Whats the actually design for the 71056: The datasheet with r/c values 200Ohm/0,1uF or the an-679 applikation note, including 499Ohm/0,068uF r/c lowpass?
Is it possible to perform a difference potential about nearly 230Vac/2 between AGND and GND?
I want to add the 71056 into my given design - included a symmetrical zero-crossing-unut. So my given GND(for digital) is rised up to 230Vac/2 - 4.7V
Here the serial connented devices of the ZeroCrossingDetection between L/N = 230Vac:
And the shunt-gnd (AGND) is connected to L~