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izing C compiler. The software environment also features complete support of standard OpenCV and OpenVX libraries for fast, highlevel migration of existing imaging/vision applications with over 800 library functions. Among the key new features enabling this drastic performance increase is the wide 1024-bit memory interface with SuperGather technology for maximum performance on the complex data patterns of vision processing. With The SuperGather technology operates in parallel and supports the reads and writes of many non-contiguous address cells, improving non-uniform access algorithms such as image warping, edge tracing, non-rectilinear patch access. The DSP supports up to 4 vector ALU operations per cycle, each with up to 64-way data parallelism, up to 5 instructions issued per cycle from 128- bit wide instruction delivering increased operation parallelism, and enhanced 8-,16- and 32-bit ISA tuned for vision/ imaging applications. An optional 16-way IEEE single-precision vector floating-point processing unit delivers 32GFLOPs at 1GHz. As a real-life example, Dennis Crespo, Director of Product Marketing for the Cadence Tensilica Imaging Group mentioned a customer doing research in deep neural networking on the server side, to perform big data analysis on image data. The unnamed customer was able to move from a power-hungry 250W GPU array solution to a 4W DSP implementation using eight Vision P5 DSP cores. “In smartphones, the new DSP core could displace some of the GPU silicon, trading off your typical 5W mobile GPU solution for a 300mW DSP”, Crespo said, commenting on the need for more digital signal processing as pixel sizes shrink and signal to noise ratio gets worse. “4K video which used to be seen only in the professional domain is now moving to smartphones” he added, saying that professional use cases are pushing image resolutions to 50 or even 100 Mpixels. According to Crespo, the new IP is the sort of DSP solution needed for image data mining or even audio data mining that, when coupled with machine learning, could figure out what users may want to buy at what time. This is the sort of predictive consumer analysis that advertisers are expecting from big data. Another promising mass market could be drones, according to Crespo, most of the object detection algorithms found in automotive could directly translate into the drone market. Such a DSP could be integra-ted into a new SoC for drone control systems, to alleviate poor operator performance and smooth out the flight and video recording experience. AC/DC CONVERTERS nHigh Voltage n High Robustness n High Integration ROHM Semiconductor offers a wide line-up of AC/DC Controllers for external MOSFET as well as fully integrated converters with internal MOSFETs. Highlight: AC/DC Converter IC for SiC-MOSFET Driving Why using SiC MOSFET for AC/DC? • High Voltage Operation possible with Low RON & Qg • Less components (no high voltage clamper, no gate clamper, less cooling) • Compact solution BD7682FJ Key Features • Quasi – Resonant DC/DC converter • Integrated Gate Driver optimized for driving of SiC MOSFET • Low VCC current (19μA @VCC = 18.5V) • Burst function at light load • Max. Frequency Controlled (120kHz) • VCC Over/Under Voltage Protection • Brown IN/OUT Function • DC/DC Soft Start • 250 nsec Leading-Edge Blanking • Over Load Protection ( 128 ms Timer ) Optimum System for Driving SiC MOSFET Technology for you Sense it Light it Power it ! www.rohm.com/eu www.electronics-eetimes.com Electronic Engineering Times Europe November 2015 41


EETE NOV 2015
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