Wafer level automotive camera module boasts lowest power consumption

For driver monitoring systems in vehicles, OmniVision offers what is claimed to be the first automotive wafer level camera module. The reflowable OVM9284 CameraCubeChip is a 1Mpixel module which measures 6.5 x 6.5mm. It is claimed to provide maximum flexibility regarding placement within the cabin while remaining hidden from view. It also has, says OmniVision, the lowest power consumption among automotive camera modules; over 50 per cent lower than the nearest competitor.

The OVM9284 is built on OmniVision’s OmniPixel 3-GS global-shutter pixel architecture, which provides best quantum efficiency at the 940nm wavelength for high quality driver images in near or total darkness. The integrated OmniVision image sensor has a three micron pixel and a ¼ inch optical format, along with

1280 x 800 resolution.

Driver monitoring systems (DMS) is expected to be the next growth area for ADAS cameras to address driver distraction.

“Most existing DMS cameras use glass lenses, which are large and difficult to hide from drivers to avoid distraction, and are too expensive for most car models,” said Aaron Chiang, marketing director at OmniVision. “Our OVM9284 CameraCubeChip module is the world’s first to provide automotive designers with the small size, low power consumption and reflowable form factor of wafer-level optics,” he added.

The OVM9284’s integration of OmniVision’s image sensor, signal processor and wafer-level optics in a single compact package reduces the complexity of dealing with multiple vendors, and increases supply reliability while speeding development time. Furthermore, unlike traditional cameras, CameraCubeChip modules are reflowable. This means they can be mounted to a PCB simultaneously with other components using automated surface mount assembly equipment, which increases quality while reducing assembly costs.

OVM9284 module samples are available now, and mass production is expected in Q4 of 2020.

OmniVision Technologies develops digital imaging based on its award-winning CMOS imaging technology for consumer and commercial applications, including mobile phones, security and surveillance, automotive, tablets, notebooks, webcams and entertainment devices, medical and AR, VR, drones and robotics imaging systems.

http://www.ovt.com

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StratEdge adds ceramic packages for 5G infrastructure

RF packaging to support the demands of the 5G infrastructure has been added to the StratEdge portfolio. The packages, most often used to protect high-power laterally-diffused metal-oxide semiconductor (LDMOS), gallium arsenide (GaAs), silicon carbide (SiC), and gallium nitride (GaN) devices, match standard outlines developed to support cellular base stations. The company expects to supply run rates in excess of 100,000 packages.

“GaN-on-SiC devices are frequently used in 5G basestations, but these devices can have extremely high power densities, which generate a tremendous amount of localised heat,” said Casey Krawiec, vice president of global sales at StratEdge.  The packages use copper-molybdenum-copper (CMC) bases to dissipate this heat, increasing the power output for the device to operate at cooler temperatures to extend lifetime operation, raise reliability and increase efficiency, he continued.

“With our Leaded Laminate (LL) series of high-power amplifier packages, the device is mounted directly onto a layer of thermally-conductive copper so the heat quickly spreads away from the transistor hot spots, while the matched coefficient of thermal expansion (CTE) minimises the stress experienced by the device,” he continued.

StratEdge is develops products to meet the increasing demands for 5G equipment, as well as defence and commercial applications, including radar, communications, avionics, and customer premises equipment (CPE).

The company designs, produces and assembles high frequency, high power semiconductor packages for microwave, millimeter-wave, and high-speed digital devices. It also builds ceramic and moulded ceramic packages to support 5G infrastructure demands.

StratEdge was founded in 1992 to design, manufacture and provide assembly services for a high-frequency and high-power semiconductor packages operating from DC to 63+ GHz. StratEdge offers post-fired ceramic, low-cost moulded ceramic, and ceramic QFN packages, and specialises in packages for extremely demanding gallium arsenide (GaAs) and gallium nitride (GaN) devices. Markets served include telecomms for 5G, VSAT, broadband wireless, satellite, military, test and measurement, automotive, clean energy, and down-hole.

All packages are lead-free and most meet RoHS and WEEE standards.

