Single-chip 76-GHz to 81-GHz automotive radar sensor integrating antenna on package, DSP and MCU ;


Product details


Number of receivers 4 Number of transmitters 3 ADC sampling rate (Max) (MSPS) 25 Arm CPU ARM-Cortex R4F 200MHz Interface type CAN, CAN-FD, I2C, QSPI, SPI, UART DSP C674x DSP 600MHz Hardware accelerators Radar hardware accelerator RAM 2048 Rating Automotive Operating temperature range (C) -40 to 125 open-in-new Find other Automotive mmWave radar sensors

Package | Pins | Size

FCBGA (ALP) 180 open-in-new Find other Automotive mmWave radar sensors


  • FMCW transceiver
    • Integrated 4 receivers and 3 transmitters Antennas-On-Package (AOP)
    • Integrated PLL, transmitter, receiver, Baseband, and ADC
    • 76- to 81-GHz coverage with 4 GHz available bandwidth
    • Ultra-accurate chirp engine based on fractional-N PLL
    • TX power: 16 dBm
    • RX noise figure: 10 dB (76 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: 2MB RAM
  • Arm Cortex-R4F microcontroller for object tracking and classification, AUTOSAR, and interface control
    • Supports autonomous mode (loading user application from QSPI flash memory)
  • Host interface
    • CAN (two instances, one being CAN-FD)
  • Other interfaces available to user application
    • Up to 6 general purpose ADC channels
    • Up to 2 SPI ports
    • 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 will be available to aid ISO26262 functional safety system design
    • Hardware integrity up to ASIL-B targeted
    • Safety-related certification
      • ISO 26262 certification by TUV Sud planned
  • AEC-Q100 qualified
  • AWR1843AOP advanced features
    • Embedded self-monitoring with no host processor involvement
    • Complex baseband architecture
    • Embedded interference detection capability
    • Programmable phase rotators in transmit path to enable beam forming
  • 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
    • 0.8-mm pitch, 180-pin 15 mm × 15 mm flip chip BGA package (ALP) for easy assembly and low-cost PCB design
    • Small solution size
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The AWR1843AOP is an Antenna-On-Package device capable of operation in the 76- to 81GHz 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 AWR1843AOP is an ideal solution for low-power, self-monitored, ultra-accurate radar systems in the automotive space.

It integrates a DSP subsystem, which contains TI’s high-performance C674x DSP for the Radar Signal processing. The device includes a BIST processor subsystem, which is responsible for radio configuration, control, and calibration. Additionally the device includes a user programmable Arm Cortex-R4F based for automotive interfacing. The Hardware Accelerator block (HWA) can perform radar processing and can offload the DSP in order to execute higher level algorithms. Simple programming model changes can enable a wide variety of sensor applications 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.

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Technical documentation

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Type Title Date
* Data sheet AWR1843AOP Single-chip 77- and 79-GHz FMCW radar sensor datasheet Mar. 31, 2021
* Errata AWR1843AOP Device Errata, Silicon Revision 1.0 Mar. 31, 2021
Technical article How AoP technology expands radar sensor placement for automotive applications May 27, 2021
Application note mmWave Radar Sensors: Object Versus Range (Rev. A) May 10, 2021
Application note mmWave Production Testing Overview Apr. 10, 2021
User guide AWR1843AOPEVM User’s Guide Mar. 24, 2021
Application note Self-Calibration of mmWave Radar Devices (Rev. A) Dec. 02, 2020
Application note Power Management Optimizations - Low Cost LC Filter Solution (Rev. A) Nov. 11, 2020
White paper The fundamentals of millimeter wave radar sensors (Rev. A) Aug. 27, 2020
Application note Programming Chirp Parameters in TI Radar Devices (Rev. A) Feb. 13, 2020
Application note Interference Management Using AWR/IWR Devices Jan. 03, 2020
Application note Memory Compression and Decompression Engine for TI mmwave Radar Dec. 02, 2019
Technical article Driving industrial innovation with small-size sensors Sep. 12, 2019
Application note How to select the right proximity sensor technology Jul. 19, 2019
Technical article Imaging radar: one sensor to rule them all Jul. 09, 2019
White paper Automated parking made possible with TI mmWave radar and ultrasonic sensors (Rev. A) Jun. 28, 2019
Application note mmwave Radar Device ADC Raw Data Capture (Rev. B) Oct. 23, 2018
Application note Watchdog Timer for mmwave Radar Sensors (Rev. A) Jun. 08, 2018
User guide Radar Hardware Accelerator User's Guide - Part 2 (Rev. A) Mar. 13, 2018
Application note Adding Flash Read and Write to an Existing mmWave Project Sep. 25, 2017
White paper Using a complex-baseband architecture in FMCW radar systems Apr. 17, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The AWR1843 antenna-on-package (AoP) evaluation module (EVM) is an easy-to-use platform for evaluating the AWR1843AOP mmWave radar sensor, with direct connectivity to MMWAVEICBOOST and DCA1000EVM development kits (sold separately).

AWR1843AOPEVM contains everything required to start developing (...)

  • 76-GHz to 81-GHz mmWave sensor
  • Integrated three-transmit four-receive (3TX/4RX) AoP with 140° Azimuth field of view (FoV) and 140° elevation FoV
  • On-chip C67x DSP core and Arm Cortex-R4F processor
  • Direct interface with DCA1000EVM and MMWAVEICBOOST
  • Breakaway mode allows for small form factor

Software development

mmWave software development kit (SDK)
MMWAVE-SDK The mmWave software development kit (SDK) is a collection of software packages to enable application evaluation and development on TI mmWave sensors. This tool includes the MMWAVE-SDK and companion packages to support your design needs.

The MMWAVE-SDK is a unified software platform for the TI mmWave (...)

  • Building blocks
    • Full driver availability
    • Layered approach to programming analog front end (AFE)
    • Catalog of mmWave algorithms optimized for C674x DSPs
  • Demonstrations and examples
    • TI RTOS-based demos
    • Out-of-box demo with easy configurability via TI cloud-based GUI
    • Representation of "point cloud" and (...)

Design tools & simulation

SPRM739.ZIP (1 KB) - BSDL Model
SPRM780.ZIP (1008 KB) - IBIS Model

Reference designs

Obstacle detection reference design using 76-Ghz to 81-GHz antenna-on-package (AoP) mmWave sensor
TIDEP-01024 This reference design demonstrates the use of the AWR1843AOP, a 76-GHz to 81-GHz, single-chip, frequency-modulated continuous wave (FMCW) mmWave sensor with an integrated antenna on package (AoP). The sensor also has integrated DSP, MCU, and a hardware accelerator for fast Fourier transform (FFT (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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