ZHCSKE4C october   2016  – december 2020 DS280MB810

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Description (continued)
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements – Serial Management Bus Interface
    7. 7.7 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Device Data Path Operation
      2. 8.3.2 AC-coupled Receiver Inputs
      3. 8.3.3 Signal Detect
      4. 8.3.4 2-Stage CTLE
      5. 8.3.5 Driver DC Gain Control
      6. 8.3.6 2x2 Cross-point Switch
      7. 8.3.7 Configurable SMBus Address
    4. 8.4 Device Functional Modes
      1. 8.4.1 SMBus Slave Mode Configuration
      2. 8.4.2 SMBus Master Mode Configuration (EEPROM Self Load)
    5. 8.5 Programming
      1. 8.5.1 Transfer of Data with the SMBus Interface
    6. 8.6 Register Maps
      1. 8.6.1 Register Types: Global, Shared, and Channel
      2. 8.6.2 Global Registers: Channel Selection and ID Information
      3. 8.6.3 Shared Registers
      4. 8.6.4 Channel Registers
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Backplane and Mid-Plane Reach Extension
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
      2. 9.2.2 Front-Port Applications
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
        1. 9.2.3.1 Pattern Generator Characteristics
        2. 9.2.3.2 Equalizing Moderate Pre-Channel Loss
        3. 9.2.3.3 Equalizing High Pre-Channel Loss
        4. 9.2.3.4 Equalizing High Pre-Channel Loss and Moderate Post-Channel Loss
    3. 9.3 Initialization Set Up
  11. 10Power Supply Recommendations
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Examples
      1. 11.2.1 Stripline Example
      2. 11.2.2 Microstrip Example
  13. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
  14. 13Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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订购信息

7.6 Timing Requirements – Serial Management Bus Interface

Over operating free-air temperature range (unless otherwise noted).
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
RECOMMENDED SMBus SWITCHING CHARACTERISTICS (SMBus SLAVE MODE)
fSDCSDC clock frequencyEN_SMB = 1k to VDD (Slave Mode)10100400kHz
TSDA-HDData hold time0.75ns
TSDA-SUData setup time100ns
TSDA-RSDA rise time, read operationPull-up resistor = 1 kΩ, Cb = 50 pF150ns
TSDA-FSDA fall time, read operationPull-up resistor = 1 kΩ, Cb = 50 pF4.5ns
SMBus SWITCHING CHARACTERISTICS (SMBus MASTER MODE)
fSDCSDC clock frequencyEN_SMB = Float (Master Mode)260303346kHz
TSDC-LOWSDC low period1.661.902.21µs
TSDC-HIGHSDC high period1.221.401.63µs
THD-STARTHold time start operation0.6µs
TSU-STARTSetup time start operation0.6µs
TSDA-HDData hold time0.9µs
TSDA-SUData setup time0.1µs
TSU-STOPStop condition setup time0.6µs
TBUFBus free time between Stop-Start1.3µs
TSDC-RSDC rise timePull-up resistor = 1 kΩ300ns
TSDC-FSDC fall timePull-up resistor = 1 kΩ300ns
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