I have a question about the VCM pin of the AD9650.
I am using the AD9650 by the configuration like Figure 79 in the AD9650 datasheet.
In my circuit, the VCM of AD9650 operates abnormally.
AS for the operation, the VCM does a continuous toggle to the High/Low level(1.8Vp-p).
When the VCM disables servo bit clearing 0x0F register of the AD9650, 1.8V level is output from the VCM.
I confirmed the VCM of AD9650 with the ADC driver cutting it.
However, the behaver of VCM did not change.
Could I have advice of the cause of this problem?