OUT+

OUT-

CML or

LVPECL or

LVDS

IN+

IN-

100:

100: Differential T-Line

Differential

Receiver

SCAN90004

Driver

100:

OUT+

OUT-

150-250:

100: Differential T-Line

LVDS

Receiver

IN+

IN-

100:

LVPECL

Driver

150-250:

OUT+

OUT-

50:

50:

VCC

CML3.3V or CML2.5V

Driver

100: Differential T-Line

SCAN90004

Receiver

IN+

IN-

100:

SCAN90004

SNLS182P – MAY 2005 – REVISED APRIL 2013

www.ti.com

Figure 4. Typical CML Driver DC-Coupled Interface to SCAN90004 Input

Figure 5. Typical LVPECL Driver DC-Coupled Interface to SCAN90004 Input

OUTPUT INTERFACING

The SCAN90004 outputs signals that are compliant to the LVDS standard. Their outputs can be DC-coupled to

most common differential receivers. Figure 6 illustrates typical DC-coupled interface to common differential

receivers and assumes that the receivers have high impedance inputs. While most differential receivers have a

common mode input range that can accommodate LVDS compliant signals, it is recommended to check

respective receiver's data sheet prior to implementing the suggested interface implementation.

Figure 6. Typical SCAN90004 Output DC-Coupled Interface to an LVDS, CML or LVPECL Receiver

8

Submit Documentation Feedback

Copyright © 2005–2013, Texas Instruments Incorporated

Product Folder Links: SCAN90004