Product category:
Analogue and Mixed Signal ICs
News Release from: National Semiconductor | Subject: DS25CP102 and DS10CP152
Edited by the Electronicstalk Editorial
Team on 21 November 2007
Crosspoint switches promise jitter
performance
The DS25CP102 and DS10CP152 work as splitters or multiplexers for high-speed signal routing and switching in OC-48 telecomms as well as SD, HD and SDI video.
National Semiconductor has added two low-power low-voltage differential signalling (LVDS) 2x2 crosspoint switches to its PowerWise energy-efficient product family The DS25CP102 delivers the industry's best jitter performance (6ps typical) at data transmission rates up to 3.125Gbit/s, while consuming only 125mW of power per channel
This article was originally published on Electronicstalk on 5 Jan 2001 at 8.00am (UK)
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The lower-speed (1.5Gbit/s) DS10CP152 addresses short-haul applications that do not require signal conditioning.
It delivers excellent jitter performance (9ps typical), with very low power consumption of 57mW per channel.
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The DS25CP102 and DS10CP152 work as splitters or multiplexers for high-speed signal routing and switching in OC-48 telecomms as well as standard-definition (SD), high-definition (HD) and 3Gbit/s serial digital interface (SDI) professional video applications.
They are also used in video and imaging transport applications to select between two data streams or as a splitter to drive two monitors.
Their superior jitter and signal conditioning performance allow OEMs to use less costly cable, connectors and components.
National built these 2x2 crosspoint switches with its proprietary silicon-germanium (SiGe) BiCMOS-8 process technology, which provides the highest performance-to-power ratios for high-speed interface devices.
National's 2x2 crosspoints offer pin-selectable signal-conditioning features to reduce data-dependent jitter and eliminate the need for repeaters to extend signal transmission reach.
Their inputs have a wide common-mode voltage range that allow the crosspoints to accept low-voltage positive-emitter-coupled logic (LVPECL), current-mode logic (CML) and LVDS signal levels without using coupling capacitors.
The DS25CP102 and DS10CP152 accept signals directly from the leading 90 and 65nm FPGAs and ASICs.
They feature 8kV electrostatic discharge (ESD) protection and 100ohm termination on the LVDS input and output pins to minimise insertion losses, component count and board space.
These devices are the latest additions to National's growing family of crosspoint switches, which include the recently announced DS25CP104 and DS10CP154 LVDS 4x4 crosspoints.
Available now, the DS25CP102 (3.125Gbit/s) is supplied in a space-saving 16-pin LLP package and the lower power DS10CP152 (1.5Gbit/s) is supplied in a 16-pin narrow SOIC package.
The DS25CP102 is priced at US $5.25 and the DS10CP152 is $3.65, each in 1000-unit quantities.
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