
IDT / ICS FEMTOCLOCKS CLOCK GENERATOR
8
ICS844001 REV A NOVEMBER 2, 2012
ICS844001
FEMTOCLOCKS CRYSTAL-TO-LVDS CLOCK GENERATOR
3.3V, 2.5V LVDS DRIVER TERMINATION
A general LVDS interface is shown in
Figure 4. In a 100
Ω
differential transmission line environment, LVDS drivers
require a matched load termination of 100
Ω across near
FIGURE 4. TYPICAL LVDS DRIVER TERMINATION
the receiver input. For a multiple LVDS outputs buffer, if only
partial outputs are used, it is recommended to terminate the
unused outputs.
2.5V or 3.3V
+
-
VDD
100 Ohm Differential Transmission Line
R1
100
LVDS_Driv er