AWR1642 and IWR1642 FMCW Radar Sensors-Texas Instruments丨5Star

Date:Nov 30, 2018From: Texas Instruments

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AWR1642 and IWR1642 FMCW Radar Sensors

Texas Instruments' AWR1642 and IWR1642 are single-chip 76 GHz to 81 GHz FMCW radar sensors integrating DSP and MCU

Image of Texas Instruments' AWR1642 FMCW Radar SensorTexas Instruments' AWR1642 and IWR1642 devices are self-contained FMCW radar sensor single-chip solutions that simplify the implementation of automotive radar (AWR1642) and mmWave sensors in the band of 76 GHz to 81 GHz. They are built on Texas Instruments’ low-power 45 nm RFCMOS process, which enables a monolithic implementation of a 2TX, 4RX system with built-in PLL and A2D converters. They integrate the DSP subsystem, which contains Texas Instruments’ high-performance C674x DSP for the radar signal processing. These devices include an Arm® Cortex®-R4F-based processor subsystem, which is responsible for radio (AWR1642) or front-end (IWR1642) configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor. Additionally, the devices are provided as complete platform solutions including reference hardware design, software drivers, sample configurations, API guide, and user documentation.

  • FMCW transceiver
    • Integrated PLL, transmitter, receiver, baseband, and A2D
    • 76 GHz to 81 GHz coverage with 4 GHz available bandwidth
    • Four receive channels
    • Two transmit channels
    • Ultra-accurate chirp (timing) engine based on fractional-N PLL
    • TX power: 12.5 dBm
    • RX noise figure:
      • 14 dB (76 GHz to 77 GHz)
      • 15 dB (77 GHz to 81 GHz)
    • Phase noise at 1 MHz:
      • -95 dBc/Hz (76 GHz to 77 GHz)
      • -93 dBc/Hz (77 GHz to 81 GHz)
  • Built-in calibration and self-test (monitoring)
    • Arm Cortex-R4F-based radio control system
    • Built-in firmware (ROM)
    • Self-calibrating system across frequency and temperature
  • C674x DSP for FMCW signal processing
  • On-chip memory: 1.5 MB
  • Cortex-R4F microcontroller for object tracking and classification, AUTOSAR (AWR1642), and interface control
    • Supports autonomous mode (loading user application from QSPI Flash memory)
  • Integrated peripherals
    • Internal memories with ECC
AWR1642 Applications  
  • Blind spot detection
  • Lane change assistance
  • Cross traffic alerts
  • Parking assistance
  • Occupancy detection
  • Simple gesture recognition
  • Car door opener applications
IWR1642 Applications  
  • Industrial sensor for measuring range, velocity, and angle
  • Tank-level probing radar
  • Displacement sensing
  • Field transmitters
  • Traffic monitoring
  • Proximity sensing
  • Security and surveillance
  • Factory automation safety guards
  • People counting
  • Motion detection
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