Teledyne LeCroy QPHY-DDR4 - Manual (Page 50)

Area
After the completion of the Overshoot Area test the oscilloscope is in the following configuration:
Figure 37 - Oscilloscope Configuration after the Overshoot Area Test
Shown on this screen:
• Z2 is a zoom of F2, the acquired DQS signal after any probe deskew has been applied. The zoom is
positioned at the location of the “worst case” Overshoot Area measurement indicated by
t@AreaMax. A trace label is applied on this trace according to the signal name assigned to DQS.
This signal is not measured in this test and is only provided as a visual reference.
• Z3 is a zoom of F3, the acquired DQ signal after any probe deskew has been applied. The zoom is
position at the location of the “worst case” Overshoot Area measurement indicated by
t@AreaMax. A trace label is applied on this trace according to the signal name assigned to DQ.
This is the signal which is measured in this test.
50 924291 Rev A