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DIGITAL OUTPUT in AD9265-125EBZ

Question asked by Satyabrata@ece on Jan 3, 2013
Latest reply on Jan 4, 2013 by Satyabrata@ece

Hi,

 

I am Satyabrata. We are using AD9265 evaluation board. We gave analog input of 1V pk-pk, clock input of 100 MHz frequency and 1.8 V pk-pk sine wave.


We checked the pins of databus of the evaluation board.

 

Results what we have got are as follows


1. common mode voltage - 0.899 V

2. Vref - 0.996 V

3. DCO - 100 MHz frequency same as the input supply clock frequency, 1.8 V pk-pk value

4. D0 - voltage 1.813 V


I am attaching here the waveform we got on the oscilloscope. Please have a look at those.

Attachment(1) - waveform of DCO(channel 1) and D0(LSB)in channel 2

Attachment(2) - waveform of D15(MSB)


Now, please reply me whether these are the correct result or not.

 

Thanks.

Regards,

Satyabrata

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