ZHCSDJ6E February   2015  – June 2018 LMH1218

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      简化 SPI 电路原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Descriptions – SPI Mode/ Mode_SEL = 1 kΩ to VDD
    2.     Pin Descriptions – SMBUS Mode/ MODE_SEL = 1 kΩ to GND
  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 Recommended SMBus Interface AC Timing Specifications
    7. 6.7 Serial Parallel Interface (SPI) Bus Interface AC Timing Specifications
    8. 6.8 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 Loss of Signal Detector
      2. 7.3.2 Continuous Time Linear Equalizer (CTLE)
      3. 7.3.3 2:1 Multiplexer
      4. 7.3.4 Clock and Data Recovery
      5. 7.3.5 Eye Opening Monitor (EOM)
      6. 7.3.6 Fast EOM
        1. 7.3.6.1 SMBus Fast EOM Operation
        2. 7.3.6.2 SPI Fast EOM Operation
      7. 7.3.7 LMH1218 Device Configuration
        1. 7.3.7.1 MODE_SEL
        2. 7.3.7.2 ENABLE
        3. 7.3.7.3 LOS_INT_N
        4. 7.3.7.4 LOCK
        5. 7.3.7.5 SMBus MODE
        6. 7.3.7.6 SMBus READ/WRITE Transaction
        7. 7.3.7.7 SPI Mode
          1. 7.3.7.7.1 SPI READ/WRITE Transaction
          2. 7.3.7.7.2 SPI Write Transaction Format
          3. 7.3.7.7.3 SPI Read Transaction Format
        8. 7.3.7.8 SPI Daisy Chain
          1. 7.3.7.8.1 SPI Daisy Chain Write Example
          2. 7.3.7.8.2 SPI Daisy Chain Write Read Example
            1. 7.3.7.8.2.1 SPI Daisy Chain Length of Daisy Chain Illustration
      8. 7.3.8 Power-On Reset
    4. 7.4 Device Functional Modes
    5. 7.5 Programming
    6. 7.6 Register Maps
      1. 7.6.1 Global Registers
      2. 7.6.2 Receiver Registers
      3. 7.6.3 CDR Registers
      4. 7.6.4 Transmitter Registers
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 General Guidance for All Applications
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
    3. 8.3 Do's and Don'ts
    4. 8.4 Initialization Set Up
      1. 8.4.1 Selective Data Rate Lock
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
    3. 10.3 Solder Profile
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 接收文档更新通知
    4. 11.4 社区资源
    5. 11.5 商标
    6. 11.6 静电放电警告
    7. 11.7 术语表
  12. 12机械、封装和可订购信息

8.2.3 Application Curves

Figure 25 and Figure 27 depict the differential output eye diagrams for OUT1 at 10.3125 Gbps and 11.88 Gbps. Figure 26 depicts the single-end eye diagram for OUT0 at 11.88 Gbps. Measurements were done at default operating conditions.

LMH1218 10p3125G_OUT1_Diff.png
Figure 25. 10.3125 Gbps 50 Ω OUT1
LMH1218 11p88_OUT1.png
Figure 27. 11.88 Gbps 50 Ω OUT1
LMH1218 11p88_OUT0.png
Figure 26. 11.88 Gbps 75 Ω OUT0
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