YCP-MB1863000NUCLEO-WBA52CG

Introduction NUCLEO-WBA52CG is a Bluetooth ® Low Energy wireless and ultra-low-power board embedding a powerful and ultra‑low‑power radio compliant with the Bluetooth ® Low Energy SIG specification v5.4. The ARDUINO ® Uno V3 connectivity support and the ST morpho headers allow the easy expansion of the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields. Figure 1. NUCLEO-WBA52CG global view Picture is not contractual. STM32WBA Nucleo-64 board (MB1863) UM3103 User manual UM3103 - Rev 4 - May 2024 For further information contact your local STMicroelectronics sales office. www.st.com 1 Features •Ultra-low-power wireless STM32WBA52CG microcontroller based on the Arm ® Cortex ® ‑M33 core, featuring 1 Mbyte of flash memory and 128 Kbytes of SRAM in a UFQFPN48 package •MCU RF board ( MB1863): – 2.4 GHz RF transceiver supporting Bluetooth ® specification v5.4 – Arm ® Cortex ® ‑M33 CPU with Arm ® TrustZone ® , MPU, DSP, and FPU – Integrated PCB antenna •Three user LEDs •Three user and one reset push-buttons •Board connectors: – USB Micro-B – ARDUINO ® Uno V3 expansion connector – ST morpho headers for full access to all STM32 I/Os •Flexible power-supply options: ST-LINK USB V BUS or external sources •On-board STLINK-V3MODS debugger/programmer with USB re-enumeration capability: mass storage, V irtual COM port, and debug port •Comprehensive free software libraries and examples available with the STM32CubeWBA MCU Package •Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded Workbench ® , MDK-ARM, and STM32CubeIDE Note:Arm and TrustZone are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere. UM3103 Features UM3103 - Rev 4 page 2/40 2 Ordering information To order the NUCLEO-WBA52CG board, refer to Table 1. Additional information is available from the datasheet and reference manual of the target microcontroller. Table 1. List of available products Order codeBoard referenceTarget STM32 NUCLEO-WBA52CG • MB1801 (1) • MB1863 (2) STM32WBA52CG 1. Mezzanine board 2. MCU RF board 2.1 Codification The meaning of the codification is explained in Table 2. Table 2. Codification explanation NUCLEO- XXXYYZTDescriptionExample: NUCLEO-WBA52CG XXXMCU series in STM32 32-bit Arm Cortex MCUsSTM32WBA series YYMCU product line in the seriesSTM32WBAx2 product line Z STM32 package pin count: • C for 48 pins 48 pins T STM32 flash memory size: • G for 1 Mbyte 1 Mbyte UM3103 Ordering information UM3103 - Rev 4 page 3/40 3 Development environment 3.1 System requirements •Multi‑OS support: Windows ® 10, Linux ® 64-bit, or macOS ® •USB Type-A or USB Type-C ® to Micro-B cable Note: macOS ® is a trademark of Apple Inc., registered in the U.S. and other countries and regions. Linux ® is a registered trademark of Linus Torvalds. Windows is a trademark of the Microsoft group of companies. 3.2 Development toolchains •IAR Systems ® - IAR Embedded Workbench ® (1) •Keil ® - MDK-ARM (1) •STMicroelectronics - STM32CubeIDE 1. On Windows ® only. 3.3 Demonstration software The demonstration software, included in the STM32Cube MCU Package corresponding to the on-board microcontroller, is preloaded in the STM32 flash memory for easy demonstration of the device peripherals in standalone mode. The latest versions of the demonstration source code and associated documentation can be downloaded from www.st.com. UM3103 Development environment UM3103 - Rev 4 page 4/40 4 Conventions Table 3 provides the conventions used for the ON and OFF settings in the present document. Table 3. ON/OFF convention ConventionDefinition Jumper JPx ONJumper fitted Jumper JPx OFFJumper not fitted Jumper JPx [1-2]Jumper fitted between Pin 1 and Pin 2 Solder bridge SBx ONSBx connections closed by 0 Ω resistor Solder bridge SBx OFFSBx connections left open Resistor Rx ONResistor soldered Resistor Rx OFFResistor not soldered Capacitor Cx ONCapacitor soldered Capacitor Cx OFFCapacitor not soldered UM3103 Conventions UM3103 - Rev 4 page 5/40 5 Safety recommendations 5.1 Targeted audience This product targets users with at least basic electronics or embedded software development knowledge like engineers, technicians, or students. This board is not a toy and is not suited for use by children. 5.2 Handling the board This product contains a bare printed circuit board. Like all products of this type, the user must pay attention to the following points: •The connection pins on the board might be sharp. Be careful when handling the board to avoid hurting yourself •This board contains static‑sensitive devices. T o avoid damaging it, handle the board in an ESD‑proof environment. •While powered, do not touch the electric connections on the board with your fingers or anything conductive. The board operates at voltage levels that are not dangerous, but components could be damaged when shorted. •Do not put any liquid on the board and avoid operating the board close to water or at a high humidity level. •Do not operate the board if dirty or dusty. UM3103 Safety recommendations UM3103 - Rev 4 page 6/40 6 Quick start This section describes how to start development quickly using NUCLEO-WBA52CG. To use the product, you must accept the evaluation product license agreement from the www.st.com/epla webpage. Before the first use, make sure that no damage occurred to the board during shipment: •All socket components must be firmly secured in their sockets. •Nothing must be loose in the board blister. The Nucleo board is an easy-to-use development kit to evaluate quickly and start development with an STM32 microcontroller in a UFQFPN48 package. 6.1 Getting started Follow the sequence below to configure the STM32WBA52CG board and launch the demonstration application (refer to Figure 3 and Figure 5 for component location): 1. Check jumper positions on board: JP2 ON, JP1 on USB_STLK [1-2]. 2. Check that switch SW1 is on the 3V3 power supply. 3. Install ST Bluetooth ® Low Energy sen…

