ATSAMR21E17A-MU RF/IF and RFID

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

RF transceiver ICs have been used for the last couple of decades to facilitate wireless communications. One of the latest entry into this field is the ATSAMR21E17A-MU from Atmel. This particular IC is a 10MBit/s digital transmit/receive IC with a 5-MHz RF bandwidth. It is designed to provide low-power radio communications in the 13.56 MHz and 862-915 MHz ISM frequency bands. This article examines the application field and working principle of the ATSAMR21E17A-MU.

The ATSAMR21E17A-MU is optimised for the 13.56 MHz ISM frequency band. It provides a highly integrated solution for low-power radio applications such as access control, card-security systems, and sensor networks. It utilises a direct-modulated architecture to provide low-noise operation and robustness to interference. The direct data path allows for maximum speed and reliability when communicating over the 13.56 MHz ISM frequency band.

The ATSAMR21E17A-MU features a high-performance digital transmit (TX) and receive (RX) architecture. The chip is integrated into the circularly polarized antenna (CPA) and/or single port patch antenna (SPSA) for improved performance. The CPA antenna provides wideband operation for improved range and directivity. The SPSA offers a very small form factor whilst still providing high-performance communication. The ATSAMR21E17A-MU features an onboard DSP processor that provides superior filtering performance for all communication types.

The ATSAMR21E17A-MU also supports multiple Communication Modes for a variety of radio communication types. The chip supports Frequency Hopping (FHSS), Time Division Multiple Access (TDMA), Orthogonal Channel Access (OCA), and Carrier Sense Multiple Access (CSMA). In addition, the chip is capable of transmitting and receiving up to 10Mbits/s data without any degradation in performance. The high speed data rate provided is ideal for a wide variety of applications, including access control, security systems, remote control and sensing, and automatic acquisition of data.

The ATSAMR21E17A-MU also supports the latest wireless protocol standards, including IEEE 4.15.4 and ZigBee. The chip is compliant with the 802.15.4 PHY layer allowing it to integrate with existing ZigBee and other networks. This allows users to easily transition their existing wireless protocols into the new wireless protocols. Additionally, the chip is backwards compatible for improved interoperability.

Onboard the ATSAMR21E17A-MU are two low-power audio analog to digital converters (ADC) and two digital-to-analog converters (DAC), for audio signal processing. The onboard Digital Signal Processor (DSP) allows the IC to make digital signal processing decisions on-the-fly. The ATSAMR21E17A-MU also features Forward Error Correction (FEC) to ensure reliable communication between two nodes.

The ATSAMR21E17A-MU\'s onboard regulator provides up to 8V operation. The IC also supports an on-chip power regulator, with up to 3.3V output and a power save mode that allows the IC to stay in standby mode with reduced current consumption. The ATSAMR21E17A-MU also supports a wide range of external peripherals, including LEDs, GPIOs and counter timers.

The ATSAMR21E17A-MU is designed for low-power applications in the 13.56 MHz ISM frequency band, offering peak power output of 13dBm. The chip features support for multiple communication protocols, as well as a wide range of peripherals for flexibility. On-chip forward error correction ensures reliable communication between two nodes. The onboard DSP and audio processors allow for signal processing decisions on-the-fly, providing superior performance and reliability.

The specific data is subject to PDF, and the above content is for reference