800G test from Keysight Technologies validates next-gen data centres

Keysight Technologies has released 800G test solutions for validating electrical and optical interfaces to speed development of next-generation data centre technologies, including what is believed to be the first 100Gbits per second transmitter and receiver pre-conformance test.

Service providers and data centre operators are seeking 800G technology to meet a growing demand in network capacity at the desired cost and power consumption targets. This is primarily driven by data-hungry applications such as video conferencing, streaming and digital entertainment, which are delivered via wireless technologies such as 4G, 5G and Wi-Fi.

Electrical and optical analysis enables an 800G ecosystem, consisting of optical components, chipset, switch and semiconductor IC vendors, as well as system integrators, to speed design, development, test and validation across the entire design cycle.

Dr. Joachim Peerlings, vice president of network and data centre solutions at Keysight Technologies, said: “Access to a portfolio of 800G test solutions across physical and protocol layers, from simulation to design, validation, conformance and manufacturing, enables our customers to verify interoperability and simplify testing across the workflow using common, uniform interfaces and software automation.”

Keysight Technologies’ 800G test solutions include a 100Gbits per second electrical conformance test. It is believed to be first pre-conformance test solution for validating both transmitter and receiver electrical signalling input interfaces according to the 100Gb/s standard currently under development by the Institute of Electrical and Electronics Engineers (IEEE) and the Optical Internetworking Forum (OIF).

It also includes Keysight’s Infiniium UXR-Series real-time oscilloscope or digital communication analyser (DCA), 64Gbaud high performance bit error rate tester (BERT) and pre-conformance test cases for simplified 100, 200, 400 and 800Gbits per second electrical input interface testing, resulting in accurate and repeatable test results.

There is pre-silicon design verification, combining Keysight’s IxVerify software, which generates network traffic, with the Synopsys ZeBu Server 4 emulation system to accelerate pre-silicon design verification of SoCs and 800G Ethernet designs.

This delivers consistent test methodologies, configurations and scripts to accelerate testing from pre-silicon to post-silicon device validation.

A 200Gbits per second option is designed for 800G research and pathfinding. It combines an arbitrary waveform generator (AWG) and an Infiniium UXR-Series real-time oscilloscope to characterise the digital interface including error detection up to 224Gbits per second.

To extend testing into the optical domain, developers can use Keysight’s 60GHz optical-to-electrical (O/E) converter.

The physical layer test system (PLTS) establishes signal integrity measurements and performs data post processing of high speed interconnects, such as cables, backplanes, PCBs and connectors.

It supports de-embedding techniques on a common platform, enabling users to optimise performance margins in 800G channel designs.

According to Keysight, the components are designed to allow users to fully explore design margins, while addressing design and conformance validation challenges in an 800G transceiver market, which is expected to reach $2.5 billion by 2029 according analyst, CIR.

http://www.keysight.com

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MEMS accelerometer reduces space needed in challenging environments

A miniature, one-axis, closed loop MEMS accelerometer from TDK has a 24-bit digital SPI and SMD package. The Tronic AXO315 is claimed to match the performance of quartz sensors and outperforms commercial MEMS sensors.

The force-rebalance accelerometer delivers a one year composite bias repeatability of 1mg and composite scale factor repeatability of 600 ppm under severe temperature and vibration conditions common in industrial, land, railway, naval and construction applications. TDK says these characteristics enable significant reduction in size, weight and cost of materials for industrial motion control units, inertial measurement units (IMU) and inertial navigation systems (INS).

The AXO315 is a ±14g range, in-plane linear accelerometer. It has been designed and developed to provide high precision and reliability in challenging environments. It achieves a 1 mg composite bias repeatability over one year at temperatures ranging from -55 to +105 degrees C, and 4 g vibrations with vibration rejection. Performance is augmented by Allan variance characteristics and bias instability of 4 micro g, a velocity random walk of 0.006 m/s/√h, and very low noise of 15 micro g/√Hz, for high resolution and low error.

The AXO315’s performance is equivalent to the incumbent analogue quartz accelerometers and mechanical inclinometers, but at a fraction of their size, weight, and price. They also remain free from dual-use export control according to Annex 1 of Council Regulation (EC) No 428/2009. AXO315 exhibits higher performance levels than any current commercially available MEMS sensors components, says TDK. It delivers an 80 per cent gain in temperature stability compared to Tronics’ AXO215 accelerometer. The AXO315 accelerometer comes in a lightweight 1.4 g hermetic SMD J-lead ceramic package (measuring 12 x 12 x 5.0mm), enabling low-cost assembly and reliability on PCB, even in fast-changing temperature conditions.

