SNAU252 June   2020 LMK04832-SP

 

  1.   LMK04832EVM-CVAL User’s Guide
    1.     Trademarks
    2. 1  Evaluation Board Kit Contents
    3. 2  Quick Start
      1. 2.1 Quick Start Description
        1. 2.1.1 Clock Outputs Page Description
        2. 2.1.2 TICS Pro Tips
    4. 3  PLL Loop Filters and Loop Parameters
      1. 3.1 PLL1 Loop Filter
      2. 3.2 PLL2 Loop Filter
    5. 4  Default TICS Pro Mode
    6. 5  Using TICS Pro to Program the LMK04832-SP
      1. 5.1 Start TICS Pro Application
      2. 5.2 Select Device
      3. 5.3 Program the Device
      4. 5.4 Restoring a Default Mode
      5. 5.5 Visual Confirmation of Frequency Lock
      6. 5.6 Enable Clock Outputs
    7. 6  Evaluation Board Inputs and Outputs
    8. 7  Recommended Test Equipment
    9. 8  Length Matching
    10. 9  Schematics
    11. 10 Bill of Materials
  2.   A TICS Pro Usage
    1.     A.1 Communication Setup
    2.     A.2 User Controls
    3.     A.3 Raw Registers Page
    4.     A.4 Set Modes Page
    5.     A.5 Holdover Page
    6.     A.6 CLKinX Control Page
    7.     A.7 PLL1 and 2 Page
    8.     A.8 SYNC / SYSREF Page
    9.     A.9 Clock Outputs Page
    10.     A.10 Other Page
    11.     A.11 Current Calculator Page
    12.     A.12 Burst Page

A.7 PLL1 and 2 Page

The PLL1 and PLL2 page shows the frequencies that the PLL1 and PLL2 operate at. In distribution mode, the CLKin1 frequency will directly be connected to the VCO/clock distribution path frequency. In addition to the basic PLL dividers and controls, when the PLLX_NCLK_MUX selects the feedback mux as a source, 0-delay modes are achieved. When enabling 0-delay red text will help guide the user through properly setting up 0-delay mode.

When using dual PLL mode, the OSCin Source combo box can be set to External VCXO which links the OSCin frequency with the external VCXO frequency. When using single PLL2 mode, the OSCin Source combo box can be set to Independent to allow the OSCin frequency to be unlinked from the external VCXO frequency.

PLL_page_snau252.gifFigure 19. TICS Pro - PLL1 and 2 Page