I am looking at using an ADS6422 to take in four 5MHz signals from an array of antennas that receive a basic 2.5GHz signal. The signal from the antennas is taken down to 5MHz and I have been tasked with the analogue to digital conversion and PIC programming. As such I have a PIC18f2620 ready to program, but ADC is an area of expertise that I am sorely lacking- even how to implement into a circuit!
I just wanted to check that it was in fact possible to interface the ADS6244 and the PIC (via SPI?), and if there are any example circuits/SPICE models that I could look into to get started on this.
Any help would be greatly appreciated!
Note: The reason we are wanting a high sampling rate is so we can have a large number of samples per period. We are attempting to beamform the four signals, and my predecessor indicated that because, for the moment, we are using a pure, unmodulated 2.5GHz signal it would be best to simply delay the signals rather than using complex coefficients. This is simply for demonstration purposes at the moment, so that we can show that the principle application works, and then we'll probably move on to more complex implementation. I have previously only been involved with software and hardware implementation is a particularly grey area for me.