DCFIFO and AD9433 problem

Sir,

Yes, I am aware that a data block from the ADC will be repeated multiple times at the DAC output if the DAC is running at a faster clock.

Again, I'm only doing this to check if the output of the ADC is as expected. I know that the ADC output is correct if the DAC output is repeating at 230 kHz. But again, my problem is with the ADC and FIFO connection. I don't really need the DAC. I only use the DAC to check if the ADC is running properly.

Now the problem is, when I feed the ADC output to the DAC and a FIFO, the DAC output becomes 760 kHz. In other words, the ADC is running properly when connected to the DAC alone but it is not running properly when the ADC is connected to a DAC and a FIFO.

What is he FIFO doing to the ADC?

Thanks for the reply, appreciate the help