Text truncated - open the document above for the full version.

ST Confidential CERTIFICATIONS CONCERNING “COVERED” EQUIPMENT Date: September 6, 2023 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046 FCC ID: YCP-MB1863000 To Whom It May Concern: As required by section 2.911(d)(5)(i), STMICROELECTRONICS (Rousset) SAS, FRN 0019756717 (“the applicant”) certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. As required by section 2.911(d)(5)(ii), STMICROELECTRONICS (Rousset) SAS, FRN 0019756717 (“the applicant”) certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Thank you for your attention to this matter. Sincerely yours, Signature Printed Name: Pascal Scafidi Company: STMICROELECTRONICS (Rousset) SAS Job Title: MDG Quality & Reliability Email: [email protected] Telephone: +33 4 76 58 50 00

Page 1/1 EXTERNAL PHOTOS OF TESTED EUT Applicant: STMicroelectronics SAS Device PMN: NUCLEO-WBA52CG Model: MB1863A-03

Page 1/1 PRODUCT LABELING Applicant: STMicroelectronics SAS Device PMN: NUCLEO-WBA52CG Model: MB1863A-03

Page 1/1 INTERNAL PHOTOS OF TESTED EUT Applicant: STMicroelectronics SAS Device model: NUCLEO-WBA52CG Model: MB1863A-03 Cover removed (RF part) Rear side of MB1863A MB1801A (MB1803A disconnected)

