DS90LV804_16 Datasheet, PDF (6/15 Pages) Texas Instruments – 4-Channel 800 Mbps LVDS Buffer/Repeater

DS90LV804
SNLS195L – SEPTEMBER 2005 – REVISED APRIL 2013
CML3.3V or CML2.5V
Driver
V_CC
50:
50:
OUT+
100: Differential T-Line
IN+
DS90LV804
Receiver
100:
OUT-
IN-
Figure 3. Typical CML Driver DC-Coupled Interface to DS90LV804 Input
LVPECL
Driver
OUT+
OUT-
150-250:
100: Differential T-Line
IN+
LVDS
Receiver
100:
IN-
150-250:
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Figure 4. Typical LVPECL Driver DC-Coupled Interface to DS90LV804 Input
OUTPUT INTERFACING
The DS90LV804 outputs signals that are compliant to the LVDS standard. Their outputs can be DC-coupled to
most common differential receivers. Figure 5 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.
DS90LV804
Driver
OUT+
100: Differential T-Line
Differential
Receiver
IN+
100:
OUT-
CML or
100:
LVPECL or
LVDS
IN-
Figure 5. Typical DS90LV804 Output DC-Coupled Interface to an LVDS, CML or LVPECL Receiver
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