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AD9517 reference clock ac-coupling

Question asked by fmeinl on Dec 18, 2013
Latest reply on Dec 18, 2013 by pkern

Hello,

 

I'm facing problems with the AD9517-1 reference clock inputs.

I want to ac-couple a reference clock into REF2, but when I read back register 0x001f, I always get 0x08. The clock is not recognized by the monitor. From the data sheet I get that the clock has to be above 20MHz and 800mV p-p. Is this correct?

 

The monitors are turned on, as well as the single ended inputs (0x001b = 0xe8 and 0x001c = 0x06)

 

Thank you very much for your help!

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