SiTime debuts MEMS-based oscillators for wireless infrastructure

SiTime introduced a new precision timing platform for wireless infrastructure including radios in small cells, remote radio units (RRUs), microwave backhaul, and SATCOM equipment. 

The new SiTime Elite RF Super-TCXO is an entirely new class of MEMS-based temperature-controlled oscillators designedto withstand extreme environments in which 5G radios are deployed, while delivering the phase noise, accuracy, and resilience in a single, highly integrated device. 

SiTime said its new devices also meet the stringent performance requirements specified by the IEEE 1588v2 timing synchronization protocol.

Until now, mini-OCXOs were the primary timing reference for 5G and SATCOM radios. Mini-OCXOs provided the stability over changing temperature that was necessary to clock advanced synchronized radios. While mini-OCXOs are accurate, they are notoriously unreliable, especially in harsh environments, and they consume excessive power and board space and require additional components, such as jitter cleaners and VCXOs for generating RF-capable clocks. One Elite RF Super-TCXO replaces all these components.

“To enable new services, radios are expected to deliver 10x the bandwidth of previous generations with significantly lower latency,” said Piyush Sevalia, executive VP of marketing, SiTime. “To achieve these performance goals, next-gen radios must be deployed closer to the user, and all nodes in the network must be time-synchronized. Past radio architectures used separate timing devices for the radio and for synchronization. The SiTime Elite RF platform integrates these two clocking functions, simplifying the radio timing architecture and delivering on the promise of 5G bandwidth and coverage.”

Elite RF Super-TCXO Family Highlights

• 1 to 220 MHz any frequency output
• ±100 ppb stability over temperature
• -40 °C to +105 °C operating temperature range
• ±0.9 ppb/°C stability over temperature slope
• ±400 ppm digital control with ±0.05 ppt (parts per trillion) resolution
• 100 fs typical integrated phase jitter (19.2 MHz, 12 kHz to 20 MHz integration range)
• 0.3 ppb/day typical daily aging
• 144 mW power consumption at 1.8V
• 5.0 mm x 3.5 mm ceramic package

https://www.sitime.com/products/super-tcxos/sit5376

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SiTime's new precision oscillator sets benchmark in timing performance

SiTime introduced a new oscillator that raises the bar on timing performance in data centers and 5G infrastructure.

Highlights of the SiT5503 Super-TCXO

• 1 to 60 MHz any-frequency output
• ±5 ppb stability over operating temperature
• -40 to 95°C temperature range
• ±0.3 ppb/°C stability over temperature slope
• 2 seconds to final stability over temperature
• 0.5 ppb/day daily aging
• 110 mW power consumption at 2.5V
• 7.0 mm x 5.0 mm package

“Today’s 5G and edge network applications require precision timing solutions designed to operate reliably in demanding environments,” said Piyush Sevalia, EVP marketing, SiTime. “With the SiTime SiT5503 MEMS Super-TCXO, system designers now have a compelling solution. They can replace large, power-hungry quartz OCXOs with the SiT5503, and meet the operators’ holdover requirements, even in the presence of severe environmental stressors.”

https://www.sitime.com/

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ADVA intros high-performance optical cesium clock

ADVA introduced an industry first optical cesium atomic clock that delivers a major leap in the accuracy and stability of network timing while providing a substantially longer lifetime.

The ADVA coreSync OSA 3300-HP leverages optical-pumping techniques using laser diodes. This enables it to measure 100 times the number of atoms, making it radically more efficient compared to existing primary reference clock (PRC) technologies. Its product lifespan is 100% longer than competing high-performance magnetic cesium clocks; the OSA 3300-HP delivers optimum stability for over 10 years. What’s more, further to the launch of the OSA 3300-HP, ADVA is also announcing a dual-purpose enhancement of its OSA 3350 ePRC+. Now, as well as providing phase holdover as part of ePRTC systems, it can be utilized as a free-running frequency source with enhanced standard performance.

“What we’ve accomplished with our optical cesium atomic clock solutions is more than incremental innovation. Industrializing optical pumping techniques was widely considered to be impossible. But that’s what our team has achieved. Now, we’re taking precision timing to the next level, empowering networks with nanosecond accuracy and phenomenal stability,” commented Patrick Berthoud, time and frequency chief scientist at Oscilloquartz, ADVA. “As well as meeting new sync requirements, our OSA 3300-HP will help simplify operations with its easy-to-use GUI for intuitive configuration and operation. These devices will support advances in a host of different technology fields. Able to meet the most demanding applications in data centers, financial networks, smart grids, transportation, metrology, scientific research and more, they will also be a foundation for future innovation as we continue to expand the boundaries of possibility for accuracy and stability.”

