ON Semiconductor RSL10 BLE Radio SoC
ON Semiconductor’s RSL10 is the industry’s lowest power Bluetooth Low Energy radio SoC, with the lowest power consumption in peak receiving and deep sleep modes. The RSL10 is designed for health, fitness, and medical wearables, as well as low-voltage and low-power IoT devices. To support these applications, it integrates a highly flexible RF front-end, MCU, DSP, and power management, it can operate directly from 1.2 V and 1.5 V batteries, and it has tiny package options to minimize the design footprint and support space-constrained devices.
The RF front-end consists of an integrated power amplifier, low-noise amplifier, mixer, and a 50 Ω matching network. It can support Bluetooth, 802.15.4 protocols with on-chip encoding and decoding, as well as proprietary protocols, including audio streaming. It even supports coexisting of Bluetooth with other protocols, so, for example, Bluetooth could be used to control the device while audio streams over a proprietary protocol. The RSL10 supports data rates up to 2 Mbps, receive sensitivity as low as -94 dBm, and transmit power can be set between -17 and +6 dBm.
The power management on the RSL10 allows it to operate from 1.2 and 1.5 V batteries without external regulation. It has a supply range of 1.1 to 3.6 V, with an internal buck converter for supplies about 1.4 V and an LDO for supplies below 1.4 V. This allows the RSL10 to operate at maximum efficiency regardless of the supply voltage. In deep sleep mode, the SoC consumes an industry best 62.5 nW.
The integrated LPDSP32 is a high-efficiency 32-bit dual Harvard DSP core that is included to support applications with intensive signal processing requirements. It’s C-programmable, supports both single and double precision arithmetic, and communicates with the processor through interrupts and shared memory.
The processor is an ARM Cortex-M3 that is programmable to suit the application needs of the developer. It includes a full set of peripherals, interfaces, and memories, so you can interface with sensors, displays, and other devices. It’s also used to execute Bluetooth and other protocol stacks, with support for OTA firmware updates.
All of this functionality is packed into a 5.5 mm2 WLCSP-51 or 6 x 6 mm QFN-48, giving designers the option to select the package and technology that meets their design requirements.
To learn more about the RSL10 Multi-protocol Bluetooth 5 certified SoC, visit Mouser.com.
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