Test Program (Fast Tuning Setting)

In the Test Program Measurement Setup and Test Line Setup dialogs, the Fast Tuning setting reduces the time required to acquire measurement results when performing iterative testing.

Using the following techniques, Fast Tuning reduces measurement time while introducing a small reduction in accuracy:

• Reducing samples acquired per UI
• Turning off Clock Recovery's Loop Bandwidth (LBW) Tuning
• Turning off Clock Recovery's Clock Pattern Distortion Compensation

Fast Tuning works with all FlexOTO measurements except TDECQ and Ceq. In iterative testing, your test executive would employ the basic steps shown in the following greatly simplified algorithm.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
FlexotoFastTuning(ON)
RunFlexotoTestPlan()
measurements = GetMeasurementResults()
                
While measurements != target:
    PerformDutAdjustement()
    RunFlexotoTestPlan()
    GetMeasurementResults()

FlexotoFastTuning(OFF)
RunFlexotoTestPlan()
measurements = GetMeasurementResults()
If measurements == pass:
    exit
else
    DoSomething()