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Features for the AWR1642

• FMCW transceiver
  • Integrated PLL, transmitter, receiver, Baseband, and A2D
  • 76- 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 dBm
  • RX noise figure:
    • 14 dB (76 to 77 GHz)
    • 15 dB (77 to 81 GHz)
  • Phase noise at 1 MHz:
    • –95 dBc/Hz (76 to 77 GHz)
    • –93 dBc/Hz (77 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: 1.5MB
• Cortex-R4F microcontroller for object tracking and classification, AUTOSAR, and interface control
  • Supports autonomous mode (loading user application from QSPI flash memory)
• Integrated peripherals
  • Internal memories with ECC
• Host interface
  • CAN and CAN-FD
• Other interfaces available to user application
  • Up to 6 ADC channels
  • Up to 2 SPI channels
  • Up to 2 UARTs
  • I²C
  • GPIOs
  • 2-lane LVDS interface for raw ADC data and debug instrumentation
• Functional Safety-Compliant targeted
  • Developed for functional safety applications
  • Documentation is available to aid ISO 26262 functional safety system design
  • Hardware integrity up to ASIL B targeted
  • Safety-related certification
    • ISO 26262 certification by TUV Sud planned
• AEC-Q100 qualified
• AWR1642 advanced features
  • Embedded self-monitoring with no host processor involvement
  • Complex baseband architecture
  • Embedded interference detection capability
• Power management
  • Built-in LDO network for enhanced PSRR
  • I/Os support dual voltage 3.3 V/1.8 V
• Clock source
  • Supports External Oscillator at 40 MHz
  • Supports externally driven clock (square/sine) at 40 MHz
  • Supports 40 MHz crystal connection with load capacitors
• Easy hardware design
  • 0.65-mm pitch, 161-pin 10.4 mm × 10.4 mm flip chip BGA package for easy assembly and low-cost PCB design
  • Small solution size
• Supports automotive temperature operating range

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Description for the AWR1642

The AWR1642 device is an integrated single-chip FMCW radar sensor capable of operation in the 76- to 81-GHz band. The device is built with TI’s low-power 45-nm RFCMOS process and enables unprecedented levels of integration in an extremely small form factor. The AWR1642 is an ideal solution for low-power, self-monitored, ultra-accurate radar systems in the automotive space.

The AWR1642 device is a self-contained FMCW radar sensor single-chip solution that simplifies the implementation of Automotive Radar sensors in the band of 76 to 81 GHz. It is built on TI’s low-power 45-nm RFCMOS process, which enables a monolithic implementation of a 2TX, 4RX system with built-in PLL and A2D converters. It integrates the DSP subsystem, which contains TI’s high-performance C674x DSP for the Radar Signal processing. The device includes an ARM R4F-based processor subsystem, which is responsible for radio configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementation (Short, Mid, Long) with the possibility of dynamic reconfiguration for implementing a multimode sensor. Additionally, the device is provided as a complete platform solution including TI reference designs, software drivers, sample configurations, API guides, and user documentation.