“The launch of our coreSync OSA 3300-HP marks a key milestone in the design of atomic frequency and phase standards. After many years of extensive work in our Swiss laboratories supported by the European Space Agency, we now have a mature, state-of-the-art technology that enables a major leap in the accuracy and stability of network timing while providing a substantially longer lifetime,” said Gil Biran, GM of Oscilloquartz, ADVA. ”From 5G mobile services to mission-critical defense applications, our OSA 3300-HP will be a truly disruptive enhancement of our aPNT+™ technology. And what makes its arrival so significant is that it comes at a moment when existing synchronization solutions in fixed, wireless and cable networks are being stretched to the limit, while the threat of GNSS cyberattacks also continues to grow. Across a wide range of industries, our high-performance cesium atomic clock will meet new timing demands, create new value and open up new possibilities for PNT assurance in critical infrastructure.”

https://www.slideshare.net/ADVAOpticalNetworking/introducing-the-markets-first-high-performance-optical-cesium-clock

https://www.oscilloquartz.com

Japan's TOYO Corp to harness ADVA’s optical cesium atomic clock

Tuesday, April 12, 2022  ADVA  

TOYO Corporation has deployed ADVA's Oscilloquartz optical cesium atomic clock solution to enable R&D institutions to achieve new levels of accuracy in network synchronization. ADVA’s optical cesium atomic clock leverages advanced optical-pumping techniques. This enables the device to optimize both time delivery performance and product lifetime. ADVA says that by utilizing cesium atoms in a much more efficient way than legacy magnetic...

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Israel's Partner Communications deploys ADVA's Oscilloquartz

Partner Communications has deployed its Oscilloquartz timing technology to support 5G rollout throughout Israel to deliver the level of accuracy and availability needed for next-generation mobile services and time-sensitive low-latency applications. 

Partner Communications’ new timing infrastructure features the OSA 5440, a fully redundant, scalable, and modular multi-technology grandmaster for core deployment. Operating with the OSA 3230B ePRC cesium clock and OSA clock combiner, it provides an ePRTC system, providing high levels of time stability compliant with the ITU-T G.8272.1 standard. Onboard multi-band, multi-constellation receivers compensate for atmospheric disturbances to filter out timing errors. What’s more, centralized AI-powered GNSS assurance software identifies and protects against vulnerabilities of satellite-based timing. The solution also includes the OSA 5410 Series for continuous probing and assurance, enabling Partner Communications’ team to anticipate any issues and minimize disruption to service. The technology is remotely controlled by ADVA’s Ensemble Controller with Sync Director.

“Upgrading a major nationwide mobile network like ours required the most advanced timing technology and the support of an expert team. That’s why we selected ADVA’s Oscilloquartz synchronization solution built on a core PTP grandmaster clock with full hardware redundancy and a scalable modular design. It offers many fan-out options, including PTP over multiple 10Gbit/s interfaces, and its advanced GNSS technologies ensure highest availability even under challenging conditions,” said Yigal Giladi, VP of engineering at Partner Communications. “With our new timing infrastructure, we can deliver the best possible mobile 5G experience to our customers. Now when GNSS is compromised or otherwise unavailable, ADVA’s ePRTC solution means we can still deliver phenomenally accurate timing across our network even during very long GNSS outages.”

https://www.oscilloquartz.com

https://www.adva.com

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ADVA launches GPS-backup-as-a-service

ADVA introduced a GPS/GNSS-backup-as-a-service (GBaaS) that employs a combination of multi-layer detection, multi-source backup and fault-tolerant mitigation to render timing networks more secure. Embedded in all timing devices, ADVA’s Syncjack technology provides comprehensive and precise synchronization performance monitoring and analytics, enabling the Ensemble Sync Director network management suite to intelligently operate and prioritize multi-source timing feeds across the network. Onboard multi-band GNSS receivers boost timing accuracy and also protect against attacks like jamming and spoofing. But for those times when GNSS is either unavailable or compromised, a dispersed network of autonomous cesium atomic clocks and network backup timing feeds is always sitting on standby, ready to deliver highly accurate network timing over long periods of GNSS unavailability.

ADVA says its solution addresses new guidelines and standards for redundant positioning, navigation, and timing (PNT) architectures. 