COORDONNEES SMEE TEL : 04 76 65 76 50 385, Rue Renè Rambaud, ZA le Parvis 2 FAX : 04 76 66 18 30 38500 VOIRON - France SAS au capital de 50 000 € / RC Grenoble B534 796 453 / SIRET 534 796 453 00023 / code APE 7490B / n° TVA : FR 59 534 796 453 RF Exposure Considerations for FCC ID: YCP-MB1863000 The calculation of the MPE is as following: Prediction of MPE limit at a prediction distance: S= ² . . 4 . R G P  = ² . . 4 . . . R P R I E  S: Power density (mW/cm²) P: Peak output power at antenna terminal (mW) G: Numerical Antenna gain R: Distance of radiation to antenna (cm) MPE calculation (1): Power value is taken from measured EIRP (2): No simultaneous RF transmission Conclusion: Therefore, the device complies with FCC’s RF radiation exposure limits for general population for a mobile device. Certified By Laurent CHAPUS (Agent for this device) SMEE 385, Rue René Rambaud ZA Le Parvis 2 38500 Voiron - France [email protected] FCC Registration Number: 0020356952 (FRN) Applicant for this device: STMicroelectronics (Rousset) SAS 190 Avenue Celestin Coq 13106 ROUSSET – France FRN: 0019756717 Frequency (MHz) Maximum E.I.R.P. (mW) (1) R (cm) Power Density S (mW/cm²) MPE limit (mW/cm²) % of limit Limit (%) Verdict 2402-2480 7.2 20 0.00143 1 0.143 100% Below MPE limit for uncontrolle d exposure Simultaneous transmissions SUM = N/A (2) 100%

Introduction This application note is dedicated to the STM32WB Series microcontrollers. One of the main reasons to use a PCB (printed circuit board) antenna is the reduced overall cost of the radio module. Well designed and implemented PCB-printed antennas have a similar performance to the SMD (surface-mounted device) ceramic equivalence. In general, the footprint for a ceramic SMD antenna is smaller than that for a PCB-printed variant. For a PCB-printed antenna solution, the increased size of the PCB in relation to space required for the antenna means that the radio module is larger and the cost of the PCB increased. However the PCB solution is generally cheaper than a SMD ceramic antenna. The demonstration and development boards for the STM32WB Series implement PCB printed antenna based on this application note. Low cost PCB antenna for 2.4 GHz radio: meander design for STM32WB Series AN5129 Application note AN5129 - Rev 4 - April 2019 For further information contact your local STMicroelectronics sales office. www.st.com 1General information This document applies to STM32WB Series Arm ® -based devices. Note:Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. AN5129 General information AN5129 - Rev 4 page 2/22 2Coordinate system For the purpose of this document, the spherical coordinate system illustrated in the figure below is used. Figure 1. Spherical coordinate system The PCB module is orientated vertically (plane X-Z) and located in proximity to the origin of the coordinate system. The azimuth angle radiates from the X-axis towards the Y-axis and the elevation angle radiates from the Z-axis towards the horizontal X-Y plane. Sometimes, as with geographical and navigational systems, the X-axis is called the "Nord-axis", the Yaxis is called the "East-axis" and the Z-axis is called the "Zenith-axis". AN5129 Coordinate system AN5129 - Rev 4 page 3/22 3Layout specification The PCB antennas, including the electrical parameters of PCB materials used, are layout sensitive. It is recommended to use a layout as close as possible to the one shown in the figure below. Figure 2. PCB antenna dimensions (in mm) The electrical parameters and performance of the PCB antenna are also determined by the substrate used, in particular the thickness of the core and dielectric