Table of Contents
Advertisement
Quick Links
NINA-B2 series
Stand-alone dual-mode Bluetooth modules
System Integration Manual
Abstract
This document describes the system integration of NINA-B2 series stand-alone Bluetooth®
modules. The NINA-B2 modules come with pre-flashed application software and support dual-
mode Bluetooth (Bluetooth BR/EDR and Bluetooth low energy). The module has many important
security features embedded, including secure boot, which ensures that only authenticated
software can run on the module. This makes NINA-B2 ideal for critical IoT applications where
security is important.
www.u-blox.com
UBX-18011096 - R03
Advertisement
Table of Contents
Related Manuals for Ublox NINA-B2 series
Summary of Contents for Ublox NINA-B2 series
- Page 1 System Integration Manual Abstract This document describes the system integration of NINA-B2 series stand-alone Bluetooth® modules. The NINA-B2 modules come with pre-flashed application software and support dual- mode Bluetooth (Bluetooth BR/EDR and Bluetooth low energy). The module has many important security features embedded, including secure boot, which ensures that only authenticated software can run on the module.
-
Page 2: Document Information
NINA-B2 series - System Integration Manual Document Information Title NINA-B2 series Subtitle Stand-alone dual-mode Bluetooth modules Document type System Integration Manual Document number UBX-18011096 Revision and date 28-Jan-2019 Disclosure Restriction Product status Corresponding content status Functional Sample Draft For functional testing. Revised and supplementary data will be published later. -
Page 3: Table Of Contents
System description ..........................5 1.1 Overview ................................ 5 1.1.1 Block diagram ............................5 1.2 Product description ............................ 6 1.2.1 Radio in NINA-B2 series ........................6 1.3 CPU................................. 6 1.4 Operating modes ............................6 1.4.1 Power modes ............................6 1.5 Supply interfaces ............................6 1.5.1 Module supply design (VCC) ...................... - Page 4 4.3.3 Other remarks ...........................23 Approvals ............................... 24 5.1 General requirements ..........................24 5.2 FCC/IC End-product regulatory compliance ..................24 5.2.1 NINA-B2 series FCC ID and IC certification number ..............24 5.2.2 Antenna requirements ........................24 Product testing ............................26 6.1 u-blox In-Series production test ......................26 6.2 OEM manufacturer production test .....................26...
-
Page 5: System Description
System description Overview The NINA-B2 series are small stand-alone dual-mode Bluetooth modules designed for ease-of-use and integration in professional applications where security is important. The modules are delivered with u-blox connectivity software, which provides support for both peripheral and central roles, Serial Port Profile, GATT client and server, beacons, u-blox Bluetooth low energy Serial Port Service –... -
Page 6: Product Description
* RF power including maximum antenna gain (3 dBi). Table 1: NINA-B2 series - Bluetooth characteristics 1.3 CPU The NINA-B2 series has a dual-core system with two Harvard Architecture Xtensa LX6 CPUs with maximum 240 MHz internal clock frequency. The internal memory of NINA-B2 includes the following: •... -
Page 7: Digital I/O Interfaces Reference Voltage (Vcc_Io)
(for example, 1.8 V or 3.3 V) without any level converters. The NINA-B2 modules support only 3.3 V as IO voltage level currently. 1.5.3 VCC application circuits The power for the NINA-B2 series modules is provided through the VCC pins, which can be one of the following: • Switching Mode Power Supply (SMPS) •... -
Page 8: Serial Interfaces
Table 2: NINA-B2 series boot strapping pins Serial Interfaces 1.7.1 Universal asynchronous serial interface (UART) The NINA-B2 series module provides a Universal Asynchronous Serial Interface (UART) for data communication. The following UART signals are available: • Data lines (RXD as input, TXD as output) •... -
Page 9: Antenna Interfaces
NINA-B2 series - System Integration Manual 1.8 Antenna interfaces The antenna interface is different for each module variant in the NINA-B2 series. 1.8.1 Antenna pin – NINA-B221 The NINA-B221 modules are equipped with an RF pin. The RF pin has a nominal characteristic impedance of 50 Ω... -
Page 10: Software
NINA-B2 series - System Integration Manual Software The NINA-B2 series module is delivered with the u-blox connectivity software. The u-blox connectivity software enables the use of Bluetooth, controlled by the AT commands over the UART interface. For more information on the features and capabilities of the u-blox connectivity... - Page 11 NINA-B2 series - System Integration Manual Figure 2: Software Update using s-center For more information about the parameters, see the Software update +UFWUPD command in u-blox Short Range Modules AT Commands Manual [1] and NINA-B2 Getting Started [4]. UBX-18011096 - R03...
-
Page 12: Design-In
Design-in 3.1 Overview For an optimal integration of NINA-B2 series modules in the final application board, it is recommended to follow the design guidelines stated in this chapter. Every application circuit must be properly designed to guarantee the correct functionality of the related interface, however a number of points require high attention during the design of the application device. -
Page 13: Antenna Interface
NINA-B2 series - System Integration Manual available pins to solid ground on the application board, as a good (low impedance) connection to an external ground can minimize power loss and improve RF and thermal performance. 3.3 Antenna interface As the unit cannot be mounted arbitrarily, the placement should be chosen with consideration so that it does not interfere with radio communication. - Page 14 NINA-B2 series - System Integration Manual are usually calculated using dedicated software and available stack-ups from production. It could also be possible to request an impedance coupon on panel’s side to measure the real impedance of the traces. • FR-4 dielectric material, although its high losses at high frequencies can be considered in RF designs provided that: RF trace length must be minimized to reduce dielectric losses.
