RFD21733 Datasheet, PDF (9/76 Pages) List of Unclassifed Manufacturers – Compliance Approved 2.4 GHz RF Transceiver Modules with Built-In RFDP8 Application Protocol

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7/10/2011 1:40 AM
Patents Pending
RoHS CE • ESTI
RFD21733 • FCC • IC
RFD21743 • FCC
Approved & Certified
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RFDP8
RF Module
RFD21733
RFD21735
RFD21737
RFD21738
RFD21739
RFDP8
RFDANT
RFD21742
RFD21743
RFD21772
RFD21773
KEYFOBs
Revolutionary RFDANT Advantages
The RFD21743 and RFD21743 RFDANT are full 2.4 GHz radio transceivers including the RFDP8 protocol,
completely built into an antenna form factor allowing the entire radio transceiver to be outside your
product, where only the power and signal cable will extend into your product enclosure to then be
connected to your PCB with a simple 1.5mm SMT or THROUGH HOLE connector.
The RFD21742 and RFD21743 is functionally identical to the RFD21733 module and the RFD21772 and
RFD21733 Eval Boards work just like the RFD21737 Eval Board except it has an 11 pin 1.5mm connector
on it so the RFD21742 or RFD21743 RFDANT can plug into it. The RFD21772 is the Eval board for the
RFD21742 and the RFD21773 is the Eval board for the RFD21743. The RFD21772 and RFD21773 each
include one RFDANT. You need a pair for a complete system.
The RFD21742 and RFD21743 RFDANTs have been range tested at 2,000 feet which is 4x the range of
the RFD21733 which is at 500 feet. No special PCB layout is needed for the RFD21742 or RFD21743
RFDANT, simply just put a connector on your PCB and you are done . All this substantial range
increase is achieved all without any increase in current or battery consumption.
The RFDANT is RF Digital's Patent Pending Radio Inside Antenna product, which is a complete radio
transceiver and antenna mounted inside of an antenna enclosure, suitable for mounting to virtually any
type of end-product, regardless if the enclosure is plastic, metal, glass, really any material.
The entire radio transceiver is mounted inside the antenna enclosure, so there is no loss of RF power to
the antenna from the module, and results in the most effective power transfer ratio possible, providing
lowest power consumption possible to achieve a specific range.
The radio being inside of the antenna and outside the enclosure allows for more room inside the
enclosure for the designers application electronics.
Minimal interference with the internal electronics of the enclosure results in better range and
performance of the wireless system.
The actual effective antenna is pushed away from the enclosure, which reduces the effect of holding the
enclosure, therefore improving the performance, range and predictability of the users wireless system.
Logic level signals are communicated through an unshielded cable (not coax) to the RFDANT, which can
be run for long distances without any loss to the performance of the wireless transceiver.
By the antenna and module being fully outside allows for easy retrofit of nearly any product due to it not
consuming any internal space inside the enclosure, drill a hole and screw it in, add a nut inside to
secure it and wire the logic level signals to your electronics.
Mount on metal or plastic enclosures with no worry about ground effects.
Stable Antenna Pattern providing substantial, well-distributed, passive-gain for transmit and receive,
results longer repeatable range from your wireless system.
For free Schematic and Layout design reviews, send color screen captures or PDFs of your schematic and
layout to [e-mail]. RF Digital’s Support and Application Engineers are ready to help you get your
wireless application running to today. Just send your application questions to [e-mail] and receive
direct, fast and accurate answers. We look forward to helping you!!!
Free Applications Support • Email your application questions to [e-mail]
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