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©2016 Integrated Device Technology, Inc.

October 20, 2016

8P34S2108 Datasheet

LVDS Driver Termination

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. IDT 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 IDT 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

LVDS

Driver

LVDS

Receiver

LVDS

Driver

LVDS

Receiver

C

2

2