AN 522: Implementing Bus LVDS Interface in Supported Intel® FPGA Device Families

ID 683803
Date 7/31/2018

Stub Length

Longer stub length not only increases the flight time from the driver to the receiver, but also results in a larger load capacitance, which causes larger reflection.
Figure 20. Effect of Increasing Stub Length (Driver in U1, Receiver in U10)This figure compares the VID at U10 when the stub length is increased from one inch to two inches and the driver is at U1.

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