SGLS307Q July   2006  – August 2024 TLK2711-SP

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 TTL Input Electrical Characteristics
    6. 5.6 Transmitter/Receiver Electrical Characteristics
    7. 5.7 Reference Clock (TXCLK) Timing Requirements
    8. 5.8 TTL Output Switching Characteristics
    9. 5.9 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  Transmit Interface
      2. 6.3.2  Transmit Data Bus
      3. 6.3.3  Data Transmission Latency
      4. 6.3.4  8-Bit/10-Bit Encoder
      5. 6.3.5  Pseudo-Random Bit Stream (PRBS) Generator
      6. 6.3.6  Parallel to Serial
      7. 6.3.7  High-Speed Data Output
      8. 6.3.8  Receive Interface
      9. 6.3.9  Receive Data Bus
      10. 6.3.10 Data Reception Latency
      11. 6.3.11 Serial to Parallel
      12. 6.3.12 Comma Detect and 8-Bit/10-Bit Decoding
      13. 6.3.13 LOS Detection
      14. 6.3.14 PRBS Verification
      15. 6.3.15 Reference Clock Input
      16. 6.3.16 Operating Frequency Range
      17. 6.3.17 Testability
      18. 6.3.18 Loopback Testing
      19. 6.3.19 BIST
      20. 6.3.20 Power-On Reset
    4. 6.4 Device Functional Modes
      1. 6.4.1 Power-Down Mode
      2. 6.4.2 High-Speed I/O Directly-Coupled Mode
      3. 6.4.3 High-Speed I/O AC-Coupled Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 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 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.3.5 Pseudo-Random Bit Stream (PRBS) Generator

The TLK2711-SP has a built-in 27 – 1 PRBS function. When the PRBSEN pin is forced high, the PRBS test is enabled. A PRBS is generated and fed into the 10-bit parallel-to-serial converter input register. Data from the normal input source is ignored during the PRBS mode. The PRBS pattern is then fed through the transmit circuitry as if it were normal data and sent out to the transmitter. The output can be sent to a bit error rate tester (BERT), the receiver of another TLK2711-SP, or looped back to the receive input. Because the PRBS is not really random, but a predetermined sequence of 1s and 0s, the data can be captured and checked for errors by a BERT.