I'd like to know the type of the totem-pole output of the DB0 to the DB11 pins.
Both high and low sides of the totem-pole are used FET or transistor? Is there a resistor on the high side line?
If you have the equivalent circuit of the totem-pole, please send it to me.
I estimate how the AD7472 works if the short circuit between DBx and DBx+1 occured.