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  • Linear Repeaters Used in SAS/SATA Applications

    • SNLA236 September   2015 DS125BR111 , DS125BR401A , DS125BR820

       

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  • Linear Repeaters Used in SAS/SATA Applications
  1.   Linear Repeaters Used in SAS/SATA Applications
    1.     Trademarks
    2. 1 Introduction
    3. 2 SAS-3 Transmit Waveforms
      1. 2.1 Default Transmit Equalization Coefficients
      2. 2.2 Using Linear Equalization to Recover Tx FIR Information
      3. 2.3 Linear Equalization Effects on Jitter Due to Attenuation
    4. 3 Equalizer Placement within a SAS-3 Channel
    5. 4 System Results Using Linear Equalization
      1. 4.1 Linear Equalization Effects on Jitter Due to Attenuation
      2. 4.2 Channel Extension
    6. 5 Passing Out Of Band (OOB) Signals
    7. 6 Conclusions
    8. 7 Appendix A: Layout Considerations
  2.   Revision History
  3. IMPORTANT NOTICE
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APPLICATION NOTE

Linear Repeaters Used in SAS/SATA Applications

Linear Repeaters Used in SAS/SATA Applications

This report summarizes the results of SAS/SATA testing using TI’s DS125BR820 and DS125BR401A Low-Power 12.5 Gbps 8-Channel Repeaters. The TI devices are tested in an external miniSAS-HD environment and directly using a DS125BR820EVM. The test results will demonstrate how linear equalization can improve system margin and allow for the extended channel configurations that are required in the latest storage systems.

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