LVDS001EVK National Semiconductor, LVDS001EVK Datasheet - Page 2

• Manufacturer Part Number: LVDS001EVK
• Description: BOARD EVALUATION DS90LV001
• Manufacturer: National Semiconductor

Specifications of LVDS001EVK

• Main Purpose: Interface, LVDS, Repeater
• Utilized Ic / Part: DS90LV001
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

The LVDS – LVDS Buffer Evaluation Board
The LVDS – LVDS Buffer Evaluation Board is used to demonstrate the use and performance of the DS90LV001
device. Input LVDS or LVPECL signals or complementary signals from a signal generator can be probed
differentially and output LVDS channels can be probed single-ended or differentially.
The DS90LV001 can be used as a “stub-hider.” In many systems, signals are distributed across backplanes,
and one of the limiting factors for system speed is the “stub length” or the distance between the transmission line
and the unterminated receivers on the individual cards. Although it is generally recognized that this distance
should be as short as possible to maximize system performance, real-world packaging concerns and PCB
designs often make it difficult to make the stubs as short as the engineer would like. The DS90LV001, available
in the LLP (Leadless Leadframe Package) package, can improve system performance by allowing the receiver to
be placed very close to the main transmission line either on the backplane itself or very close to the connector on
the card. Longer traces to the LVDS receiver may be placed after the DS90LV001. This very small LLP
package is a 75% space savings over the SOIC package.
Shown below in Figure 1 and Figure 2 are two typical applications for the DS90LV001, the cable repeater
application and the backplane stub-hider application.
Figure 1: Cable Repeater Application
Figure 2: Backplane Stub-Hider Application
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