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Automotive mmWave radar sensors

AWR1843

ACTIVE

Single-chip 76-GHz to 81-GHz automotive radar sensor integrating DSP, MCU and radar accelerator

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AWR1843

ACTIVE
Data sheet Order now

Product details

Frequency range 76 - 81 GHz Number of receivers 4 Number of transmitters 3 ADC sampling rate (max) (Msps) 25 Arm CPU Arm Cortex-R4F at 200 MHz Interface type CAN, CAN-FD, I2C DSP type C674x DSP 600MHz Hardware accelerators Radar hardware accelerator Edge AI enabled Yes RAM (kByte) 2048 Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Compliant Security Cryptographic acceleration, Device attestation & anti-counterfeit, Secure boot, Secure firmware & software update, Software IP protection Power supply solution LP87524B-Q1, LP87524J-Q1, LP87524P-Q1, LP87745-Q1
Frequency range 76 - 81 GHz Number of receivers 4 Number of transmitters 3 ADC sampling rate (max) (Msps) 25 Arm CPU Arm Cortex-R4F at 200 MHz Interface type CAN, CAN-FD, I2C DSP type C674x DSP 600MHz Hardware accelerators Radar hardware accelerator Edge AI enabled Yes RAM (kByte) 2048 Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Compliant Security Cryptographic acceleration, Device attestation & anti-counterfeit, Secure boot, Secure firmware & software update, Software IP protection Power supply solution LP87524B-Q1, LP87524J-Q1, LP87524P-Q1, LP87745-Q1
FCCSP (ABL) 161 108.16 mm² 10.4 x 10.4
  • FMCW transceiver
    • Integrated PLL, transmitter, receiver, Baseband, and ADC
    • 76 to 81GHz coverage with 4GHz available bandwidth
    • Four receive channels
    • Three transmit channels
    • Ultra-accurate chirp engine based on fractional-N PLL
    • TX power: 12dBm
    • RX noise figure:
      • 14dB (76 to 77GHz)
      • 15dB (77 to 81GHz)
    • Phase noise at 1MHz:
      • –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-calibrating system across process and temperature
  • C674x DSP for FMCW signal processing
  • On-chip Memory: 2MB
  • 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
  • Device Security (on select part numbers)
    • Secure authenticated and encrypted boot support
    • Customer programmable root keys, symmetric keys (256 bit), Asymmetric keys (up to RSA-2K) with Key revocation capability
    • Crypto software accelerators - PKA , AES (up to 256 bit), SHA (up to 256 bit), TRNG/DRGB
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid ISO 26262 functional safety system design up to ASIL-D
    • Hardware integrity up to ASIL-B
    • Safety-related certification
      • ISO 26262 certified upto ASIL B by TUV SUD
  • AEC-Q100 qualified
  • Device 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 40MHz
    • Supports externally driven clock (square/sine) at 40MHz
    • Supports 40MHz crystal connection with load capacitors
  • Easy hardware design
    • 0.65mm pitch, 161-pin 10.4mm × 10.4 mmflip chip BGA package for easy assembly and low-cost PCB design
    • Small solution size
  • Operating Conditions
    • Junction temp range: –40°C to 125°C
  • FMCW transceiver
    • Integrated PLL, transmitter, receiver, Baseband, and ADC
    • 76 to 81GHz coverage with 4GHz available bandwidth
    • Four receive channels
    • Three transmit channels
    • Ultra-accurate chirp engine based on fractional-N PLL
    • TX power: 12dBm
    • RX noise figure:
      • 14dB (76 to 77GHz)
      • 15dB (77 to 81GHz)
    • Phase noise at 1MHz:
      • –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-calibrating system across process and temperature
  • C674x DSP for FMCW signal processing
  • On-chip Memory: 2MB
  • 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
  • Device Security (on select part numbers)
    • Secure authenticated and encrypted boot support
    • Customer programmable root keys, symmetric keys (256 bit), Asymmetric keys (up to RSA-2K) with Key revocation capability
    • Crypto software accelerators - PKA , AES (up to 256 bit), SHA (up to 256 bit), TRNG/DRGB
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid ISO 26262 functional safety system design up to ASIL-D
    • Hardware integrity up to ASIL-B
    • Safety-related certification
      • ISO 26262 certified upto ASIL B by TUV SUD
  • AEC-Q100 qualified
  • Device 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 40MHz
    • Supports externally driven clock (square/sine) at 40MHz
    • Supports 40MHz crystal connection with load capacitors
  • Easy hardware design
    • 0.65mm pitch, 161-pin 10.4mm × 10.4 mmflip chip BGA package for easy assembly and low-cost PCB design
    • Small solution size
  • Operating Conditions
    • Junction temp range: –40°C to 125°C

The AWR1843 device is an integrated single-chip FMCW radar sensor capable of operation in the 76 to 81GHz band. The device is built with TI’s low-power 45nm RFCMOS process and enables unprecedented levels of integration in an extremely small form factor. The AWR1843 is an ideal solution for low-power, self-monitored, ultra-accurate radar systems in the automotive space.

The AWR1843 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 81GHz. It is built on TI’s low-power 45nm RFCMOS process, which enables a monolithic implementation of a 3TX, 4RX system with built-in PLL and ADC converters. It integrates the 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 R4F based for automotive interfacing. The Hardware Accelerator block (HWA) can perform radar processing and can help save MIPS on the DSP for higher level algorithms. 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.

The AWR1843 device is an integrated single-chip FMCW radar sensor capable of operation in the 76 to 81GHz band. The device is built with TI’s low-power 45nm RFCMOS process and enables unprecedented levels of integration in an extremely small form factor. The AWR1843 is an ideal solution for low-power, self-monitored, ultra-accurate radar systems in the automotive space.

The AWR1843 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 81GHz. It is built on TI’s low-power 45nm RFCMOS process, which enables a monolithic implementation of a 3TX, 4RX system with built-in PLL and ADC converters. It integrates the 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 R4F based for automotive interfacing. The Hardware Accelerator block (HWA) can perform radar processing and can help save MIPS on the DSP for higher level algorithms. 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.
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet AWR1843 Single-Chip 77 to 79GHz FMCW Radar Sensor datasheet (Rev. D) PDF | HTML 12 Sep 2024
* Errata AWR1843 Device Errata, Silicon Revision 1.0 (Rev. C) PDF | HTML 31 Dec 2020
* User guide AWR18xx/16xx/14xx/68xx Technical Reference Manual (Rev. E) 18 May 2020
Application note Getting Started with mmWave Sensors PDF | HTML 12 Mar 2025
Application note Flash Variants Supported by the mmWave Sensor (Rev. G) PDF | HTML 17 Dec 2024
White paper Enhanced Detections and Compute for ADAS systems with Next Gen Radar Sensors PDF | HTML 05 Dec 2024
Functional safety information Design Guide for Functional Safety Compliant Systems using mmWave Radar Sensors (Rev. A) PDF | HTML 04 Apr 2024
Functional safety information TUV SUD Functional Safety Certificate for AWR Devices (Rev. A) 11 Jan 2024
White paper Automated parking made possible with TI mmWave radar and ultrasonic sensors (Rev. B) 23 Jun 2023
Application note Self-Calibration of mmWave Radar Devices (Rev. C) PDF | HTML 11 Jan 2023
Application note Interference Mitigation For AWR/IWR Devices (Rev. A) PDF | HTML 22 Sep 2022
White paper How Radar is Displacing Traditional Technologies PDF | HTML 11 Feb 2022
Functional safety information Report on the Certificate Z10 088989 0023 Rev. 00 04 Feb 2022
Certificate AWR1843AOPEVM EU Declaration of Conformity (DoC) (Rev. A) 25 Oct 2021
Application note mmWave Radar Radome Design Guide PDF | HTML 17 Aug 2021
Application note mmWave Production Testing Overview PDF | HTML 10 Apr 2021
Application note Cascade Coherency and Phase Shifter Calibration PDF | HTML 28 Nov 2020
Application note Power Management Optimizations - Low Cost LC Filter Solution (Rev. A) PDF | HTML 11 Nov 2020
EVM User's guide AWR1843BOOST and IWR1843BOOST Single-Chip mmWave Sensing Solution User's Guide (Rev. B) 19 May 2020
Technical article 3 ways radar technology is changing the in-cabin sensing market PDF | HTML 04 May 2020
Application note Programming Chirp Parameters in TI Radar Devices (Rev. A) 13 Feb 2020
Application note AWR1xx and AWR22xx Data Path Programmer’s Guide (Rev. A) 13 Feb 2020
Application note TPS65313-Q1 and TPS65653-Q1 LDO free power solution for AWR1642/AWR1843 27 Jan 2020
User guide AWR1843 Quick Start Guide 12 Aug 2019
Technical article Using TI mmWave technology for car interior sensing PDF | HTML 25 Jul 2019
Application note How to select the right proximity sensor technology 19 Jul 2019
Technical article How to meet European Commission ADAS requirements with TI DC/DC converters PDF | HTML 09 May 2019
Technical article 77-GHz single-chip mmWave radar sensors enable autonomous parking PDF | HTML 09 Jan 2019
Technical article Occupancy detection with mmWave sensors in a moving car PDF | HTML 06 Nov 2018
Application note AWR1642/AWR1843 Application Startup Sequence (Rev. A) 29 Oct 2018
User guide Radar Hardware Accelerator User's Guide (Rev. B) 23 Oct 2018
Application note MIMO Radar (Rev. A) 26 Jul 2018
Application note Watchdog Timer for mmwave Radar Sensors (Rev. A) 08 Jun 2018
Technical article Detecting vehicle occupancy with mmWave sensors PDF | HTML 30 Apr 2018
Application note Adding CAN-FD Tx and Rx to an Existing mmWave Project 12 Apr 2018
White paper Moving from legacy 24GHz to state-of-the-art 77GHz radar 06 Oct 2017
White paper TI smart sensors enable automated driving 17 Apr 2017
White paper Using a complex-baseband architecture in FMCW radar systems 17 Apr 2017

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