TIDUF96 October   2024

 

  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 AWRL1432BGAMFQ1
      2. 2.3.2 TPS628502-Q1
      3. 2.3.3 LMR43620-Q1
      4. 2.3.4 TLIN1021A-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 Primary Power Up Option
          1. 3.1.1.1.1 Making the Connections in Primary Power Up Option
        2. 3.1.1.2 Secondary Power Up Option
          1. 3.1.1.2.1 Making the Connections in Secondary Power Up Option
        3. 3.1.1.3 Sense-on-Power (SOP)
        4. 3.1.1.4 AWRL1432 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 Authors

2.2 Design Considerations

This design is made to provide customers with a ready-to-use, small form-factor mmWave Kick-to-Open radar sensor with a highly cost optimized Bill of Materials. In this design, the AWRL1432 device powered by these two rails (3.3V and 1.8V) eliminates the need for an additional DC/DC converter to generate 1.2V externally and enables the design to have an extremely small form factor.

The antennas designed for this board are capable of providing 120°(Azimuth) x 90°(Elevation) Field-of-View and 4dBi peak gain with low-cost Isola® FR408HR material. This reference design also utilizes TI’s low-cost, small form-factor, high-performance DC/DC converters and LIN 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.