OUT+

OUT-

150-250:

100: Differential T-Line

LVDS

Receiver

IN+

IN-

100:

LVPECL

Driver

150-250:

OUT+

OUT-

50:

50:

CML3.3V or CML2.5V

Driver

100: Differential T-Line

DS25CP102

Receiver

IN+

IN-

100:

OUT+

OUT-

DS25CP102

Receiver

IN+

IN-

100: Differential T-Line

100:

LVDS

Driver

DS25CP102Q

www.ti.com

SNLS293E – MAY 2008 – REVISED APRIL 2013

Input Interfacing

The DS25CP102Q accepts differential signals and allows simple AC or DC coupling. With a wide common mode

range, the DS25CP102Q can be DC-coupled with all common differential drivers (i.e. LVPECL, LVDS, CML).

The following three figures illustrate typical DC-coupled interface to common differential drivers. Note that the

DS25CP102Q inputs are internally terminated with a 100

Ω resistor.

Figure 10. Typical LVDS Driver DC-Coupled Interface to DS25CP102Q Input

Figure 11. Typical CML Driver DC-Coupled Interface to DS25CP102Q Input

Figure 12. Typical LVPECL Driver DC-Coupled Interface to DS25CP102Q Input

Output Interfacing

The DS25CP102Q outputs signals that are compliant to the LVDS standard. Its outputs can be DC-coupled to

most common differential receivers. The following figure 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 the respective receiver's data sheet prior to implementing the suggested interface implementation.

Copyright © 2008–2013, Texas Instruments Incorporated

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