ZHCSCZ5E December   2013  – January 2022 LMK00334

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and 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 Timing Requirements, Propagation Delay, and Output Skew
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Differential Voltage Measurement Terminology
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Crystal Power Dissipation vs. RLIM
      2. 8.3.2 Clock Inputs
      3. 8.3.3 Clock Outputs
        1. 8.3.3.1 Reference Output
    4. 8.4 Device Functional Modes
      1. 8.4.1 VCC and VCCO Power Supplies
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 Driving the Clock Inputs
        2. 9.2.1.2 Crystal Interface
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Termination and Use of Clock Drivers
        2. 9.2.2.2 Termination for DC-Coupled Differential Operation
        3. 9.2.2.3 Termination for AC-Coupled Differential Operation
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
    1. 10.1 Current Consumption and Power Dissipation Calculations
      1. 10.1.1 Power Dissipation Example: Worst-Case Dissipation
    2. 10.2 Power Supply Bypassing
      1. 10.2.1 Power Supply Ripple Rejection
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
    3. 11.3 Thermal Management
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 接收文档更新通知
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 术语表
  13. 13Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
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订购信息

3 说明

LMK00334 器件是一款 4 路输出 HCSL 扇出缓冲器，旨在用于高频、低抖动时钟、数据分配和电平转换。它能够为 ADC、DAC、多千兆以太网、XAUI、光纤通道、SATA/SAS、SONET/SDH、CPRI 和高频背板分配参考时钟。

可从两个通用输入或一个晶振输入中选择输入时钟。所选择的输入时钟被分配到由两个 HCSL 输出和一个 LVCMOS 输出组成的两个组。LVCMOS 输出具有同步使能输入，在使能或禁用后可实现无短脉冲运行。LMK00334 由一个 3.3V 内核电源和三个独立的 3.3V 或 2.5V 输出电源供电运行。

LMK00334 具有高性能、多用途和高功效特性，因此堪称替代固定输出缓冲器器件的理想选择，同时还能增加系统中的时序余裕。

器件信息(1)
器件型号封装封装尺寸（标称值）
LMK00334WQFN (32)5.00mm × 5.00mm
(1) 如需了解所有可用封装，请参阅数据表末尾的可订购产品附录。
GUID-6CB5C03A-3A34-4866-9217-CF4B09294208-low.gifLMK00334 功能框图