Silicon Labs announces new Bluetooth system-on-chip (SoC) solutions to match the demand for high-volume, battery-powered IoT products, expanding on its EFR32BG22 platform, in support of the new Bluetooth 5.2 specification. This is in accordance with Bluetooth SIG's report, which suggests that the total annual Bluetooth device shipments are forecast to grow 26 per cent by 2023 (from 4 billion units in 2019 to 5.4 billion units), and 90 per cent of all Bluetooth devices will include Bluetooth Low Energy by 2023.
With the combination of the ultra-low transmission and reception of power (3.6 mA TX at 0 dBm, 2.6 mA RX) with a high-performance, low-power Arm Cortex-M33 core (27 µA/MHz active, 1.2 µA sleep), Silicon Labs hopes to combat concerns on the longevity of coin cell battery life by extending it up to ten years. Target applications include Bluetooth mesh low-power nodes, smart door locks, personal healthcare and fitness devices.
The new portfolio offers a choice of three Bluetooth SoC products designed to address a wide range of price/performance requirements for the aforementioned applications:
• 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.
Matt Johnson, senior vice president and general manager of IoT products at Silicon Labs, had this to say: “Silicon Labs has strengthened its offering for existing and growing Bluetooth markets. Our secure Bluetooth solution enables our customers to reduce BOM cost, power and time-to-market, as we continue to push innovations such as Bluetooth 5.2. Our new BG22 SoCs give developers the right balance of features, security and performance at low cost points to help drive adoption of Bluetooth across a wide array of IoT products.”
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