On 06/17/2010 09:58 AM, Elvis Dowson wrote:
Hi,
I would like to design a custom board based on the Spartan-3AN FPGA,
based on the Spartan-3AN FPGA Starter Kit, but would like to build my own RF
front-end.
http://www.analog.com/en/rfif-components/rxtx-subsystems/products/index.html
If I look at the AD9874 IF-to-Bits RX subsystem component
http://www.analog.com/en/rfif-components/rxtx-subsystems/ad9874/products/product.html
it contains an ADC and a whole bunch of other stuff.
Could someone help me by pointing out what other components or parts I should
be looking at to build the RF receiver front-end to start with, assuming that I
am going to learn from the USRP2 design, and the fact that it already has the
Spartan-3AN FPGA, and I'm going to build my own RF front-end?
Designing an RF frontend from scratch sounds like a challenge, and the
AD9874 requires a fair amount of support circuitry. Have you considered
trying something a bit more integrated? How about this:
http://sdrtrack.drupalcafe.com/
While that project isn't getting a lot of support lately, there are
schematics and supporting materials available and the part that it's
based on is highly integrated and fairly inexpensive:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=296-21570-1-ND
Eric
_______________________________________________
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
