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    IWRL6843/44 Single-Chip 57 to 64GHz Industrial Radar Sensor

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    Texas Instruments

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    1 Features

    ? FMCW Transceiver

    ¨C Integrated PLL, transmitter, receiver, baseband

    and ADC

    ¨C 57 - 64GHz coverage With 7GHz continuous

    bandwidth

    ¨C 4 receive channels and 3 to 4 transmit channels

    (IWRL6843 with 3 channels and IWRL6844

    with 4 channels)

    ¨C 13dBm typical output power per Tx

    ¨C 12.5dB typical noise figure

    ¨C -89dBc/Hz typical phase noise at 1MHz

    ¨C FMCW operation

    ¨C 10MHz IF bandwidth, real-only Rx channels

    ¨C Ultra-accurate chirp engine based on fractional-

    N PLL

    ¨C Per transmitter binary phase shifter

    ? Processing elements

    ¨C Arm? R5F? core with double precision FPU

    (200MHz)

    ¨C Hardware Accelerator (HWA 1.2) for FFT, log

    magnitude, and CFAR operations (200MHz)

    ¨C C66x DSP (450MHz) for post processing Radar

    data

    ? Supports multiple low-power modes

    ¨C Idle mode and deep sleep mode

    ? Power management

    ¨C 1.8V and 3.3V IO support

    ¨C Built-in LDO network for enhanced PSRR

    ¨C Two power rails for 1.8V IO mode, Three power

    rails for 3.3V IO mode

    ? FCCSP package having 17 x 17 BGA grid, 207

    BGA balls; Package size: 9.1mm x 9.1mm

    ? Built-in calibration and self-test

    ¨C Built-in Firmware (ROM)

    ¨C Self-Contained on chip calibration system

    ? Host Interface

    ¨C 3 x UART

    ¨C 2 x CAN-FD

    ¨C 2 x SPI

    ¨C 1 x LIN

    ? LVDS for data transfer of raw ADC sample capture

    ? Other interfaces available to user application

    ¨C QSPI

    ¨C I2C

    ¨C JTAG

    ¨C GPIOs

    ¨C PWM Interface

    ¨C GPADCs

    ? Device security

    ¨C Programmable embedded hardware security

    module (HSM)

    ¨C Secure authenticated and encrypted boot

    support

    ¨C Customer programmable root keys, symmetric

    keys (256 bit), asymmetric keys (up to RSA-4K

    or ECC-512) with key revocation capability

    ¨C Cryptographic hardware accelerators: PKA with

    ECC/RSA, AES (up to 256 bit), SHA (up

    to 512 bit), TRNG/DRBG and SM2, SM3,

    SM4(Chinese Crypto Algorithms)

    ¨C ISO21434 Cyber Security certification targeted

    ? Internal memory

    ¨C On-Chip RAM - 2.5MBytes (2MB for

    IWRL6843)

    ¨C R5F TCMA RAM - 512KB

    ¨C R5F TCMB RAM - 256KB

    ¨C DSS L2 RAM - 384KB

    ¨C DSS L3 RAM - 512KB (available only in

    IWRL6844)

    ¨C DSS L3 Shared RAM - 896KB (can be shared

    with TCMs)

    ? Functional Safety-Compliant Targeted

    ¨C Developed for Functional Safety Applications

    ¨C Hardware integrity up to SIL 2 targeted

    ? Clock source

    ¨C 40.0MHz crystal for primary clock

    ¨C Supports externally driven clock (Square/Sine)

    at 40.0MHz

    ¨C 32kHz internal oscillator for low power

    operations

    ? Supports temperature operating conditions

    ¨C Junction Temperature Range: ¨C40¡ãC to 105¡ãC

    2 Applications

    ? Automated door / gate

    ? Motion detector

    ? Occupancy detection / people tracking / people

    counting

    ? Video doorbell

    ? Drones

    ? Level Sensing

    ? Industrial Robots

    ? IP network camera

    ? Thermostat

    ? Air conditioner

    ? Refrigerators and freezers

    ? Vacuum robot

    ? Lawn mover

    ? Home theater

    ? PC/Notebooks

    ? Portable electronics

    ? Televisions

    ? Tablets

    ? Earphones

    ? Smart watches

    3 Description

    The IWRL684x mmWave Sensor device is TI's low power and Hardware Security Module (HSM) enabled

    integrated single chip mmWave sensor based on FMCW radar technology. The device is capable of operation in

    the 57GHz to 64GHz band and is designed for various industrial use cases. The device also takes advantage

    of a low power architecture to enable power-constrained applications. The device is split into the following four

    switchable power domains:

    1. RF/Analog Sub-System: This block includes all the RF and Analog components required to transmit and

    receive the RF signals.

    2. Front-End Controller sub-System (FECSS): FECSS contains processor, responsible for radar front-end

    configuration, control, and calibration.

    3. Application Sub-System (APPSS): APPSS is where the device implements a user programmable ARM

    Cortex-R5F allowing for custom control and industrial interface applications. Top Sub-System (TOPSS) and

    Hardware Security Module (HSM) is part of the APPSS power domain and contains the clocking and power

    management sub-blocks.

    4. DSP Sub-Systems (DSS): TI's high-performance C66x DSP is integrated in it for radar signal processing.

    The hardware accelerator block (HWA 1.2) supplements the DSP and ARM Cortex-R5F by offloading

    common radar processing such as FFT, constant false alarm rate (CFAR), scaling, and compression.

    The IWRL684x is specifically designed to be able to dynamically control the power states of the abovementioned

    power domains based on application requirements. The device also features various low-power

    states. These low-power states are achieved by turning off internal IP blocks of the device. IWRL684x device

    also provides the option of retaining memory during these low power states to retain critical information such as

    application image and RF profiles across different power modes.

    A Hardware Security Module (HSM) is also provisioned in the device (available with secure part variants). The

    HSM consists of a programmable Arm Cortex-M4 core and the necessary infrastructure to provide a secure zone

    of operation within the device.

    Additionally, the device is built with TI¡¯s low power 45nm RF CMOS process and enables unprecedented

    levels of integration in an extremely small form factor. IWRL684x is designed for low power, self-monitored,

    ultra-accurate radar systems in the industrial space for applications like high density people tracking & counting,

    industrial robots and drones .

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    • 633-015-263-040
    • 633-015-263-041
    • 633-015-263-042
    • 633-015-263-043
    • 633-015-263-045
    • AWRL6843DBGANCRQ1
    • AWRL6843DBSANCRQ1
    • AWRL6844
    • AWRL6844DBGANCRQ1
    • AWRL6844DBSANCRQ1
    • CX4MB2102P5IWL-XRH
    • IWRL6843
    • IWRL6843DBSANCR
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