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ADS4129: Can't detect output clock

Prodigy 170 points

Replies: 7

Views: 121

Part Number: ADS4129


I can't detect any output clock. I'm using an lvpecl input. The P of this clock signal side can be seen on the follwing image (which follows the 1.6vpp differential):

-The output clock is just two DC values 0.9V and 1.2V.

-The VCM is ok.

-At the moment I don't have and input signal connected  and I'm lacking the closest decoupling capacitors. 

-I also tried it at  higher frequencies (15MHZ,125MHz).

-I didn't use the spi interface yet.

Am I doing something wrong or did I kill de ADS4129?

Thank you,

Best Regards,