SNLA474A October   2024  – October 2024 DS90UB971-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. Introduction
  5. Typical Test Standards Overview
    1. 2.1 ISO 10605 Standard
    2. 2.2 Performance Status Categorization
  6. FPD-Link Hardware Optimizations
    1. 3.1 Connector Grounding
    2. 3.2 PCB to Enclosure Grounding
    3. 3.3 MODE Selection
  7. FPD-Link Software Optimizations
    1. 4.1 LOCK Detection Tuning
    2. 4.2 Parity Error Handling
    3. 4.3 Forward Error Correction
      1. 4.3.1 FEC Test Capabilities
  8. Optimization Test Data
    1. 5.1 Baseline Hardware - No Software Optimization
    2. 5.2 Optimized Hardware - No Software Optimization
    3. 5.3 Optimized Hardware and Software
  9. Example Scripts for Software Optimization
  10. Additional System Level Software Options
  11. Summary
  12. References
  13. 10Revision History

ISO 10605 Standard

The ISO 10605 standard is one of the most commonly referenced test setups for evaluating system level ESD performance in the automotive environment. The standard is tailored specifically to simulate ESD into a vehicle electrical system and evaluate the system performance. In the context of an FPD-Link system, the test setup typically includes an end to end video link from ECU to camera module, and a means to evaluate the system performance in real time such as a live screen to display camera data.

The ISO 10605 setup can be conducted with either direct (to the DUT) or indirect (to a coupling plane near the DUT) discharge methods which are typically defined by the OEM requirement. ESD energy is discharged to the test setup via an ESD generator gun with a specified RC network and tip shape. Two different discharge types are specified for testing: air discharge and contact discharge. Of the two, contact discharge is typically more stressful to the system in terms of coupled energy, since less energy is dissipated through ionization of air during the strike. The example setup below is configured according to ISO 10605 Annex F where a coupling plate is used under the FPD cable.

 ISO 10605 Annex F Example Setup Figure 2-1 ISO 10605 Annex F Example Setup

The second figure outlines the setup used by TI for internal evaluation of camera module performance using a processor platform test board, a full camera module, and a live video display via PC monitor. This setup was used for gathering example data in the Section 5 section. Note that the deserializer system does not include a enclosure like a typical ECU platform. As a result, grounding and shielding of the deserializer system is weaker than expected and average performance is degraded.

 ISO 10605 Example Setup Figure 2-2 ISO 10605 Example Setup