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©2016-2023 Renesas Electronics Corporation

November 20, 2023

8P34S2108 Datasheet

LVDS Driver Termination

For a general LVDS interface, the recommended value for the termination impedance (ZT) is between 90 and 132. The actual value

should be selected to match the differential impedance (Z0) of your transmission line. A typical point-to-point LVDS design uses a 100

parallel resistor at the receiver and a 100 differential transmission-line environment. In order to avoid any transmission-line reflection

issues, the components should be surface mounted and must be placed as close to the receiver as possible. Renesas offers a full line of

LVDS compliant devices with two types of output structures: current source and voltage source. The standard termination schematic as

shown in Figure 7 can be used with either type of output structure. Figure 8, which can also be used with both output types, is an optional

termination with center tap capacitance to help filter common mode noise. The capacitor value should be approximately 50pF. If using a

non-standard termination, it is recommended to contact Renesas and confirm if the output structure is current source or voltage source

type. In addition, since these outputs are LVDS compatible, the input receiver’s amplitude and common-mode input range should be

verified for compatibility with the output.

Figure 7. Standard LVDS Termination

Figure 8. Optional LVDS Termination