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 reference hardware design, software drivers, sample configurations, API guide, and user documentation.

Features:

• 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: 12.5 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 (Two Instances, One Being 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
• ASIL B Targeted
• AECQ100 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