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NORA-W36 series - System integration manual 

UBX-22021120 - R01 

Module overview

  

Page 6 of 48 

C1-Public  

 

 

1

 

Module overview 

NORA-W36 series are small, stand-alone dual-band Wi-Fi and Bluetooth Low Energy microcontroller 
unit (MCU) modules 

 perfect for integrating wireless connectivity in end products. 

With Wi-Fi 4 (802.11a/b/g/n) in the 2.4 and 5 GHz bands, NORA-W36 can be used as Wi-Fi station 
that connects to a remote access point or otherwise act as an access point. NORA-W36 is qualified 
for Bluetooth 5.3 connectivity and can assume peripheral or central roles, or both simultaneously. It 
can also be a GATT client or server. 

Including pre-flashed u-connectXpress software, end-product integration is simplified, and time-to-
market reduced. The host controller configures and controls the wireless communication using high-
level AT commands without need for expertise in Wi-Fi and Bluetooth protocols stacks.  

The module embeds a dual-core MCU with a powerful Arm® Cortex®-M33 compatible processor for 
the main application and an Arm Cortex-M23 compatible core for low power operation. 

The  NORA-W36  series  includes  hardware  security  features  like  secure  boot,  trusted  execution 
environment  with  Arm  TrustZone®,  encrypted  flash,  protection  of  debug  port,  and  a  crypto 
acceleration  engine.  Wireless  communication  is  secure  with  WPA2/WPA3  authentication,  TLS 
1.2/1.3 encryption, Bluetooth LE secure connection pairing. 

NORA-W36 modules have the same size and position of critical pads and interfaces as other NORA 
modules. This offers maximum flexibility for the development of similar end-devices with different 
radio  technologies.  The  modules  support  operation  in  an  extended  temperature  range  of 

40°C  to 

+105°C and are qualified for professional grade applications. 

1.1

 

Module architecture 

NORA-W36  series  modules  are  based  on  the  Realtek  RTL8720DF  chip.  Module  variants  allow 
developers  to  select  either  an  external  antenna  with  NORA-W361  or  an  on-module  antenna  with 
NORA-W366. 

These  compact  modules  include  the  MCU,  flash  memory,  crystal,  and  other  components  for 
matching, filtering, antenna, decoupling, and antenna operation. 

The two variants of NORA-W36 series are described i

Table 1

. 

Variant / Ordering code 

Antenna configuration 

Antenna type 

NORA-W361-00B 

RF_ANT0: 2.4 GHz / 5 GHz Wi-Fi, 2.4 GHz Bluetooth LE 

Antenna pad 

NORA-W366-00B 

Combined 2.4 GHz / 5 GHz Wi-Fi, 2.4 GHz Bluetooth LE 

Single embedded PCB antenna 

Table 1: Supported configurations of the NORA-W36 series 

Summary of Contents for NORA-W36 Series

Page 1: ...ct cost efficient multi radio modules in the NORA form factor designed for a wide range of industrial applications This module series includes variants with or without an internal antenna These module...

Page 2: ...lished later Mass production End of life Production information Document contains the final product specification This document applies to the following products Product name Document status Comment N...

Page 3: ...Universal Asynchronous Receiver Transmitter 11 2 6 General purpose input output 11 2 7 u connectXpress software debug output 12 2 8 No connect pins 12 2 9 Ground GND pins 12 3 Design in 13 3 1 Overvie...

Page 4: ...y Assessed UKCA 32 6 4 FCC ISED End product regulatory compliance pending 32 6 4 1 United States compliance statement FCC 33 6 4 2 Canada compliance statement ISED 34 6 4 3 Referring to the u blox FCC...

Page 5: ...48 C1 Public 6 11 2 Pre approved antenna list 43 7 Product testing 45 7 1 u blox in line production testing 45 7 2 OEM manufacturer production test 46 7 3 Go No go tests for integrated devices 46 Appe...

