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MEMS barometric pressure sensors have lowest noise pressure, says TDK

Thu, Apr 15, 2021

Claimed to achieve the industry’s lowest pressure noise of 0.4 Pa RMS and attain the industry’s lowest power consumption of 1.3 microA, the InvenSense ICP-10125 is the latest addition to the SmartPressure family of TDK’s MEMS barometric pressure sensors.

The ICP-10125 also ensures temperature stability with a temperature coefficient of ±0.5 Pa per degrees C.

The ICP-10125 combines a barometric pressure and a temperature sensor in a small 3.55 x 3.55 x 1.45mm chimney package with waterproofing gel, providing IPX8 waterproofing to 10 ATM. The uniform machined lid and chimney with groove enable easier handling at production and assembly of customer products, says TDK. The ICP-10125 can be used in fitness, smart watch, and portable devices for fitness activity monitoring, location tracking for E911 calls, and indoor/outdoor navigation (dead-reckoning, floor/elevator/step detection).

The capacitive MEMS architecture delivers lower power consumption and lower noise than competing pressure sensors technologies, says TDK. It also has low noise and low power consumption, making the ICP-10125 suitable for wearable fitness monitoring and battery powered IoT. It can measure height change as small as 85mm, less than the height of a single stair step.

Operating temperature range is -40 to +85 degrees C.

“ICP-10125 delivers high accuracy, low power, temperature stability, and waterproofing in a small package footprint targeting the wearable market,” said Uday Mudoi, director of product marketing at InvenSense, a TDK company. “It enables determination of accurate location of E911 calls, tracks changes in elevation for activity monitoring, and extends battery life of always-on motion sensing applications.”

InvenSense ICP-10125 is available now for worldwide distribution. TDK also offers a development kit (DK-10125) and evaluation platform, as well as software to support customer development. The ICP-10125 joins the ICP-10101 and ICP-10111 pressure sensor products in the SmartPressure family.

InvenSense is a TDK Group company, providing MEMS sensors for consumer electronics and industrial areas with integrated motion and sound devices. Its portfolio combines MEMS sensors, such as accelerometers, gyroscopes, compasses, and microphones with proprietary algorithms and firmware that intelligently process, synthesise, and calibrate the output of sensors, maximising performance and accuracy.

InvenSense’s motion tracking, audio and location platforms, and services can be found in mobile, wearables, smart home, industrial, automotive, and IoT products.

InvenSense is headquartered in San Jose, California and has offices worldwide.

https://invensense.tdk.com

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Nvidia enters data centre arena with Grace CPU

Thu, Apr 15, 2021

Entering the data centre CPU arena, Nvidia has unveiled Grace, a server class processor for AI and high performance computing workloads. A system using the Arm-based processor, coupled with the company’s GPUs can deliver 10x faster than systems based on Nvidia’s DGX, which run on x86 CPUs.

The CPU was unveiled at GTC2021 this week. It is designed specifically for large scale AI and HPC for applications which analyse enormous datasets, requiring fast compute performance and large, low power memory subsystems, for example, natural language processing, recommender systems and AI supercomputing.

The fourth generation NVLink interconnect technology provide 900Bbyte/s connection between Grace and Nvidia GPUs to enable x30 higher aggregate bandwidth compared to today’s leading servers, claims the company.

The LPDDR5x memory subsystem is claimed to deliver twice the bandwidth and x10 better energy efficiency compared with DDR4 memory.

“Coupled with the GPU and DPU, Grace gives us the third foundational technology for computing, and the ability to re-architect the data centre to advance AI,” said founder and CEO, Jensen Huang at the launch during the company’s virtual GTC2021.

The processor combines energy-efficient Arm CPU cores with a low power memory subsystem to target workloads which can have over one trillion parameters – or “unthinkable amounts of data” said Huang, for niche computing in AI and data science.

Today’s largest AI models include billions of parameters, a number which is doubling every two and a half months, says Nvidia. Training them requires a new CPU that can be tightly coupled with a GPU to eliminate system bottlenecks. Grace uses Arm’s data centre architecture with its IP and licensing model.

The architecture provides unified cache coherence with a single memory address space, combining system and HBM GPU memory which is claimed to simplify programmability. Grace will be supported by the company’s HPC software development kit and the full suite of Cuda and Cuda-X libraries to accelerate more than 2,000 GPU applications.

Grace is expected to be available at the beginning of 2023.

The Swiss National Supercomputing Centre (CSCS) and the US Department of Energy’s Los Alamos National Laboratory have already announced plans to use Grace-powered supercomputers built by Hewlett Packard Enterprise. They are expected to be online in 2023. Los Alamos’director, Thom Mason, said the Grace CPU will be used to “deliver advanced scientific research using high-fidelity 3D simulations and analytics with datasets that are larger than previously possible”.

Appropriately, the CPU is named after Grace Hopper, the US Navy rear admiral and computer programmer scientist who developed the first computer language compiler.

https://nvidianews.nvidia.com

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Multi-Gbit automotive Ethernet test drives standard compliance

Thu, Apr 15, 2021

Keysight Technology has expanded its automotive Ethernet software portfolio to address multi-Gbit standards that govern automotive Ethernet for in-vehicle networks.

