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Sigma Fusion

SigmaFusion based on AURIX

Low-power sensor fusion solution for safe autonomous driving
Published on 18 December 2019

Safe perception with low power sensor fusion based on infineon AURIXtm 2nd Generation and 77GHz radar

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   What is SigmaFusion based on AURIXTM?

SigmaFusion™ is a free-space assessment solution based on multi-sensors fusion. The powerful combination of Leti SigmaFusion™, running with Infineon AURIXTM, Radar and safety supply ensures a safe low-power automotive-grade solution.

SigmaFusionTM based on AURIXTM provides:

  • Safety co-pilot for up to Level 5 autonomous driving system
  • ADAS functions with fail-operational perception of the vehicle environment



   Leti SigmaFusionTM enables:

  • Free-space assessment to increase safety of Artificial Intelligence driving algorithms
  • Automotive-grade multi-sensor fusion for performance and power aware ADAS
  • Accurate, safe and predictable sensor fusion implementation
  • Compatibility with any kind of range sensor
  • Under the 3-watt barrier implementation


   Featured Infineon products:

77GHz Radar RXS8160:

  • 3 transmit – 4 receive 77GHz transceiver with integrated, configurable baseband
  • Powerful programmable waveform generator w/ fast chirp modulation
  • Low-Power 130nm BiCMOS technology in eWLB package

Safety Microcontroller AURIXTM TC397X

  • Six TriCore™ with up to 300 MHz (4x Lockstep plus 2 non-Lockstep Cores),
  • TriCore™ DSP functionality, supporting floating point and fix point with all cores
  • Ethernet 1Gbit, FlexRay, CAN-FD, LIN, SPI
  • 16 MByte embedded Flash memory with latest SOTA requirements

Radar Microcontroller AURIXTM TC397XA

  • 2x radar signal processing unit (SPU) running at 300 MHz each
  • Highspeed LVDS sensor interface up to 3.2Gbps (RIF)
  • 4 MB of internal radar SRAM
  • ISO26262 ASIL-D capable radar processor

OPTIREG™ PMIC TLF30682

  • Integrated monitoring and supervision
  • Reduced number of external components for minimized PCB-area

CAN-FD TLE9251V

  • Includes robust Wake-up pattern detection (WUP) fulfilling worldwide wake-up filter timing
  • Is approved without external ESD protection at NAFTA OEMs
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