My current project is to build a control board for this specific CCD sensor : http://www.ccd.com/pdf/ccd_285.pdf I already have a functionnal board from a manufacturer but I am not satisfied. So, I figured that it would be fun to redesign the board to fit my requirements.
I decided to use An arduino Due as the main controller. Its tasks would be : - Interfacing with a Host PC - Receive the output of an external 16 bit ADC - Perform some noise reduction and Correlated double sampling - Manage the data transfer bus ( buffer 20 kBytes packets or more and send them trough the native usb port)
Now I also need to generate a total of 9 clocks at multiple voltages in order to drive the CCD sensor. Three of them are running at 28.64 MHz, the others are slower ( in the range of 10 kHz) . This is probably out of reach of the Arduino Due, so I don't really know how I could perform this task. I see two possibilities : - An FPGA could be a solution but it could also perform the Due's work so it seems a bit useless to combine it with a Due... Plus, I know nearly nothing about them. - A specific IC with oscillator and included PLL.
My choice would be the FPGA because it is extremely flexible, it can synchronize the clocks, distribute them and I like to learn. And mixing it with a Due could help keep things "simple" for a first protoype. But again, I really am no expert here, so your input could be helpfull, especially in the choice of a specific component.