SNAS822C September   2021  – February 2026 LMK1D2102 , LMK1D2104

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 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 Thermal Information
    6. 6.6 Electrical Characteristics
    7. 6.7 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Fail-Safe Inputs
    4. 8.4 Device Functional Modes
      1. 8.4.1 LVDS Output Termination
      2. 8.4.2 Input Termination
  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
      2. 9.4.2 Layout Example
  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

9.2.3 Application Curves

The low additive noise of the LMK1D2104 is shown in the following curves. The low noise 156.25MHz source with 24fs RMS jitter shown in Figure 9-3 drives the LMK1D2104, resulting in 46.4fs RMS when integrated from 12kHz to 20MHz (Figure 9-4). The resultant additive jitter is a low 39.7fs RMS for this configuration. Note that this result applies to the LMK1D2102 device as well.

LMK1D2102 LMK1D2104 LMK1D2104 Reference Phase Noise, 156.25MHz, 24fs RMS (12kHz to 20MHz)
A.
Reference signal is low-noise Rohde and Schwarz SMA100B
Figure 9-3 LMK1D2104 Reference Phase Noise, 156.25MHz, 24fs RMS (12kHz to 20MHz)
LMK1D2102 LMK1D2104 LMK1D2104 Output Phase Noise, 156.25MHz, 46.4fs RMS (12kHz to 20MHz)Figure 9-4 LMK1D2104 Output Phase Noise, 156.25MHz, 46.4fs RMS (12kHz to 20MHz)

The Figure 9-5 captures the low close-in phase noise of the LMK1D2104 device. The LMK1D2102 and LMK1D2104 have excellent flicker noise as a result of process technology and design. This enables the use for clock distribution in radar systems, medical imaging systems and more which require ultra-low close-in phase noise clocks.

LMK1D2102 LMK1D2104 LMK1D2104 Output Phase Noise, 100MHz, 1kHz offset: -147dBc/HzFigure 9-5 LMK1D2104 Output Phase Noise, 100MHz, 1kHz offset: -147dBc/Hz