Monday, November 14, 2011

SiTime Advances MEMS Timing to Replace Stratum 3 Quartz Oscillators

SiTime Corporation, which specializes in silicon MEMS timing solutions, has entered the realm of high-precision Stratum 3 compliant with a new family of devices to replace quartz oscillators in telecom and networking infrastructure such as SONET and Synchronous Ethernet based core and edge routers, wireless base stations, IP timing and smart grid applications. Sampling will begin next month.




The new SiT530x family combines Stratum 3 stability with small size, low voltage operation and programmable features inherent to the company's silicon MEMS technology. For SiTime, achieving the precision required for Telcordia GR-1244 Stratum 3 frequency stability specifications is a milestone in the 5-year development of its MEMS device.


"That a MEMS device can now replace OCXOs and TCXOs is a landmark that was considered unachievable for MEMS timing technology just a few years ago," said Jean-Christophe Eloy, CEO and founder of Yole Développement. "SiTime can now join a league of elite timing suppliers that service the highest performance applications. I think we can now safely say MEMS devices offer more features, higher performance and better value than quartz, which is driving the electronics industry's adoption of Silicon MEMS timing solutions."


The SiT530x family consists of two devices – the SiT5301, which operates from 1 to 60 MHz and the SiT5302, which operates from 60 to 220 MHz. Both devices offer the following features and benefits.


  • Meets or exceeds Telcordia GR-1244 Stratum 3 frequency stability specifications for the most stringent timing applications

  • ±0.1 PPM frequency stability over commercial temperature (0 to 70°C)

  • <±0.37 PPM 24-hour holdover stability

  • ±4.6 PPM frequency stability over 20 years

  • Available in a 2520 compatible package, the industry's smallest ±100 PPB solution. This is a 60% reduction in size compared to any other Stratum 3 TCXO and 10 times smaller than an OCXO. The family is also available in 3225, 5032 and 7050 packages.

  • Widest frequency range of 1 to 220 MHz with 6 digits of accuracy that allows designers to easily program custom frequencies and develop systems with better performance and reliability

  • Unlike quartz, the SiT530x oscillators have no activity dips, which enable a more stable reference clock and superior system performance over temperature

  • Operating voltage of 2.5V to 3.3V supports all telecom and networking SOCs, ASICs, and FPGAs and eliminates level translation

  • 500 femtoseconds of typical integrated RMS phase jitter (12 kHz to 20 MHz) to meet the stringent requirements of telecom and networking applications

  • SoftEdge configurable rise/fall time control improves trace impedance matching and reduces EMI
  • Available voltage control with pull range of up to ±12.5 PPM for in-system calibration and fine-tuning over time

  • 500 Million hours MTBF (10 times better than quartz)

  • 50,000 g shock and 70 g vibration resistance (10 times better than quartz)
http://www.sitime.com

SiTime Advances MEMS Timing to Replace Stratum 3 Quartz Oscillators

SiTime Corporation, which specializes in silicon MEMS timing solutions, has entered the realm of high-precision Stratum 3 compliant with a new family of devices to replace quartz oscillators in telecom and networking infrastructure such as SONET and Synchronous Ethernet based core and edge routers, wireless base stations, IP timing and smart grid applications. Sampling will begin next month.




The new SiT530x family combines Stratum 3 stability with small size, low voltage operation and programmable features inherent to the company's silicon MEMS technology. For SiTime, achieving the precision required for Telcordia GR-1244 Stratum 3 frequency stability specifications is a milestone in the 5-year development of its MEMS device.


"That a MEMS device can now replace OCXOs and TCXOs is a landmark that was considered unachievable for MEMS timing technology just a few years ago," said Jean-Christophe Eloy, CEO and founder of Yole Développement. "SiTime can now join a league of elite timing suppliers that service the highest performance applications. I think we can now safely say MEMS devices offer more features, higher performance and better value than quartz, which is driving the electronics industry's adoption of Silicon MEMS timing solutions."


The SiT530x family consists of two devices – the SiT5301, which operates from 1 to 60 MHz and the SiT5302, which operates from 60 to 220 MHz. Both devices offer the following features and benefits.


  • Meets or exceeds Telcordia GR-1244 Stratum 3 frequency stability specifications for the most stringent timing applications

  • ±0.1 PPM frequency stability over commercial temperature (0 to 70°C)

  • <±0.37 PPM 24-hour holdover stability

  • ±4.6 PPM frequency stability over 20 years

  • Available in a 2520 compatible package, the industry's smallest ±100 PPB solution. This is a 60% reduction in size compared to any other Stratum 3 TCXO and 10 times smaller than an OCXO. The family is also available in 3225, 5032 and 7050 packages.