“GBaaS is a completely new way for service providers to sell critical PNT infrastructure as a service without the burden of investment and maintenance. For the first time, they can offer their customers SLAs at a range of levels that ensure the resilient and assured timing needed across time-sensitive networks and applications,” commented Nino De Falcis, senior director of business development at Oscilloquartz, ADVA. “The flexibility and protection that GBaaS affords is bad news for any malicious actors looking to attack PNT services. Service providers can now offer their customers a guarantee: When GNSS is compromised or goes offline, ADVA’s robust network of defense-in-depth PTP timing devices will be there to provide the accuracy and backup they urgently need.”

“Threats to hamper PNT capabilities are growing, and much of the world’s critical infrastructure is still without adequate protection from GNSS vulnerabilities. All of that can change when service providers are able to offer GBaaS. It’s based on our aPNT+ platform, which leverages a suite of technologies, including multi-band GNSS receivers and AI- and ML-based management software. As well as making networks more resilient against cyberattacks, our aPNT+ platform also delivers highly accurate backup when GNSS fails,” said Gil Biran, GM of Oscilloquartz, ADVA. “Now service providers can offer ADVA’s aPNT+™ protection as a subscription-based service as part of their SLAs. This will enable many more timing networks to achieve very high levels of resilience and assurance. Across a wide range of industries, this will be the easiest and most flexible way to guarantee robust PNT services.”

https://adva.li/gbaas-slides

https://www.adva.com

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ADVA brings ultra-precise timing software to open servers

ADVA launched OSA SoftSync, a software PTP client for delivering ultra-precise and robust time for server-hosted applications. It utilizes ADVA Oscilloquartz Precision Time Protocol (PTP) technology, clock recovery algorithms, and Sync jack performance monitoring and assurance capabilities. 

ADVA said its OSA SoftSync helps network operators and enterprises to migrate to precise and resilient packet timing that can run on any Linux machine.

OSA SoftSync can utilize NIC hardware-based timestamping to achieve nanosecond level accuracy. It mitigates timing source outages or loss of quality by dynamically selecting the most accurate synchronization source based on the best master clock algorithm. Customers can purchase OSA SoftSync through a simple annual subscription model.

“A key step in the digitization of IT systems and enterprises is the transition from NTP to PTP timing. Our OSA SoftSync™ makes that possible by filling in the synchronization gap at the edge of the network. At the click of a button, it gives operators the power of highly accurate PTP timestamping,” said Gil Biran, GM of Oscilloquartz, ADVA. “An entirely new set of customers can now harness the benefits of our extensive and proven synchronization portfolio without hassle or major investment. Whether it’s 5G O-RAN or advanced data center applications, our software solution opens up new possibilities for network operators across many different fields.”

“Applications running on open servers require timing with new levels of accuracy and resilience. Today’s current raft of software clocks are simply not up to the sync challenges of new use cases. Our OSA SoftSync™ is the answer. For a low total cost of ownership, it creates an end-to-end synchronization architecture able to meet the needs of advanced time-critical services. What’s more, OSA SoftSync™ is fully interoperable with a wide range of PTP grandmasters,” commented Nir Laufer, VP of product line management at Oscilloquartz, ADVA. “From data centers to financial institutions, customers can now address industry regulations, including MiFID II and CAT NMS, and meet the demands of next-generation applications without the risk of major investment.”

https://adva.li/osa-softsync-slides

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SiTime samples Elite X Super-TCXO for precise timing at the network edge

SiTime has begun sampling its Elite X Super-TCXO, a precision timing device based on its silicon MEMS technology and designed for edge networks such as data centers, 5G front haul, connected cars and industrial IoT. 

The SiT5501 Elite X Super-TCXO includes the following features and benefits:

• ±10 ppb frequency stability
• -40°C to +105°C operating temperature. More applications require 105°C operation.
• 110 mW typical power consumption
• Small package, 7.0 mm x 5.0 mm
• ±0.5 ppb/°C dF/dT (frequency slope), resistant to thermal shock and airflow
• ±0.5 ppb daily aging

Any frequency from 1 to 60 MHz with up to 6 decimal places of accuracy

The new device fits into SiTime's portfolio of TCXOs and OCXOs: Elite X (±10-20 ppb stability), Emerald (±5 ppb), and Elite (±50-500 ppb).