-
Page 15: Antenna Design (Nina-B221)
NINA-B2 series - System Integration Manual 3.3.2 Antenna design (NINA-B221) Designers must take care of the antennas from all perspective at the beginning of the design phase when the physical dimensions of the application board are under analysis/decision, as the RF compliance of the device integrating NINA-B2 module with all the applicable required certification schemes heavily depends on the radiating performance of the antennas. - Page 16 NINA-B2 series - System Integration Manual Item Requirements Remarks 50 Ω nominal characteristic Impedance The impedance of the antenna RF connection must match the 50 Ω impedance of the ANT pin. impedance Frequency Range 2400 - 2500 MHz Bluetooth. Return Loss <...
- Page 17 NINA-B2 series - System Integration Manual • Cable length: Standard length is typically 100 mm or 200 mm; custom lengths may be available on request. Select shorter cables to minimize insertion loss. • RF connector on the other side of the cable: For example, another U.FL. (for board-to-board connection) or SMA (for panel mounting) Consider that SMT connectors are typically rated for a limited number of insertion cycles.
-
Page 18: On-Board Antenna Design (Nina-B222)
These general design guidelines are considered as best practices and are valid for any bus present in the NINA-B2 series modules; the designer should prioritize the layout of higher speed busses. Low frequency signals are generally not critical for layout. -
Page 19: General Considerations For Schematic Design And Pcb Floor-Planning
PCB, the ground ring must then be connected to other layers through vias. 3.6 Module footprint and paste mask The mechanical outline of the NINA-B2 series modules can be found in the NINA-B2 series Data Sheet [2] The proposed land pattern layout reflects the pads layout of the module. -
Page 20: Thermal Guidelines
3.7 Thermal guidelines The NINA-B2 series modules have been successfully tested in -40 °C to +85 °C. A good grounding should be observed for temperature relief during high ambient temperature. -
Page 21: Handling And Soldering
The bow and twist of the PCB is maximum 0.75% according to IPC-A-610E. The thickness of solder resist between the host PCB top side and the bottom side of the NINA-B2 series module must be considered for the soldering process. -
Page 22: Cleaning
NINA-B2 series - System Integration Manual The module is compatible with industrial reflow profile for RoHS solders. Use of "No Clean" soldering paste is strongly recommended. The reflow profile used is dependent on the thermal mass of the entire populated PCB, heat transfer efficiency of the oven, and particular type of solder paste used. -
Page 23: Other Remarks
NINA-B2 series - System Integration Manual • Cleaning with alcohol or other organic solvents can result in soldering flux residues flooding into the two housings, areas that are not accessible for post-wash inspections. The solvent will also damage the sticker and the ink-jet printed text. -
Page 24: Approvals
Commission (FCC), Industry Canada (IC) and the CE mark. This section provides the instructions that must be followed by an integrator while including NINA-B2 series into an end product. • Any changes to hardware, hosts or co-location configuration may require new radiated emission and SAR evaluation and/or testing. - Page 25 NINA-B2 series - System Integration Manual • Antennas of the same type and with less or same gain as an already approved antenna can be added under a Class I Permissive Change. • Antenna trace designs deviating from the u-blox reference design and new antenna types are added under a Class II Permissive Change.
-
Page 26: Product Testing
NINA-B2 series - System Integration Manual Product testing 6.1 u-blox In-Series production test u-blox focuses on high quality for its products. All units produced are fully tested automatically in production line. Stringent quality control process has been implemented in the production line. -
Page 27: Go/No Go" Tests For Integrated Devices
A basic RF functional test of the device including the antenna can be performed with standard Bluetooth low energy devices as remote stations. The device containing the NINA-B2 series module and the antennas should be arranged in a fixed position inside an RF shield box to prevent interferences from other possible radio devices to get stable test results. -
Page 28: Appendix
NINA-B2 series - System Integration Manual Appendix A Glossary Abbreviation Definition Access Point Automatic Test Equipment Band Pass Band Pass Filter Bluetooth Controller Area Network Central Processing Unit Clear To Send Direct Current Double Data Rate Data Set Ready Data Terminal Ready... -
Page 29: Related Documents
NINA-B2 series - System Integration Manual Related documents [1] u-blox Short Range AT Commands Manual, document number UBX-14044127 [2] NINA-B2 Series DataSheet, document number UBX-18006649 [3] u-blox Package Information Guide, document number UBX-14001652 [4] NINA-B2 Getting Started, document number UBX-18020603 ☞... -
Page 30: Contact
NINA-B2 series - System Integration Manual Contact For complete contact information, visit us at www.u-blox.com. u-blox Offices North, Central and South America Headquarters Asia, Australia, Pacific Europe, Middle East, Africa u-blox America, Inc. u-blox Singapore Pte. Ltd. u-blox AG Phone:...
Need help?
Do you have a question about the NINA-B2 series and is the answer not in the manual?
Questions and answers