IWR1843

ACTIVE

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

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IWR1843AOP ACTIVE Single-chip 76-GHz to 81-GHz industrial radar sensor integrating antenna on package, DSP and MCU Different package (AOP)

Product details

Type IC Frequency range 76 - 81 GHz Number of receivers 4 Number of transmitters 3 ADC sampling rate (ksps) 25000 TX power (dBm) 12 Arm CPU Arm Cortex-R4F at 200 MHz Hardware accelerators Radar hardware accelerator Edge AI enabled Yes DSP type 1 C67x DSP @ 600MHz Interface type CAN, CAN-FD, I2C, LVDS, QSPI, SPI, UART RAM (kByte) 2048 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 LP87702-Q1, LP87745-Q1 Rating Catalog
Type IC Frequency range 76 - 81 GHz Number of receivers 4 Number of transmitters 3 ADC sampling rate (ksps) 25000 TX power (dBm) 12 Arm CPU Arm Cortex-R4F at 200 MHz Hardware accelerators Radar hardware accelerator Edge AI enabled Yes DSP type 1 C67x DSP @ 600MHz Interface type CAN, CAN-FD, I2C, LVDS, QSPI, SPI, UART RAM (kByte) 2048 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 LP87702-Q1, LP87745-Q1 Rating Catalog
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
  • 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, 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
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid IEC 61508 functional safety system design up to SIL 3
    • Hardware integrity up to SIL-2
    • Safety-related certification
  • 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 3.3V/1.8V
  • 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 × 10.4mmflip 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
  • 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, 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
  • Functional Safety-Compliant
    • Developed for functional safety applications
    • Documentation available to aid IEC 61508 functional safety system design up to SIL 3
    • Hardware integrity up to SIL-2
    • Safety-related certification
  • 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 3.3V/1.8V
  • 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 × 10.4mmflip 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 IWR1843 device is an integrated single-chip mmWave sensor based on FMCW radar technology capable of operating in the 76 to 81GHz band with up to 4GHz continuous chirp. The device is built with the low-power 45nm RFCMOS process from Texas Instruments. This solution enables unprecedented levels of integration in an extremely small form factor. The IWR1843 is an ideal solution for low-power, self-monitored, ultra-accurate radar systems in industrial applications, such as, building automation, factory automation, drones, material handling, traffic monitoring, and surveillance.

The IWR1843 device is a self-contained, single-chip solution that simplifies the implementation of mmWave sensors in the band of 76 to 81GHz. The IWR1843 includes a monolithic implementation of a 3TX, 4RX system with built-in PLL, and ADC converters. The IWR1843 also integrates a DSP subsystem, which contains a TI high-performance C674x DSP for the radar signal processing. The device includes an ARM R4F-based processor subsystem, which is responsible for front-end configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor. The Hardware Accelerator block (HWA) can perform radar processing and can help save MIPS on the DSP for higher-level algorithms. Additionally, the device is provided as a complete platform solution including TI reference designs, software drivers, sample configurations, API guides, training, and user documentation.

The IWR1843 device is an integrated single-chip mmWave sensor based on FMCW radar technology capable of operating in the 76 to 81GHz band with up to 4GHz continuous chirp. The device is built with the low-power 45nm RFCMOS process from Texas Instruments. This solution enables unprecedented levels of integration in an extremely small form factor. The IWR1843 is an ideal solution for low-power, self-monitored, ultra-accurate radar systems in industrial applications, such as, building automation, factory automation, drones, material handling, traffic monitoring, and surveillance.

The IWR1843 device is a self-contained, single-chip solution that simplifies the implementation of mmWave sensors in the band of 76 to 81GHz. The IWR1843 includes a monolithic implementation of a 3TX, 4RX system with built-in PLL, and ADC converters. The IWR1843 also integrates a DSP subsystem, which contains a TI high-performance C674x DSP for the radar signal processing. The device includes an ARM R4F-based processor subsystem, which is responsible for front-end configuration, control, and calibration. Simple programming model changes can enable a wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor. The Hardware Accelerator block (HWA) can perform radar processing and can help save MIPS on the DSP for higher-level algorithms. Additionally, the device is provided as a complete platform solution including TI reference designs, software drivers, sample configurations, API guides, training, and user documentation.

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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet IWR1843 Single-Chip 76 to 81GHz FMCW mmWave Sensor datasheet (Rev. B) PDF | HTML 20 Sep 2024
* Errata IWR1843 Device Errata, Silicon Revision 1.0 (Rev. A) 28 May 2021
* User guide IWR14xx/16xx/18xx/68xx/64xx Industrial Radar Family Technical Reference Manual (Rev. E) 08 Jun 2020
Application note Flash Variants Supported by the mmWave Sensor (Rev. G) PDF | HTML 17 Dec 2024
Application brief mmWave Radar For eBike and Scooter Safety Applications PDF | HTML 05 Dec 2024
Application note Flash Variants Supported by the mmWave Sensor (Rev. E) PDF | HTML 24 Jan 2024
Functional safety information IWRxx43 TUV SUD Functional Safety Certificate (Rev. B) 23 Jan 2024
Application note Self-Calibration of mmWave Radar Devices (Rev. C) PDF | HTML 11 Jan 2023
Application note Migrating to xWR68xx and xWR18xx Millimeter Wave Sensors (Rev. C) PDF | HTML 12 Oct 2022
Application note Interference Mitigation For AWR/IWR Devices (Rev. A) PDF | HTML 22 Sep 2022
Functional safety information Certificate No. Z10 088989 0022 Rev. 00 (Rev. A) 02 Jun 2022
Application note mmWave Radar Radome Design Guide PDF | HTML 17 Aug 2021
Application note mmWave Radar Sensors: Object Versus Range (Rev. A) 10 May 2021
Technical article Improving industrial radar RF performance with low-noise, thermal-optimized power PDF | HTML 21 Apr 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
Technical article Exploring advancements in industrial and automotive markets with 60-GHz radar PDF | HTML 03 Aug 2020
White paper mmWave radar sensors in robotics applications (Rev. A) 22 Jun 2020
White paper Machine Learning Powers Autonomous Industrial Systems (Rev. A) 17 Jun 2020
EVM User's guide AWR1843BOOST and IWR1843BOOST Single-Chip mmWave Sensing Solution User's Guide (Rev. B) 19 May 2020
E-book Ein Techniker-Leitfaden für Industrieroboter-Designs 25 Mar 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
E-book E-book: An engineer’s guide to industrial robot designs 12 Feb 2020
Application note How to select the right proximity sensor technology 19 Jul 2019
White paper Bringing intelligent autonomy to fine motion detection (Rev. A) 20 Dec 2018
User guide Radar Hardware Accelerator User's Guide (Rev. B) 23 Oct 2018
Application note mmWave xWR1xxx/xWR6xxx Bootloader Flow 23 Oct 2018
Application note mmwave Radar Device ADC Raw Data Capture (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
White paper mmWave radar: Enabling greater intelligent autonomy at the edge 06 Jun 2018
White paper Robust traffic and intersection monitoring using millimeter wave sensors (Rev. B) 17 May 2018
Application note TI mmWave Radar sensor RF PCB Design, Manufacturing and Validation Guide 07 May 2018
Application note Adding CAN-FD Tx and Rx to an Existing mmWave Project 12 Apr 2018
User guide Radar Hardware Accelerator User's Guide - Part 2 (Rev. A) 13 Mar 2018
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 Fluid-level sensing using 77GHz millimeter wave 17 Apr 2017

Design & development

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Online training

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Software programming tool

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