Nordic nRF52811 SoC builds on the success of the Nordic nRF52 Series platform and brings richer connectivity for applications adopting advanced wireless Internet of Things capabilities (such as Bluetooth 5.1 direction finding, thread, and ZigBee).

nRF52811 SoC is the fourth-generation product of the nRF52 Series platform, which extends the platform to cover many applications and use cases. Protocols supported by radio, including Bluetooth 5.1 direction finding, all Bluetooth 5 features, 802.15.4, Thread, ZigBee, and proprietary 2.4GHz.

nRF52811 SoC has 4 DBM TX power, which is optimized to provide the best reception sensitivity of all SoCS in the nRF52 series:

• BLE remote: - 104 dBm
• BLE-1 Mbps：-97 dBm
• 802.15.4（Thread/ZigBee）：-101 dBm

This SoC device combines the low-cost features of Nordic's entry-level nRF52810 SoC with the multi-protocol support of mainstream nRF52832 and high-end nRF52840 SoCs.  nRF52811 is also the first Nordic low-power wireless connectivity product in the family to support Bluetooth 5.1, adding a direction-finding feature for Bluetooth 5 with high throughput, long distance, and enhanced coexistence function. nRF52811 SoC can realize the latest and most powerful functions of Bluetooth 5.1, the most prominent is the direction-finding function, which pushes the Bluetooth positioning to a new height. Based on the strong basic support of the nRF52811 chip, RF-star can supply a mature Bluetooth indoor positioning solution for customers.

Nordic nRF52811 SoC is built around 64 MHz arm ® cortex ™ - M4 CPU and has a series of digital peripherals and interfaces, such as PDM, PWM, UART, SPI, and Twi. It also has a 12-bit ADC. Using an advanced on-chip adaptive power management system can achieve extremely low-energy consumption. It also includes a multi-protocol 2.4GHz RF module with 4dbm output power, - 97dBm sensitivity (in Bluetooth 5 1Mbps mode), a 64MHz 32-bit arm ® cortex ™ - M4 processor, 192KB flash, and 24KB RAM.

nRF52811 SoC joins the Nordic multi-protocol product family to meet the most extensive application requirements today. Nordic can provide ideal solutions no matter whether the main needs of developers are direction finding, supporting popular RF protocol, high throughput, long distance, or price. As an excellent Bluetooth solution provider in China, RF-star can provide customers with high-quality Bluetooth solutions.

nRF52811 SoC Bluetooth 5.1 direction finding function makes the positioning solution not only dependent on the Received Signal Strength Indicator (RSSI) but also based on the actual direction of the signal, which significantly improves the positioning accuracy and opens up a new application space. There are two methods to determine the direction of the signal: one is to calculate the angle of arrival (AoA) of the received signal, and the other is to calculate the angle of departure (AoD) of the transmitted signal. The DF function can be used in two-dimensional or three-dimensional space, which depends on the selected design complexity and antenna array. nRF52811 SoC with built-in Bluetooth 5.1 hardware function is the ideal transceiver choice for AoA or AoD application scenarios.

nRF52811 SoC will use 6x6mm qfn48 with 32 gpios, 5x5mm qfn32 with 17 gpios, and 2.48x2.46mm WLCSP with 15 gpios. All packages are compatible with the same kind of nrf52810 SoC package, and the same PCB of nrf52810 can be reused.

nRF52811 modules launched by RF-star are widely applied in beacons, anti-loss devices, BLE5.1 positioning systems, and ZigBee / thread smart homes.

Main features:

1. 192 KB Flash + 24 KB RAM
2. - 96 DBM sensitivity
3. 1.7-3.6v power supply voltage range
4. Integrated DC-DC regulator
5. 12 bit 200 KSPs A / D converter
6. Small size

Application:

1. Beacon
2. Network processor
3. Proximity solutions
4. Real time positioning system
5. Asset tracking
6. Smart home

For more Nordic nRF52832, nRF52840 Wireless Conectivity Solutions, please kindly visit www.rfstariot.com or contact at info@szrfstar.com.