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AD9681 Frame clk waveform

Question asked by M.raghieb on Nov 22, 2016
Latest reply on Dec 1, 2016 by DougI

we are noe testing AD9681 with zynq ZC706 , we used Analog devices Interposer in the setup , 

we enabled test mode of the chip and we got the following results 

our working mode was default configuration ( 16 bit , byte mode , sampling frequency = 25MHz ). 


We Expect FCO signal to be has freq 25Mz = 1/4 of bit clk frequency


The Problem FCO has strange behavior as shown in the image ,Although the code working fine in this case but it did not work at all when we used normal mode.