SNAU246A June   2020  – January 2021 LMX2820

 

  1. 1Trademarks
  2. 2LMX2820EVM Evaluation Module
    1. 2.1 Evaluation Module Contents
    2. 2.2 Evaluation Setup Requirement
    3. 2.3 Resources
  3. 3Setup
    1. 3.1 Connection Diagram
    2. 3.2 Power Supply
    3. 3.3 Reference Clock
    4. 3.4 RF Output
    5. 3.5 Programming
    6. 3.6 Evaluation Software
  4. 4Typical Measurement
    1. 4.1 Default Configuration
      1. 4.1.1 Loop Filter
      2. 4.1.2 Typical Output
    2. 4.2 Additional Tests
      1. 4.2.1 SYSREF Example
      2. 4.2.2 Offset Mixing With PFDIN Pin
      3. 4.2.3 External VCO Mode
      4. 4.2.4 Register Readback
  5. 5Schematic
  6. 6PCB Layout and Layer Stack-Up
    1. 6.1 PCB Layer Stack-Up
    2. 6.2 PCB Layout
  7. 7Bill of Materials
  8. 8Troubleshooting Guide
    1.     A Using Different Reference Clock
      1.      B USB2ANY Firmware Upgrade
        1.       C Revision History

B USB2ANY Firmware Upgrade

Usually when the USB2ANY module is used the first time, TICS Pro will request a firmware update. Follow the pop-up instructions to complete the update. This is necessary to ensure that the USB connection between the PC and the USB2ANY module is properly set up, otherwise the programming to LMX2820EVM will not be successful.

  1. When the USB2ANY Firmware Requirement pop-up window appears, click OK to continue.
    GUID-D650642F-E42E-4893-81A5-A60E3961E7B2-low.png Figure B-1 Firmware Requirement
  2. Next, follow the on-screen procedure shown in Figure B-2.
    GUID-7C1FC040-6920-4356-9C70-EE65148DDDE3-low.png Figure B-2 Firmware Loader
  3. If you do not know the location of the BSL button, click the Help me locate the BSL Button (S1) button to launch the USB2ANY BSL Button (S1) Location pop-up window.
    GUID-2E9DCFFE-D5FE-4DC1-9D9E-1B53D6781135-low.png Figure B-3 BSL Button
  4. Click OK to close out of the USB2ANY BSL Button (S1) Location pop-up window and return to the previous screen. Follow the on-screen procedure until the Update Firmware screen appears.
    GUID-B38EE12E-697D-4E4B-BEFA-5F18F9D94078-low.png Figure B-4 Update Firmware
  5. Click Upgrade Firmware to start the firmware upgrade. Click Close after the upgrade is complete.
    GUID-569D2F72-F5EC-4458-BB43-B62CE2338B34-low.png Figure B-5 Firmware Update Complete
  6. Go to USB communications → Interface in the TICS Pro software to check the USB connection. Make sure the USB Connected button is green.
    GUID-34970234-CD5B-43EC-8A7E-7803349F2683-low.png Figure B-6 USB Communications