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RX Data path timing AD9364 question

Question asked by bhatnagar.vaibhav81 on Mar 6, 2015
Latest reply on Mar 13, 2015 by rgetz

Hello,

 

We are using kintex705 with fmcomms4. We have hdl reference design for Vivado2013.4 with the recent version of NoOS driver.

We are running an OFDM modulator with tx_samp_freq of 10MHz which is 20MHz on data_clk.

 

We measure the data_clk, rx_frame signals on the test points. We found the delay of 3ns between data_clk and rx_frame, which is different than t_DDDV (1.25ns) mentioned on Page 103 in UG-673.

What could be the reason of this difference?

 

Thanks in advance.

 

Best regards,

 

Vaibhav and Payam

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