TI AWR1642ABIGABLQ1

The AWR1642 device is an integrated single-chip FMCW radar sensor capable of operating in the 76 to 81GHz band. Built on a low-power 45nm RFCMOS process, it achieves an unprecedented level of integration in an extremely compact package. The AWR1642 is an ideal solution for low-power, self-monitoring, ultra-precise radar systems in automotive applications.

The AWR1642 device is a self-contained FMCW radar sensor single-chip solution that simplifies automotive radar sensor implementation in the 76 to 81GHz band. Built on a low-power 45nm RFCMOS process, it enables a monolithic 2TX, 4RX system with integrated PLL and ADC. It integrates a DSP subsystem featuring a high-performance C674x DSP for radar signal processing. The device includes an ARM R4F-based processor subsystem responsible for radio configuration, control, and calibration. Simple programming model changes support a wide range of sensor implementations (short-range, mid-range, and long-range) with dynamic reconfiguration capability for multi-mode sensor operation. The device is also offered as a complete platform solution, which includes hardware reference designs, software drivers, sample configurations, API guides, and user documentation.

• FMCW transceiver – integrated PLL, transmitter, receiver, baseband, and A2D
• 76 to 81GHz coverage with 4GHz usable bandwidth
• Four receive channels, two transmit channels
• Ultra-precise chirp (timing) engine based on fractional-N PLL
• TX power: 12.5dBm
• RX noise figure:
  • 14dB (76 to 77GHz)
  • 15dB (77 to 81GHz)
• Phase noise at 1MHz offset:
  • –95dBc/Hz (76 to 77GHz)
  • –93dBc/Hz (77 to 81GHz)
• Built-in calibration and self-test (monitoring)
• ARM Cortex-R4F-based radio control system
• Built-in firmware (ROM)
• Self-calibration system for frequency and temperature
• C674x DSP for FMCW signal processing
• On-chip memory: 1.5MB
• Cortex-R4F MCU for object tracking and classification, AUTOSAR, and interface control
• Autonomous mode support (user application loaded from QSPI flash)
• Integrated peripherals
  • Internal memory host interface with ECC
  • CAN (two instances, one of which is CAN-FD)
  • Additional interfaces for user applications
    • Up to 6 ADC channels
    • Up to 2 SPI channels
    • Up to 2 UARTs
    • I2C
    • GPIO
    • 2-lane LVDS interface for raw ADC data and debug instrumentation
• Targets ASIL-B
• AECQ100 compliant
• Embedded self-monitoring without host processor
• Complex baseband architecture
• Embedded interference detection
• Power management
  • Built-in LDO network for enhanced PSRR
  • I/O dual-voltage support: 3.3V/1.8V
• Clock source
  • External oscillator at 40MHz
  • Externally driven clock at 40MHz (square wave/sine wave)
  • 40MHz crystal with load capacitors
• Easy hardware design
  • 0.65mm pitch, 161-pin, 10.4mm x 10.4mm flip-chip BGA package for easy assembly and low-cost PCB design
  • Compact solution size
• Automotive operating temperature range support
• AWR1642 advanced features
  • Embedded self-monitoring without host processor
  • Complex baseband architecture
  • Embedded interference detection
• Power management
  • Built-in LDO network for enhanced PSRR
  • I/O dual-voltage support: 3.3V/1.8V
• Clock source
  • External oscillator at 40MHz
  • Externally driven clock at 40MHz (square wave/sine wave)
  • 40MHz crystal with load capacitors
• Easy hardware design
  • 0.65mm pitch, 161-pin, 10.4mm x 10.4mm flip-chip BGA package for easy assembly and low-cost PCB design
  • Compact solution size
• Automotive operating temperature range support

• Blind spot detection
• Lane change assist
• Cross-traffic alert
• Parking assist
• Occupancy detection
• Simple gesture recognition
• Door opener application