NRF52811-QCAA-B-R

RF Transceiver ICS Overview

The nRF52811-QCAA-B-R is a Bluetooth 5.1 multiprotocol System on Chip (SoC) from Nordic Semiconductor, built around a 64 MHz ARM Cortex-M4 core. It integrates a 2.4 GHz radio with 4 dBm output power and -96 dBm sensitivity. The device features 192 kB of program memory and 24 kB of SRAM. Operating within a voltage range of 1.7 V to 3.6 V, it supports interfaces including PDM, PWM, SPI, TWI, and UART. Packaged in a QFN-32 format, it operates between -40°C and +85°C.

RF Transceiver ICS Feature Summary

• Supports Bluetooth 5.1 Direction Finding for enhanced positioning capabilities
• Enables multiprotocol connectivity including Thread and 2.4 GHz proprietary protocols
• Optimized for low energy consumption through adaptive power management systems

RF Transceiver ICS Applications

• Smart home and industrial gateway devices requiring multiprotocol support
• HVAC and security systems utilizing Bluetooth Direction Finding
• Cost-constrained Bluetooth beacons leveraging long-range functionality

RF Transceiver ICS Procurement Notes

Verify the specific suffix against official Nordic documentation to confirm package type and temperature grade. Ensure compatibility with the nRF5 SDK version required for your protocol stack. Confirm moisture sensitivity level handling during assembly. Validate that the QFN-32 footprint matches your PCB design constraints. Check for any regional distribution restrictions or supply limitations before finalizing orders.

RF Transceiver ICS Selection Notes

Select this component when Bluetooth 5.1 Direction Finding is required alongside multiprotocol support at a lower cost point than higher-end SoCs. It serves as an upgrade path from the nRF52810 for applications needing Thread or Zigbee integration. Consider the QFN-32 package size relative to available board space compared to WLCSP options. Evaluate current consumption profiles against battery life requirements for beacon applications.

RF Transceiver ICS Part Context

The nRF52811 expands the nRF52 platform by combining entry-level pricing with advanced features like Direction Finding. It bridges the gap between the basic nRF52810 and high-performance chips like the nRF52840. This SoC is designed for developers seeking a balance of performance, feature set, and cost efficiency for IoT wireless connections.

RF Transceiver ICS Replacement Considerations

The nRF52810 offers similar core specifications but lacks Bluetooth Direction Finding and multiprotocol support. The nRF52811-QFAA-B-R7 utilizes a QFN-48 package with additional GPIOs, requiring layout adjustments. Developers may use the nRF52840 DK for initial prototyping, though it does not support Direction Finding hardware.