at the Nordic Semiconductor Infocenter 14 The easiest way to get started with the Nordic SDK is to copy one of the examples in the SDK Choose an example th...

Страница 18: ...gnal pin define ARDUINO_13_PIN NRF_GPIO_PIN_MAP 0 7 define ARDUINO_12_PIN NRF_GPIO_PIN_MAP 0 2 define ARDUINO_11_PIN NRF_GPIO_PIN_MAP 0 15 define ARDUINO_10_PIN NRF_GPIO_PIN_MAP 0 14 define ARDUINO_9_...

Страница 19: ...ASPBERRY_PI_24_PIN NRF_GPIO_PIN_MAP 0 27 define RASPBERRY_PI_26_PIN NRF_GPIO_PIN_MAP 0 6 define RASPBERRY_PI_28_PIN NRF_GPIO_PIN_MAP 1 14 define RASPBERRY_PI_32_PIN NRF_GPIO_PIN_MAP 1 10 define RASPBE...

Страница 20: ...figuration in the Segger Studio project Figure 4 Add a build configuration to Segger Studio 2 Configure the build configuration to use your board definition Assuming that you are basing your project o...

Страница 21: ...RF Connect for Desktop application and from there install the nRF Connect SDK For more information see reference 23 2 If a command line environment is preferred see the Getting Started section on the...

Страница 22: ...cumentation 21 2 2 3 Saving Bluetooth MAC address and other production data Open CPU B30x variants of the NINA B3 module come with a pre programmed Bluetooth MAC address If needed this address can be...

Страница 23: ...el software description file name version flash address image size image id file permissions and signature file reference for the SoftDevice and ConnectivitySoftware applications Java Script Object No...

Страница 24: ...he serial interface using open source terminal emulator software that supports XMODEM like TeraTerm or ExtraPuTTy Alternatively you can send all AT commands described in this section using the s cente...

Страница 25: ...X SW 3 0 0 005 Address 0x26000 Size 0x4C95C Id 0x0 Permissions rwx SignatureFile NINA B31X SI 3 0 0 005 txt Label SoftDevice Description S140 softdevice from Nordic for NINA NRF File NINA S140 SD 6 1...

Страница 26: ...re marked in UNIX style rwx is the default flag for the u connectXpress software rw is the default flag for other binary images Table 7 Defined values for update parameters 2 3 1 2 1 Setting up the se...

Страница 27: ...ess software AT GMR 2 0 0 025 OK 3 Prepare the module to accept a binary file for download and start the bootloader at the appropriate baud rate Enter the Update software AT UFWUPD command together wi...

Страница 28: ...an send AT text commands to NINA B3 to execute tasks using open source terminal emulator software that supports XMODEM like TeraTerm or ExtraPuTTy Alternatively you can send all AT commands described...

Страница 29: ...sVpgv670y8FwH8LYFANspk5Yl DfOXwFcgqWKcHmN0lcKAt4b2ug u BItwsoQpbzwDnWLUwDJBIa6ZgsdLx kTUNW3hWdGvQuFIfwXk4NhvX 3RlIOmPqM shkN7tF4kaSeS aUp Ub81edKC57kQa8L0uWXVhRyI3OwoGkvXBMKoKVIphFgP6WwKdwanrI6TWID5I...

Страница 30: ...file transfer using XMODEM protocol Enter the configuration action command x with the ConnectivitySoftware values imageaddress imagesize imagename permissions and imageid defined in the NINA B31X CF...

Страница 31: ...external debugger SEGGER J Link BASE works with the NINA B30 modules The EVK NINA B30 evaluation kit incorporates an onboard debugger and can therefore be flashed without any external debugger See als...

Страница 32: ...w the NINA B3x6 PCB trace antenna and Asynchronous serial interface UART design guidelines 5 System functions RESET_N I2C GPIO and other System input and output pins Accurate design is required to ens...

