DS10CP152_13 Datasheet, PDF (7/15 Pages) Texas Instruments – 1.5 Gbps 2X2 LVDS Crosspoint Switch

DS10CP152
www.ti.com
SNLS261E – OCTOBER 2007 – REVISED APRIL 2013
FUNCTIONAL DESCRIPTION
The DS10CP152 is a 1.5 Gbps 2x2 LVDS digital crosspoint switch optimized for high-speed signal routing and
switching over lossy FR-4 printed circuit board backplanes and balanced cables.
SEL1
0
0
1
1
Table 1. Switch Configuration Truth Table
SEL0
0
1
0
1
OUT1
IN0
IN0
IN1
IN1
OUT0
IN0
IN1
IN0
IN1
Table 2. Output Enable Truth Table
EN1
EN0
OUT1
OUT0
0
0
Disabled
Disabled
0
1
Disabled
Enabled
1
0
Enabled
Disabled
1
1
Enabled
Enabled
Input Interfacing
The DS10CP152 accepts differential signals and allows simple AC or DC coupling. With a wide common mode
range, the DS10CP152 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
DS10CP152 inputs are internally terminated with a 100Ω resistor.
LVDS
Driver
OUT+
100: Differential T-Line
IN+
DS10CP152
Receiver
100:
OUT-
IN-
Figure 5. Typical LVDS Driver DC-Coupled Interface to an DS10CP152 Input
CML3.3V or CML2.5V
Driver
V_CC
50:
50:
OUT+
100: Differential T-Line
IN+
DS10CP152
Receiver
100:
OUT-
IN-
Figure 6. Typical CML Driver DC-Coupled Interface to an DS10CP152 Input
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