SNAS826E April   2022  – April 2024 LMK6C , LMK6D , LMK6H , LMK6P

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Ordering Information
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Environmental Compliance
    4. 6.4 Recommended Operating Conditions
    5. 6.5 Thermal Information
    6. 6.6 Thermal Information
    7. 6.7 Electrical Characteristics
    8. 6.8 Timing Diagrams
    9. 6.9 Typical Characteristics
  8. 7 Parameter Measurement Information
    1. 7.1 Device Output Configurations
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Bulk Acoustic Wave (BAW)
      2. 8.3.2 Device Block-Level Description
      3. 8.3.3 Function Pins
      4. 8.3.4 Clock Output Interfacing and Termination
      5. 8.3.5 Temperature Stability
      6. 8.3.6 Mechanical Robustness
    4. 8.4 Device Functional Modes
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
        1. 9.4.1.1 Providing Thermal Reliability
        2. 9.4.1.2 Recommended Solder Reflow Profile
      2. 9.4.2 Layout
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

9.4.1.1 Providing Thermal Reliability

The LMK6x is a high-performance device. Therefore, pay careful attention to device configuration and printed circuit board (PCB) layout with respect to power consumption. The ground pin must be connected to the ground plane of the PCB through three vias or more to maximize thermal dissipation out of the package.

Equation 1 describes the relationship between the PCB temperature around the LMK6x and the junction temperature.

Equation 1. TB = TJ – ΨJB × P

where

  • TB: PCB temperature around the LMK6x
  • TJ: Junction temperature of LMK6x
  • ΨJB: Junction-to-board thermal resistance parameter of LMK6x (refer to the Thermal Information tables in the Specifications section for this information)
  • P: On-chip power dissipation of LMK6x