
IDT / ICS LVDS CLOCK GENERATOR
8
ICS844021BGI-01 REV. A NOVEMBER 6, 2012
ICS844021I-01
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.
LVDS Driver
R1
100
Ω
–
+
50
Ω
50
Ω
3.3V or 2.5V
V
DD
100
Ω Differential Transmission Line