{HEAD ~ The DUT} is part of a source series terminated serial link transmitter, in which two branches of parallel transistors {TAIL ~ each} provide an impedance value when particular transistors of the parallel branch are turned on 
{ HEAD ~ The DUT } is part of a source series terminated serial link transmitter , in which two branches of parallel transistors { TAIL ~ each } provide an impedance value when particular transistors of the parallel branch are turned on
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH