NRF51822-QFAA-R7 RF/IF and RFID

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	TxRx + MCU
RF Family/Standard:	Bluetooth, General ISM > 1GHz
Protocol:	Bluetooth v4.0
Modulation:	GFSK
Frequency:	2.4GHz
Data Rate (Max):	2Mbps
Power - Output:	4dBm
Sensitivity:	-96dBm
Memory Size:	256kB Flash, 16kB RAM
Serial Interfaces:	I²C, SPI, UART
GPIO:	32
Voltage - Supply:	1.8 V ~ 3.6 V
Current - Receiving:	9.7mA ~ 13.4mA
Current - Transmitting:	4.7mA ~ 16mA
Operating Temperature:	-25°C ~ 75°C
Package / Case:	48-VFQFN Exposed Pad

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Introduction of NRF51822-QFAA-R7

The NRF51822-QFAA-R7 is a radio frequency transceiver module (RF Transceiver IC) based on Nordic Semiconductor’s nRF51822 System-on-Chip (SoC) architecture. It is ideally suited for low power, low cost, long range and low number of line of sight communication applications. It makes use of the 2.4 GHz frequency and up to 1 Mbps speed for data communication. NRF51822-QFAA-R7 is a highly integrated, cost effective, low power transceiver module. It is designed to provide superior radio performance, extended range and low power consumption. It consists of on-chip RF circuitry, a 16-bit Arm Cortex-M0 micro controller and various other peripherals such as ADC, UART, SPI, I2C, etc.

Applications

The NRF51822-QFAA-R7 is suitable for a variety of applications such as wireless sensor networking, asset tracking,’ home automation, personal area networking, health and fitness tracking, medical instruments, wearable solutions, remote controls, and industrial and consumer have multiple uses like product control, broadcast control, contactless readings, etc.

Performance Features

The NRF51822-QFAA-R7 module is designed for maximum performance at low cost and minimized power consumption. It contains a Nordic nRF51822 radio transceiver that is certified to support up to 125 kbit/s data rate. The module also supports Bluetooth Low Energy v4.2 and is backward compatible with BLE v4.0, v4.1 and v3.0.The module features about 1.63K of RAM and 64K of Flash memory for storing program code and data. It also contains a 16-bit Arm Cortex-M0 micro controller to enable firmware to quickly adapt to customer specific requirements. The module has a dynamic power management feature that adjusts the power consumption based on the operating state and reduces power consumption while maintaining high performance.The NRF51822-QFAA-R7 supports up to 8 hardware assisted channels for simultaneous network operations and can connect up to 10 nodes in a single network. It also features Enhanced ShockBurst Mode (ESB) that makes use of auto configuration procedures to reduce pairing time and reduce power consumption while establishing communications.

Working Principle

The NRF51822-QFAA-R7 module is based on a Nordic’s nRF51822 System-on-Chip (SoC) architecture. The module utilizes a 2.4 GHz radio for both Bluetooth Low Energy and proprietary communication, making use of Nordic Enhanced ShockBurst to form a network of several nodes. The module contains 16-bit ARM Cortex-M0 processor, which provides the processing power to implement functions such as real-time clock, analog-to-digital converters (ADC) and serial peripheral interface (SPI) for communication. The module also contains 64k of Flash memory for storing firmware and program code, and 1.63K of RAM for dynamic storage. The Nordic radio transceiver supports up to 125 kbit/s data rate and 8 hardware channels for simultaneous network operations. The module provides two memory maps, one for accessing the ARM Cortex-M0 flash and RAM memories and the other for accessing the Nordic SoC on-chip memories. External memories of up to 24kB each are supported.The module also supports various modes of power management to reduce power consumption and increase performance when needed. It includes a low power operating mode, and a sleep mode which allows for extended battery life and low power consumption.

Conclusion

The NRF51822-QFAA-R7 module is an advanced, highly-integrated Low power 2.4 GHz radio frequency transceiver module that supports both Bluetooth Low Energy and Nordic proprietary protocols. It is designed for low cost, extended range and low power consumption applications. The module is suitable for many applications such as wireless sensor networking, asset tracking and home automation. The module features an on-chip radio, 16-bit Cortex-M0 processor, 64K Flash memory and 1.63K RAM. It also supports up to 8 hardware assisted channels for simultaneous network operations and external memories of up to 24kB each. The module also offers dynamic power management and low power operating modes.

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