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Question asked by amboyle on Jun 22, 2017
Latest reply on Jun 28, 2017 by rejeesh

We have been developing with this Analog Devices ADC/DAC board, but we need to use an external clock to drive it.  It looks like the external clock inputs to the on board AD9523 clock generator are not connected.  Do you know if there is another Gsps ADC/DAC card that can take an external clock?


I'm looking into modifying the FMC-DAQ2 to accept an external clock, but I'm just not sure how well it will work.  I've found a VCXO that will fit in the on-board TCXO spot.  I could add a wire to connect the voltage control.  It looks like the pads are exposed for the REF in signals, but may want to add an input buffer.  


I've done this type of work before and it's a little risky getting a solution like this working with good phase noise.  So an off the shelf solution would definitely be preferable.”


Any direction here, would be much appreciated.