آر اف (فرکانس رادیویی) و بی‌سیم آی سی‌ فرستنده‌گیرنده آر اف

Product Attributes

Introduction

The IWR1843AOP device is an integrated single-chip millimeter-wave sensor capable of operating in the 76 GHz to 81 GHz frequency band and based on FMCW radar technology, with continuous linear frequency modulation pulses of up to 4 GHz. This device is manufactured using a low-power 45 nm RFCMOS process, enabling excellent integration in an ultra-small package. The IWR1843AOP is an ideal solution for low-power, self-monitoring, and ultra-precise radar systems in industrial applications such as building automation, factory automation, drones, material handling, traffic monitoring, and surveillance.

The IWR1843AOP device is a self-contained single-chip solution that simplifies the implementation of millimeter-wave sensors in the 76 GHz to 81 GHz frequency band. The IWR1843AOP includes a monolithic implementation of a 3TX, 4RX system with a built-in PLL and ADC converter. The IWR1843AOP also integrates a DSP subsystem, which includes a high-performance C674x DSP for radar signal processing. This device contains a processor subsystem based on ARM R4F, which is responsible for front-end configuration, control, and calibration. Simple programming model changes can support various sensor implementations and enable dynamic reconfiguration to achieve multi-mode sensors. The Hardware Accelerator Block (HWA) can perform radar processing and helps save MIPS on the DSP with more advanced algorithms. In addition, this device is provided as a complete platform solution, which includes reference designs, software drivers, example configurations, API guides, training, and user documentation.

Features

• FMCW transceiver
  • Antenna-on-Package (AOP) integrating 4 receivers and 3 transmitters
  • Integrated PLL, transmitter, receiver, baseband, and ADC
  • 76GHz to 81GHz coverage with 4GHz usable bandwidth
  • Fractional-N PLL-based ultra-precise chirp engine
  • TX EIRP: 16dBm
  • RX effective isotropic noise figure: 10dB (76 to 81GHz)
  • Phase noise at 1MHz offset: -95dBc/Hz (76 to 77GHz), -93dBc/Hz (77 to 81GHz)
• Built-in calibration and self-test (monitoring)
• Arm Cortex-R4F-based radio control system
  • Built-in firmware (ROM)
  • System with self-calibration for process and temperature
• C674x DSP for FMCW signal processing
• On-chip memory: 2MB RAM
• Arm Cortex-R4F MCU for object tracking and classification, and interface control
• Autonomous mode support (user application loaded from QSPI flash)
• Host interfaces
  • CAN (two instances, one of which is CAN-FD)
  • Additional interfaces for user applications
    • Up to 6 general-purpose ADC channels
    • Up to 2 SPI ports
    • Up to 2 UARTs
    • I²C
    • GPIO
    • Dual-channel LVDS interface for raw ADC data and debug instrumentation
• Device security (on select device variants)
  • Authenticated and encrypted secure boot support
  • Customer-programmable root key with key revocation, symmetric key (256-bit), asymmetric key (up to RSA-2K)
  • Crypto hardware accelerators — PKA, AES (up to 256-bit), SHA (up to 256-bit), TRNG/DRGB
• Targeted at SIL-2 functional safety compliance
• IWR1843AOP advanced features
  • Embedded self-monitoring without host processor
  • Complex baseband architecture
  • Embedded interference detection
  • Programmable phase rotator in TX path for beamforming
• Power management
  • Integrated LDO network for enhanced PSRR
  • I/O dual-voltage support: 3.3V/1.8V
• Clock sources
  • External oscillator at 40MHz
  • Externally driven clock at 40MHz (square wave/sine wave)
  • 40MHz crystal with load capacitors
• Ease of hardware design
  • 0.8mm pitch, 180-pin, 15mm×15mm flip-chip BGA (ALP) package for easy assembly and low-cost PCB design
  • Compact solution size
• Operating conditions
  • Junction temperature range: -40°C to 125°C

Applications

• Automatic doors
• Motion detectors
• Industrial sensors for distance, speed, and angle measurement
• Liquid tank level detection radar
• Displacement sensing
• Traffic monitoring
• Proximity sensing
• Security and surveillance
• Factory automation safety guards
• Level transmitters
• Electric bicycles
• Parking barrier gates
• Off-road vehicle sensors
• Kick electric scooters
• Self-balancing personal transporters