SNAS889 March   2026 LMK6B

ADVANCE INFORMATION  

  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 Features 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 Output Terminations
    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 Clocking TI Clock Buffers with the LMK6Bx
      4. 9.2.4 Application Curves
        1. 9.2.4.1 LVDS Phase Noise Curves
        2. 9.2.4.2 AC-LVPECL Phase Noise Curves
        3. 9.2.4.3 LP-HCSL Phase Noise Curves
    3. 9.3 Replacing Competitor Oscillators with the LMK6Bx
      1. 9.3.1 Replacing a LVPECL oscillator with the LMK6Bx
      2. 9.3.2 Replacing a HCSL OSC With the LMK6Bx
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
        1. 9.5.1.1 Providing Thermal Reliability
        2. 9.5.1.2 Recommended Solder Reflow Profile
      2. 9.5.2 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
    2. 12.2 Tape and Reel Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)

8.3.3 Function Pins

Pins 1 and 2 on the LMK6Bx serve multiple functions as defined by the OPN (refer to Section 4 for more information). Configurations include Output Enable (OE) and Stand By (ST) on pin 1, and Output Frequency Select (FSEL) on pin 2. FSEL divides the frequency defined in the OPN by 2 or 4, providing 3 different frequencies from one OPN. FSEL is further described in Table 8-1. OE and ST are Active High by default. Contact TI for Active Low options.

Pin 1 is driven internally with a 150kΩ pullup resistor. Pin 2 is driven internally with a 200kΩ pullup and 200kΩ pulldown resistors. Both pin 1 and 2 can have a external pullup or pulldown resistor between 0Ω to 10kΩ each.

Table 8-1 Function Pin Descriptions for LMK6Bx
ORDERABLE OPTION PIN NO. PIN DESCRIPTION OUTPUT FUNCTION
E Pin 1 Output Enable (Active High) or No Connect HIGH or No Connect : Output active at specified frequency
LOW : Output disabled, high impedance; current consumption is given by IDD-OD
Pin 2 No Connect N/A
A Pin 1 Standby (Active Low) or No Connect HIGH or No Connect: Output active at specified frequency
LOW : High Impedance; standby mode; current consumption is given by standby current IDD-STBY
Pin 2 No Connect N/A
K Pin 1 Output Enable (Active High) or No Connect HIGH or No Connect: Output active at specified frequency
LOW : Output disabled, high impedance; current consumption is given by IDD-OD
Pin 2 FSEL(1) HIGH: Output active at FOUT/2
FLOATING: Output active at FOUT
LOW : Output active at FOUT/4
L Pin 1 Standby (Active Low) or No Connect HIGH or No Connect: Output active at specified frequency
LOW : High Impedance; standby mode; current consumption is given by standby current IDD-STBY
Pin 2 FSEL(1) HIGH: Output active at FOUT/2
FLOATING: Output active at FOUT
LOW : Output active at FOUT/4
(1) FOUT is the output frequency defined in the OPN (refer to Section 4).

In standby mode, all blocks are powered down to provide a maximum current consumption savings equivalent to the standby current provided in the Current Consumption Characteristics portion of Electrical Characteristics. The return time to the active output clock, or tST-EN corresponds to the same as the initial start-up time, or tSTART_UP.