  • Widest frequency range of 1 to 220 MHz with 6 digits of accuracy that allows designers to easily program custom frequencies and develop systems with better performance and reliability

  • Unlike quartz, the SiT530x oscillators have no activity dips, which enable a more stable reference clock and superior system performance over temperature

  • Operating voltage of 2.5V to 3.3V supports all telecom and networking SOCs, ASICs, and FPGAs and eliminates level translation

  • 500 femtoseconds of typical integrated RMS phase jitter (12 kHz to 20 MHz) to meet the stringent requirements of telecom and networking applications

  • SoftEdge configurable rise/fall time control improves trace impedance matching and reduces EMI
  • Available voltage control with pull range of up to ±12.5 PPM for in-system calibration and fine-tuning over time

  • 500 Million hours MTBF (10 times better than quartz)

  • 50,000 g shock and 70 g vibration resistance (10 times better than quartz)
http://www.sitime.com

Quantenna First with 4x4 MIMO 802.11ac Silicon

Quantenna Communications, a start-up based in Fremont, California announced its upcoming IEEE 802.11ac chipset featuring 4x4 multiple-input multiple-output (MIMO) and digital beamforming technology.


Quantenna's new QAC2300 two-chip solution includes a new 4x4 MIMO digital baseband chip that supports the latest 802.11ac specifications, combined with Quantenna's shipping radio frequency (RF) chip, which already supports 802.11ac. The company is offering a QAC2300-RDK reference design that includes schematics, layout, and design guidelines. The design support 2 Gbps dual-band, dual-concurrent operation (5 GHz 802.11ac plus 2.4 GHz 802.11n) using PCI-e or dual RGMII interfaces.


Quantenna, which has built up momentum for its 802.11n 4X4 MIMO as an in-home, wireless video distribution solution for service providers, said its initial design is targeted at consumer retail Wi-Fi gear. While 802.11ac support greater bandwidth due to wider channels than 802.11n, the trade off is fewer channels. Some service providers may continue to choose 802.11n 4x4 MIMO over 802.11ac for this reason, however for the consumer market, the gigabit class performance is a boost. 802.11ac may also find take-up in enterprise WLAN deployments for this same reason.


"The QAC2300 for retail applications complements our existing QHS71x product line, which is optimized for service providers,�? said Dr. Sam Heidari, chief executive officer for Quantenna. “This new 802.11ac solution is an industry first that reinforces our leadership role in high-throughput wireless technology, and extends it into new retail and consumer electronics market segments."


Quantenna's existing family of "Full-11n" 5GHz chipsets uses the company's cost-optimized, third-generation 4x4 MIMO technology to deliver up to 600 Mbps of bandwidth inside the home. http://www.quantenna.comSome key attributes of 802.11ac:



  • Unlike 802.11n, 802.11ac is exclusive to 5 GHz spectrum because this band offers more non-overlapping channels and has fewer interferers.


  • 802.11ac client silicon will support a fall-back to 802.11n when 802.11ac is not available. 802.11ac base stations will support concurrent 802.11n and 802.11ac clients.


  • 802.11ac gets its performance boost by using wider channels


  • The latency of 802.11ac is improved over 802.11n


  • Beamforming was promised in 802.11n but not really implemented in practice unless the same vendor's silicon was in both the client and access point. This problem has been fixed in 802.11ac with the industry agreeing to one beamforming methodology.


  • 802.11ac will offer better support for more significantly more clients on wireless networks.


  • Performance-to-power has been improved. Faster downloads means the radios can return to low-power standby modes faster.


  • The range of 802.11ac and 802.11n are similar.

Infinera Gains Midcontinent as New Customer

Midcontinent Communications, an independent cable operator serving the Upper Midwest, has selected Infinera's DTN platform for its latest backbone network expansion in Minnesota connecting newly acquired territories.


Midcontinent delivers cable television, broadband and digital home communication services to more than 270,000 residential and business customers in North Dakota, South Dakota and Minnesota. Midcontinent first deployed Infinera's DTN Digital ROADM last year. http://www.infinera.com

France Telecom-Orange and SFR Sign FTTH Deal

France Telecom-Orange and SFR signed an agreement covering the deployment of optical fiber outside very densely-populated areas of France. The deal helps to eliminate overlap between the companies' respective fiber rollouts.


