RFD21733 Datasheet, PDF (74/76 Pages) List of Unclassifed Manufacturers – Compliance Approved 2.4 GHz RF Transceiver Modules with Built-In RFDP8 Application Protocol

© Copyright, RF Digital
7/10/2011 1:40 AM
Patents Pending
RoHS CE • ESTI
RFD21733 • FCC • IC
RFD21743 • FCC
Approved & Certified
13715 Alton Pkwy • Irvine • CA • 92618
Tel: [phone] • www.RFdigital.com
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RFDP8
RF Module
RFD21733
RFD21735
RFD21737
RFD21738
RFD21739
RFDP8
RFDANT
RFD21742
RFD21743
RFD21772
RFD21773
KEYFOBs
RFD21734 and RFD21735 - Layout Examples 15
The gray area shows where to keep free from copper and components. The RFD21734 and
RFD21735 require the use of an external antenna and therefore the most common connector used
for this is an SMA and the examples below show a typical SMA connector footprint interface.
PCB thickness is 0.031 inch to 0.062 inch, double sided. The blue color shows ground plane under
the module on the solder side of the board.
If you place ground plane or any traces under the gray area marked no-copper, then you will not
have the option to use the RFD21731 / RFD21732 / RFD21733 which are the on-board chip antenna
versions of the RFD21734 / RFD21735. So it is your choice if you choose to flood copper under that
area or not. There is no benefit to flood copper in that area. If you choose to make a dual-mode
layout to handle both module options, with chip antenna or without (which is what we recommend),
then also advise with the layout configurations above for proper application.
We highly recommend that you look at the RFD21743 and RFD21742 before starting
a design with the RFD21734 or RFD21735. The RFD21742 and RFD21743 are RF
Digital’s Patent Pending RFDANTs, which are complete RF Modules setup for
external use and already in an antenna form factor allowing you to simply plug it
into any product instantly, without needing any layouts, RF connectors or coax
cables. They offer exceptional range, about 4x that of the RFD21733.
Save time, money and no need for additional compliance approvals since the
RFD21743 is FCC Approved and Certified
Free Applications Support • Email your application questions to [e-mail]
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