"Twenty-two million autonomous vehicles on the road by 2025, the rapid adoption of 5G, and the continued growth of data centers will require a large buildout in outdoor, decentralized edge networks,” said Piyush Sevalia, executive vice president of marketing at SiTime. “These new edge devices and their precision timing heartbeat must perform reliably in the presence of extreme temperatures, thermal shock, and vibration. Here, our Elite X Super-TCXO shines by delivering 2x better stability and 30x higher reliability than quartz. Consequently, we believe that Elite X will now be the precision timing device of choice in edge equipment.”

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ADVA adapts its Oscilloquartz timing for Open Compute Time Appliance Project

ADVA launched its OSA 5400 TimeCard, enabling operators of data center network infrastructure and 5G open RAN architectures to achieve highly accurate and reliable distribution and synchronization of time. 

The new PCIe card, which is built on the OSA 5400 SyncModule, transforms an open compute server into a precise and stable PTP grandmaster, boundary clock, slave clock or NTP server. The OSA 5400 TimeCard is the market’s first solution developed to the framework of the Open Compute Project’s (OCP) Time Appliance Project (TAP) and enhanced with both PTP and NTP functions. With advanced synchronization capabilities, it solves a key challenge for network operators as they virtualize their infrastructure and replace purpose-built hardware with standard servers.

“Timing in data centers and other open compute cases like 5G open RAN is becoming increasingly crucial as a growing number of applications require new levels of performance. But the sub-microsecond synchronization needed for efficient resource sharing is something that open compute servers often cannot provide. Open compute customers need a way to inject the most advanced synchronization capabilities into their white box hardware. That’s why we’ve engineered our OSA 5400 TimeCard™. It brings our experience in network and application synchronization to open compute servers as well as open RAN equipment, enabling a whole new group of customers to benefit from our unique expertise,” said Gil Biran, general manager, Oscilloquartz, ADVA. 

https://www.adva.com/en/newsroom/press-releases/20211109-adva-timing-card-brings-precise-synchronization-to-open-compute-servers

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Cyprus Telecom Authority leverages ADVA's timing tech

The Cyprus Telecommunications Authority (Cyta) is leveraging ADVA's Oscilloquartz timing technology in a national synchronization network, addressing legacy timing applications and ensuring a smooth migration to precise packet timing for 5G.

Prior to the deployment of ADVA’s Oscilloquartz PTP grandmaster clock and GNSS receiver technology, Cyta’s timing network was based purely on frequency synchronization. It now distributes stable and accurate phase and time-of-day information, supporting the enhanced spectrum utilization needed for 5G. The solution features the OSA 5420 Series of grandmaster clocks, optimized for mobile backhaul and fronthaul in the radio access network. In the core, the OSA 5440 provides highest accuracy and availability with its dual multi-band, multi-constellation GNSS receiver and full hardware redundancy. The technology is remotely controlled by ADVA’s Ensemble Sync Director. 

“We’ve worked closely with Cyta to create a synchronization solution that fits its precise needs. Able to support both legacy and next-generation packet networking, Cyta’s new timing network is space- and power-efficient, assured by in-service PTP and GNSS monitoring and protected by hardware redundancy. Our engineers have also provided support at every stage of the process and made certain that the installation was carried out without any disruption to services,” commented Vasileios Karavasilis, commercial director, ADAPTIT S.A. “As a key distributor of ADVA’s Oscilloquartz solutions, we know all about the value of precise and reliable timing in mission-critical networks. Cyta is now prepared for mass 5G rollout with a synchronization architecture able to meet key challenges both now and in the future.”

https://www.adva.com/en/newsroom/press-releases/20210713-cyta-deploys-adva-oscilloquartz-solution-for-network-timing

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ADVA intros outdoor PTP grandmaster clock for 5G fronthaul

ADVA introduced an ultra-compact outdoor PTP grandmaster clock with multi-band GNSS receiver and integrated antenna for delivering nanosecond precision needed for 5G fronthaul and other emerging time-sensitive applications. . 

ADVA says its new OSA 5405-MB synchronization device ensures timing accuracy by eliminating the impact of ionospheric delay variation. The multi-band GNSS receiver and integrated antenna enable the OSA 5405-MB to meet PRTC-B accuracy requirements (+/-40nsec) even in challenging conditions.  By receiving GNSS signals in two frequency bands and using the differences between them to calculate and compensate for delay variation, the OSA 5405-MB eliminates inaccuracy and ensures ultra-precise synchronization whatever the space weather conditions. It can also work with up to four concurrent GNSS constellations (GPS, GALILEO, GLONASS and BEIDOU), increasing the number of observable satellites in urban canyons.

