Product category:
Communications ICs (Wired)
News Release from: Gennum Corp | Subject: GN1002 and GN2001
Edited by the Electronicstalk Editorial
Team on 27 July 2001
Equalisers aid high-bandwidth
transmission
Gennum has announced its first products for the datacomms market: backplane and copper-cable receive-end equaliser ICs capable of operating at serial datarates up to 10.7Gbit/s.
Gennum has announced its first products for the datacomms market: backplane and copper-cable receive-end equaliser ICs capable of operating at serial datarates up to 10.7Gbit/s High-datarate transmission over copper cable or printed circuit board traces produces significant signal distortions that greatly reduce the length a signal can travel
This article was originally published on Electronicstalk on 20 Mar 2001 at 8.00am (UK)
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Gennum's new datacomms equalisers, GN1002 and GN2001, are designed to compensate for this high-frequency attenuation, increasing the useable length of cable or traces in high-datarate applications.
"These products position us to enter the high-end datacommunications marketplace, capitalising on increasing demand for higher-bandwidth data networks", said Ian McWalter, President and CEO of Gennum Corporation.
"This technology was developed using our high speed transmission expertise and extends the reach of lower cost copper interconnect solutions for networking".
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The GN2001, a 10Gbit/s backplane equaliser, is the world's highest-speed equaliser, capable of operating at serial datarates up to 10.7Gbit/s.
A receive end equaliser, it enables serial transmission over FR-4 backplanes with trace lengths of at least 635mm (25in) at 10.7Gbit/s.
Target applications include backplane interconnects for optical networking equipment, such as 10Gbit/s Ethernet switches, 10Gbit/s Fibre Channel switches, terabit routers, metro-area networking equipment, digital crossconnects and other high-speed systems.
The device can also be used for serial transmission over copper cable for lengths up to 10m.
The GN1002 is a receive-end backplane equaliser capable of operating up to 6.4Gbit/s.
The device enables serial transmission over backplanes with trace lengths of at least 635mm (25in) at 6.4Gbit/s.
Target applications include higher speed next generation network and storage equipment, including interconnects at 2X the speed of the XAUI and Infiniband standards.
The device can also be used for serial transmission over copper cable for lengths up to 10m.
Gennum equaliser devices are easy to use because they do not require any adjustments or training sequences for different trace lengths and datarates.
The devices operate on standard bilevel signalling, which means that the interconnect is inherently more robust than schemes using multilevel signalling.
For backplane designers the equalisers provide increased flexibility in board layout, the ability to use standard board materials, and a means to increase overall backplane capacity by replacing multiple lower speed parallel lines with a single higher speed serial line.
Furthermore, as the devices can be used at any datarate up to the specified maximum, they enable future-proof designs for higher speeds by allowing designers to increase ASIC I/O speeds without redesign of the backplane link, thereby reducing engineering design costs and time to market for higher speed products.
Parts are currently available for limited sampling.
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