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