The company expands its catalog with devices designed to enhance IoT connectivity with low power consumption and advanced AI and geolocation applications.
Silicon Labs, a leader in secure and intelligent wireless technology, has announced the launch of the new BG22L and BG24L SoCs, designed to improve Bluetooth® LE connectivity in low-power applications. The new “Lite” range is tailored to industry needs with optimized solutions for security, efficient processing, and compatibility with the recently released Bluetooth 6.0 specification.
The BG22L, aimed at common Bluetooth devices like tracking tags and small appliances, is characterized by its balance between performance and energy efficiency. Its architecture allows for up to ten years of battery life with a single button cell, making it an ideal choice for high-volume, low-cost applications.
On the other hand, the BG24L is designed for more advanced environments, incorporating an artificial intelligence and machine learning (AI/ML) accelerator, as well as support for Bluetooth Channel Sounding, a technology that enhances geolocation and proximity detection in dense spaces such as warehouses or residential buildings.
Bluetooth Channel Sounding and new possibilities in geolocation
The incorporation of Channel Sounding in the BG24L represents a significant advancement in Bluetooth localization accuracy. Announced as part of the Bluetooth 6.0 specification in September 2024, this system enables devices to determine their distance with sub-meter accuracy through bidirectional connections.
This functionality opens new opportunities for locating everyday objects like keys or wallets, with significantly lower power consumption than other positioning technologies. In the industrial sector, the technology can be used for inventory management in warehouses and asset tracking in large retail spaces.
Another relevant use case is wireless access control. Thanks to proximity detection, devices equipped with Bluetooth 6.0 will be able to interact more securely with electronic locks, vehicles, and smart lockers, allowing for authentication without the need to manually enter passwords.
Efficiency and power in Silicon Labs’ new SoC range
The BG24L integrates a 78 MHz ARM Cortex M33 processor, accompanied by 768 kB of flash memory and 96 kB of RAM, in a compact package of 5 mm x 5 mm. Additionally, it features the MVP AI/ML Accelerator, a specialized processor that improves inference speed by up to eight times in artificial intelligence applications, with six times lower power consumption compared to traditional CPU processing.
Meanwhile, the BG22L, geared towards low-power devices, operates with a 38.4 MHz ARM Cortex M33, 352 kB of flash memory, and 24 kB of RAM, in an even smaller format of 4 mm x 4 mm. Its low energy consumption is complemented by a high-precision frequency oscillator that eliminates the need for external components, thus reducing manufacturing costs and space requirements.
Both models are designed to support the latest Bluetooth standards, with the BG22L compatible with Bluetooth 5.4 and Bluetooth Direction Finding, while the BG24L incorporates advanced capabilities of Bluetooth 6.0.
Availability and market expectations in IoT
Silicon Labs has confirmed that the BG22L and BG24L SoCs will be generally available in the second quarter of 2025. As part of its launch strategy, the company has scheduled informational sessions and technology demonstrations at its Tech Talks 2025, planned for March.
With these innovations, the company reinforces its leadership in the wireless connectivity sector, offering high-performance, low-power solutions for the growing ecosystem of the Internet of Things (IoT).