SNAU270 February   2022 LMK1D1208I

 

  1.   Trademarks
  2. 1 Features
  3. 2 General Description
  4. 3 Signal Path and Control Circuitry
  5. 4 Getting Started
  6. 5 Power Supply Connection
  7. 6 Input Clock
    1. 6.1 Differential Input
    2. 6.2 Single-Ended Input
  8. 7 Output Clock
  9. 8 Using I2C
    1. 8.1 I2C Address Selection
  10. 9 EVM Board Schematic
  11. 10Bill of Materials
  12. 11REACH Compliance

8 Using I2C

The user can program the LMK1D1208I through the TICSPRO software (available for download on ti.com). This GUI allows the user to control the input enables, bank enable/mute controls, individual output enable, and individual output amplitude.

From the TICS Pro toolbar located at the top, click Select Device → Clock Distribution with Divider → LMK1D1208I to access the profile.

GUID-20211216-SS0I-N3DW-LS9C-D7M1M3XZ8H9T-low.pngFigure 8-1 Locate the LMK1D1208I Device Profile.

Using the same toolbar, click USB communications → Interface → USB2ANY to switch from DemoMode to I2C.

GUID-20211216-SS0I-VC3N-PQRQ-FGFVVLZGZPNN-low.pngGUID-20211216-SS0I-LLZQ-D5VS-FDDQR62JTMV5-low.pngFigure 8-2 Set to I2C Communication.

TI highly recommends that the user only modifies the registers available in the Main tab. Using the LMK1D1208I beyond logic states allowed in the GUI should be avoided to ensure performance and prevent device misuse.

GUID-20211216-SS0I-J8JZ-PDFR-QDXST0ZZ9XSC-low.pngFigure 8-3 LMK1D1208I GUI Main Page.