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Discussion in 'Electronic Components' started by Larry Cates, Aug 15, 2007.

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  1. Larry Cates

    Larry Cates Guest

    Looking for cheap RF IC's for data acquisition. Transmit/receive just a
    few bits (20 or less) at time
    no faster than 20 or so times a second.
    Thanks in advance for any responses.
  2. Hal Murray

    Hal Murray Guest

    They make single chip solutions for remote controls and
    car lock/unlock. The come in transmit, receive, and transciever

    Try googling for >ISM FSK< or ASK. That should find a few
    chips and you can then try the manfacturers main web stuff
    to find the rest of their offerings.
  3. Gary Tait

    Gary Tait Guest

    (Hal Murray) wrote in
    I don't know what has changed the past few years, but in mass produced RF
    remotes and their receivers, the transmitter is built with discretes, with
    the antenna on the PCB. The chip only produces the data ro be trasnmitted.
    The receiver also has a discrete tuned circuit (also with PCB based
    resonant circuits), with an LM324 or LM358 as a data detector.
  4. Hal Murray

    Hal Murray Guest

    Here is an example of the sort of stuff I was thinking of:
  5. Yianni

    Yianni Guest

    Because I was serching for rfid chips before a few weeks, I was found the
    Surprising, searching again the Atmel site for rfid I found nothing for the
    above chips.
    But to avoid an external coil, if you select a 13.56MHz rfid you can use a
    pcb coil. E.g. check the MCRF450.
  6. Yianni

    Yianni Guest

    Also MCRF355/360, AT88RF020.

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