AWR1443 Automotive Radar Sensor

By Texas Instruments 315

AWR1443 Automotive Radar Sensor

Texas Instruments' AWR1443 integrated single-chip, frequency-modulated continuous wave (FMCW) radar sensor is capable of operation in the 76 GHz to 81 GHz band. It is built with TI’s low-power 45 nm radio frequency, complementary metal-oxide semiconductor (RFCMOS) process with an integrated Arm® R4F processor and a hardware accelerator for radar data processing. This solution enables unprecedented levels of integration in an extremely small form factor. The AWR1443 is an ideal solution for low-power, self-monitored, ultra-accurate radar systems in the automotive space.

The AWR1443 device is a self-contained FMCW radar sensor single-chip solution that simplifies the implementation of automotive radar sensors in the band of 76 GHz to 81 GHz. It enables a monolithic implementation of a 3TX, 4RX system with built-in phase-locked loop (PLL) and analog-to-digital converters (ADCs). A wide variety of sensor implementation (short, mid, and long) with the possibility of dynamic reconfiguration for implementing a multimode sensor with simple programming model changes. This sensor is provided as a complete platform solution including reference hardware design, software drivers, sample configurations, API guide, and user documentation.

The requirements for a radar device, in terms of radar data cube memory, processing capacity, and functional safety monitoring, vary for different applications. In this context, the AWR1443 can be viewed as a 77 GHz radar-on-a-chip solution for entry-level radar applications.


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  • FMCW transceiver:
    • Integrated PLL, transmitter, receiver, baseband, and ADC
    • 76 GHz to 81 GHz coverage with 4 GHz available bandwidth
    • Four receive channels
    • Three transmit channels (two can be used simultaneously)
  • On-chip programmable core for embedded user application:
    • Integrated Cortex®-R4F microcontroller clocked at 200 MHz
    • On-chip bootloader supports autonomous-mode: loading user applications from queued serial peripheral interface (QSPI) Flash memory
    • Integrated peripherals
  • High-speed data interface to support distributed applications
  • Supports automotive temperature operating range
  • Host interface:
    • Control interface with external processor over serial peripheral interface (SPI)
    • Interrupts for fault reporting
  • AECQ100 qualified
  • AWR1443 advanced features:
    • Embedded self-monitoring with no host processor involvement
  • Power management:
    • Built-in low dropout (LDO) network for enhanced power supply rejection ratio (PSRR)
  • Clock source:
    • Supports externally driven clock (square/sine) at 40 MHz
  • Easy hardware design
  • Proximity sensing
  • Parking assistance
  • Occupancy detection
  • Simple gesture recognition
  • Car door opener applications

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