ICS844071 Datasheet, PDF (10/15 Pages) Integrated Device Technology – FEMTOCLOCKS™ CRYSTAL-TO-LVDS CLOCK GENERATOR

ICS844071
FEMTOCLOCK™CRYSTAL-TO-LVDS CLOCK GENERATOR
3.3V, 2.5V LVDS Driver Termination
A general LVDS interface is shown in Figure 4. In a 100Ω
differential transmission line environment, LVDS drivers require a
matched load termination of 100Ω across near the receiver input.
For a multiple LVDS outputs buffer, if only partial outputs are used,
it is recommended to terminate the unused outputs.
V_DD
50Ω
LVDS Driver
50Ω
100Ω Differential Transmission Line
Figure 4. Tyical LVDS Driver Termination
R1
100Ω
3.3V or 2.5V
+
–
IDT™ / ICS™ LVDS CLOCK GENERATOR
10
ICS844071AG SEPTEMBER 26, 2007