On Wed, Mar 30, 2016 at 9:53 PM, Grzegorz Kasprowicz <gkasp...@elka.pw.edu.pl> wrote: > Maybe we should come back to the roots:) > What if we use standard FMCs (LPC) with DAC/ADC channels and RF stuff _on_ > them. > JESD204B and some pins would go to the FPGA while DAC and RF clock would be > fed externally. > In this way we leave general purpose AMC board and define its functionality > by FMC boards > If we make 3 flavours of FMCs: ADC+ADC, ADC+DAC,DAC+DAC, we would cover > several use cases: > Quad ADC, quad DAC, 1xADC 3xDAC, 3xADC 1xDAC. > FMCs with only DAC and RF stuff on it can be simple, 4 layer boards with > external sield. > Look at this shield (my project) > http://www.ohwr.org/projects/fmc-adc-130m-16b-4cha/wiki > In this way we could use existing AFCK for quick tests
I was about to suggest that we consider doing that as well. In the end the DAC/ADC can be on the mezzanine. It doesn't matter much in terms of cost. It makes shielding much easier and much more efficient, gets rid of all coax board-to-board connectors (which saves a lot of space again), allows testing on other carrier platforms, allows usage of other mezzanines. The only downside is that a standard FMC does not have much space. But maybe that's fine. Robert. _______________________________________________ ARTIQ mailing list https://ssl.serverraum.org/lists/listinfo/artiq
