Product category:
Communications ICs (Wired)
News Release from: National Semiconductor | Subject: DS90CP04
Edited by the Electronicstalk Editorial
Team on 19 July 2002
Crosspoint switch speeds comms networks
National Semiconductor has unveiled the industry's first LVDS-compliant crosspoint switch with a datarate of 2.5Gbit/s.
National Semiconductor has unveiled the industry's first LVDS-compliant crosspoint switch with a datarate of 2.5Gbit/s LVDS delivers the speed of emitter coupled logic (ECL) with the power and price of CMOS technology
This article was originally published on Electronicstalk on 5 Jan 2001 at 8.00am (UK)
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National's new four input, four output crosspoint switch, the DS90CP04, consumes half the power and occupies half the board area compared to competing switches on the market.
Its power- and space-saving features are ideal for multiple-port line cards in "carrier grade" voice and data network applications.
The product's cost-effectiveness and high-speed are also attractive for Gigabit Ethernet and digital video applications.
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National's new DS90CP04 crosspoint switch allows customers to design LVDS backplane systems for system performance boost while lowering power consumption.
"National's DS90CP04 crosspoint switch is our answer to the ever increasing demand from customers for a versatile system solution that combines high performance, low power and ease-of-use", said Alan Hutton, marketing manager of the wired communications division at National in Europe.
"There are many metro and enterprise communications network systems that can use the DS90CP04 as 'glue' logic that provides buffering, redundancy switching or multiplexing".
Data paths of the DS90CP04 are fully differential from input to output for low EMI.
The non-blocking architecture allows connections of any input to any output.
The device's switch matrix consists of four differential 4:1 multiplexers.
Each output channel connects to one of the four inputs common to all multiplexers and is capable of operating at 2.5Gbit/s and even at 3.125Gbit/s depending on loading and required signal integrity.
National's DS90CP04 excels in the following four primary applications.
In the long haul and metro communications area where speeds of 2.5Gbit/s are commonly used, the DS90CP04 provides a versatile switch-fabric solution for both simple and complex configurations.
In serial digital interfaces used in the broadcast video industry, the new device accommodates data rates for systems that include 270 and 360Mbit/s for standard definition and 1.5Gbit/s for high-definition television.
The DS90CP04 is also ideal for protection switching for Gigabit Ethernet serial streams through a backplane.
Another application is in the tributary cards of multi-access controllers used to concentrate several data and voice streams into one high-speed link.
"Our latest 4x4 crosspoint switch represents a major industry milestone", said Hutton.
"As carriers strive to build more efficient networks with greater switching capacity, the need for more flexible switch fabric solutions consuming less power and at a lower cost are all too apparent.
System designers could not achieve this performance level without the crosspoint solutions that National can provide".
Key features of the DS90CP04 include: a broadside pinout; the ability to expand to larger switch arrays; tristate LVDS outputs; a serial control interface with read-back capability; double register loading; and operation from a single 2.5 V supply.
The device's common mode input range is rail to rail and its temperature range is from -40 to +85C.
The DS90CP04 is manufactured on the company's advanced CMOS process technology.
National's new DS90CP04 4 x 4 low-power 2.5Gbit/s digital crosspoint switch is available for immediate shipment.
Packaged in a leadless leadframe package (LLP)-32, the device is priced at $12 each in quantities of 1000.
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