“Our multi-band, multi-constellation GNSS receiver provides an extremely cost-efficient way to achieve PRTC-B UTC-traceable network timing with the levels of accuracy needed for next-generation use cases. By adding this technology to our versatile, small-form-factor OSA 5405 Series, we’re offering a route to precision synchronization at the network access without significant investment,” said Gil Biran, general manager, Oscilloquartz, ADVA. “A ruggedized design and minimal visibility make our OSA 5405-MB easy to install in almost any outdoor location. With the power to compensate for ionospheric delay variations and provide resilience against jamming and spoofing, our compact edge solution really is the key to 5G synchronization.”

http://www.adva.com

http://www.oscilloquartz.com

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Belgium's Proximus deploys ADVA synchronization for 5G

Proximus is leveraging ADVA's Oscilloquartz timing technology to synchronize Belgium’s largest open mobile network. The deployment enables Proximus to improve speed, coverage and reliability for millions of mobile users throughout Belgium, while also preparing its network for next-generation services. The deployment includes ADVA’s core grandmaster devices, access boundary clocks and its enhanced primary reference time clock (ePRTC) solution,. ADVA’s partner is Arcadiz Telecom, a leading provider of connectivity solutions across the Benelux region.

Proximus’s new nationwide synchronization network is built on the OSA 5440, an ultra-stable timing solution optimized for deployment in core networks and the OSA 5412 family of cost-effective, mid-scale synchronization devices engineered for deployment in a wide range of locations. It’s anchored by the robust and proven OSA 3230B ePRC cesium clock installed in two central sites. This supports high levels of frequency stability compliant with the strictest ITU-T standards and, combined with the OSA 5440, ensures long-term stability of UTC time. The extended stability performance of ADVA’s ePRC provides immunity against GNSS outages – a crucial requirement for mission-critical applications that should not rely on satellite-based timing alone.

“For major mobile network operators like Proximus, our PTP grandmaster and boundary clocks and our ePRTC solution are the perfect tools. They enhance overall performance and deliver the precision timing necessary for 5G use cases. Our technology also enables other services such as broadcast networks to migrate to IP-based timing,” commented Jörg Urban, senior director, business development, Oscilloquartz, ADVA. “The OSA 5412 Series and OSA 5440 support a smooth and cost-effective migration to next-generation phase and frequency synchronization. And with our ePRTC solution providing robust backup for GNSS, Proximus’ mobile customers can be sure of high-quality, uninterrupted services with no loss of performance.”

http://www.adva.com

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SiTime intros low-power MEMS oscillator for consumer devices

SiTime introduced a low-power, temperature-compensated silicon MEMS oscillator (TCXO) designed for for connected consumer and IoT devices such as Internet-connected audio-video, over-the-top streaming devices, industrial smart meters, and other devices that use low power wireless connectivity. 

Features of the SiT5008 Temperature-Compensated MEMS Oscillator

• Any frequency between 10 MHz and 60 MHz accurate to 6 decimals
• ±2 ppm to ±10 ppm frequency stability
• Operating temperature from -40 to +85°C
• Low power consumption of 3.5 mA typical at 1.8 V
• Standby mode for longer battery life
• LVCMOS output
• Industry-standard 2.5 x 2.0 mm x mm package, 100% pin-compatible with quartz devices
• RoHS and REACH compliant, Pb-free, Halogen-free, and Antimony-free

“The development of our SiT5008 is a great example of our rapid release strategy, where we develop up to 15 product derivatives from a single base platform and bring them to market quickly,” said Piyush Sevalia, executive vice president of marketing of SiTime. “Each derivative has customized features and solves unique timing problems for customers. In this case, we improved the frequency stability by 10 times by optimizing our algorithms and delivered the product in just two months. This accelerated development was possible because of our systems knowledge and continued investment in automation.”

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ADVA launches edge and access clocks for 5G

ADVA launched its latest Oscilloquartz edge and access network synchronization devices with enhanced capabilities for next-generation applications such as 5G. 

The new OSA 5412 and 5422 offer precise phase, frequency and time-of-day synchronization and can be used for time-as-a-service applications. 

