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nRF52811

Feature

The nRF52811 SoC is the 4th addition to the nRF52 Series, and adds capabilities for Bluetooth® 5.1 Direction Finding. Direction Finding enables positioning solutions to not only rely on received signal strength indicator (RSSI), but also the actual direction of a signal. This improves accuracy significantly and opens new possibilities for applications in this segment. There are two types of methods for determining direction, angle of arrival (AoA), where the direction of the received signal is calculated, and angle of departure (AoD), where the direction of the transmitted signal is calculated. The nRF52811 SoC is the perfect choice as a transmitter in both the AoA or AoD scenarios, with its low power character and connectivity features.

 

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Spec

Protocol
BT5.1/802.15.4/ANT/2.4 GHz
IC type
SoC
CPU
ARM® Cortex™- M4
RAM
24 KB
Flash
192 KB
Package
QFN48/32
NFC-A tag
- -
2-Wire
ADC
AES
Analog Comparator
I²S
- -
PDM
PWM
RTC
ARM CrypotoCell
- -
TRNG
SPI
QSPI
- -
Temperature Sensor
UART
USB
- -

Remark

 64 MHz Arm® Cortex-M4
 192 KB Flash + 24 KB RAM
 Bluetooth 5.1 radio
Direction Finding
Long Range
+4 dBm TX power
-97 dBm sensitivity
4.6 mA in TX (0 dBm)
4.6 mA in RX
Integrated balun with 50 Ω single-ended output
 IEEE 802.15.4 radio support
Thread y Zigbee
 1.7-3.6 V supply voltage range
 Integrated DC-DC regulator
 0.3 µA in System OFF
 1.1 uA in System ON with RTC and full RAM retention
 Full range of digital interfaces with EasyDMA
 12-bit 200 ksps ADC
 Small size

APPLICATIONS
 Beacons
 Network processor
 Proximity solutions
 Real time locating systems
 Asset tracking
 Smart home