SI and EMI performance of signaling scheme through UTP cable

Signal integrity (SI) and electromagnetic interference (EMI) performances of single-ended and differential-pair schemes through an unshielded twisted pair (UTP) cable have been studied systematically through experiment. The EMI performance is evaluated with measurement of common-mode (CM) noise current on the UTP cable. The SI performance is assessed by measurement of digital waveforms with and without the UTP cable connected.