Page 6: ...eatures like secure boot trusted execution environment with Arm TrustZone encrypted flash protection of debug port and a crypto acceleration engine Wireless communication is secure with WPA2 WPA3 auth...

Page 7: ...NORA W36 series System integration manual UBX 22021120 R01 Module overview Page 7 of 48 C1 Public 1 1 1 Block diagram Figure 1 NORA W36 series block diagram...

Page 8: ...uld be considered in the integration NORA W361 supports U FL connector pads for use with an external antenna which is mandatory if the application is hosted in a metal enclosure NORA W366 has an integ...

Page 9: ...as the idle current drops below a few milliamps This can have a negative impact on the life of a battery If decoupling capacitors are needed on the supply rails it is best practice to position these a...

Page 10: ...electrical performance and overall module functionality An internal antenna integrated on the application board or an external antenna connected to the application board through a proper 50 connector...

Page 11: ...e The UART interface support the following signals Data lines RXD as input TXD as output Hardware flow control lines CTS as input RTS as output You can use the UARTs in 4 wire mode with hardware flow...

Page 12: ...e DBG_TX pin at a baud rate of 115 200 bps The DBG_TX pin must be exposed and made available for u blox to debug the module should the need arise 2 8 No connect pins Don t connect No Connect NC pins T...

Page 13: ...layout design recommendations described in the General high speed layout guidelines System functions nRESET GPIO and other System input and output pins Careful utilization of these pins in the applic...

Page 14: ...rded by ground plane area on each side The characteristic impedance can be calculated as first iteration using tools provided by the layout software It is advisable to ask the PCB manufacturer to prov...

Page 15: ...fully be selected with minimum insertion losses Additional insertion loss will be introduced by low quality or long cable Large insertion loss reduces radiation performance o A high quality 50 coaxial...

Page 16: ...ce ANT requirements for NORA W361 Observe the following recommendations while selecting external or internal antennas Select antennas that provide optimal return loss based on the Voltage Standing Wav...

Page 17: ...ors require no conductive traces that is clearance a void area in the area below the connector between the GND land pads If the connector s RF pad size is wider than the micro strip remove the GND lay...

Page 18: ...When using a pi network a 10pF 0201 series capacitor similar to that shown as C14 in Figure 4 should be used Figure 4 NORA W361 approved U FL antenna connection 2D view 3 2 4 On board antenna design...

Page 19: ...products intended use case Keep a minimum clearance of 5 mm between the antenna and any casing Also keep at least 10 mm of free space around the metal antenna including the area directly below it If...

Page 20: ...edance traces a supplementary isolation of 4 W from other buses is recommended 3 4 1 Considerations for schematic design and PCB floor planning Verify which signal bus requires termination and add ser...

Page 21: ...traces Including low speed or DC traces must couple with a reference plane GND or power High speed buses should be referenced to the ground plane If designers need to change the ground reference some...

Page 22: ...re relief during high ambient temperature 3 7 ESD guidelines The immunity of devices integrating NORA W36 modules to Electro Static Discharge ESD is part of the Electro Magnetic Compatibility EMC conf...

Page 23: ...al coupling planes as defined in the CENELEC EN 61000 4 2 For the definition of integral antenna removable antenna antenna port and device classification see the ETSI EN 301 489 1 For contact and air...

Page 24: ...st PCB stack up and controlled impedance traces follow the recommendations given by the PCB manufacturer All pins are properly connected and the footprint follows u blox pin design recommendations Pro...

Page 25: ...ion over serial Bluetooth LE and Wi Fi interfaces Device configuration using Bluetooth LE or Wi Fi connected smartphones Secure cloud connection using TLS and MQTT protocols Using industry standard AT...

Page 26: ...W36 3 Click on Configure and select the software binary file 4 Click on Start to begin the software update 4 2 2 Updating with Terminal It is possible to start the XMODEM protocol used for file transf...