Страница 33: ...trip track coupled to ground plane and side conductors separated by dielectric materials Strip track sandwiched between two parallel ground planes and separated by dielectric materials Figure 10 Trans...

Страница 34: ...yer Route RF transmission lines far from any noise source as switching supplies and digital lines and from any sensitive circuit to avoid crosstalk between RF traces and Hi impedance or analog signals...

Страница 35: ...tion should be considered if possible to maximize the performance and fulfill the requirements in Table 8 As a numerical example the physical restriction to the PCB design can be considered as shown b...

Страница 36: ...Hirose U FL Ultra Small Surface Mount Coaxial Connector Recommended I PEX MHF Micro Coaxial Connector Tyco UMCC Ultra Miniature Coax Connector Amphenol RF AMC Amphenol Micro Coaxial Lighthorse Techno...

Страница 37: ...acement of the antenna and its surroundings is also critical for antenna performance Avoid placing the antenna close to conductive or RF absorbing parts such as metal objects ferrite sheets and so on...

Страница 38: ...ch a way that the antenna is not subject to physical force NINA B3x6 PCB trace antenna The module shall be placed in the center of an edge of the host PCB A large ground plane on the host PCB is a pre...

Страница 39: ...ect RF performance a good connection of the module VCC pin with DC supply source is necessary Guidelines for the supply design are summarized below The VCC connection must be as wide and short as poss...

Страница 40: ...ule applies a 0 ON state low level when it is ready to receive transmission 3 5 2 Serial peripheral interface SPI The layout of the SPI bus should be made so that noise injection and cross talk are av...

Страница 41: ...between the battery and the device in order to protect the battery 3 7 General High Speed layout guidelines These general design guidelines are considered as best practices and are valid for any bus...

Страница 42: ...on the board Ground splitting is not allowed below the module Minimize the bus length to reduce potential EMI issues from digital buses All traces including low speed or DC traces must couple with a r...

Страница 43: ...nt and its interconnecting cable surfaces The applicability of ESD immunity test to the whole device depends on the device classification as defined by ETSI EN 301 489 1 Applicability of the ESD immun...

Страница 44: ...not touch any charged capacitors Be especially careful when handling materials like patch antennas 10 pF coaxial cables 50 80 pF m soldering irons or any other materials that can develop charges To pr...

Страница 45: ...l mass of the entire populated PCB the heat transfer efficiency of the oven and the type of solder paste that is used The optimal soldering profile that is used must be trimmed for each case depending...

Страница 46: ...ds with a module populated on them Boards with combined through hole THT components and surface mounted SMT devices may require wave soldering Only a single wave soldering process is allowed for board...

Страница 47: ...vailable in the NINA B3 Declaration of Conformity 15 Module integrators are required to make their own Declaration of Conformity in which test standards and directives that are tested and fulfilled by...

Страница 48: ...n of the transmit antenna must be considered for the EIRP calculation Implementation in the NINA B31 series In the u connectXpress software output power can be configured by using the Bluetooth config...

Страница 49: ...antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an exp...

Страница 50: ...tted in the FCC restricted band starting at 2483 5 MHz As a result channel 26 must not be used on the US Canadian market Implementation in NINA B31 series IEEE 802 15 4 is currently not supported in t...

Страница 51: ...nic of 2 4 GHz as declared in 47 CFR Part 15 33 b 1 The following requirements apply to all products that integrate a radio module Subpart B UNINTENTIONAL RADIATORS To verify that the composite device...

Страница 52: ...s y trouvent L tiquette d homologation d un module d Innovation Sciences et D veloppement conomique Canada devra tre pos e sur le produit h te un endroit bien en vue en tout temps En l absence d tiqu...

Страница 53: ...pareils radio exempts de licence L exploitation est autoris e aux deux conditions suivantes 1 l appareil ne doit pas produire de brouillage 2 l utilisateur de l appareil doit accepter tout brouillage...

