Although requiring two signal wires rather than one, differential signals are much more immune to noise than single-ended signaling
This means that the same two physical data paths alternate between HS differential signaling and LP single-ended signaling
Application of Mathcad for simulating such single-ended signaling
is demonstrated by FIGURES 11 and 12.
Differential pairs are used to specifically create a closely coupled return path for the signal, eliminating most of the single-ended signaling
problems (like the aforementioned twisted pair).
With the addition of FlexMode[TM] interface technology, a multi-modal, SoC memory interface PHY, supporting both differential and single-ended signaling
, can be implemented in a single SoC package design with no additional pins.
We have paved multiple paths for the industry by providing solutions that extend single-ended signaling
beyond today's limits and developing the means for a seamless transition to differential signaling," said Sharon Holt, senior vice president and general manager of the Semiconductor Business Group at Rambus.
9-WA3, Pseudo-Differential Vector Signaling for Noise Reduction in Single-Ended Signaling
Dan Oh, Woopoung Kim, Joong-Ho Kim, John Wilson, Ralf Schmitt, Chuck Yuan, Lei Luo, Jade Kizer, John Eble and Fred Ware, "Study of Signal and Power Integrity Challenges in High-Speed Memory I/O Designs Using Single-Ended Signaling
The shielding is flexible to allow for column differential, row differential (for within-pair skew reduction), and single-ended signaling