Product category:
Communications ICs (Wired)
News Release from: Inphi Corp | Subject: 2514DZ
Edited by the Electronicstalk Editorial
Team on 25 January 2008
Driver accelerates modulators to 100G
First to deliver large differential output voltage and the high datarates required for next-generation 40G DQPSK and 100G optical communications applications.
Inphi has developed the industry's first 25Gbit/s differential Mach-Zehnder modulator driver The 2514DZ is the first to deliver large differential output voltage and the high datarates required for next-generation 40G differential quadrature phase shift keying (DQPSK) and 100G optical communications applications
This article was originally published on Electronicstalk on 13 Oct 2004 at 8.00am (UK)
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The 2514DZ, with a differential output voltage up to 8.0V peak-peak and datarates greater than 25Gbit/s, works seamlessly with leading differential Mach Zehnder modulators from Fujitsu and Sumitomo Osaka Cement Company (SOCC).
"The 2514DZ leverages Inphi's excellence in analogue performance, signal integrity and design innovation to deliver the best in class differential Mach-Zender modulator driver in the market", says Loi Nguyen, cofounder and Vice President of Technology for Inphi Corp.
"Design teams racing to deploy ultra-high capacity optical networks rely on Inphi's technology leadership to accelerate high performance products to market".
As the transmission line rate increases from 10 to 40Gbit/s, significant fibre impairments limit how far the signal can be transmitted before regeneration.
For standard non-return-to-zero (NRZ) transmission method, these impairments limit the transmission distance to a few kilometres.
Differential quadrature phase shift keying (DQPSK) is emerging as one of the most powerful transmission methods for 40G applications.
Unlike the NRZ transmission method that transmits 1bit of data per symbol, DQPSK encodes 2bit of data per symbol, which effectively cuts the transmission line rate in half.
Thus 40G DQPSK systems are less sensitive to fibre impairments than other transmission methods at the native 40Gbit/s line rate and can transmit 40Gbit/s data well over 1000km.
Future 100Gbit/s systems may rely on even more sophisticated coding schemes to encode 4bit of data per symbol so that 100Gbit/s data can be transmitted at a line rate of approximately 25Gbit/s.
Inphi's 2514DZ has been demonstrated to work beyond the minimum specification of 25Gbit/s and is now being used by leading module and OEM customers worldwide in the development of such a system.
The 2514DZ is now available as engineering samples.
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