SNAU277A April   2022  – December 2022 LMK6C , LMK6D , LMK6H , LMK6P


  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Evaluation Module Contents
    2. 1.2 Evaluation Setup Requirement
    3. 1.3 Resources
  4. 2Setup
    1. 2.1 Connection Diagram
    2. 2.2 Power Supply
    3. 2.3 Clock Output
    4. 2.4 EVM Strap Options
      1. 2.4.1 J1 Header
      2. 2.4.2 J2 Header
      3. 2.4.3 J3 Header
      4. 2.4.4 J4 Header
      5. 2.4.5 J5 Header
      6. 2.4.6 J6 Header
    5. 2.5 Configuring the Clock Output Termination
  5. 3Typical Measurement
    1. 3.1 Phase Noise
  6. 4Schematic
  7. 5PCB Layout and Layer Stack-Up
    1. 5.1 PCB Layer Stack-Up
    2. 5.2 PCB Layout
  8. 6Bill of Materials
  9. 7Revision History


The LMK6EVM provides a complete evaluation platform to evaluate the clock performance and flexibility of the Texas Instruments LMK6x Ultra-Low Jitter BAW Oscillator family. This EVM can be used as a flexible clock source for compliance testing, performance evaluation, and initial system prototyping. The onboard edge-launch SMA ports provide access to the configurable clock output of the LMK6x, which allows the device to interface with test equipment and reference boards using commercially available coaxial cables, adapters, or baluns (not included).

The LMK6x is a lower-power clock oscillator using TI's BAW technology. The LMK6x is available in two package sizes, DLE (3.2 mm × 2.5 mm) and DLF (2.5 mm × 2.0 mm), and four different output formats: LVCMOS, LVPECL, LVDS, and HCSL. Both footprints are included on the EVM with independent termination networks. The termination scheme can be modified by the user for the desired output format. The LMK6EVM is not populated with an LMK6x device, so the user can choose the desired variant for evaluation.

GUID-20221209-SS0I-BRDB-PG2P-6QSFJSR3JXLD-low.pngFigure 1-1 LMK6EVM Evaluation Board.