SLVSIP6 June   2026 LMK6L-Q1

ADVMIX  

  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 Environmental Compliance
    4. 6.4 Recommended Operating Conditions
    5. 6.5 Thermal Information
    6. 6.6 Electrical Characteristics
    7. 6.7 Timing Diagrams
    8. 6.8 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
        1. 8.3.3.1 FSEL Implementation
      4. 8.3.4 Output Terminations
        1. 8.3.4.1 Replacing a LVPECL oscillator with the LMK6L-Q1
        2. 8.3.4.2 Replacing a HCSL OSC With the LMK6L-Q1
      5. 8.3.5 Wettable Flanks
    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
        1. 9.2.3.1 LVDS Phase Noise Curves
        2. 9.2.3.2 HS-LVDS 1.2Vppd Phase Noise Curves
        3. 9.2.3.3 AC-LVPECL 1.2Vppd Phase Noise Curves
        4. 9.2.3.4 LP-HCSL Phase Noise 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 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
    1. 12.1 Mechanical Data

8.3.4 Output Terminations

The LMK6L-Q1 has different output types: AC-LVPECL, LVDS, HS-LVDS, and LP-HCSL. HS-LVDS and AC-LVPECL are part of the multi-mode driver and have different swing options. LP-HCSL output type has different VOH options. For more information refer to Section 4.

The multi-mode driver can create an output with a common mode of VDD/2 or 1.2V and a customizable swing from 700mVppd to 2Vppd in 100mVppd steps. For AC-LVPECL, the VCM = VDD/2 and the swing can be set from 700mVppd to 2Vppd for 3.3V supply and 700mVppd to 1.5Vppd for 2.5V supply. The multi-mode driver can also generate an LVDS or HS-LVDS output, which has a 1.2V common mode and a customizable swing from 700mVppd to 2Vppd for a 3.3V supply and 700mVppd to 1.6Vppd for a 2.5V supply. At a 1250MHz output, the maximum swing possible is 1.5Vppd for both 2.5V and 3.3V supply. By default, the LVDS driver comes with a 800mVppd typical swing.

Termination schemes for AC-LVPECL, LVDS, and HS-LVDS are shown in Figure 8-2.

LMK6L-Q1 AC-LVPECL, LVDS, and HS-LVDS Output Terminations Figure 8-2 AC-LVPECL, LVDS, and HS-LVDS Output Terminations

No changes are required to replace an LVDS oscillator with the LMK6L-Q1. If replacing an LVDS oscillator for an AC-coupled applications and maximum performance is required, use the AC-LVPECL output type. Better performance is achieved with a higher swing, so order the highest swing the receiver can handle. No changes are required when replacing an LVDS oscillator with the AC-LVPECL driver for AC-coupled applications. To replace an LVPECL oscillator refer to Section 8.3.4.1.

The LP-HCSL output driver can have a VOH of 850mV or 750mV typical. No external termination is required as shown in Figure 8-3.

LMK6L-Q1 LP-HCSL Output Termination Figure 8-3 LP-HCSL Output Termination

No changes are required to replace a LP-HCSL oscillator with the LMK6L-Q1. To replace a HCSL oscillator with the LMK6L-Q1, refer to Section 8.3.4.2.