IWR1443 mmWave Sensor

By Texas Instruments 110

IWR1443 mmWave Sensor

Texas Instruments' IWR1443 integrated single-chip mmWave sensor is based on frequency-modulated continuous wave (FMCW) radar technology and is designed for operation in the 76 GHz to 81 GHz band with up to 4 GHz continuous chirp. It is built with TI’s low-power 45 nm radio frequency complementary metal-oxide semiconductor (RFCMOS) process enabling unprecedented levels of integration in an extremely small form factor. The IWR1443 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 IWR1443 device is a self-contained, single-chip solution that simplifies the implementation of mmWave sensors in the band of 76 GHz to 81 GHz. It includes a monolithic implementation of a 3TX, 4RX system with built-in phase-locked loop (PLL) and analog-to-digital converters (ADCs). This device includes fully configurable hardware accelerator that supports complex fast Fourier transform (FFT) and constant false alarm rate (CFAR) detection.

The IWR1443 includes two Arm® R4F-based processor subsystems including one processor subsystem for master control and additional algorithms. The second processor subsystem is responsible for front-end configuration, control, and calibration. A wide variety of sensor implementation with the possibility of dynamic reconfiguration for implementing a multimode sensor is enabled by simple programming model changes. This device is provided as a complete platform solution including reference hardware design, software drivers, sample configurations, application program interface (API) guide, training, and user documentation.

Features
  • FMCW transceiver:
    • Integrated PLL, transmitter, receiver, baseband, and ADC
    • 76 GHz to 81 GHz coverage with 4 GHz continuous bandwidth
  • Power management:
    • Built-in low dropout (LDO) network for enhanced power supply rejection ratio (PSRR)
  • Clock source:
    • Supports external oscillator at 40 MHz
  • Built-in calibration and self-test:
    • Arm Cortex®-R4F-based radio control system
  • On-chip programmable core for embedded user application:
    • Integrated Cortex-R4F MCU clocked at 200 MHz
  • Easy hardware design:
    • 0.65 mm pitch, 161-pin, 10.4 mm x 10.4 mm flip-chip ball grid array (BGA) package for easy assembly and low-cost PCB design
  • Host interface:
    • Control interface with external processor over serial peripheral interface (SPI)
  • IWR1443 advanced features:
    • Embedded self-monitoring with no host processor involvement
  • Operating conditions:
    • Junction temp. range: -40°C to +105°C
  • High-speed data interface to support distributed applications
Applications
  • Industrial sensor for measuring ranges, velocities, and angles
  • Tank level probing radars
  • Displacement sensing
  • Field transmitters
  • Traffic monitoring
  • Proximity and position sensing
  • Security and surveillance
  • Factory automation
  • Safety guards

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