RF IC's

L

Larry Cates

Guest
Hi,
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.
 
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.
Click to expand...
They make single chip solutions for remote controls and
car lock/unlock. The come in transmit, receive, and transciever
version.

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.

--
These are my opinions, not necessarily my employer's. I hate spam.
 
hal-usenet@ip-64-139-1-69.sjc.megapath.net (Hal Murray) wrote in
news:3dCdndiiPZXF81_bnZ2dnUVZ_obinZ2d@megapath.net:

They make single chip solutions for remote controls and
car lock/unlock. The come in transmit, receive, and transciever
version.
Click to expand...
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.
 
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.
Click to expand...
Here is an example of the sort of stuff I was thinking of:
http://www.atmel.com/dyn/products/devices.asp?family_id=651

--
These are my opinions, not necessarily my employer's. I hate spam.
 
Because I was serching for rfid chips before a few weeks, I was found the
AT24RF04
http://www.alldatasheet.com/datasheet-pdf/pdf/56070/ATMEL/AT24RF08.html
(simple)
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.

--
Yianni
9jir_2006@yahoo.gr
(Remove the number nine from my email address to send me email)



"Hal Murray" <hal-usenet@ip-64-139-1-69.sjc.megapath.net> wrote in message
news:74adnWCYm_aW7V7bnZ2dnUVZ_uLinZ2d@megapath.net...
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.

Here is an example of the sort of stuff I was thinking of:
http://www.atmel.com/dyn/products/devices.asp?family_id=651

--
These are my opinions, not necessarily my employer's. I hate spam.
Click to expand...
 
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