The AXO315 can be used for applications requiring high accuracy and stability in demanding environments, such as servo inclinometers and dynamic inclinometers in industrial motion control units, IMUs and INS for GNSS-aided positioning, and navigation of manned and unmanned ground vehicles and trains.

The AXO315 accelerometers are manufactured, tested and calibrated at Tronics Microsystems’ facility in Grenoble, France.

Pre-production and customer sampling have begun. Evaluation of the sensors can also be made through an Arduino-based evaluation kit that is specifically designed to provide developers with improved testing functionalities such as output reading and recording, recalibration and digital self-tests. Full production of the sensors and availability through its network of distributors are scheduled for summer 2021.

Tronics Microsystems SA is a division of TDK’s Temperature & Pressure Sensors Business Group that manufactures custom MEMS products and standard inertial sensors. It provides custom and standard products especially to the industrial, aeronautics, security, and medical markets. Founded in 1997, Tronics is located in Crolles, near Grenoble (France) and in Dallas, Texas (United States).

http://www.tdk.com

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O-RAN radio unit is optimised for indoor 5G

Compact O-RAN radio units from Benetel are cost-effective and optimised for indoor deployment. The BNTL-RAN550 O-RAN radio unit (O-RU) delivers 100MHz of instantaneous bandwidth, with up to 250mW of output power per transmitter path.

The combination of performance parameters, small form factor and low total cost of ownership, means that the 5G radio unit is prepared for indoor deployments, for use in access points and private networks, predicts Benetel.

The BNTL-RAN550’s adaptable modular architecture complies with the latest O-RAN interface specification, supporting 7.2 split front haul network configurations. It comes equipped with two 10Gigabit Ethernet ports for front haul network interfacing, and the built-in antennae supports four transmit/four receive (4T4R) multiple input/multiple output (MIMO) operation. The initial version will support the 5G band n78 (3.3 to 3.8GHz), with additional frequencies (upper band n77 and band n79) already under development.

The BNTL-RAN550 O-RUs will be available from January. They are designed for ceiling-mount and wall-mount implementations. The CE/FCC-certified units support an operational temperature range of 0 to +45 degrees C and are powered by a 12V DC supply (or via PoE++).

The BNTL-RAN550 offers a deployment-ready O-RAN solution, says Benetel, for implementing small network trials.

Benetel is headquartered in Dublin, Ireland and its team is driving innovation in the roll-out of a small cell infrastructure. The company develops leading-edge radio solutions for 5G and 4G/LTE small cells. Benetel is committed to supporting the evolving radio access networks around the world by producing hardware and related services. The company’s radio units are available in a variety of frequency bands and output powers, to support customers to increase speed to market of the network infrastructure.

http://www.benetel.com

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Controller provides safety functions for widescreen automotive displays

Two display controllers from Socionext have enhanced security support for high resolution, wide format displays.

The SC1702 display controller meets the automotive market’s demand for high-resolution widescreen automotive displays. Socionext has added a display controller to its SC1701 series, providing low-cost, optimal safety functions for meter clusters. Both display controllers deliver scalable in-vehicle remote display systems with high levels of safety, says the company.

The use of automotive displays is rapidly expanding in instrumentation and vehicle control operations, including meters, climate controls and other dashboard indicators integrated into graphics, as well as head-up displays (HUDs) and e-mirror displays, ranging from conventional small displays to large format, wide screens with some spanning across the entire dashboard.

The SC1702 is capable of transferring data at rates of up to 12Gbits per second, using APIX 3 technology. It is equipped with a newly developed panel interface port (PIP) that supports advanced, high-resolution, wide landscape format displays, such as 8K x 1K, which cannot be supported with conventional interfaces. It is also designed to conform to the HDCP 2.3 encryption technology, making it possible to effectively use rich, 4K-resolution content for multi-displays in a vehicle.

The SC1702 can detect display abnormalities that are unobservable with current technology, advises Socionext. In addition to the conventional safety features, displays can now recognise panel link loss, inconsistencies of CRC of pixel data and other behaviours at the source drivers and gate drivers, enhancing the capabilities to meet further safety requirements.

The SC1701BH5-300 has been added to the SC1701 family, providing additional functions to existing meter systems. Safety features include multi-window signature unit, picture freeze detection, and watchdog, as well as the 2D rendering capability of Deep Color (30 bpp) built-in graphics engine, at a competitive price, says Socionext.

The SC1701BH5-300 is available in an EP-LQFP-216 package, measuring 24 x 24mm and the SC1702AK3 is available in an HS-BGA-319 package, measuring 23 x 23mm.

The join the SC1701BK3-100 and SC1701BH5-100 display controllers.

Samples of the SC1701BH5-300 are now available. Sample shipment of the SC1702AK3 will start in February 2021.

http://www.socionext.com

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