Datasheet

OUT+
OUT-
150-250:
100: Differential T-Line
LVDS
Receiver
IN+
IN-
100:
LVPECL
Driver
150-250:
OUT+
OUT-
DS25BR150
IN+
IN-
50:50:
V
CC
CML3.3V or CML2.5V
100: Differential T-Line
OUT+
OUT-
DS25BR150
IN+
IN-
100: Differential T-Line
LVDS
DS25BR150
SNLS257E –APRIL 2007–REVISED APRIL 2013 www.ti.com
Device Operation
INPUT INTERFACING
The DS25BR150 accepts differential signals and allows simple AC or DC coupling. With a wide common mode
range, the DS25BR150 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
DS25BR150 inputs are internally terminated with a 100Ω resistor.
Figure 6. Typical LVDS Driver DC-Coupled Interface to DS25BR150 Input
Figure 7. Typical CML Driver DC-Coupled Interface to DS25BR150 Input
Figure 8. Typical LVPECL Driver DC-Coupled Interface to DS25BR150 Input
OUTPUT INTERFACING
The DS25BR150 outputs signals are compliant to the LVDS standard. It 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.
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