LVDS

Z = 50 W

CDCLVD2108

100 W

Z = 50 W

LVDS

Z = 50 W

CDCLVD2108

100 nF

Z = 50 W

100 W

100 nF

CDCLVD2108

www.ti.com

SCAS905C – OCTOBER 2010 – REVISED DECEMBER 2010

LVDS OUTPUT TERMINATION

The proper LVDS termination for signal integrity over two 50

Ω lines is 100 Ω between the outputs on the

receiver end. Either dc-coupled termination or ac-coupled termination can be used for LVDS outputs. It is

recommended to place termination resister close to the receiver. If the receiver is internally biased to a voltage

different than the output common mode voltage of the CDCLVD2108, ac-coupling should be used. If the LVDS

receiver has internal 100

Ω termination, external termination must be omitted.

Unused outputs can be left open without connecting any trace to the output pins.

Figure 13. LVDS Output DC Termination

Figure 14. LVDS Output AC Termination With Receiver Internally Biased

Copyright © 2010, Texas Instruments Incorporated

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Product Folder Link(s): CDCLVD2108