SLUAAA9A October   2020  – May 2021 DP83TD510E

 

  1.   Trademarks
  2. 1Introduction
  3. 2Terminology
  4. 3Establishing a Link
    1. 3.1 Auto-Negotiation
    2. 3.2 Forcing Host-Client Configuration
      1. 3.2.1 AN_CONTROL (address = 0x7200) [reset = 0x1000]
      2. 3.2.2 PMA_PMD_CTRL (address = 0x1834) [reset = 0x4000]
    3. 3.3 1.0 Vpp vs. 2.4 Vpp Operating Mode
  5. 410Base-T1L Cable Parameters
    1. 4.1 Characteristic Impedance
    2. 4.2 Insertion Loss
    3. 4.3 Return Loss
    4. 4.4 Maximum Delay Link
    5. 4.5 Electromagnetic Classifications
    6. 4.6 Differential to Common Mode Conversion
    7. 4.7 Coupling Attenuation
    8. 4.8 DP83TD510 Cable Reach Performance
  6. 5Revision History

4.3 Return Loss

The 10Base-T1L link should adhere to the following return loss specification to limit the noise from mismatches to the 100 Ω reference impedance:

Equation 3. GUID-20200928-CA0I-7PVQ-ZNRM-XKJ2WCWGMZTC-low.png