I currently use the DAC AD9789 wiht only one channel input ad Fbaud of integer part of Fdac, FS pis is therefore always high. Now I must to interface the DAC with four channel input that are not a integer multiple of Fdac. I must use a P/Q interpolator, then the FS pin will be active.
I will use this type of connection from FPGA to DAC (bus 32-bit, data 16-bit, complex) :
How use a FS pin to align the data ? On the data sheet is not very clear and there is not an example.
This is what I understand:
It' true ?
Thanks very much.