StratEdge is ITAR-registered and an ISO 9001:2015 certified facility located in Santee, California, USA.

https://www.stratedge.com

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Mouser stocks vibration sensors from Analog Devices

Based on Analog Devices’ microelectromechanical system (MEMS) sensor technology, the ADcmXL1021-1 module is a sensing system that monitors for early indications of possible machine fatigue and failure. It can be used to support maintenance in industrial and transportation equipment to help reduce repair costs and maintain a high level of productivity.

The ADcmXL1021-1 vibration sensor by Analog Devices is now available from Mouser Electronics.

The single z-axis vibration monitoring subsystem is designed to simplify the development of smart sensor nodes in condition-based monitoring (CBM) systems. It incorporates a wide-bandwidth, low-noise MEMS accelerometer and an ADC, signal processing, data buffers, record storage and a user interface that easily works with most embedded processors, says Mouser. The ADcmXL1021-1’s signal processing includes high-speed data sampling (220ksamples per second), 4096 time sample record lengths, filtering, windowing, fast Fourier transform (FFT), user-configurable spectral or time statistic alarms, and error flags.

The ADcmXL1021-1 uses an ADXL1002 MEMS accelerometer with low noise density (26microg/√Hz) to support excellent resolution. The device’s wide DC bandwidth (10kHz) to enable tracking of key vibration signatures on many machine-based platforms. The ADcmXL1021-1 offers a high operating input range of ±50 g, making it suitable for vibration measurements in high-bandwidth industrial IoT (IIoT) and industry 4.0 applications such as vibration analysis systems that monitor and diagnose machine or system health, as well as safety shut off sensing.

Mouser also stocks the EVAL-ADCM-1 evaluation kit, which includes the ADcmXL1021-1 module, a breakout board, an ADcmXL interface board, a Cypress Semiconductor EZ-USB FX3 board and necessary cables. Engineers can connect the kit to a PC to access evaluation software for configuration of the module, register setup, data display, and data logging.

Mouser is an authorised distributor, focused on the rapid introduction of new products and technologies. It offers products from over 800 semiconductor and electronic component manufacturers and claims to stock the world’s widest selection of the latest semiconductors and electronic components for the newest design projects. The distributor’s website is continually updated and offers advanced search methods to help customers quickly locate inventory. It also houses data sheets, supplier-specific reference designs, application notes, technical design information, and engineering tools.

http://www.mouser.com

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Renesas adds neural network training to add AI to air quality sensor

Renesas has added embedded AI (e-AI) to its ZMOD4410 Indoor Air Quality (IAQ) sensor platform, enabling smart odour sensing for ventilation systems, bathroom monitoring and controls and air quality monitors.

The company has combined neural network-trained firmware on microcontrollers, such as the Renesas RL78, to provide higher resolution measurement results. With these new capabilities, the ZMOD4410 platform is capable of not only detecting gases in small enclosed rooms with higher accuracy and  improved part-to-part deviation, but can also distinguish between sulphur- and ethanol-based odours, Renesas explains. The upgrades are the first in a family of e-AI-based firmware from the company.

The software-configurable ZMOD platform provides greater design flexibility for smart sensing systems, through firmware upgrades in the field to enable new, application-specific capabilities such as selective measurements to detect volatile organic compounds (VOCs). The upgrades enable IAQ measurement within international guidelines, allowing customers to measure total VOCs (TVOCs) and IAQ in the low parts-per-million range (ppm). The higher accuracy and consistency provides improved estimated carbon dioxide (eCO2) levels. The ZMOD4410 AI firmware can also be implemented on any Renesas microcontroller – including RE, RA, or RX devices – or other general-purpose microcontrollers.

The programmability, stability and sensitivity in measuring VOCs makes the ZMOD4410 suitable for use in smart HVAC systems, ventilator fans, and bathroom lights and switches.

The ZMOD4410 is based on proven metal oxide (MOx) material and each sensor is electrically and chemically tested to ensure consistency from lot to lot. The devices are also highly resistant to siloxanes for reliable operation in harsh applications.

The ZMOD4410 platform with AI and performance firmware is available now.

http://www.renesas.com

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