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Infineon AIROC CYW20829 Bluetooth LE SoC Manual

Achieving long range transmission using
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r e s t r i c t e d
AN238518
Achieving long range transmission using
AIROC™ CYW20829 Bluetooth® LE SoC

About this document

Scope and purpose
This application note explains the detailed test setup for long range transmission using the AIROC™ CYW20829
Bluetooth® LE SoC. The firmware used in this application is provided as a code example with the
ModusToolbox™ software development kit.
Intended audience
This application note is intended for those who wants to integrate the Bluetooth® LE long range feature on
CYW20829.
Application note
www.infineon.com
Please read the sections "Important notice" and "Warnings" at the end of this document
002-38518 Rev. **
2023-09-12

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Summary of Contents for Infineon AIROC CYW20829 Bluetooth LE SoC

  • Page 1: About This Document

    This application note is intended for those who wants to integrate the Bluetooth® LE long range feature on CYW20829. Application note Please read the sections “Important notice” and “Warnings” at the end of this document 002-38518 Rev. ** www.infineon.com 2023-09-12...

  • Page 2: Table Of Contents

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE Table of contents Table of contents About this document ........................1 Table of contents ..........................2 Introduction .......................... 3 AIROC™ CYW20829 Bluetooth LE SoC ..................... 3 Long Range Application ......................

  • Page 3: Introduction

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Introduction Introduction The AIROC™ CYW20829 has best-in-class RF link budget with an integrated power amplifier providing 10 dBm of transmit output power and receive sensitivity of -98 dBm for LE 1 Mbps and -106 dBm for LE long range 125 Kbps.

  • Page 4: Long Range Application

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Long range application Long range application Figure 1 illustrates the block diagram of the long-range application using the CYW20829 Bluetooth® LE SoC. The application includes a combination of peripheral and central devices.

  • Page 5: Bluetooth Spec For Phy

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Long range application Bluetooth® spec for PHY The Bluetooth® technology is a full protocol stack. The bottom layer of this stack is called the Physical Layer and is normally referred to as PHY.

  • Page 6: Le Coded Phy Implementation

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Long range application LE Coded PHY implementation The LE Coded PHY can be used with two different coding schemes: S=2 and S=8. The Pattern Mapper converts each bit from the convolutional FEC encoder into P symbols, where the value of P depends on the coding scheme used.

  • Page 7: Hardware Setup

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Hardware setup Hardware setup CYW20829 evaluation board The CYW20829 M.2 board (CYW920829M2IPA2) consists of the 56-pin silicon target device on a custom pinout M.2 card that is interfaced with the base board (CYW9BTM2BASE3-01).

  • Page 8: Le-Lr Test Setup

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Hardware setup LE-LR test setup Two evaluation boards are used to set up the LE-LR demo. The CYW920829M2EVK-02 board is used with CYW920829M2IPA1 (M.2 Card), which uses the PCB-based antenna.

  • Page 9: External Antenna

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Hardware setup 3.2.1 External antenna The external antenna is one of the preferred options to use in the long-range application. To use the external antenna, switch the capacitor (C25) on the CYW920829M2IPA1 (M.2 Card) towards the external antenna path, as shown in Figure...

  • Page 10: Software And Tools

    ModusToolbox™ software is a modern, extensible development environment supporting a wide range of Infineon microcontroller devices. It provides a flexible set of tools and a diverse, high-quality collection of application-focused software. These include configuration tools, low-level drivers, libraries, and operating system support, most of which are compatible with Linux-, macOS-, and Windows-hosted environments.

  • Page 11: Le Lr Peripheral Applicatioin

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Software and tools For more details, refer to the central application’s README.md. LE LR peripheral application This is a GATT server application designed to obtain the sensor data (simulated) and connect to the client application using the LE-LR PHY.

  • Page 12: Testing And Results

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Testing and results Testing and results Testing is performed at Newport Beach, CA, to get a clear line of sight, and less environment radio noise. Test procedure 1.

  • Page 13: Noise Interference

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Testing and results Noise interference Noise and interference are the largest contributors to poor range in a long-range testing environment. In the real world, increased noise means your Bluetooth®...

  • Page 14: Antenna Radiation

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Testing and results Antenna radiation The antenna radiation is tested across different frequencies. Figure 12 shows the radiation pattern for difference frequencies with maximum antenna gain orientation.
  • Page 15 r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Testing and results The current measurement is performed at different ranges and the values are shown in the following table: Device mode VPA Avg.

  • Page 16: Range Vs Rssi Value

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Testing and results Range vs RSSI value The RSSI values are captured at every second along with transmission data. The distance versus the RSSI values are plotted in Figure 14 (the distance values in the horizontal axis are in meters).

  • Page 17: References

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC References References GitHub code examples for ModusToolbox ™ software AIROC™ CYW20829 Datasheet ModusToolbox™ software Bluetooth® Sig Spec Application note 002-38518 Rev. ** 2023-09-12...

  • Page 18: Revision History

    r e s t r i c t e d Achieving long range transmission using AIROC™ CYW20829 Bluetooth® LE SoC Revision history Revision history Document revision Date Description of changes 2023-09-12 Initial version Application note 002-38518 Rev. ** 2023-09-12...

  • Page 19: Disclaimer

    Infineon Technologies hereby Infineon Technologies’ products may not be used in disclaims any and all warranties and liabilities of any applications where a failure of the product or any any kind (including without limitation warranties of © 2023 Infineon Technologies AG.

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