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AD7988 ADC evaluation. Exact Sampling Frequency.

Question asked by avalles on Oct 10, 2016
Latest reply on Oct 16, 2016 by Gnib

We are testing the AD7988 analog converter using the EVAL-AD7988-5SDZ  and the EVAL-SDP-CB1Z. We would like to acquire 25600 sps, but when we use the visual aplication to manage the EVAL-SDP-CB1Z the "Samplin Frequency" is changed to 25565 sps (very close but not exactly what we need).

We have tried to change the sCLK Frequency value but we don't get 25600 sps. For example:  

       -sCLK Frequency 6*10^7--> Sampling Frequency: 25565

       -sCLK Frequency 6*10^6--> Sampling Frequency: 25532

Is possible to get exactly 25600 sps? How? 

You can find attatched the window of the application to configure this.

Thanks in advace.

 

   

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