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Interfacing the MRF49XA transceiver to PIC microcontrollers

Posted: 17 Dec 2009 ?? ?Print Version ?Bookmark and Share

Keywords:transceiver MRF49XA? microcontrollers PIC? half duplex radio?

Microchip Technology's MRF49XA is a highly integrated RF transceiver, used in the 433-, 868- and 915MHz frequency bands. The transceiver uses FSK modulation internally.

A transceiver is a device that can both transmit and receive, thus the word transceiver. A system that can send and receive data at the same time is called a full-duplex system. On the other hand, a system that can only send or receive at a time is called a half-duplex system. Thus, half-duplex systems use only one frequency carrier and the two ends share the same frequency. Full-duplex systems use two carrier frequencies, known as uplink frequency and downlink frequency.

This application note discusses what is required to successfully develop a half-duplex radio application using the Microchip Technology MRF49XA transceiver.

View the PDF document for more information.

Click here to view related datasheets.





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