The OSA 5412 is a highly flexible access network synchronization solution that offers compact and cost-effective timing distribution and assurance. The OSA 5422 is engineered for the most extreme conditions. It meets stringent frequency and phase synchronization requirements, delivers the best holdover performance of any edge device on the market, and supports multiple legacy interfaces such BITS and IRIG. Both solutions address new ITU-T specifications, including for class A and B PRTCs, ePRTCs with strict holdover requirements, and the newly improved class C and D boundary clocks. They also feature onboard multi-band, multi-constellation GNSS receivers that overcome ionospheric delay variation far more cost-efficiently than rival solutions using high-end rubidium oscillators. The OSA 5412 and 5422 support multiple PTP profiles, NTP and SyncE with the highest number of 1/10GbE ports on the market. What’s more, both devices are engineered with optional OLED display and with hot-swappable modules and power supplies to be easily upgraded in the field.

“Our latest solutions build on the great success we’ve had with our access synchronization product line. Now operators can harness the power of multi-band GNSS receivers to deliver highly accurate, UTC-traceable timing at the network edge. That enables the availability and precision that will be essential for tomorrow’s services,” said Nir Laufer, senior director, product line management, Oscilloquartz, ADVA. “By extending the feature set of our edge technology, we’re empowering CSPs to smoothly transition to the reliability and accuracy required for 5G and, at the same time, enabling our unique innovation to be used across a wide range of verticals. With support for 10Gbit/s and 1Gbit/s interfaces as well as hardware timestamping, our access timing products are the ultimate in future-proof, space-efficient synchronization.”

“Access grandmaster clocks need to meet stricter demands for accuracy and reliability than ever before, and many industries have their own specific set of stringent timing requirements. That’s why we’ve evolved our portfolio of edge and access network synchronization solutions for the specific challenges of the 5G era,” commented Gil Biran, general manager, Oscilloquartz, ADVA. 

https://www.adva.com/en/newsroom/press-releases/20201215-adva-launches-new-generation-of-edge-and-access-clocks-for-5g-network-timing

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ADVA delivers timing over PTP-optimized optical transport channels

ADVA introduced a mechanism that uses PTP-optimized optical transport to provide accurate synchronization from the core of the network all the way to the edge for 5G, smart grid and other time-sensitive applications. 

ADVA said its TrueTime technology offers new levels of robust and precise synchronization by using a bidirectional channel to deliver SyncE and PTP traffic. Accuracy is ensured by PRTC/ePRTC core clocks featuring OSA 5430/40 in combination with OSA 3230/3350 cesium atomic clocks. Closely-spaced, out-of-band wavelengths help TrueTime tackle asymmetric delay and leave all other channels available for customer traffic. Every element of the TrueTime solution is transparently controlled by ADVA’s Ensemble Controller and Ensemble Sync Director management system, featuring Syncjack monitoring technology. 

“Our TrueTime solution addresses some of the most urgent challenges for operators of critical infrastructure. It enables highly accurate synchronization throughout the transport network and offers a future-proof way to tackle the risk of reliance on satellite-based timing. From governments concerned with the growing risk of blocked GNSS signals to mobile network operators rolling out next-generation services, our TrueTime™ technology will prove invaluable,” said Henning Hinderthür, VP, product line management, ADVA. “TrueTime combines our PTP-optimized FSP 3000 optical transport with our ultra-precise Oscilloquartz technology, including PTP grandmasters with ePRTC capabilities in the core and boundary clock class D technology in metro locations. This even reduces cost and complexity by eliminating the need for unnecessary equipment, enabling operators to streamline their timing infrastructure.”

http://www.adva.com

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SiTime builds MEMS Clock-System-on-a-Chip

SiTime is entering the $1 billion per year silicon clocks market with the introduction of a Clock-System-on-a-Chip powered by its third generation MEMS resonator technology.

The new SiTime "Cascade" family of MEMS clock ICs is targeted at 5G, wireline telecom and data center equipment. The first product, the SiT9514x, consists of clock generators, jitter cleaners, and network synchronizers that deliver multiple clock signals in a system. SiTime’s MEMS resonator is integrated inside the silicon package.

SiTime's MEMS devices, which have shipped over 1.5 billion units in over 200 commercial products, deliver higher performance, lower power, and better resiliency than other timing solutions.

SiTime says its Cascade clock-system-on-a-chip delivers up to 10 times higher reliability and resilience, enabling superior resiliency for 5G infrastructure. Either standalone or together with SiTime’s MEMS TCXOs and OCXOs, the SiT9514x delivers a complete timing solution for applications such as 5G RRUs, small cells, edge computers, switches, and routers.

Samling is underway and volume production is expected in Q4.

