TIDUFC3 January   2025

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6.   6
  7. 1System Description
    1. 1.1 Key System Specifications
  8. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Power Topology
      2. 2.2.2 PCB and Form Factor
      3. 2.2.3 Antenna
    3. 2.3 Highlighted Products
      1. 2.3.1 AWRL6432BGAMFQ1
      2. 2.3.2 TCAN3404DDFRQ1
      3. 2.3.3 TPS65036x-Q1
  9. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
      1. 3.1.1 Getting Started With Hardware
        1. 3.1.1.1 Power Up Option
      2. 3.1.2 Sense-on-Power (SOP)
      3. 3.1.3 AWRL6432 Initialization: Board Programming
    2. 3.2 Test Setup
    3. 3.3 Test Results
  10. 4Design and Documentation Support
    1. 4.1 Design Files
      1. 4.1.1 Schematics
      2. 4.1.2 BOM
      3. 4.1.3 Layout Prints
      4. 4.1.4 Altium Project
      5. 4.1.5 Gerber Files
    2. 4.2 Tools and Software
    3. 4.3 Documentation Support
    4. 4.4 Support Resources
    5. 4.5 Trademarks
  11. 5About the Author

2.2 Design Considerations

This design is made to provide customers with a ready-to-use, small form-factor mmWave in-cabin radar sensor with a cost-optimized bill of materials. In this design, the AWRL6432 device powered by PMIC rails (3.3V, 1.8V, and 1.2V) eliminates the need for multiple DC-DC converters and enables the design to have an extremely small form factor. The antennas designed for this board are capable of providing 120°(Azimuth) × 120°(Elevation) field-of-view, 3.5GHz bandwidth and 6- to 7dBi peak gain with the high-performance Rogers® RO3003® material. This reference design also utilizes TI’s low-cost, small form-factor, low-power Derby PMIC and CAN PHY. The onboard connectors (J1, J2, and J3) have various communication peripherals (UART, RS232, SPI, CAN, LIN, JTAG, I2C, GPIOs), SOPs, PWR, and GND being brought out, including a dedicated 10-pin connector (J1) for direct connection with LP-XDS110 which enables the ease of operation of the board. The onboard connectors used in the design have 1.27mm pitch, which also helps reduce the overall form factor of the board.