The data output control means 7 administers to output data to {TAIL ~ M sets} of {HEAD ~ digital/analog converting means} 
The data output control means 7 administers to output data to { TAIL ~ M sets } of { HEAD ~ digital / analog converting means }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD