SNAU283 October   2022

 

  1.   Abstract
  2.   Trademarks
  3. 1Evaluation Board Kit Contents
  4. 2Quick Start
    1. 2.1 Quick Start Description
      1. 2.1.1 Clock Outputs Page Description
      2. 2.1.2 TICS Pro Tips
  5. 3PLL Loop Filters and Loop Parameters
    1. 3.1 PLL1 Loop Filter
    2. 3.2 PLL2 Loop Filter
  6. 4Default TICS Pro Mode
  7. 5Using TICS Pro to Program the LMK04368-EP
    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
  8. 6Evaluation Board Inputs and Outputs
  9. 7Recommended Test Equipment
  10. 8Schematics
  11. 9Bill of Materials
  12.   A USB2ANY Firmware Upgrade
  13.   B TICS Pro Usage
    1. 11.1  Communication Setup
    2. 11.2  User Controls
    3. 11.3  Raw Registers Page
    4. 11.4  Set Modes Page
    5. 11.5  Holdover Page
    6. 11.6  CLKinX Control Page
    7. 11.7  PLL1 and 2 Page
    8. 11.8  SYNC / SYSREF Page
    9. 11.9  Clock Outputs Page
    10. 11.10 Other Page
    11. 11.11 Burst Mode Page

2.1 Quick Start Description

The LMK04368EP EVM 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 2-1.

  1. Connect a voltage of 4.5 V to the VCC SMA connector or terminal block. The LMK04368-EP and onboard VCXO operate at 3.3 V provided by the onboard TPS7A4701-EP LDO and LP5900 LDO, respectively.
  2. Connect a reference clock to the CLKin1* port from a signal generator or other source. Use 122.88 MHz for the default configuration.
  3. Connect a USB Cable A Plug to Micro B Plug cable to a PC and the USB connector (J45) at EVM.
  4. Program the device with TICS Pro. TICS Pro is available for download at: http://www.ti.com/tool/ticspro-sw.
    1. Select LMK04368-EP 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. Click Identify to confirm that the PC to USB communication is working. 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. Press Ctrl+L 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 (see Section 11.3).
  5. Measurements may be made at an active CLKout port through the SMA connector.