news digest ♦ Telecoms 2017.
Infinera reports strong traction for the DTN-X around the world with purchase commitments from 27 customers through the first quarter 2013 in North America, Europe and Asia Pacific, including BICS, CenturyLink, Cable&Wireless Worldwide, KDDI, Telefonica International Wholesale Services, TeliaSonera International Carrier and DANTE for the GÉANT pan- European Research Network.
The Infinera DTN-X platform is designed for global network operators facing increasing bandwidth demands driven by video, high speed data and cloud-based services. For these operators the DTN-X provides a simple, scalable, and efficient solution that integrates optical transport network (OTN) switching capacity with market-leading multi-Terabit transport capacity.
The DTN-X enables network operators to efficiently deploy the world’s first and only commercially available 500G long-haul super-channels. Long-haul super- channels enable operators to scale transport capacity without scaling operational complexity thereby lowering total cost of ownership for multi-Terabit transport networks.
Freescale launches GaAs LNA for optimal receiver performance
The low noise broadband gallium arsenide based amplifier is suited for small cell and macrocell transceivers and applications requiring high linearity and high RF output power
Freescale Semiconductor has introduced a new enhancement-mode pHEMT low noise amplifier (LNA) based on GaAs process technology.
It is designed to optimise receiver performance for a broad array of wireless systems operating between 700 and 1400 MHz. Typical applications include small cell and macrocell transceivers, as well as a range of applications requiring extremely low noise figures, high linearity, and high RF output power.
The noise figure of the MML09231H is 0.36 dB at 900 MHz, making it a top-performing LNA in its frequency range, while maintaining one of the lowest noise figures of any small signal device in the industry.
This performance level is ideal for receiver designers, because it can boost product sensitivity to very low-level signals.
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www.compoundsemiconductor.net June 2013 BPDV3120R The coaxial single-ended output can detect up to 64
What’s more, the MML09231H has an output third order intercept point (OIP3) of 37.4 dBm at 900 MHz delivering the high linearity required by today’s wireless systems.
The new Freescale LNA can tolerate a maximum input signal of +20 dBm, has an RF output peak power of +24.5 dBm (280 mW), high reverse isolation of -21 dB, small-signal gain of 17.2 dB (externally adjustable), and current consumption of only 55 mA from a single 5 Vdc supply.
Its features include an integrated power-down pin, active bias control for maintaining constant current, unconditional stability over temperature, and low external component count.
The MML09231H is now in full production. A reference test fixture is available for quick evaluation. For sampling and pricing information, please contact Freescale Semiconductor, a local Freescale sales office, or an authorised distributor.
u²t unveils 1550nm photodector
The III-V based detector supports systems for next generation networks using 400 Gbit/s or 1 Tbit/s coherent detection-based optical transmission
u²t Photonics AG, a provider of optoelectronic components, says it has developed the world’s fastest balanced photodetector offering a 3dB bandwidth of 70 GHz.
The BPDV3120R complements u²t’s product portfolio of ultra high speed photodetectors and receivers.
The optical frontend consisting of a monolithic balanced photodetector chip with on-chip biasing has been successfully tested in a system environment and will be used in Test & Measurement (T&M) equipment, such as optical modulation analysers, for the test of next generation coherent network components and modules.
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