SNAU309 October   2025

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 EVM Quick Start
      1. 2.1.1 Hardware Setup
      2. 2.1.2 Software Setup
    2. 2.2 EVM Configuration
      1. 2.2.1 Device Operational Modes
      2. 2.2.2 Power Supply
      3. 2.2.3 Logic Inputs and Outputs
      4. 2.2.4 Configuring the Clock Outputs
      5. 2.2.5 Using the USB Interface Connection
  8. 3Software
    1. 3.1 Software Installation
    2. 3.2 Software Description
      1. 3.2.1 User Controls Page
      2. 3.2.2 Raw Registers Page
      3. 3.2.3 Global Settings Page
      4. 3.2.4 EFUSE Pages Page
      5. 3.2.5 GPIO Page
      6. 3.2.6 FODs Page
      7. 3.2.7 Inputs Page
      8. 3.2.8 OUT0 Page
      9. 3.2.9 OUT1 & OUT2 Page
  9. 4Implementation Results
    1. 4.1 Evaluation Setup
    2. 4.2 Performance Data and Results
  10. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  11. 6Additional Information
    1. 6.1 Trademarks
  12. 7Related Documentation
    1. 7.1 Supplemental Content

Description

The LMK3H2108 Evaluation Module (LMK3H2108EVM) provides a complete clocking platform to evaluate the clock performance, pin configuration, software configuration, and features of the Texas Instruments LMK3H2108 Clock Generator with integrated BAW-based oscillator. The LMK3H2108 is an eight-output clock generator with an integrated BAW resonator and fractional output dividers, eliminating the need for an external reference clock. The LMK3H2108 accepts up to three input clocks, functioning as a buffer with dividers, or as an I2C clock multiplexer. The EVM includes SMA connectors for all clock outputs for interfacing with 50Ω test equipment. The EVM can be configured through the onboard USB microcontroller (USB2ANY) using a PC with TI's TICS Pro 2 software. TICS Pro 2 can be used to program the LMK3H2108 registers for live configurations. The LMK3H2108 device has a preprogrammed startup configuration that cannot be overwritten.