Страница 54: ...esponsibility to make sure that the protocol uses at least 48 bit addressing Failure to comply with these requirements will void the NINA B3 Japan certification and it will be illegal to place the end...

Страница 55: ...low power radio frequency devices must be susceptible with the interference from legal communications or ISM radio wave radiated devices 5 4 2 End product labelling requirement When a product integrat...

Страница 56: ...LP197AT6 NINA B306 CCAI19LP1670T0 NINA B311 CCAI18LP197BT8 NINA B312 CCAI18LP197CT0 NINA B316 CCAI19LP1680T3 Table 13 NINA B3 series NCC ID certification numbers 5 5 KCC South Korean market 5 5 1 Comp...

Страница 57: ...ormation shall be placed in a prominent location in the instruction manual or pamphlet supplied to the user or alternatively shall be placed on the container in which the device is marketed In case wh...

Страница 58: ...the following website Independent Communications Authority of South Africa ICASA web site https www icasa org za 5 9 Integration checklist The following checklist can be used to get an overview of th...

Страница 59: ...s are fulfilled Specific to the South Korean market The end product labelling requirements are fulfilled The end product user manual requirements are fulfilled Specific to the Brazilian market The end...

Страница 60: ...e minimum cable loss to meet the regulatory requirements Minimum cable length 100 mm Comment The Reverse Polarity SMA connector can be mounted in a panel For information about integrating the U FL con...

Страница 61: ...everse Polarity SMA adapter cable An SMA version antenna is also available but not recommended for use Ex IT 2400 SMA 28 001 Approval FCC IC RED MIC NCC KCC ANATEL ACMA and ICASA Original part number...

Страница 62: ...deTM 2400 Manufacturer ProAnt Gain 3 0 dBi Impedance 50 Size 27 x 12 mm triangular Type Patch Cable length 100 mm Connector U FL connector Comment Should be attached to a plastic enclosure or part for...

Страница 63: ...est report for each unit can be generated Figure 29 shows the ATE typically used during u blox production u blox in line production testing includes Digital self tests firmware download MAC address pr...

Страница 64: ...cuit if the test result deviates that from that taken against a Golden Device The standard operational module firmware and test software on the host can be used to perform functional tests communicati...

Страница 65: ...Emitting Diode LFXO Low Frequency Crystal Oscillator MAC Media access control MISO Master input slave output MOSI Master output slave input MSL Moisture sensitivity level NFC Near Field Communication...

Страница 66: ...s IoT smart home automation devices to communicate on a local wireless mesh network THT Through Hole Technology TXD Transmit data UART Universal asynchronous receiver transmitter UICR User information...

Страница 67: ...g PCB layout must be identical to the one provided by u blox Implement one of the reference designs described in this section or contact u blox The designer must use the PCB stack up provided by u blo...

Страница 68: ...coplanar microstrip matched to 50 5 GND trace Minimum required top layer GND trace See also Figure 33 6 Copper keep out Keep this area free from any copper on the top layer Table 15 Included parts in...

Страница 69: ...n Table 16 the increased spacing to GND does not affect the trace impedance significantly for short trace lengths Therefore the impedance will still be close to 50 Figure 33 RF trace and minimum requi...

Страница 70: ...N 60950 1 2006 Information technology equipment Safety Part 1 General requirements 12 FCC Regulatory Information Title 47 Telecommunication 13 JESD51 Overview of methodology for thermal testing of sin...

Страница 71: ...19 fbro Updated u connectScript version to 1 0 1 and modified the product status for NINA B31x 20B to Initial Production Included information about Bluetooth MAC address section 2 2 3 Corrected inform...

Страница 72: ...ox com Regional Office China Beijing Phone 86 10 68 133 545 E mail info_cn u blox com Support support_cn u blox com Regional Office China Chongqing Phone 86 23 6815 1588 E mail info_cn u blox com Supp...

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