Page 27: ...ned a block of four MAC addresses The first Wi Fi MAC address base address is encoded in the Data Matrix on the label For data matrix details see the NORA W36 datasheet 2 and product labelling require...

Page 28: ...the device to ground When handling the RF pin don t touch any charged capacitors Be especially careful when handling materials like patch antennas 10 pF coaxial cables 50 80 pF m soldering irons or a...

Page 29: ...the thermal mass over the entire area of the fully populated host 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...

Page 30: ...boards with a module populated on it Boards with combined through hole technology THT components and surface mount technology SMT devices may require wave soldering to solder the THT components Only...

Page 31: ...In the end product the NORA W36 series module must be installed in such a way that only authorized antennas can be used For end products using the NORA W361 the end product must use the specified ant...

Page 32: ...nited Kingdom is made up of the Great Britain including England Scotland and Wales and the Northern Ireland Northern Ireland continues to accept the CE marking The following notice is applicable to Gr...

Page 33: ...f Conformity SdoC or to certify the product using an accredited test lab The description is a subset of the information found in applicable publications of FCC Office of Engineering and Technology OET...

Page 34: ...thorized modification could void authority to use this equipment This equipment complies with ISED RSS 102 radiation exposure limits set forth for an uncontrolled environment This equipment should be...

Page 35: ...all NORA W36 series variants is a single modular approval Due to ISED Modular Approval Requirements Source RSP 100 Issue 10 any application which includes the module must be approved by the module ma...

Page 36: ...If the authorized antennas and or antenna trace design cannot be used the new antenna and or antenna trace designs must be added to the grant file This is done by a Class I Permissive Change or a Clas...

Page 37: ...unauthorized modes of operation through accessible interfaces of the host product The modular transmitter must when installed into the host product have a regional setting that is compliant with autho...

Page 38: ...power radiated in the vertical direction This material shall be submitted to Laboratory Division Office of Engineering and Technology Federal Communications Commission 7435 Oakland Mills Road Columbi...

Page 39: ...mits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipm...

Page 40: ...nt End products based on NORA W36 series modules and targeted for distribution in Japan must be affixed with a label with the Giteki marking as shown in Figure 13 The Indoor use only information trans...

Page 41: ...end product End products based on NORA W36 series modules and targeted for distribution in Taiwan must carry labels with the textual and graphical elements shown below Contains Transmitter Module CCX...

Page 42: ...integrator must create a compliance folder containing all the relevant compliance test reports such as RF EMC electrical safety and DoC Declaration of Conformity It is the responsibility of the integr...

Page 43: ...everse Polarity SMA connector can be mounted in a panel Approval8 FCC ISED RED UKCA MIC KCC ANATEL RCM NCC and ICASA 6 11 2 Pre approved antenna list The following antennas are approved for use with N...

Page 44: ...ICASA AFG4507W2S 0200S Manufacturer Abracon Gain 6 6 dBi 2 4 GHz 8 1 dBi 5 GHz Impedance 50 Size HxWxL 45 0 x 7 8 x 0 2 mm Type Flat patch Comment For best performance the antenna should be attached...

Page 45: ...est report for each unit can be generated Figure 15 shows the ATE typically used during u blox production u blox in line production testing includes Digital self tests firmware download MAC address pr...

Page 46: ...den Device The standard operational module firmware and test software on the host can be used to perform functional tests communication with the host controller check interfaces and perform basic RF p...

Page 47: ...Science and Economic Development Canada KDB Knowledge DataBase of the FCC LDO Low Drop Out LE Low Energy LGA Land Grid Array MAC Media Access Control MCU MicroController Unit MSL Moisture Sensitivity...

Page 48: ...tters ERM ElectroMagnetic Compatibility EMC standard for radio equipment and services Part 1 Common technical requirements EN 301 489 1 v2 2 3 7 ETSI Audio video information and communication technolo...

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