Bluetooth LE SoC Touts Efficiency, Security, and Integration
Blending together channel sounding, Secure Vault high security, and integrated CAN-FD and peripherals, Silicon Labs' latest BG2B Series 2 Bluetooth Low Energy (LE) wireless SoC helps build smaller, more secure, and longer-lasting battery-powered IoT devices. The BG2B features the company's lowest-power Bluetooth architecture and integrated peripherals, such as CAN-FD, LED drivers, and dual ADCs, in a single integrated platform.
Designed for an array of applications, including secure ranging, asset tracking, electronic shelf labels (ESLs), smart home, industrial monitoring, and vehicle diagnostics, the BG2B offers a dual-output DC-DC power architecture and multi-core design to significantly improve efficiency across active, receive, and sleep modes.
When compared to Silicon Labs’ previous lowest power Bluetooth LE SoC, it delivers 14% to 15% lower MCU active current, lower Bluetooth receive current, and 1.1-µA EM2 sleep current with RAM retention.
For developers building location-aware products, BG2B supports advanced Bluetooth channel-sounding capabilities such as Mode 3, Normalized Attack Detector Metric (NADM), and Inline Phase Correction Term (Inline PCT). This is supported by Silicon Labs' complete Channel Sounding development solution, which includes a royalty-free ranging library, software, tools, and engineering support.
Integrated LED boost and four-channel LED sink capabilities eliminate external LED driver circuitry. Among other integrated capabilities are dual 12-bit ADCs for simultaneous analog sampling and variable resistive load (VRL) for more accurate battery health estimation.
Designed to support PSA Level 3 compliance, the BG2B also leverages Silicon Labs' Custom Part Manufacturing Service to securely provision devices with unique identities, certificates, and cryptographic credentials during manufacturing.
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About the Author
Alix Paultre
Editor-at-Large, Microwaves & RF
Alix is Editor-at-Large for Microwaves & RF.
An Army veteran, Alix Paultre was a signals intelligence soldier on the East/West German border in the early ‘80s, and eventually wound up helping launch and run a publication on consumer electronics for the U.S. military stationed in Europe. Alix first began in this industry in 1998 at Electronic Products magazine, and since then has worked for a variety of publications, most recently as Editor-in-Chief of Power Systems Design.
Alix currently lives in Wiesbaden, Germany.