SNAS579G March   2012  – December 2014 LMK00105

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Functional Block Diagram
  4. 4 Revision History
  5. 5 Pin Configuration and Diagrams
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Vdd and Vddo Power Supplies
      2. 7.3.2 Clock Input
        1. 7.3.2.1 Selection of Clock Input
          1. 7.3.2.1.1 CLKin/CLKin* Pins
          2. 7.3.2.1.2 OSCin/OSCout Pins
      3. 7.3.3 Clock Outputs
        1. 7.3.3.1 Output Enable Pin
        2. 7.3.3.2 Using Less than Five Outputs
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Clock Inputs
      2. 8.1.2 Clock Outputs
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Application Block Diagram
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Crystal Interface
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Power Supply Filtering
    2. 9.2 Power Supply Ripple Rejection
    3. 9.3 Power Supply Bypassing
  10. 10Layout
    1. 10.1 Layout Guidelines
      1. 10.1.1 Ground Planes
      2. 10.1.2 Power Supply Pins
      3. 10.1.3 Differential Input Termination
      4. 10.1.4 Output Termination
    2. 10.2 Layout Example
    3. 10.3 Thermal Management
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Differential Voltage Measurement Terminology
    2. 11.2 Trademarks
    3. 11.3 Electrostatic Discharge Caution
    4. 11.4 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • RTW|24
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.3.2.1.1 CLKin/CLKin* Pins

The LMK00105 has a differential input (CKLin/CLKin*) which can be driven single-ended or differentially. It can accept AC or DC coupled 3.3V/2.5V LVPECL, LVDS, or other differential and single ended signals that meet the input requirements in Electrical Characteristics and when using differential signals with VCM outside of the acceptable range for the specified VID, the clock must be AC coupled. Refer to Clock Inputs for more details on driving the LMK00105 inputs.

In the event that a Crystal mode is not selected and the CLKin pins do not have an AC signal applied to them, Table 2 following will be the state of the outputs.

Table 2. CLKin Input vs. Output States

CLKin CLKin* Output State
Open Open Logic Low
Logic Low Logic Low Logic Low
Logic High Logic Low Logic High
Logic Low Logic High Logic Low