LVDS用户手册第四版
National Semiconductor’s LVDS Owner’s Manual, frst published in spring 1997, has been the industry’s “go-to design guide” over the last decade. Te owner’s manual helped LVDS grow from the original IEEE 1596.3-1996 Standard for Low-Voltage Differential Signaling (LVDS) for Scalable Coherent Interface (SCI) into the workhorse
technology it is today.
LVDS is now pervasive in communications networks and used extensively in applications such as laptop computers, ofce
imaging, industrial vision, test and measurement, medical, and automotive. It provides an attractive solution - a small-swing
differential signal for fast data transfers at signifcantly reduced power and with excellent noise immunity. Along with the
applications, LVDS continued to evolve over the last decade to meet specifc requirements such as Bus LVDS and Multipoint
LVDS. For example, the latest LVDS products are capable of data rates in excess of 3 Gbps while still maintaining the low
power and noise immunity characteristics.
Today, many applications require even faster data rates and longer transmission paths. Terefore, designers should consider
technologies such as Current-Mode Logic (CML) and signal conditioning for both LVDS and CML. Tat is why this new
Fourth Edition includes practical design techniques for these technologies as well as LVPECL and LVCMOS.
Tis owner’s manual provides useful and current information. It begins with a brief overview of the three most common
high-speed interface technologies (LVDS (with variants B-LVDS and M-LVDS), CML, and LVPECL) a review of their
respective characteristics, and a section on selecting the optimal technology for an application. Te manual then covers
relevant topics such as level translation, jitter, signal conditioning, and suggested design approaches. Tis practical information will help you select the right solution for today’s interface design issues.
