NRF51822-QFAC-R RF/IF and RFID

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The NRF51822-QFAC-R is a multi-protocol Bluetooth 4.2, Bluetooth 5, 802.15.4, and 2.4GHz proprietary systems-on-chip (SoC) from Nordic Semiconductor. As a member of the nRF52 Series family, the nRF51822-QFAC-R is an ultra-low power, highly-capable, multiprotocol SoC ideally suited for Bluetooth Low Energy, ANT and 2.4GHz ultra-low-power wireless applications.

The NRF51822-QFAC-R can be classified as one of the RF Transceiver ICs that are essential components in wireless communication systems. It is designed on an innovative architecture that combines the 2.4 GHz RF transceiver with a 32-bit ARM® Cortex™ M0 microcontroller making it an ideal choice for all low power radio applications. It is a low-cost, CPU with dedicated analog circuitry for vital signal processing, transmit and receive operations.

The NRF51822-QFAC-R is highly advantageous in terms of its application field. For example, it enables low-power Bluetooth Smart connectivity in wirelessly connected devices such as fitness and health tracking equipment, commercial lighting, sensors, and consumer electronics, offering an extended battery life of up to five years. In addition, the NRF51822-QFAC-R can be used in connected home products, including remote control, entertainment control and voice-activated applications. As an ultra-low-power wireless solution, it also supports wireless sensor networks, wireless charging and home automation solutions. Additionally, since it provides 2.4GHz proprietary support for both a custom protocol stack and protocol activation capabilities, it can also be used in industrial automation, proprietary wireless applications and software-defined radios.

The working principle of the NRF51822-QFAC-R is based on a unidirectional radio frequency (RF) transmitter and receiver with its own low-power chip architecture. The main principles of operation include the digital logic and analog circuitry of a receive and transmit section. In the receive section, the input RF signal is amplified, filtered, converted, down-converted and digitized before being sent to the digital baseband processor. In the transmit section, a Digital Baseband Processor transforms the digital signal before being up-converted, filtered, amplified and transmitted. The Digital Baseband Processor also has the ability to work in both receiver and transmitter modes to perform one of the most energy-efficient transitions.

The NRF51822-QFAC-R also includes an on-chip power amplifier and an efficient power management circuit that provides an optimally designed core voltage for any frequency. The power management circuit has an adjustable output power level that can be adjusted to meet the needs of the application. It also supports a wide range of features such as integrated NFC and Bluetooth Low Energy support that enable secure setup of Bluetooth Smart devices.

Apart from its wide range of application field and its working principle, the NRF51822-QFAC-R is also highly advantageous in terms of its performance. It has a maximum communication rate of 2Mbit/s and features a low power consumption profile that can reduce the power used in each aspect of a communication. The small size of the device and its low cost make it suitable for high R&D production volumes. Additionally, the device meets the demands of modern wireless applications offering scalability, a range of state-of-the-art features and flexible system integration.

In conclusion, the NRF51822-QFAC-R is a multi-protocol Bluetooth 4.2, Bluetooth 5, 802.15.4, and 2.4GHz proprietary systems-on-chip from Nordic Semiconductor. It is an RF Transceiver IC that can be used in many low-power wireless applications such as fitness and health tracking equipment, commercial lighting, sensors, consumer electronics, remote control, entertainment control, and voice-activated applications. Its working principle is based on a unidirectional RF transmitter and receiver with its own low-power chip architecture. Additionally, it has a maximum communication rate of 2Mbit/s and an adjustable power level. The NRF51822-QFAC-R is thus a highly advantageous SoC for

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