Hi all,
Would you mind if we ask ISO7842?
ISO73XX has DC-refresh pulse in order to correspond DC input.
(The datasheet shows a periodic update pulse is sent across the barrier to ensure the proper dc level of the output.)
ISO7842 has the same function(DC-refresh pulse), doesn't it?
And then, we don't understand the theory of DC-refresh.
So, if it is possible, could you let us know DC-refresh pulse?
Kind regards,
Hirotaka Matsumoto