AD9834 LC Filter

What impedance should have an LC filter connected to IOUT pin of AD9834?

I have a low pass chebyshev filter with a cutoff frequency of 32.5 MHz with 50 ohm impedance designed with and built with commercial values

Signal without filter is without biasing:

But with filter attached signal is distorting.. In image yellow is signal DDS_OUT and blue is DDS_OUT_FILT

There is a lot of offset, vertical offset of track is shifted to show both tracks.

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