
onsemi RSL10 Multi-Protocol BLUETOOTH® System-on-Chip
onsemi RSL10 Multi-Protocol BLUETOOTH® 5 System-on-Chip (SoC) is designed to bring ultra-low-power wireless connectivity to IoT and connected wearables, such as health and wellness devices. The RSL10 SoC is specifically designed for applications using 1.2V and 1.5V batteries and supports a 1.1V to 3.6V voltage supply range without requiring an external DC/DC converter. The highly integrated RSL10 features a dual-core architecture and a 2.4GHz transceiver, providing the flexibility to support Bluetooth low energy technology and 2.4GHz proprietary or custom protocols.
The onsemi RSL10 SoC brings low-power Bluetooth low energy technology to the automotive industry. This SoC enables advanced functionality that includes keyless entry using a fob or smartphone, active safety, diagnostic alerts, and enhanced infotainment controls. The RSL10 SoC features built-in data encryption, wettable flank-plated packaging, and a high operating temperature range.
Features
- −94dBm Rx sensitivity (BLUETOOTH Low Energy Technology Mode, 1Mbps)
- Data rate of 62.5kbps to 2000kbps
- Transmitting power of −17dBm to +6dBm
- Peak Rx current of 5.6mA (1.25V VBAT)
- Peak Rx current of 3.0mA (3V VBAT)
- Peak Tx current (0.0dBm) of 8.9mA (1.25V VBAT)
- Peak Tx current (0.0dBm) of 4.6mA (3V VBAT)
- Bluetooth 5 Certified with 2Mbps support
- Arm® Cortex®-M3 processor clocked up to 48MHz
- LPDSP32 for Audio CODEC
- Supply voltage range of 1.1V to 3.6V
- Current consumption (1.25V VBAT):
- Deep sleep, IO wake-up of 50nA
- Deep sleep, 8kB RAM retention of 300nA
- Audio streaming at 7kHz audio BW of 1.8mA RX/TX
- Current consumption (3V VBAT):
- Deep sleep, IO wake-up of 25nA
- Deep sleep, 8kB RAM retention of 100nA
- Audio streaming at 7kHz audio BW of 0.9mA RX/TX
- 384kB Flash memory
- Highly-integrated System-on-Chip (SoC)
- Supports FOTA (Firmware Over-The-Air) updates
- Offered in ultra-miniature WLCSP51 and QFN48 packages
Applications
- Fitness trackers and activity monitors
- Smartwatches
- Hearing aids and hearables
- Heart rate monitors
- Blood glucose monitors
- Continuous glucose monitors
- Pulse oximeters
- IoT applications
- Smart locks
- Lighting applications
Videos
Block Diagram

Architecture Overview

Infographic
