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ASIL B PMIC powers automotive camera applications

Thu, Nov 03, 2022

Providing universal power for automotive cameras, the RAA271082 is a versatile ISO-26262 compliant multi-rail power IC with a primary high voltage synchronous buck regulator, two secondary low voltage synchronous buck regulators, and a low voltage LDO regulator. The IC from Renesas offers four over-voltage and under-voltage (OV/UV) monitors, I2C communications, a configurable general purpose I/O pin and a dedicated reset output/fault indicator. To meet ASIL B metrics, the RAA271082 includes a second independent reference for OV/UV monitors, built-in self-test at power-up, independent OV/UV monitoring, and continuous CRC error checking on internal registers and I2C communications.

The integrated RAA271082 is a companion for Renesas’ automotive high-definition link (AHL) technology that enables car manufacturers to deliver high-definition video using inexpensive cables and connectors. The PMIC simplifies power supply design for automotive camera applications requiring functional safety compliance, modules that include surround view/satellite, rear view, driver monitor and e-mirrors. The RAA271082 supports the power requirements of almost any combination of image sensor, image signal processor (ISP) and encoder technology, while also supporting direct-from-battery as well as power-over coax supply.

The RAA271082’s integration and comprehensive safety features make it suitable for 16- and 32-bit automotive MCUs in a variety of applications, advised Renesas.

The RAA271082 is available today, along with the RTKA271082DE0000BU evaluation board.

Renesas Electronics combines expertise in embedded processing, analogue, power, and connectivity to deliver semiconductor solutions in the automotive, industrial, infrastructure and IoT market sectors.

http://www.renesas.com

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ADXpress redefines vehicle connectivity, says Inova Semiconductors

Thu, Nov 03, 2022

Architecture to enable data transmission in vehicles to a completely new dimension has been presented by Inova Semiconductors. The ADXpress, Automotive Data Express, transmits all raw sensor data via sensor-specific, virtual data paths with deterministic latency to one or more evaluation units. The sensors can be connected to an ADXpress node via PCI Express, Ethernet or SPI, whereby the data transfers are currently carried out electrically with 30Gbits per second or with optical media, with 4 x 24Gbits per second. The data rate is essentially only limited by the physical layer medium and the capability of the technology node.

ADXpress replaces the familiar point-to-point or point-to-repeater concepts with more integrable and flexible topologies, said Inova Semiconductors. This also opens up new possibilities in all aspects of sensor data fusion for advanced driver assistance systems (ADAS) and autonomous driving (AD). The number of displays that can be controlled and maximum resolutions will continue to increase significantly,” said Roland Neumann, CTO of Inova Semiconductor.

The ADXpress technology bundles different data paths on a serial 30Gbits per second data link (already used in APIX, the Automotive Pixel Link from Inova Semiconductors). ADXpress is a universal mass data transport system that electrically transmits any type of data – whether pixel, Ethernet or sensor data from camera, lidar and radar. This opens up new possibilities for network architecture and topologies including new approaches to the implementation of video interfaces, for example via PCI Express.

ADXpress technology is based on virtual data paths, which are realised by transmitting data cells of constant size. All cells take the same path through the network. Unlike IP (Internet Protocol), where a packet can reach its destination via a different path than previous and subsequent packets, ADXpress latency and jitter are constant on a virtual path. Virtual data paths based on data cells have the great advantage that multiplexing, repeating and duplicating can take place on the layer processing the data cells independently of the service. Particularly with multiplexing, it is possible to control or steer the bandwidth allocation and the latency of the individual data paths. The 128 virtual data paths of ADXpress only consume bandwidth when user data is being transmitted

Generic application adaptation units for burst and stream data implemented in hardware enable software-free packaging and de-packaging of continuous (radar, lidar, video) or burst-oriented data (PCI Express, Ethernet, SPI) into a uniform cell format with ADXpress. This allows burst and stream data to be combined with particularly low latency, explained Inova Semiconductors. This, in turn, enables simultaneous bundling of a large number of interfaces across multiple functional units due to the bi-directional structure of ADXpress – in any direction and with any input and output points. These features enable universal network topologies that can be adapted to any conceivable interface.

