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AD9522-1 REF IN Clock

Question asked by sneha on Dec 3, 2015
Latest reply on Jan 26, 2016 by pkern

Hi,

 

Looking for a support on AD9522-1 input reference clock.  We are using singled ended reference clock[one from FPGA, one from oscillator], with AC coupling and AD9522 internal DC offset is off.

 

When we probed on the REF_IN pin, there is a -0.4V offset in the clock signal. Can you please check it?

 

Attaching the schematic and waveform of the corresponding section.

 

Thank you,

 

Regards,

Sneha

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