I am developing the R/D converter to use the resolver.
So, I am using the AD2S1200 12-bit R/D converter from ANALOG DEVICES.
During an experiment, I find a strange point.
EXC outputs voltage from AD2S1200 is not same as datasheet.
AD2S1200 which I am using has the EXC voltage, 4.5 Vp-p.
But, the datasheet is written “EXC voltages must be 3.34 ~ 3.83 Vp-p” page 4.
I have a question that why is the experiment value different from the datasheet value?
I attach the datasheet