AD9200 Analog input range

Hello

I have a problem AD9200,

When setteing is AVDD=5.5V, REFTS=2.5V,REFBS=0.56V,CLAMP=0.66V , output digital data is strange sometimes.

But setting is AVDD=5.5V, REFTS=5.0V,REFBS=3.0V,CLAMP=3.1V, output digital data is correct.

If it's something considered, I want you to tell me.

Best regards