“SiTime continues to expand our focus on the communications-enterprise market for many reasons. Our MEMS technology is well suited to solve the difficult timing challenges of emerging 5G infrastructure. This represents a large growth opportunity for SiTime that is complemented by production usage for many years,” said Rajesh Vashist, CEO of SiTime. “Today, our Elite Platform™ Super-TCXOs™ and Emerald™ OCXOs have multiple design wins in this market. We are expanding our strong foothold with the introduction of the Cascade family. Not only is this a natural next step for our timing business, but it also brings us closer to the customer as we work together to define their clock tree. In fact, Cascade devices offer a complete clock-system-on-a-chip, which allows our customers to simplify their designs and reduce time to market. As the only provider of MEMS resonators, oscillators, and clock ICs, and delivering system-level benefits to customers, SiTime continues to transform the $8 billion timing market.”

https://www.sitime.com/company/news/press-release/sitime-enables-5g-vision-zero-downtime-10-times-higher-reliability

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ADVA brings its Oscilloquartz synchronization to power utility networks

ADVA has upgraded its entire range of Oscilloquartz grandmaster clocks to meet the latest PTP profiles for time, frequency and phase synchronization in power utility networks. This includes the OSA 5401 small form-factor pluggable, the OSA 5405 for indoor and outdoor substation deployments, the OSA 5420 Series, and the highly scalable OSA 5430 and 5440 with 10Gbit/s interfaces and fully redundant hardware.

ADVA said the enhanced technology will empower electricity providers to evolve their infrastructure into smart grids based on Precision Time Protocol (PTP) power profiles, while at the same time supporting all legacy timing signals. The technologies enable an easy migration to an Ethernet-based timing network with support for PTP, Network Time Protocol (NTP) and SyncE, as well as IRIG-B, PPS and BITS legacy interfaces. PTP-based backup combined with multi-band GNSS receivers and advanced monitoring capabilities ensure that the upgraded solutions provide highly reliable delivery of precise timing information even during long GNSS outages.

“Our upgraded technology makes it simple to modernize utility infrastructure. Now, power network operators can achieve the accurate and stable synchronization needed to develop smart grid power networks built on packet-based solutions, while also maintaining legacy timing,” said Gil Biran, general manager, Oscilloquartz, ADVA. “Our technology provides a clear and cost-efficient path to robust and future-proof utility network synchronization. Its PTP timing delivery complements and replaces legacy protocols, enabling the accurate and resilient timing needed for emerging intelligent applications. Along with our multi-constellation GNSS receivers, PTP backup is also essential for protecting critical power networks. This ensures efficient operations and the best protection from malicious attacks.”

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Türk Telekom deploys ADVA's Oscilloquartz network timing

Türk Telekom has deployed ADVA's Oscilloquartz network timing technology, bringing accurate, robust frequency synchronization to its national transport network.

The compact and flexible OSA 3230B Series cesium clocks enable high levels of frequency stability across Türk Telekom’s timing and sync network and their extended holdover performance protects against GNSS outages. The solution was implemented by ADVA and Türk Telekom’s partner Netaş, which will also provide continuous maintenance and support.

“The ADVA OSA 3230B Series maximizes the synchronization performance and continuity of our transmission network. It empowers us to optimize availability and deliver even more value to our customers,” said Yusuf Kıraç, CTO, Türk Telekom. “Accurate frequency and stable timing have become essential. Our residential and mobile customers will be demanding more access to streaming and gaming applications and enterprises across Turkey and will be looking to leverage long-distance collaborative tools. That will require precise and stable frequency and timing information at all times. With the OSA 3230B Series delivering vital immunity against loss of satellite signal, we can meet strict accuracy and stability needs.”

“With intentional GNSS impairments such as spoofing and jamming on the increase, as well as the threat of unintentional disturbances, it’s vital for decision-makers of mission-critical infrastructure to mitigate against GNSS vulnerabilities. Our OSA 3230B Series provides Türk Telekom with a primary reference clock that enables it to operate a highly accurate and stable time and frequency sync network resistant to GNSS outages,” commented Jörg Urban, senior director, business development, Oscilloquartz, ADVA. “Together with our business partner Netaş, we’ve worked closely to achieve true synergy with Türk Telekom. Our teams share a drive to continuously meet and exceed customer expectations. With the support of our engineers and our comprehensive technology portfolio, we’ll be able to meet their frequency and timing requirements for many years to come.”

