Product description
LVDS (low-voltage differential signaling) is a high-speed, long-distance digital interface for serial communication (sending one bit at time) over two copper wires (differential) that are placed at 180 degrees from each other. This configuration reduces noise emission by making the noise more findable and filterable. LVDS is often used in SerDes configurations.
LVDS outputs are capable of keeping up with the high data rates and keeping noise emission low, thus protecting the performance of the analog front end. Additionally, some manufacturers have reduced the number of wires necessary to transmit the signals from one point to another by serializing the output bits onto an LVDS pair, which further improves accuracy by avoiding skew-related errors that can occur when transmitting data in parallel.
LVDS has become the solution for many applications that demand low power consumption and high noise immunity for high data rates. Since its standardization under ANSI/TIA/EIA-644, LVDS has been implemented in a diverse set of applications and industries. The LVDS standard provides guidelines that define the electrical characteristics for the driver output and receiver input of an LVDS interface, but stop short of defining a specific communication protocol, required process technology, media, or voltage supply. The general, non-application-specific nature of the standard has been conducive to the adoption of LVDS across a wide variety of commercial and military applications. Moreover, growing demands for bandwidth have resulted in the emergence of high-performance technologies such as PCI Express and HyperTransport, which are based on high-speed LVDS connections. The low power and high noise immunity aspects of LVDS, along with the abundance of commercial off-the-shelf (COTS) LVDS components has led many military and aerospace applications to select LVDS as a robust, long-term solution for high-speed data transmission.
