[Discuss-gnuradio] Analog Devices RF RX/TX subsystems for Spartan-3AN FPGA

[Elvis Dowson]

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?

Best regards,

Elvis Dowson