Bluetooth LE SoC – AIROC CYW20829


The AIROC CYW20829 is a high-performance, ultra-low-power MCU with Bluetooth LE 5.4, engineered for IoT applications. It integrates advanced features like analog-to-digital audio conversion, I2S/PCM, CAN, and LIN, making it ideal for use in automotive contexts and various communication and timing applications. 

The CYW20829 is particularly suited for devices such as wireless input devices, remotes, keyboards, and Bluetooth Mesh, as well as for asset tracking and IoT solutions requiring 10-dBm RF output power in areas like lighting and home automation. This application note provides an introduction to using the AIROC CYW20829 MCU, offering an overview of its architecture and available development kits, and guides you to additional online resources to enhance your learning and application development.


  1. A high-performance compute subsystem featuring an Arm Cortex M33 core, specifically tailored for embedded applications.
  2. A dedicated Bluetooth Low Energy (Bluetooth LE) controller subsystem, equipped with separate RAM and ROM resources optimized for Bluetooth applications.
  3. The capability to measure received signal strength indication (RSSI) with a resolution as fine as 1 dB.
  4. The link layer engine has the capacity to manage up to 16 connections simultaneously, with four of these connections designated as peripheral.
  5. CYW20829 offers versatile clocking options, including on-chip crystal oscillators, a frequency lock loop, and support for various external clock sources.


  1. Primarily helps in evaluating the power consumption of the CYW20829 Bluetooth Low Energy SoC .
  2. Real-time monitoring of power consumption fluctuations during different stages of Bluetooth connection establishment (e.g., advertising, scanning, connection initiation, data transmission)
  3. Analysis of power consumption variations with different Bluetooth connection parameters such as connection interval, connection latency, and advertising interval.
  4. Evaluation of power consumption behavior during periods of Bluetooth inactivity (e.g., standby mode).
  5. Identification of any abnormal power consumption patterns or spikes that may indicate inefficiencies or issues in the SoC’s operation.
  6. Documentation of test results, including graphical representations of power consumption data, to facilitate analysis and comparison.


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