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New secure Bluetooth 5.2 SoCs enable ten-year coin cell battery operation

24/01/2020

New Bluetooth® system-on-chip (SoC) solution delivering a market-leading combination of security features, wireless performance, energy efficiency, and software tools and stacks to meet the market demand for high-volume, battery-powered IoT products. Expanding Silicon Labs’ secure, ultra-low-power Wireless Gecko Series 2 platform, the EFR32BG22 (BG22) SoCs provide developers with an optimized Bluetooth connectivity solution supporting the new Bluetooth 5.2 specification, Bluetooth direction finding and Bluetooth mesh. The BG22 family’s combination of best-in-class ultra-low transmit and receive power (3.6 mA TX at 0 dBm, 2.6 mA RX) and a high-performance, low-power Arm® Cortex®-M33 core (27 µA/MHz active, 1.2 µA sleep) delivers industry-leading energy efficiency that can extend coin cell battery life up to ten years.

The new portfolio offers a choice of three Bluetooth SoC products designed to address a wide range of price/performance requirements for smart home, consumer, commercial and industrial IoT applications including those requiring multi-year battery life.

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New secure Bluetooth 5.2 SoCs enable ten-year coin cell battery operation

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  • The EFR32BG22C112 SoC targets high-volume, cost-sensitive applications, providing access to 1 Mbps and 2 Mbps Bluetooth PHYs, along with a 38.4 MHz Arm Cortex-M33 core, 18 GPIOs and 352 kB of flash memory with radio characteristics of 0 dBm transmit (TX) and an industry-leading -99 dBm receive (RX) (1M PHY) sensitivity.
  • The EFR32BG22C222 SoC targets applications requiring more compute power (with a 76.8 MHz M33 core), more I/O’s (26 GPIOs) and higher TX power (+6 dBm).
  • The EFR32BG22C224 SoC provides IQ sampling for direction finding applications and access to 125 kB and 500 kB Bluetooth LE Coded PHYs, which can increase RX sensitivity to -106 dBm. The SoC increases operating temperature to +125 °C and extends flash memory up to 512 kB to support applications requiring direction finding capabilities or low-power mesh nodes.

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