constants. AN5129 Layout specification AN5129 - Rev 4 page 4/22 The figure below illustrates a typical cross-section of the substrate in a PCB-antennae area. Figure 3. PCB cross section at antennae area A substrate with the parameters as defined in the table below is recommended. Table 1. Recommended substrate specification Layer Dimensions Dielectric constant Ɛ R LabelValue (mil)Value (μm) Solder mask, topS10.717.784.4 Copper traceT1.640.64- CoreC28711.24.4 Solder mask, bottomS20.717.784.4 AN5129 Layout specification AN5129 - Rev 4 page 5/22 4Impedance matching Meander-like PCB antenna can be tuned to the required 50 Ω impedance by matching the impedance circuitry with the π topology. In Figure 2, the impedance matching area is marked with a dashed line. Under nominal conditions, this antenna exhibits and impedance very close to the required nominal impedance (50 Ω). To check the performance of this design, a sample antenna was manufactured (according to the specifications covered by this document). The figure below shows this antenna. Figure 4. Part of 802.15.4 and BLE PCB with meander-like antenna (scale around 4:1) Assuming that the manufactured sample exhibits the expected performance (no impedance matching necessary), the impedance matching circuitry is bypassed by two 100 pF capacitors connected in series, as shown in the figure below. Figure 5. Bypassing impedance matching circuitry - Direct RF connection All electrical parameters of the meander-like antenna have been measured at connection to the band-pass filter (BPF) with the frequency span covering frequencies from 2.4 GHz to 2.5 GHz. AN5129 Impedance matching AN5129 - Rev 4 page 6/22 Complex impedance of the antenna is shown in the Smith diagram in the figure below. Figure 6. Complex impedance of the meander-like antenna (Smith chart) The figure below shows the magnitude of the S11 parameter (in log scale). Figure 7. S11 parameter in logarithmic scale (Cartesian plot) AN5129 Impedance matching AN5129 - Rev 4 page 7/22 The figure below shows the standing wave ratio (SWR). Figure 8. Antenna standing wave ratio (SWR) The following changes affect the radiation impedance of the PCB antenna: • slight board size variation • metal shielding • use of plastic cover • presence of other components in proximity of the antenna The best performance impedance matching circuitry compensates these effects so that, for operating frequencies, the optimum 50 Ω impedance is achieved. AN5129 Impedance matching AN5129 - Rev 4 page 8/22 5Radiation pattern, 3-D visualization A three-dimensional (3-D) visualization of the radiation pattern (magnitude of the electrical far field |E|) is done for the center ISM band frequency 2.44175 GHz. Figure 9. 3-D radiation pattern overview Figure 10. Radiation pattern on X-Z plane AN5129 Radiation pattern, 3-D visualization AN5129 - Rev 4 page 9/22 6Radiation pattern, 2-D visualization In this section, all radiation patterns are related to the magnitude of electrical far field |E|, that is normalized and shown in the logarithmic scale (in dB). This means that the maximum global radiation pattern (maximum magnitude of the electrical far-field E) is represented by 0 dB level. To show the antenna radiation patterns in detail, three two dimensional (2-D) major cuts are presented. Consider the orientation of the module in the spherical coordinate system as shown in Figure 1. A three dimensional (3-D) far field radiation pattern is visualized as three two dimensional (2-D) cuts through a 3- D pattern. The following major planes are used for these cuts (see Figure 11): • one horizontal X-Y plane • two vertical planes: X-Z plan…

