I am trying to develop an FPGA driver for the AD9649, and I have bought the EVB for the chip as well as the FPGA controller board. That's a start, I saw the quality of the signal brought in was good enough.
Now I'd like to connect the EVB to an FPGA dev kit, like in this wiki. I have now realized the interposer board required for this is obsolete, and isn't stocked anywhere. Is there any way I can get one of these boards still? I want to work on the FPGA driver in parallel with laying my own board. How do people usually develop to a new ADC without taking the plunge and designing a whole board and driver all at once. I'd like to separate possible layout problems from driver problems.
Since most of the legacy boards have been redesigned with the FMC interface, we obsoleted the interposer board and have depleted all the remaining inventory.The AD9649/AD9266/AD9629/AD9609 family are the ones that we didn't update with the FMC interface since these are a very straight forward CMOS parallel interface with echoed DCO.The one exception in the family is the AD9266 16-bit as this uses an 8-bit DDR CMOS data interface also with DCO. These ADCs (along with most ADIs pipeline ADCs) also include a register to allow to tuning the DCO delay so the user can "walk the clock" to pick the right data capture timing.
You can use our PCB layout and BOM that is on the interposer page. https://www.analog.com/en/design-center/evaluation-hardware-and-software/evaluation-boards-kits/eval-adc-fmc-int.html#eb-overview
There are many quick turn PCB shops that can make a couple of boards for you for like $100. PCB Express, Gorilla are a couple. Best Regards,Chris
Thanks for your response. I guess I'll try that.