Cadence Electronics (NASDAQ: CDNS) recently announced the expansion of its Tensilia IP product lineup to meet the growing demand for automotive sensor fusion application computing. The newly launched Cadence Tensilia Vision 331 DSP and Vision 341 DSP integrate vision, radar, LiDAR, and AI processing functions into a single DSP, suitable for multimodal, sensor based system design, and can achieve optimal energy efficiency in a smaller area. When used in conjunction with the optimized new Cadence Tensilica Vision 4DR accelerator for 4D imaging radar applications, customers can achieve better radar performance and higher energy efficiency. Large automotive SoC suppliers have already taken the lead in experiencing the use of Vision 341 DSP for their new generation automotive SoC, which also reflects the customer's demand for such new solutions.

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"With the increasing focus on software defined cars and the popularity of driver and passenger monitoring systems, car architecture is constantly improving and developing." - Rapha, technical and market analyst at Yole Group? Da Silva said, "Nowadays, autonomous driving has become a new competitive trend. To ensure the safety performance of cars in various situations, combining radar, cameras, and LiDAR is a necessary path. Nowadays, a car is equipped with more than 40 sensors, and this number will continue to grow. Providing such features in a highly programmable single DSP that supports a wide range of ecosystems is a great advantage.". Especially, as Yole Intelligence pointed out in the "2023 Automotive Radar" report, imaging and 4D radar are expected to achieve a compound annual growth rate of over 40% between 2023 and 2028, while the compound annual growth rate of in vehicle imaging and 4D radar may exceed 131%

The newly launched Vision 341 DSP and Vision 331 DSP combine the mature Tensilica ConnX and Vision instruction set architecture to provide highly programmable single DSP solutions for SoC providers of cars, UAVs, robots and autonomous vehicle systems, which are suitable for image sensing, millimeter wave radar, laser radar and AI processing. Other features and advantages include:

·Compared to the Vision 331 DSP, the 1024 bit Vision 341 DSP can provide twice the Multiplication and Accumulation (MAC) capability, while also providing better performance and energy efficiency than GPUs or CPUs.

·For certain 4D imaging radar workloads, in millimeter wave radar application enhancement mode, the performance of the 512 bit Vision 331 DSP can be improved by 4 times compared to the Vision 230 DSP, and the performance of the Vision 341 DSP can be improved by 6 times.

·When used in conjunction with the new DSP for 4D imaging radar applications, the performance of the Vision 4DR accelerator is three times that of using the Vision 341 DSP alone, with a performance/area advantage of six times that of using the Vision 331 DSP alone, and a performance advantage of five times that of using the Vision 331 DSP alone.

·The new Vision DSP can double the computer vision performance of computer vision filters and NMS algorithms, and improve the AI performance of quantization and depth separable convolution.

Vision 341 and Vision 331 DSPs support the Tensilia Instruction Extension (TIE) language, allowing customers to customize instruction sets. Cadence NeuroWeave? The Software Development Kit (SDK) provides neural network support for these two DSPs. In addition, Vision 341 and Vision 331 DSPs also support over 1700 OpenCV based visual library functions, SLAM libraries, point cloud libraries (PCL), radar libraries, Nature DSP libraries, OpenCL, and Halide compilers for computer vision, imaging, radar, and LiDAR applications. Both of these DSP cores have passed ASIL B hardware random fault and ASIL D system fault certification, and can be used in automotive applications.

"With the increasing popularity of visual Transformer models, automotive SoC and systems companies need to provide more outstanding performance for sensor fusion applications. They hope to find a highly flexible single DSP solution for computer vision, radar and LiDAR, as well as AI processing." David Glasco, Vice President of Research and Development, Cadence Chip Solutions Division, said, "Cadence is an excellent provider of DSP IP for vision and radar. We provide customers with a win-win experience in a single DSP product and offer optional radar acceleration functions for emerging 4D radar applications, fully meeting this growing demand."

Customer feedback

"Dreamship is an outstanding developer of the ADAS market's SoC, and we believe that the application of 4D imaging radar will become increasingly common in the near future. We will continue to use Cadence Tensiliaca Vision DSP in SoC, and we are also looking forward to the new DSP, which can provide higher performance in a smaller area while also supporting camera, radar, and 4D radar acceleration."

-Jens Bendorf, Managing Director, CEO of Dreamship

SemiDrive will continue to develop innovative SoCs for the information and entertainment segment, and to achieve this, it is crucial to choose efficient processors and flexible DSPs. We will continue to use Cadence Tensilica Vision DSPs in our products, and we are also looking forward to new DSPs that can support both visual and radar processing simultaneously. In addition, Cadence has an extensive software library framework and a powerful partner ecosystem, which helps us quickly deploy and accelerate product launch

-Eugene Wang, General Manager, Global Automotive Business at SemiDrive\

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