Of the 11 million households outside very dense areas that are covered by the fiber deployment plans drawn-up by France Telecom-Orange and SFR, 9.8 million are in agglomerations where both operators have redundant deployment projects. Under this agreement, SFR will serve 2.3 million of these households and France Telecom-Orange will serve 7.5 million. The companies said their agreement designates who will be responsible for deployment in each community in a way that ensures the best deployment schedule and network coverage with regards to the interests of consumers and local authorities.


In line with the conditions set-out by the French regulator ARCEP, other market players will also be able to obtain access to the infrastructure deployed by either operator, including through co-financing projects, for their own very high-speed broadband offers.


The parties also agreed to complete the rollouts within five years after deployment has started.


The companies now calculate that in total, including deployment in very densely-populated areas, fiber will reach nearly 60% of all French households by 2020, thanks to private-operator investment.
http://www.francetelecom.com http://www.sfr.com

  • In July 2011, France Telecom-Orange announced a milestone agreement with Free (Iliad Group) covering its forthcoming FTTH rollout across France. The joint financing deal covers about 60 less-dense areas in France representing 5 million homes.


    As announced earlier this year, France Telecom-Orange plans to invest EUR 2 billion by 2015 to bring fiber-optic networks to 3,600 French municipalities (communes), covering 10 million households by 2015 and 15 million households by 2020 (corresponding to 17 million homes), totaling nearly 60% of French households. The agreement with Free is the first such deal with an operator concerning fiber deployment in these areas that is due to begin in 2011 and 2012.


    France's regulatory framework for FTTH rollout outside of very dense cities was established at the start of the year. This week, France Telecom-Orange published its wholesale offer for access to the new fiber network and submitted details to ARCEP, the national regulator.



  • In December 2010, Bouygues Telecom and SFR agreed to share the costs of deploying FTTH infrastructure in dense municipalities. The companies will share the passive elements of the GPON network, but will compete at the services level. The accord is expected to cover some three million homes in 20 municipalities across France.

    SFR has previously announced a fiber line share deal with Numericable.

Radisys Enhances its Mobile Security Gateway with TTG & Wi-Fi Capabilities

Radisys has enhanced its ATCA-based SEG-100 security gateway with new Tunnel Terminating Gateway (TTG) and Interworking Wireless LAN (I-WLAN) functionality for network equipment providers.


The new functionality allows mobile operators to offload traffic in a secure fashion. Specifically, the enhanced SEG-100 offloads traffic using a secure 3GPP standards-based TTG connection. Previously, network equipment providers have created their own TTG capabilities or integrated a standalone TTG box into their environment.

An I-WLAN is a wireless data access solution that allows data traffic to flow between wireless local area networks (WLANs) and the operator's 3GPP systems. Mobile clients, such as laptops, smartphones and tablets, use the WLAN to access the Internet. Radisys' SEG-100 can allow these clients to access the Internet by providing interworking to an existing general packet radio service (GPRS) backbone.

With these enhancements, Radisys noted that its SEG-100 now supports a multitude of security services on a single blade, including LTE network domain security, firewall and an evolutionary path to supporting evolved packet data gateway (ePDG) technologies. It also offers a variety of input/output (I/O) connection options, from front-end Ethernet ports to backplane fabric switches and Rear Transition Modules (RTMs). The TTG/I-WLAN capability can also be extended to be an ePDG for emerging LTE networks. This product is currently in customer trials.

http://www.radisys.com


CommScope Develops Low Count Fiber Drop Cable

CommScope introduced low-cost, Low Count Fiber Drop cable—designed specifically for true one or two fiber drop applications in FTTx networks. The Low Count Fiber Drop cable is a small (4 mm × 2 mm) lightweight (8 lbs per 1,000 ft) cable designed for easy handling and field preparations. It also eliminates the time and cost associated with bonding and grounding. CommScope said the new cable provides cable and multi-services operators the flexibility of deploying a fiber optic cable designed specifically for the drop portion of a network.


“FTTx cables can be used in various architectural approaches to outside plant designs,�? said Doug Wells, vice president, Outside Plant Solutions, CommScope. “Some operators are using expensive fiber optic drop cables, containing up to 12 fibers that were designed to accommodate various applications that extend way beyond the true drop application. The Low Count Fiber Drop is a design uniquely focused on addressing the specific requirements in the tap to subscriber connection." http://www.commscope.com

National LambdaRail Delivers 100G to SC11 Show in Seattle

National LambdaRail (NLR) is delivering 100G connectivity for the National Oceanic and Atmospheric Administration's (NOAA) presence at SC11, the global supercomputing conference being held here this week at the Washington State Convention Center. Cisco's ASR 9000 Series router system and ONS 15454 optical transport platform power the 100G connection. Cisco supplied the networking equipment in support of NOAA's activities at SC11.


