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LVDS crosspoint switch delivers 3.125Gbps

Posted: 10 Sep 2007 ?? ?Print Version ?Bookmark and Share

Keywords:LVDS crosspoint switch? jitter performance? data transmission?

DS25CP104

National Semiconductor's new LVDS 4 x 4 crosspoint switch delivers the what it claims to be the best jitter performance (10ps typical) at data transmission rates up to 3.125Gbps.

The DS25CP104 is well-suited for clock and data switching/routing in telecom, professional video, storage and ATE applications. The low-power LVDS device's jitter and signal conditioning performance enables OEMs to use less costly cable, connectors and components.

The device also offers a feature set to enhance signal integrity in demanding applications such as XAUI (telecom) and SMPTE 424M (pro video). For example, the product consumes only 122mW per channel while boosting and equalizing FPGA or ASIC signals over cables and FR-4 backplanes.

In addition, the DS25CP104 inputs have a wide common-mode voltage range that allows it to accept low-voltage positive-emitter-coupled logic, current-mode logic and LVDS signal levels without using coupling capacitors. The system designer has maximum flexibility configuring the DS25CP104 with external pin control or a serial system management bus. The crosspoint also features 8kV ESD protection and 100? termination on the LVDS input and output pins to minimize insertion losses, component count and board space.

National also is introducing the DS10CP154, a lower-speed, lower-power 4 x 4 crosspoint switch targeted at applications up to 1.5 Gbps, which includes many of the same features as the DS25CP104.




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