Product category:
Analogue and Mixed Signal ICs
News Release from: National Semiconductor | Subject: DS38EP100 and DS80EP100
Edited by the Electronicstalk Editorial
Team on 02 August 2007
Equalisers extend reach for PCBs and
HDMI
Power-saver equalisers outperform competing passive equalisers and are more versatile and easier to use than active equalisers.
Two new power-saver equalisers from National Semiconductor outperform competing passive equalisers and are more versatile and easier to use than active equalisers The DS38EP100 power-saver equaliser can equalise 40in of FR-4 printed circuit board (PCB) at a data transmission rate of 3.125Gbit/s - twice the reach of other passive equalisers
This article was originally published on Electronicstalk on 5 Jan 2001 at 8.00am (UK)
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Compared with active equalisers, National's DS38EP100 and DS80EP100 are more versatile.
They require no power or ground routing and they accept any high-speed differential signal technology, including current-mode logic (CML), low-voltage differential signalling (LVDS) and low-voltage positive emitter coupled logic (LVPECL).
Additionally, they are bidirectional, offering the same equalisation gain in either direction.
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The DS38EP100 and DS80EP100 are well suited for many applications such as routers, storage subsystems and wireless basestations.
They are supplied in a tiny 6-pin LLP package for use in space- and layout-constrained systems, such as cables or connectors in medical, security and industrial imaging systems.
The DS38EP100 operates from 1 to 5Gbit/s, and the DS80EP100 operates from 5 to 10Gbit/s.
They address a variety of systems using high-definition multimedia interface (HDMI) or digital visual interface (DVI) interface standards, as well as systems using a PCI Express or XAUI interface.
With no power or ground required, system designers can easily place these power-saver equalisers in cables, connectors or backplanes, and they can add them to a board with a minimum of layout changes.
They can also cascade these devices with an active equaliser or limiting amplifier to further extend FR-4 and cable transmission links.
In addition to doubling the reach of FR-4, the DS38EP100 can equalise up to 5m of cost-effective 28AWG HDMI cable at a datarate of 3.4Gbit/s.
It features 7dB of maximum boost and its input and output impedance is 100ohm.
The DS38EP100 supports all data coding techniques such as 8b/10b and scrambled signals.
The DS80EP100 offers similar technical features and at 10Gbit/s can equalise 20in of FR-4 and 5m of 26AWG cable.
Both equalisers operate over the full -40 to +85C temperature range.
The DS38EP100 and DS80EP100 are the latest additions to National's growing family of signal-conditioning equalisers, which include the DS16EV5110 video cable equaliser, DS25BR110 LVDS equaliser, DS40MB200 dual mux-buffer, and DS15BA101 and DS15EA101 cable extender chipset.
Available now, the DS38EP100 is priced at US $1.30 each and the DS80EP100 is $1.65 each, both in 1000-unit quantities.
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