Product category: Communications ICs (Wired)
News Release from: National Semiconductor | Subject: SCAN50C400
Edited by the Electronicstalk Editorial Team on 16 January 2004
Transceiver upgrades legacy backplanes
A new high-speed quad serialiser/deserialiser (serdes) transceiver can extend the life of today's high-end router backplanes by quadrupling the data throughput capacity.
A new high-speed quad serialiser/deserialiser (serdes) transceiver can extend the life of today's high-end router backplanes by quadrupling the data throughput capacity This new single-chip device, the SCAN50C400, allows communication system designers to easily upgrade existing switch/fabric cards and line cards to 5Gbit/s serial datarate performance without a costly replacement of existing backplanes
This article was originally published on Electronicstalk on 5 Jan 2001 at 8.00am (UK)
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With the announcement of the SCAN50C400, National Semiconductor now offers a complete portfolio of backplane solutions, ranging from Gigabit LVDS serdes for broadband infrastructure to multigigabit solutions for core and metro routers.
"Service providers and OEMs tell us they want to increase capacity and optimise CAPEX expenditures by upgrading existing equipment rather than investing in new platforms", said Stephen Kempainen, Marketing Director of the Communication Infrastructure Products group at National Semiconductor.
"National Semiconductor's new product makes this possible.
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The SCAN50C400's combination of 0.1 UI (unit interval) transmitter jitter performance and 0.65 UI receiver jitter tolerance enables our customers to upgrade their systems and achieve 5Gbit/s serial datarate by just upgrading fabric and line cards".
Targeting the high-speed backplane interconnect between line cards and fabric cards in applications like networking, storage and computing, National Semiconductor's four-channel 5Gbit/s SCAN50C400 transceiver works effectively on existing FR-4 backplanes originally designed for lower speeds of 1.25 and 2.5Gbit/s.
The device's CML (current mode logic) serial I/O supports multiple datarates at 1.25, 2.5 or 5Gbit/s over a printed circuit board backplane.
In total, the device provides a data link of up to 40Gbit/s total throughput.
National's SCAN50C400 features a high-speed serial I/O that delivers unmatched signal integrity and jitter performance, as well as built-in self-test (BIST) circuitry and loopback modes to support at-speed testing.
The device also has an IEEE P802.3ae D4.0 standard-compliant MDIO management bus to control the programmable features such as BIST, loopback modes and de-emphasis.
In addition, the IEEE1149.1 JTAG-compliant scan features give the chip manufacturing testability.
The SCAN50C400 is offered in a thermally enhanced 440-pin BGA package.
National reckons it leads the networking industry in providing complete backplane solutions.
In addition to the SCAN50C400, National is developing products such as fixed and adaptive multigigabit equaliser solutions and cross-talk cancellers.
The first in the family of equalisers is a 3.125 to 6.25Gbit/s fixed equaliser designed to compensate transmission medium losses and reduce the medium-induced deterministic jitter.
The equaliser will be available for sampling in the first quarter of 2004.
Samples of the SCAN50C400 and the device's evaluation and demonstration board are available today.
Volume production begins in Q1 2004 and the product will be priced below $100 per unit in large volumes.
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