Text truncated - open the document above for the full version.

Rapport d’essais / Test Report N° : 14708-FCC-ISED-1 Page 1 / 39 COORDONNEES SMEE TEL : 04 76 65 76 50 385, Rue René Rambaud, ZA Le Parvis 2 FAX : 04 76 66 18 30 38500 VOIRON - France SAS au capital de 50 000 € / RC Grenoble B534 796 453 / SIRET 534 796 453 00015 / code APE 7490B / n° TVA : FR 59 534 796 453 FCC Test Firm Designation Number: FR0014 ISED Wireless Device Testing Laboratory CAB Number: FR0004 Matériel testé : Equipment under test: ST / NUCLEO-WBA52CG (MB1863A-03) (Trademark / Marketing name or product reference) Demandeur de certification : Applicant for certification: STMicroelectronics (Rousset) SAS 190 Avenue Celestin Coq, 13106 – ROUSSET – France Client : Customer: STMicroelectronics 12 Rue Jules Horowitz, 38000 – Grenoble – France Numéro d’affaire : Work number : 14708 Référence de la proposition : Proposal number: 082022-25582 Date de l’essai : Date of test: Du 10 au 28 Octobre 2022 / 22 novembre 2022 October 10 th to 28 th ,2022 / November 22 nd , 2022 Objectif des essais : Test purpose: EMC qualification accordingly to following standards: - CFR 47, FCC Part 15, Subpart C (Chapter 15.247 - Operation within the bands 902–928 MHz, 2400–2483.5 MHz, and 5725–5850 MHz) - Industry Canada RSS-247, Issue 3 (Digital Transmission Systems Operating in the Bands 902–928 MHz) Measurement standards: ANSI C63.10 (2013) Lieu du test: Test location: SMEE, 385 Rue René Rambaud 38500 VOIRON - France Test réalisé par : Test realized by: Chemseddine KERMICHE Conclusion : Conclusion: L’équipement satisfait aux prescriptions et essais des normes citées en référence. The appliance complies with requirements and tests of above mentioned standards. Ed. Date Modifications / Pages Written by: Visa Approved by: Visa 1 January 8 th , 2024 Initial Edition Chemseddine KERMICHE Test operator Laurent CHAPUS Technical Manager La copie de ce document n'est permise que sous sa forme intégrale. Ce document est le résultat d’essais effectués sur un échantillon. Il ne préjuge pas de la conformité de l’ensemble des produits fabriqués à l’objet essayé. Pour la déclaration de conformité de l'équipement, il n'est pas tenu compte de l'incertitude de mesure. Cette nouvelle édition de ce rapport annule et remplace l’édition précédente. Les modifications apportées à une nouvelle édition de ce rapport sont signalées par un trait vertical à gauche de la page. L’utilisation de la marque d’accréditation COFRAC est interdite. This document shall not be reproduced, except in full. This document contains results related only to the item tested. It does not imply the conformity of the whole production to the item tested. For the declaration of conformity of the equipment, the measurement uncertainty is not taken into account. This new edition of this report cancels and replaces the previous edition. Changes made to a new edition of this report are indicated by a vertical line to the left of the page. The use of the COFRAC accreditation mark is prohibited. Accréditation N° 1-6356 Portée disponible sur : Scope available on : www.cofrac.fr Page 2 / 39 Rapport d’essai / Test Report N° : 14708-FCC-ISED-1 Page 2 / 39 Contents 1. NORMATIVES REFERENCES ......................................................................................................... 3 2. TEST SYNTHESIS ............................................................................................................................ 4 3. EQUIPMENT UNDER TEST (EUT) ................................................................................................... 5 4. TEST CONDITIONS .......................................................................................................................... 5 5. MODIFICATIONS OF THE EUT ........................................................................................................ 5 6. SPECIAL ACCESSORY .................................................................................................................... 6 7. MEASUREMENT UNCERTAINTY .................................................................................................... 6 8. FIELD STRENGTH CALCULATION .................................................................................................. 6 9. TEST SETUP DIAGRAMS ................................................................................................................ 7 10. CONDUCTED EMISSION MEASUREMENT (150KHZ-30MHZ) .................................................... 9 11. DTS BANDWIDTH ....................................................................................................................... 12 12. MAXIMUM PEAK OUTPUT POWER ........................................................................................... 15 13. MAXIMUM POWER SPECTRAL DENSITY LEVEL IN THE FUNDAMENTAL EMISSION ........... 18 14. UNWANTED EMISSIONS IN NON-RESTRICTED FREQUENCY BANDS (RADIATED EMISSIONS) .......................................................................................................................................... 21 15. UNWANTED EMISSIONS IN RESTRICTED FREQUENCY BANDS ........................................... 23 16. OCCUPIED BANDWIDTH ........................................................................................................... 33 17. TEST EQUIPMENT LIST ............................................................................................................. 38 Page 3 / 39 Rapport d’essai / Test Report N° : 14708-FCC-ISED-1 Page 3 / 39 1. Normatives References FCC qualification according to: Standards Applied Title ANSI C63.10 (2013) X American National Standard for Testing Unlicensed Wireless Devices CFR47, Part 15 (October 2022) X Telecommunication – Federal Communication Commission – Radio frequency devices, Sections 15.207 / 15.209 / 15.247 ISED qualification according to: Standards Applied Title RSS-Gen (Issue 5/2018, amendments 2019 and 2021) X General Requirements and Information for the Certification of Radio Apparatus RSS-2…

Text truncated - open the document above for the full version.

Page 1/3 TEST SETUP PHOTOS Applicant: STMicroelectronics SAS Device PMN: NUCLEO-WBA52CG Model: MB1863A-03 CONDUCTED EMISSIONS Page 2/3 RADIATED EMISSIONS (FREQ < 1GHz) Page 3/3 RADIATED EMISSIONS (FREQ > 1GHz)