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ADVA upgrades its Oscilloquartz timing technology

ADVA launched a major new software upgrade and introduced additional hardware cards for its high-capacity core Oscilloquartz synchronization solutions, the OSA 5430 and 5440, to help mobile network operators (MNOs) meet stringent 5G sync requirements while supporting all existing mobile technologies.

ADVA said the enhancements to the OSA 5420 edge device and the OSA 5430 and 5440 core solutions enable a seamless transition to ePRTC and emerging PRTC-B specifications while supporting legacy interfaces for frequency synchronization. In addition, transparent and boundary clocks with tighter specifications assure precise timing delivery to base stations.

The new solutions, as well as the OSA 5420 Series, feature firmware that supports the ITU-T’s newly specified boundary clocks, class C and D. With their enhanced timestamping capabilities, the devices distribute time with accuracy better than 5 nanoseconds. The new line cards enable operators to achieve precise synchronization of legacy network architectures based on PRCs, SSUs, composite clocks and NTP. The OSA 5430 and 5440 also support highly accurate multi-band, multi-constellation GNSS receivers, engineered to overcome inaccuracy caused by ionospheric delay variation.

“These new features give communication service providers exactly what they need. Now there’s a truly risk-free route to the new breed of mobile services. With our technology, network operators can keep their legacy services up and running while cost-effectively achieving the extremely stringent timing requirements of 5G,” said Gil Biran, general manager, Oscilloquartz, ADVA. “MNOs rely on their existing applications and we don’t expect them to be phased out any time soon. Yet it’s also important to stay ahead of the curve and ensure that 5G connectivity is ready to go. That’s why we’ve enhanced our modular devices to both protect and future-proof legacy synchronization architectures. With our technology, it’s easy to maintain existing revenue streams while preparing to meet the strict new ePRTC/PRTC-B specifications needed to support tomorrow’s phase and time synchronization.”

https://adva.li/5g-sync-solution-brief

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Microchip updates its Timing Grandmaster with 5G phase protection

Microchip Technology released software version 2.1 for its TimeProviderÒ 4100 precision timing grandmaster.

TimeProvider 4100 is a 1588 grandmaster including support for the latest ITU-T G.8275.1 and G.8275.2 1588 phase profiles, complemented by extensive port fan-out for PTP, Network Time Protocol (NTP), SyncE, and E1/T1.

Software release 2.1 builds on earlier versions by adding key software enhancements providing a virtual Primary Reference Time Clock (vPRTC). Virtual PRTC provides the ability to design a redundant precise time distribution architecture for phase protection over an optical network.

The following are key features of the new vPRTC functionality:

• Leverages the existing optical network, avoiding high-cost dark fiber expenses
• Uses a dedicated lambda to transport time precisely and securely
• Provides a high-performance, redundant source of time through enhanced PRTC (ITU-T G.8272.1)
• Allows bidirectional, precise time flows (east and west)
• Chains together high-precision, multi-domain, high-performance boundary clocks that meet today's standards (T-BC Class D, as defined by ITU-T G.8273.2)

In addition, Release 2.1 introduces Network Time Protocol daemon (NTPd) with Message Digest (MD5) security algorithm. TimeProvider4100 2.1 meets PRTC-B performance standards (per ITU-T G.8272) and supports 1G and 10G, NTP and PTP in a single form-factor system. TimeProvider 4100 2.1 is available now for both new and already deployed systems.

https://www.microsemi.com/product-directory/carrier-grade-ntp-ptp-ieee-1588-grand-masters/4422-timeprovider-4100

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Poland's PLAY deploys ADVA's timing solution for 5G-ready network

PLAY, the leading mobile phone network in Poland with over 15 million subscribers, has deployed ADVA's Oscilloquartz timing solution to provide LTE Advanced services throughout Poland and prepare its network for 5G.

The PTP grandmaster with dual integrated GNSS antenna enables Play delivers resilient and accurate Precision Time Protocol (PTP) frequency and phase synchronization. PLAY is migrating its radio access network from GNSS RF antennas and coax cables to standard copper and fiber Ethernet cabling. ADVA’s long-term partner NAVI also played a key role in the project.

“This deployment is about taking our RAN infrastructure to the next level. ADVA’s versatile and compact devices are easy to install in a wide range of outdoor locations. And, with low-touch provisioning and power over Ethernet, installation is even simpler and more cost-effective,” said Michał Ziółkowski, CTO, Play. “This solution delivers the extremely precise timing required for next-generation connectivity. With the OSA 5405 ensuring accurate and robust phase synchronization, we can offer unique LTE Advanced services and prepare for the 5G future.”

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