184.108.40.206. Emulated LVDS, RSDS, and Mini-LVDS Termination
The I/O banks also support emulated LVDS, RSDS, and mini-LVDS I/O standards.
Emulated LVDS, RSDS and mini-LVDS output buffers use two single-ended output buffers with an external single-resistor or three-resistor network, and can be tri-stated.
The output buffers, as shown in this figure, are available in all I/O banks. RS is 120 Ω and RP is 170 Ω.
To meet the RSDS or mini-LVDS specifications, you require a resistor network to attenuate the output-voltage swing.
You can modify the three-resistor network values to reduce power or improve the noise margin. Choose resistor values that satisfy the following equation.
For information about the data rates supported for external single resistor or three-resistor network, refer to the device datasheet.
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