Datasheet

OUT+
OUT-
50:50:
V
CC
CML3.3V or CML2.5V
Driver
100: Differential T-Line
DS10BR254
Receiver
IN+
IN-
100:
OUT+
OUT-
DS10BR254
Receiver
IN+
IN-
100: Differential T-Line
100:
LVDS
Driver
DS10BR254
SNLS260D DECEMBER 2007REVISED APRIL 2013
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FUNCTIONAL DESCRIPTION
The DS10BR254 is a 1.5 Gbps 1:4 LVDS repeater optimized for high-speed signal routing and distribution over
lossy FR-4 printed circuit board backplanes and balanced cables.
Table 1. Input Select Truth Table
CONTROL Pin (SEL_in) State Input Selected
0 IN1
1 IN2
Input Interfacing
The DS10BR254 accepts differential signals and allows simple AC or DC coupling. With a wide common mode
range, the DS10BR254 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
DS10BR254 inputs are internally terminated with a 100Ω resistor.
Figure 2. Typical LVDS Driver DC-Coupled Interface to an DS10BR254 Input
Figure 3. Typical CML Driver DC-Coupled Interface to an DS10BR254 Input
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Product Folder Links: DS10BR254