SNLU293A December   2022  – December 2022 DS560DF810

 

  1.   DS560DF810EVM User's Guide
  2.   Trademarks
  3. 1Hardware Description and Setup
    1. 1.1 Required Hardware
    2. 1.2 General Hardware Test Setup Procedure
    3. 1.3 Hardware Configuration to use Onboard 25 MHz Oscillator for CAL_CLK_IN
  4. 2Software Description
    1. 2.1 Software Installation Sequence
    2. 2.2 Latte Functional Overview
    3. 2.3 Useful Latte Short-Cuts
    4. 2.4 DS560DF810EVM Initialization Through the Latte GUI
      1. 2.4.1 Connect Latte to Board
      2. 2.4.2 Compile Libraries
      3. 2.4.3 Example: Programming DS560DF810EVM for 26.5625 GBd PAM4 Test Case
      4. 2.4.4 Retimer Configuration
      5. 2.4.5 Retimer “Useful Functions” (Contained in the usefulFunctions.py Latte Script)
      6. 2.4.6 Vertical Eye Monitor
  5. 3Test Case Examples
    1. 3.1 Transmitter Test Case – EVM Board Output Evaluation for 26.5625 GBd PAM4 Data
    2. 3.2 Receiver Test Case – High Loss Input Channel to Retimer EVM, 26.5625 GBd PAM4
  6. 4Supplemental Documents
  7. 5EVM Cable Assemblies
  8. 6Revision History

3.2 Receiver Test Case – High Loss Input Channel to Retimer EVM, 26.5625 GBd PAM4

The following is an example retimer Rx test case with results collected using this EVM.

  • Data Rate: 26.5625 GBd PAM4

  • Data pattern: PRBS31

  • Total input channel insertion loss: −32.46 dB at 13.28 GHz

    • 15-inch 5mil FR4 test trace: −27.26 dB at 13.28 GHz

    • DS560DF810EVM board level channels (Tx + Rx): −5.2 dB at 13.28 GHz

Figure 3-2 SDD21 for the 15-Inch FR4 PCB Test Trace Used at Input Channel for the Receiver Test Case

Result summary

Total Bits : 137170649088

Num Errors : 920791

BER : 6.71E-06

Figure 3-3 Vertical Eye Monitor Capture for Receiver Test Case