Silicon Protection Arrays Application Guide LVDS (Low Voltage Differential Signaling) Considerations: ● LVDS is a low noise, low-voltage signal scheme that uses a small current (typically 3.5mA) to generate a voltage drop across a 100Ω resistor to convey information or data → Data rates can vary per application but the ANSI/TIA/EIA-644-A standard recommends a maximum of 655Mbps. ● The medium/high speed bus requires a low capacitance device in 1-6pF range (typically) → LVDS schemes will vary in terms of the total number of channels used → Protection of 8 data lines is shown below (i.e. CLK+/CLK- and Ax+/Ax-) Application Schematic: LVDS Interface LVDS Controller CLK+ CLKA0+ A0Outside World IC A1+ A1A2+ A2- Signal GND Case GND SP4060 Case GND Recommended SPA Devices: SP4060-08ATG ESD Level (Contact) ±30kV Lightning (tP=8/20μs) 20A I/O Capacitance 4.4pF # of Channels 8 SP3050-04HTG ±20kV 10A 2.4pF 4 Ordering Number ©2009 Littelfuse, Inc VRWM Packaging 2.5V MSOP-10 6V SOT23-6 15