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IWR1843 Dataheets PDF



Part Number IWR1843
Manufacturers Texas Instruments
Logo Texas Instruments
Description Single-Chip 76- to 81-GHz FMCW mmWave Sensor
Datasheet IWR1843 DatasheetIWR1843 Datasheet (PDF)

IWR1843 SWRS228A – SEPTEMBER 2019 – REVISED JANUARY 2022 IWR1843 Single-Chip 76- to 81-GHz FMCW mmWave Sensor 1 Features • FMCW transceiver – Integrated PLL, transmitter, receiver, Baseband, and ADC – 76- to 81-GHz coverage with 4 GHz available bandwidth – Four receive channels – Three transmit channels – Ultra-accurate chirp engine based on fractional- N PLL – TX power: 12 dBm • Built-in calibration and self-test (monitoring) – Arm® Cortex®-R4F-based radio control system – Built-in firmware (R.

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IWR1843 SWRS228A – SEPTEMBER 2019 – REVISED JANUARY 2022 IWR1843 Single-Chip 76- to 81-GHz FMCW mmWave Sensor 1 Features • FMCW transceiver – Integrated PLL, transmitter, receiver, Baseband, and ADC – 76- to 81-GHz coverage with 4 GHz available bandwidth – Four receive channels – Three transmit channels – Ultra-accurate chirp engine based on fractional- N PLL – TX power: 12 dBm • 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 • IEC 61508 certified upto SIL 2 by TUV SUD • 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 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 105°C An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. IWR1843 SWRS228A – SEPTEMBER 2019 – REVISED JANUARY 2022 2 Applications • Smart/Automatic door openers Industrial sensor for measuring range, velocity, and angle • Tank level probing radar • Displacement sensing • Field transmitters 40-MHz Crystal • Traffic monitoring • Proximity sensing • Security and surveillance • Factory automation safety guards • People counting • Motion detection QSPI Flash Power Management POWER www.ti.com Antenna Structure RX1 RX2 RX3 RX4 TX1 TX2 TX3 mmWave/ Radar Front End Integrated MCU ARM Cortex-R4F Integrated DSP TI C674x SPI UART Tx/Rx CAN IWR1843 Figure 2-1. Autonomous Sensor For Industrial Applications 3 Description The IWR1843 device is an integrated single-chip mmWave sensor based on FMCW radar technology capable of operating in the 76- to 81-GHz band with up to 4-GHz continuous chirp. The device is built with the low-power 45-nm 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 81 GHz. 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 R4Fbased 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. PART NUMBER(2) IWR1843ABGABL IWR1843ABGABLR Device Information PACKAGE(1) BODY SIZE FCBGA (161) 10.4 mm × 10.4 mm TRAY / TAPE AND REEL Tray Tape and Reel (1) For more information, see Section 13, Mechanical, Packaging, and Orderable Information. (2) For more information, see Section 12.1, Device Nomenclature. 2 Submit Docu.


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