SNLS538B September   2016  – February 2024 DS280DF810

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings
    3. 5.3  Recommended Operating Conditions
    4. 5.4  Thermal Information
    5. 5.5  Electrical Characteristics
    6. 5.6  Timing Requirements, Retimer Jitter Specifications
    7. 5.7  Timing Requirements, Retimer Specifications
    8. 5.8  Timing Requirements, Recommended Calibration Clock Specifications
    9. 5.9  Recommended SMBus Switching Characteristics (Target Mode)
    10. 5.10 Recommended SMBus Switching Characteristics (Controller Mode)
    11. 5.11 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Device Data Path Operation
        1. 6.3.1.1 AC-Coupled Receiver and Transmitter
        2. 6.3.1.2 Signal Detect
        3. 6.3.1.3 Continuous Time Linear Equalizer (CTLE)
        4. 6.3.1.4 Variable Gain Amplifier (VGA)
        5. 6.3.1.5 2x2 Cross-Point Switch
        6. 6.3.1.6 Decision Feedback Equalizer (DFE)
        7. 6.3.1.7 Clock and Data Recovery (CDR)
        8. 6.3.1.8 Calibration Clock
        9. 6.3.1.9 Differential Driver with FIR Filter
          1. 6.3.1.9.1 Setting the Output VOD, Pre-Cursor, and Post-Cursor Equalization
          2. 6.3.1.9.2 Output Driver Polarity Inversion
      2. 6.3.2 Debug Features
        1. 6.3.2.1 Pattern Generator
        2. 6.3.2.2 Pattern Checker
        3. 6.3.2.3 Eye Opening Monitor
        4. 6.3.2.4 Interrupt Signals
    4. 6.4 Device Functional Modes
      1. 6.4.1 Supported Data Rates
      2. 6.4.2 SMBus Controller Mode
      3. 6.4.3 42
      4. 6.4.4 Device SMBus Address
    5. 6.5 Programming
      1. 6.5.1 Bit Fields in the Register Set
      2. 6.5.2 Writing to and Reading from the Global/Shared/Channel Registers
    6. 6.6 Register Maps
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Backplane and Mid-Plane Reach Extension Application
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
      2. 7.2.2 Front-Port Jitter Cleaning Application
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 Documentation Support
      1. 8.1.1 Related Documentation
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Support Resources
    4. 8.4 Trademarks
    5. 8.5 Electrostatic Discharge Caution
    6. 8.6 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • ABW|135
  • ABV|135
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.2.1 Backplane and Mid-Plane Reach Extension Application

The DS280DF810 has strong equalization capabilities that allow it to recover data over channels up to 35dB insertion loss (at 12.9GHz). As a result, the optimum placement for the DS280DF810 in a backplane and mid-plane application is with the higher-loss channel segment at the input and the lower-loss channel segment at the output. This reduces the equalization burden on the downstream ASIC/FPGA, as the DS280DF810 is equalizing a majority of the overall channel. This type of asymmetric placement is not a requirement, but when an asymmetric placement is required due to the presence of a passive backplane or mid-plane, then this becomes the recommended placement.

GUID-E5995865-9367-43AB-BE01-EB1839E8273E-low.gifFigure 7-2 Backplane and Mid-Plane Application Block Diagram
GUID-75AA6E05-1C1B-42C1-B724-2734DE193483-low.gifFigure 7-3 Backplane and Mid-Plane Application Schematic