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

2.1 Quick Start Description

The LMK04832EVM-CVAL allows full verification of the device functionality and performance specifications. To quickly set up and operate the board with basic equipment, refer to the quick start procedure below and test setup shown in Figure 1.

  1. Connect a voltage of 4.5 volts to the VCC SMA connector or terminal block. The LMK04832-SP and on-board VCXO operate at 3.3 V provided by the onboard TPS7A4501-SP LDO.
  2. Connect a reference clock to the CLKin1* port from a signal generator or other source. Use 122.88 MHz for default configuration.
  3. Connect USB2ANY to a PC and the EVM.
  4. Program the device with TICS Pro. TICS Pro is available for download at: http://www.ti.com/tool/ticspro-sw.
    1. Select LMK04832-SP from the Select Device Menu. Click Select Device → Clock Generator/Jitter Cleaner (Dual Loop).
    2. Select USB2ANY mode from the Communication Setup window. To access this, select USB communications → Interface. Confirm that the PC to USB communication is working by clicking on Identify. A blinking green LED on the USB2ANY indicates the PC is able to communicate through the USB2ANY.
    3. Select a default mode from the Default configuration Menu. For the quick start use, CLKin1 122.88 MHz, OSCin 122.88 MHz, VCO1 2949.12 MHz.
    4. Ctrl+L must be pressed at least once to load all registers. Alternatively, click the USB communications → Write All Registers menu, the Write All Registers button on toolbar, or the Raw Registers page shown in Section A.3.
  5. Measurements may be made at an active CLKout port through the SMA connector.