Next-generation ADAS systems, for example, need camera and radar systems that deliver high resolution which requires increased data rates and high bandwidth networking. Automotive Ethernet enables faster data communication to meet these demands in today’s vehicles and tomorrow’s connected vehicles.

Keysight offers three software additions for 1G and multi-Gbit data rates that enable Tier 1, OEM, chipset vendors and other automotive suppliers, to quickly validate and debug automotive Ethernet devices. Benefits include faster time-to-market and achieving IEEE and OPEN Alliance compliance but the higher speeds can result in data loss, interference and greater risk of missed or incorrect packets of information.

The automotive Ethernet transmit and channel test software solution for IEEE 802.3ch 2.5, 5.0 or 10Gbits per second quickly test, debug and characterise complex multi-Gbit automotive Ethernet designs.

The automotive Ethernet solutions from Keysight provide the hardware, software, cables and accessories needed for compliance testing. Based on functional and multi-purpose hardware with repeatable measurement results from Infiniium UXR-Series Real-Time and MXR-Series real time oscilloscope families, as well as E5080B ENA vector network analyser (VNA), PXI VNAs or Streamline USB VNAs for design verification and validation.

The automotive Ethernet software offers greater confidence with a device that is compliant to six standards for transmitters, two for receivers and six for link segments.

Keysight includes all relevant hardware, software and accessories into one model number, saving time and money with only one compliance application to buy and use.

The software also allows designers to create a test plan and automatically set up the instrumentation for each measurement, applying the limit lines.

Other benefits are automated reporting in a comprehensive HTML or PDF format with margin analysis, automated set ups to ensure result repeatability and enable teams to run tests without becoming experts in the required procedures.

Keysight also says the results are accurate and repeatable with its instrumentation and specific automotive Ethernet fixtures and adapter boards. Finally, the software enables protocol decoding for 1000BASE-T1 PHYs that quickly troubleshoots automotive Ethernet protocol problems back to its timing or signal integrity root cause.

http://www.keysight.com

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Demo kit enables NFC reader functionality on Renesas Synergy platforms

Wed, Apr 14, 2021

Fabless semiconductor company, Panthronics, has developed an extension of the evaluation kit for its PTX100R NFC Reader IC which will accelerate development of NFC applications on the Renesas Synergy family of 32-bit microcontrollers.

Panthronics developed an IoT NFC reader application to run on the Renesas Synergy TB-S3A1 development board for the Synergy S3A1 microcontrollers which are based on a 48MHz Arm Cortex-M4 core. NFC physical and protocol layer operations are performed on a Panthronics PTX100R Evalboard, which connects to the TB-S3A1 board via its Pmod header. The application provides full NFC reader functionality conforming to the standard ISO 14443A/B/F/V specifications.

The PTX100R Evalboard and IoT NFC Reader application are integrated into the Synergy software package from Renesas and its e2 studio integrated development environment (IDE).

Commenting on the introduction, Mohammed Dogar, senior director of global business development at Renesas, said: ‘Simple contactless communication is one of the key supporting technologies for the IoT, enabling important functions such as secure device authentication, device onboarding, and pairing with a gateway for Wi-Fi or other networks.

The PTX100R NFC hardware and application means that any Synergy MCU user, whether or not they are NFC experts, can introduce NFC functionality into their system design quickly and easily, he adds.

The demo kit’s Panthronics PTX100R Evalboard provides a complete hardware environment for evaluating the operation of the PTX100R reader IC. The NFC readers are designed from the ground up and offer higher sensitivity, more accurate wave-shaping, higher output power and a simpler hardware implementation than conventional NFC reader ICs, says Panthronics.

Developers of NFC-based end products such as mobile point of sale terminals and mobile phones can use the PTX100R to complete product development faster, with easier validation of conformance with standards such as EMVCo 3.0.

The PTX100R Evalboard supports full NFC functionality. It includes a 50 x 50mm detachable antenna board, with its matching circuit, which allows users to evaluate the PTX100R’s performance with their own antenna.

Developers using the PTX100R Evalboard can also take advantage of dedicated applications engineering support provided directly by Panthronics via the online PTX Support Portal. The portal provides password-protected access to a knowledge base of product data, articles and guidance for each of four types of application: point-of-sale terminals, wireless charging, IoT devices, and mobile devices. It also provides APIs, a configuration tool and a GUI with installer. Registered users of the portal can access 24/7 engineering support by issuing ticket requests.

Bernhard Gruber, director of applications at Panthronics, said: ‘Renesas and Panthronics have worked closely together to integrate the PTX100R’s functionality and firmware into the Synergy Platform development system. For developers building applications on the Synergy Platform, there is now a ready-made way to integrate NFC reader functionality, and benefit from the robust connectivity and design flexibility afforded by the PTX100R.’

Design engineers may request a Renesas Synergy IoT Reader Demo Kit or a PTX100R Evalboard via the Panthronics website.

http://www.panthronics.com/products

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MEMS barometric pressure sensors have lowest noise pressure, says TDK

Nvidia enters data centre arena with Grace CPU

Multi-Gbit automotive Ethernet test drives standard compliance

Demo kit enables NFC reader functionality on Renesas Synergy platforms

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