may I ask one simple question?
1.when I use AD1937 EVB, coudl I do a loop back play mode that AN1or AN2 input and DAC1 or DACx output directly?
if could, how can I seting, is that AUX mode?
2. if I could use stand along slave mode,in this mode, AN1 input analog should be Serial audio to Optical TX output, right?
then I connect optical TX to RX in board, RX would play in 4DAC output, right?