Chapter 6 How to Operate Sampling Scope
6-44
Table 6.2.4-8 Items of Equalizer Tab*
1,
*
2
Item Description
Display Equalizer
Waveform
Off: Displays waveforms not applying Reference Equalizer.
On: Displays waveforms applying Reference Equalizer.
Equalizer Type Sets the equalizer type to automatically calculate the Tap for Reference
Equalizer.
TDECQ: Calculates the Tap coefficients that optimize TDECQ.
Linear: Calculates the Tap coefficients that increase the eye opening.
For Linear, Number of Precursors must be specified.
Equalizer Tap
Calculate: Calculates the Tap coefficients of Reference Equalizer
automatically.
The result of automatic calculation is displayed as Pass (success)
or Fail (failure).
When the calculation is executed during Sampling HOLD, the
waveform and measurement result of one pattern are displayed
after the calculation is complete. When the calculation result is
Fail, the Tap coefficients are initialized (main cursor is reset to 1,
others are reset to 0).
Optimization Sets the mode to calculate the Tap coefficients for Reference Equalizer.
Auto: Calculates the Tap coefficients more accurately.
Fast: Calculates the coefficients in a shorter time than Auto.
Number of
Precursors
Sets the position of Main tap. This is available when Optimization is Fast.
Tap Count Can be set within the range of 3 to 13.
Tap 0 to Tap 13*
3
Set the coefficient of each Tap within the range of –2.000000 to 2.000000.
*1: This is displayed when the MP2110A-095 is installed and the
installed scope is other than MP2110A-021.
*2: The settings are valid when all of the following conditions are met:
Signal Type is PAM4
Sampling Mode is Coherent Eye
Test Patterns other than Variable
For MP2110A-023 or 033, set the active channel to Ch B.
*3: The number displayed depends on the setting of Tap Count.
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