Inova Semiconductors will present the ADXpress concept at electronica 2022 in Munich (15 to 18 November) at the Inova Semiconductors stand in Hall B4-301.

https://inova-semiconductors.de/main.html

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NXP packs wireless and wired connectivity into a single OrangeBox

Wed, Oct 19, 2022

Wireless and wired connectivity within a vehicle, including V2X (vehicle to everything), secure car access, radio and Wi-Fi technologies, are integrated into a single connectivity domain controller.

The OrangeBox development platform simplifies access to integrated connectivity technologies through one software platform to reduce costs and streamline development, said NXP.

OrangeBox integrates a variety of NXP wireless technologies, from broadcast radio, Wi-Fi 6 and Bluetooth, to secure car access with Ultra-Wideband (UWB) and Bluetooth Low Energy (BLE) and 802.11p-based V2X. It is a single, security- enhanced, modular development platform that provides a unified interface between the vehicle’s gateway and its wired and wireless technologies for V2X communications.

OrangeBox unifies current and emerging external wireless interfaces, for infotainment to advanced safety features, for example, into a single, security-enhanced connectivity domain controller, which connects to the secure vehicle gateway through NXP high-speed Ethernet. It is designed to reduce effort for development teams, while optimising the movement of data across multiple communication interfaces. Importantly, it also enables consistent security protection to be applied to all data traffic entering the car and eases the deployment of V2X and cloud applications such as over-the-air (OTA) updates for software-defined vehicles.

Designed as a modular platform, OEMs and Tier 1s can use OrangeBox to adapt to regional requirements for cellular connectivity and V2X and enable in-field updates to keep up with changing technologies, said NXP.

“By consolidating automotive wireless technologies into a centralised domain controller with a high- speed connection to the vehicle gateway, we are creating a single pathway for the vehicle to seamlessly connect to the rest of the world,” said Dan Loop, vice president and general manager for automotive edge processing, NXP. “Not only can this help to reduce costs and streamline development, it addresses a critical piece of the puzzle for data-enriched vehicles that require centralised, secure connectivity,” he added.

The central processor of the OrangeBox is an i.MX 8XLite applications processor running a unified Linux-based software platform to manage the automotive wireless connectivity. There is an NXP Gbit Ethernet connection to the central vehicle gateway to allow other automotive systems to access integrated wireless connectivity.

The OrangeBox automotive development platform is expected to be available in the first half of 2023.

http://www.nxp.com

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Keysight introduces automated assessment for 5G smartphones

Wed, Oct 19, 2022

Enhancements to Keysight Technologies’ Nemo Device application test suite include automation and AI. The result enables wireless service providers and application developers to accelerate the assessment of smartphone users’ real-world interactions with native applications.

The use of mobile applications is fuelling growth in native mobile apps on smart phones to access digital content, engage on social media platforms and to participate in online games. They are gaining in popularity because they offer an optimal and customised experience compared to mobile web browsers, said Keysight Technologies.

“Service providers and mobile app developers need a reliable way to verify the real end-user experience of accessing over-the-top (OTT) applications from a smartphone connected to the cellular network,” explained Matti Passoja, head of Nemo Wireless Solutions at Keysight. The company has combined in-house software technology to create an automated app test method that uses real applications to provide accurate insights into the network performance, even under the most complex and dynamic circumstances, he added.

Keysight leveraged AI, machine learning (ML) and automation, using data captured by a native mobile app (i.e., not simulated data traffic), to create the device test app method. According to the company, this delivers a more accurate assessment of an end-user’s interaction with the same mobile app. The application test automation method enables wireless service providers to rapidly optimise 5G network performance to improve quality of experience (QoE) for smartphone users accessing OTT services and social media applications, including Facebook Messenger, Microsoft Teams, Snapchat, TikTok and Zoom.

The automated test app method is one of three complementary test methods available within Keysight’s Nemo Device Application Testing Suite. Depending on the type of the mobile application and the key performance indicators, a specific test method is used in combination with a companion Nemo field test. Nemo testing suite users receive a comprehensive, realistic and flexible 5G network performance validation and end-user QoE assessment.

Keysight’s Nemo test tools capture real measurement data in the field for real-time or post-process analysis. These test tools include Nemo Outdoor 5G NR Drive test, Nemo Backpack Pro 5G In-Building Benchmarking and Nemo Network Benchmarking.

http://www.keysight.com

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ASIL B PMIC powers automotive camera applications

ADXpress redefines vehicle connectivity, says Inova Semiconductors

NXP packs wireless and wired connectivity into a single OrangeBox

Keysight introduces automated assessment for 5G smartphones

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