TIDUF00 November   2021

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
    1. 1.1 Why Radar?
    2. 1.2 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
      1. 2.1.1 Automated Parking Software Block Diagram
    2. 2.2 Highlighted Products
      1. 2.2.1 AWR1843AOP Single-Chip Radar Solution
      2. 2.2.2 mmWave SDK
    3. 2.3 System Design Considerations
      1. 2.3.1 Usage Case Geometry and Sensor Considerations
      2. 2.3.2 AWR1843AOP Antenna
      3. 2.3.3 Processing Chain
    4. 2.4 Chirp Configuration Profile
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Required Hardware and Software
      1. 3.1.1 Hardware
      2. 3.1.2 Software and GUI
    2. 3.2 Testing and Results
      1. 3.2.1 Test Setup
      2. 3.2.2 Test Results
        1. 3.2.2.1 Use Case – Vehicle, Bicycle, Pedestrian Detection
        2. 3.2.2.2 Use Case – Traffic Cone, Grocery Cart, Sign Pole, Pipe, Shrub
        3. 3.2.2.3 Use Case – Pedestrian Standing in Empty Parking Space
        4. 3.2.2.4 Use Case – Pedestrian Standing Next to Car
        5. 3.2.2.5 Use Case – Empty Parking Space
        6. 3.2.2.6 Use Case – Cross Traffic Alert
        7. 3.2.2.7 Use Case – Parking Block, Curb Detection
  9. 4Design Files
    1. 4.1 Design Database
    2. 4.2 Schematic, Assembly, and BOM
  10. 5Software Files
  11. 6Related Documentation
    1. 6.1 Trademarks

2.2.1 AWR1843AOP Single-Chip Radar Solution

The AWR1843AOP device is an integrated single-chip FMCW radar sensor solution that simplifies the implementation of automotive radar sensors in the band of 76 to 81 GHz. It is built on TI’s low-power 45-nm RFCMOS process and enables unprecedented levels of integration in an extremely small form factor by integrating a wide FOV antenna-on-package. The AWR1843AOP is an ideal solution for low-power, self-monitored, ultra-accurate automotive radar systems.

There are several benefits of an antenna-on-package technology:

  • Small form factor: Antenna on the PCB takes up almost ~30% of the board space. With the antenna now integrated on the package, the size of the sensor reduces by ~30% compared to conventional sensors. This helps in easy vehicle integration.
  • Faster design cycle: Developer need not spend time on simulation and characterization of the antenna parameters.
  • Lower PCB cost: Low cost FR4 based PCB can be chosen for design instead of expensive roger’s material-based PCB

The AWR1843AOP has the following features:

  • AWR1843 radar device
  • Antenna-on-Package with three TX antennae and four RX antennae
  • Power management circuit, to provide all the required supply rails from a single 5-V input
  • Built-in calibration and self-test (monitoring):
    • ARM Cortex-R4F-based radio control system
    • Built-in firmware (ROM)
    • Self-calibrating system across frequency and temperature
    • On-chip memory: 2 MB RAM
GUID-20211028-SS0I-9TPW-CD6D-QC1ZVH2HHHF1-low.png Figure 2-3 AWR1843AOP Block Diagram

For more details on AWR1843AOP please see the product folder.