ICS8545I

LOW SKEW, 1-TO-4, LVCMOS/LVTTL-TO-LVDS FANOUT BUFFER

IDT™ / ICS™ LVDS FANOUT BUFFER

10

ICS8545BGI REV. B MARCH 02, 2009

3.3V LVDS Driver Termination

A general LVDS interface is shown in Figure 2. In a 100

Ω

differential transmission line environment, LVDS drivers require a

matched load termination of 100

Ω 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.

Figure 2. Typical LVDS Driver Termination

3.3V

LVDS Driver

R1

100

Ω

–

+

3.3V

50

Ω

50

Ω

100

Ω Differential Transmission Line