{HEAD ~ The data reproducing device} 12, wherein said filter circuit comprises at least a switching member for passing electric currents corresponding to {TAIL ~ said predetermined component}, and wherein said conversion circuit comprises a comparator whose input terminals are arranged to receive voltage values representative of the predetermined component, and a predetermined reference voltage value 
{ HEAD ~ The data reproducing device } 12 , wherein said filter circuit comprises at least a switching member for passing electric currents corresponding to { TAIL ~ said predetermined component } , and wherein said conversion circuit comprises a comparator whose input terminals are arranged to receive voltage values representative of the predetermined component , and a predetermined reference voltage value
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH