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Automotive mmWave radar sensors

AWR1642

ACTIVE

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

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Data sheet
User guides
Errata

AWR1642

ACTIVE
Data sheet Order now

Product details

Frequency range 76 - 81 GHz Number of receivers 4 Number of transmitters 2 ADC sampling rate (max) (Msps) 12.5 Arm CPU Arm Cortex-R4F at 200 MHz Interface type CAN, CAN-FD, I2C, QSPI, SPI, UART DSP type C674x DSP 600MHz RAM (kByte) 1536 Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Compliant Power supply solution LP87524B-Q1, LP87524J-Q1, LP87524P-Q1, LP87745-Q1 Security Cryptographic acceleration, Device identity/keys, Secure boot, Secure software update, Software IP protection
Frequency range 76 - 81 GHz Number of receivers 4 Number of transmitters 2 ADC sampling rate (max) (Msps) 12.5 Arm CPU Arm Cortex-R4F at 200 MHz Interface type CAN, CAN-FD, I2C, QSPI, SPI, UART DSP type C674x DSP 600MHz RAM (kByte) 1536 Rating Automotive Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Compliant Power supply solution LP87524B-Q1, LP87524J-Q1, LP87524P-Q1, LP87745-Q1 Security Cryptographic acceleration, Device identity/keys, Secure boot, Secure software update, Software IP protection
FCCSP (ABL) 161 108.16 mm² 10.4 x 10.4
  • FMCW transceiver
    • Integrated PLL, transmitter, receiver, Baseband, and ADC
    • 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 process 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
  • 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
  • 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
  • Operating Conditions
    • Junction temp range: –40°C to 125°C
  • FMCW transceiver
    • Integrated PLL, transmitter, receiver, Baseband, and ADC
    • 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 process 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
  • 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
  • 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
  • Operating Conditions
    • Junction temp range: –40°C to 125°C

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 ADC 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.

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 ADC 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.
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Award-winning sensors available now

AWR1642 is part of the TI award-winning mmWave sensor portfolio. Acknowledgements include:

  • CES 2018 Innovation Award Honoree in three categories
  • Electronic Products 2017 Product of the Year in the Sensing Category
  • 2017 Annual Creativity in Electronics (ACE) Award for Sensor of the Year
  • Elektronik 2018 Reader’s Choice Product of the Year in Active Components Category

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Technical documentation

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Type Title Date
* Data sheet AWR1642 Single-Chip 77- and 79-GHz FMCW Radar sensor datasheet (Rev. C) PDF | HTML 30 Dec 2021
* Errata AWR1642 Device Errata, Silicon Revisions 1.0, 2.0 (Rev. B) PDF | HTML 31 Dec 2020
* User guide AWR18xx/16xx/14xx/68xx Technical Reference Manual (Rev. E) 18 May 2020
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 30 Apr 2024
Functional safety information Design Guide for Functional Safety Compliant Systems using mmWave Radar Sensors (Rev. A) PDF | HTML 04 Apr 2024
Application note Flash Variants Supported by the mmWave Sensor (Rev. E) PDF | HTML 24 Jan 2024
Functional safety information TUV SUD Functional Safety Certificate for AWR Devices (Rev. A) 11 Jan 2024
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
Functional safety information Report on the Certificate Z10 088989 0023 Rev. 00 04 Feb 2022
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 Power Management Optimizations - Low Cost LC Filter Solution (Rev. A) PDF | HTML 11 Nov 2020
White paper The fundamentals of millimeter wave radar sensors (Rev. A) 27 Aug 2020
User guide AWR1642 Evaluation Module Single-Chip mmWave Sensing Solution User's Guide (Rev. C) 19 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
Technical article Using TI mmWave technology for car interior sensing PDF | HTML 25 Jul 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
Application note mmwave Radar Device ADC Raw Data Capture (Rev. B) 23 Oct 2018
Technical article Can mmWave sensors prevent damage to your car door? PDF | HTML 16 Aug 2018
Application note MIMO Radar (Rev. A) 26 Jul 2018
Application note Watchdog Timer for mmwave Radar Sensors (Rev. A) 08 Jun 2018
White paper mmWave radar: Enabling greater intelligent autonomy at the edge 06 Jun 2018
Application note Adding CAN Tx and Rx to an Existing mmWave Project 31 May 2018
Application note CAN Node on AWR1642 15 May 2018
Application note TI mmWave Radar sensor RF PCB Design, Manufacturing and Validation Guide 07 May 2018
Technical article Detecting vehicle occupancy with mmWave sensors PDF | HTML 30 Apr 2018
Technical article Smart sensors are going to change how you drive (because eventually, you won’t) PDF | HTML 25 Apr 2018
Application note Adding CAN-FD Tx and Rx to an Existing mmWave Project 12 Apr 2018
User guide AWR1642 Obstacle Detection Sensor (AWR1642BOOST-ODS) User's Guide 22 Mar 2018
Application note CMOS MMIC Ready for Road – A Technology Overview 28 Feb 2018
Technical article The picture of the distance: Detecting range to help mmWave sensors understand the PDF | HTML 22 Feb 2018
White paper Reliability advantages of TI flip-chip BGA packaging 25 Jan 2018
Technical article A smarter world will arrive in waves PDF | HTML 09 Jan 2018
White paper 77GHz single chip radar sensor enables automotive body and chassis applications 12 Dec 2017
Technical article CMOS technology enables the lowest power consumption mmWave sensors for automotive PDF | HTML 29 Nov 2017
Technical article mmWave fundamentals: Range, velocity and angle PDF | HTML 01 Nov 2017
Technical article Why are automotive radar systems moving from 24GHz to 77GHz? PDF | HTML 25 Oct 2017
Application note XWR1xxx Power Management Optimizations - Low Cost LC Filter Solution 16 Oct 2017
White paper Moving from legacy 24GHz to state-of-the-art 77GHz radar 06 Oct 2017
Application note Adding Flash Read and Write to an Existing mmWave Project 25 Sep 2017
White paper Cities grow smarter through innovative semiconductor technologies 07 Jul 2017
Technical article Giving cars advanced vision through TI mmWave sensors PDF | HTML 16 May 2017
More literature TI Resource Explorer (TIREX) mmWave Training Series 15 May 2017
Application note System Performance Measurement With the mmWave Sensor 10 May 2017
Application note AWR1642 Bootloader Flow 09 May 2017
Application note Introduction to the DSP Subsystem in the AWR16xx 09 May 2017
White paper AWR1642: 77GHz Radar-on-Chip for Short-Range Radar Applications 17 Apr 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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