SLLS910A July   2008  – June 2016 ONET8501PB

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 DC Electrical Characteristics
    5. 7.5 AC Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 High-Speed Data Path
      2. 8.3.2 Band-gap Voltage and Bias Generation
    4. 8.4 Device Functional Modes
      1. 8.4.1 High-Speed Output Buffer
      2. 8.4.2 Rate Select
      3. 8.4.3 Loss-of-Signal Detection
    5. 8.5 Programming
      1. 8.5.1 2-Wire Interface and Control Logic
    6. 8.6 Register Maps
      1. 8.6.1  Register 0 (0x00) Mapping - Control Settings
      2. 8.6.2  Register 1 (0x01) Mapping - Input Threshold Adjust
      3. 8.6.3  Register 2 (0x02) Mapping - Preemphasis Adjust
      4. 8.6.4  Register 3 (0x03) Mapping - Output Amplitude Adjust
      5. 8.6.5  Register 4 (0x04) Mapping - Rate Selection Register A
      6. 8.6.6  Register 5 (0x05) Mapping - Rate Selection Register B
      7. 8.6.7  Register 6 (0x06) Mapping - Rate Selection Register C
      8. 8.6.8  Register 7 (0x07) Mapping - Rate Selection Register D
      9. 8.6.9  Register 8 (0x08) Mapping - LOS Assert Level Register A
      10. 8.6.10 Register 9 (0x09) Mapping - LOS Assert Level Register B
      11. 8.6.11 Register 10 (0x0A) Mapping - LOS Assert Level Register C
      12. 8.6.12 Register 11 (0x0B) Mapping - LOS Assert Level Register D
      13. 8.6.13 Register 14 (0x0E) Mapping - Selected Rate Setting (Read Only)
      14. 8.6.14 Register 15 (0x0F) Mapping - Selected LOS Level (Read Only)
  9. 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 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Community Resource
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

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11 Layout

11.1 Layout Guidelines

For optimum performance, use 50-Ω transmission lines (100-Ω differential) for connecting the high-speed inputs and outputs. The length of transmission lines must be kept as short as possible to reduce loss and pattern-dependent jitter. TI recommends maximizing the separation of the DOUT+ and DOUT– transmission lines from the DIN+ and DIN– transmission lines to minimize transmitter to receiver crosstalk.

11.2 Layout Example

ONET8501PB onet8501pb_layout_example.gif Figure 20. ONET8501PB Layout Example