SWRU630A December   2024  – November 2025

 

  1.   1
  2.   Description
  3.   Getting Started
  4.   Features
  5. 1xWRL6844EVM Revision history
  6. 2Evaluation Module Overview
    1. 2.1 Introduction
    2. 2.2 Key Features
    3. 2.3 Kit Contents
    4. 2.4 Specification
    5. 2.5 Device Information
  7. 3Hardware
    1. 3.1  xWRL6844EVM Antenna
      1. 3.1.1 PCB Material
        1. 3.1.1.1 Transmitter and Receiver Virtual Array
        2. 3.1.1.2 Phase summary of xWRL6844 Device + Antenna combined
    2. 3.2  EVM Mux Block Diagram
    3. 3.3  Switch Settings
    4. 3.4  Push Button Switches
    5. 3.5  LEDs
    6. 3.6  DC Input Jack
    7. 3.7  USB Connector
    8. 3.8  DCA1000 HD Connector
    9. 3.9  BoosterPack Connector for LaunchPad Connectivity
    10. 3.10 CAN-FD_B Connector
    11. 3.11 CAN-FD_A Connector
    12. 3.12 LIN-PHY Connector
    13. 3.13 I2C Connections
      1. 3.13.1 EEPROM
    14. 3.14 XDS110 Interface
    15. 3.15 FTDI Interface
    16. 3.16 DCA1000EVM Mode
    17. 3.17 PCB Storage and Handling Recommendations:
      1. 3.17.1 PCB Storage and Handling Recommendations
      2. 3.17.2 Higher Power Demanding Applications
  8. 4Software, Development Tools, and Example Code
    1. 4.1 Low Power mode implementation
  9. 5Hardware Design Files
    1. 5.1 Schematics, PCB Layout and Bill of Materials (BOM)
    2. 5.2 EVM Design Database
    3. 5.3 Hardware Design Checklist
  10. 6Additional Information
    1. 6.1 Trademarks
  11. 7References
    1. 7.1 TI E2E Community
  12. 8Revision History

3.12 LIN-PHY Connector

Figure 3-24 shows the LIN PHY (TLIN1039DDFRQ1) interface to the device. LIN PHY can operate with a different supply voltage than the mmWave sensor, an external VBAT option is provided for the LIN VDD supply, by default VSYS_IN supply is provided for J4 connector.

AWRL6844EVM IWRL6844EVM LIN Connector Figure 3-24 LIN Connector

AWRL6844EVM IWRL6844EVM Analog Mux for the LIN PHY Switch Figure 3-25 Analog Mux for the LIN PHY Switch

AWRL6844EVM IWRL6844EVM LIN PHY Interface Figure 3-26 LIN PHY Interface

To enable the external VBAT supply, resistor R32 needs to be mounted and resistor R31 needs to be removed.