"Together with Cisco, NLR is determined to provide its clients, like NOAA and the national research community, with the data transmission capabilities they need to stay ahead of the curve in a competitive global science marketplace," said Dr. Patrick Soon-Shiong, chairman and CEO of National LambdaRail. "This demonstration underscores our firm commitment to dedicated, high performance communications support for science."


"Data intensive science is impacting many fields of study such as climate change, nuclear physics, and genomic medicine," said Surya Panditi, senior vice president and general manager, Core Technology Group. "Cisco is committed to delivering the end-to-end architecture and networking intelligence that will enable high performance computing applications and advance scientific discovery and scholarship." http://www.nlr.net

Frontier Signs with AT&T to Offer Wireless Voice and Data

Frontier Communications, which operates in 27 states, signed a 3-year with AT&T to offer Frontier customers a broad assortment of AT&T smartphones and access to its mobile broadband network. The agency agreement between Frontier and AT&T Mobility complements Frontier's robust portfolio of broadband, voice and satellite TV services.


AT&T Mobility and Frontier plan to trial the offering in the first half of 2012; once operational processes are complete the offering will be available throughout Frontier's nationwide footprint. Frontier customers who subscribe to AT&T's wireless services will gain access to AT&T's more than 29,000 Wi-Fi Hot Spots in the United States. http://www.frontier.com

Canadian Regulator Approves Capacity-based Billing for Wholesale Access

The Canadian Radio-television and Telecommunications Commission (CRTC) approved a new capacity-based billing model for large telephone and cable companies to charge independent Internet service providers (ISPs) for the wholesale use of their networks.


Under the CRTC's new capacity-based approach, large telephone and cable companies will sell wholesale bandwidth to independent ISPs on a monthly basis. Independent ISPs will have to determine in advance the amount they need to serve their retail customers and then manage network capacity until they are able to purchase more. Alternatively, large companies can continue to charge independent ISPs a flat monthly fee for wholesale access, regardless of how much bandwidth their customers use. Both billing options give independent ISPs the ability to design service plans and charge their own customers as they see fit.


"Our aim is to foster a marketplace in which Canadians have as many options as possible for their Internet services,�? said Konrad von Finckenstein, Q.C., Chairman of the CRTC. “Independent ISPs provide an alternative to the large telephone and cable companies, but must rely on these same companies for certain elements of their network. Under the capacity-based model announced today, they will have to forecast their usage and plan accordingly." http://www.crtc.gc.ca/eng/com100/2011/r111115.htm

NexGen Storage Raises $10 Million

NexGen Storage, a start-up based on Louisville, Colorado, raised $10 million in new funding for its solid-state, shared storage solutions.


NexGen Storage said it solves the two key issues that have limited the adoption of virtualization -- the long-standing drawback of performance uncertainty associated with shared storage and the high operational cost of disk sprawl. The design offers up to 76 times higher storage density than a typical disk drive deployment resulting in up to 90 percent storage operating expense savings.


New investor Next World Capital led the financing and joined existing investors, Grotech Ventures and Access Venture Partners. NexGen Storage emerged from stealth on November 8, 2011, and simultaneously announced the general availability of its flagship product, the NexGen n5 Storage System.
http://www.nexgenstorage.com

Huawei Acquires Symantec Stake in Joint Venture

Huawei Technologies acquire Symantec's 49 percent stake in Huawei Symantec Technologies Co., Ltd. for US$530 million. The deal makes Huawei the sole owner.


Huawei Symantec is a Hong Kong-based joint venture established by Huawei and Symantec in 2008.The company provides security, storage and systems management solutions. It holds more than 900 patents in important network security and storage technologies.


"I am thrilled that Huawei Symantec will become a key pillar of Huawei's ICT solutions. The integration of Huawei Symantec's innovative security and storage technology with Huawei's enterprise products will reinforce Huawei's leading position in cloud computing," said Guo Ping, Deputy Chairman of Huawei. "Huawei Symantec has achieved tremendous success in the past four years, having built a portfolio of products and solutions that are widely recognized by our customers and business partners. Looking ahead, Huawei will continue to increase investment in Huawei Symantec." http://www.huawei.com http://www.huaweisymantec.com

See also