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Electrical Sampling Modules
NOTE.
The aberration can have either a positive or negative sign. Both
aberrations could have the same sign when the waveform does not cross
the reference line in the region being checked.
2.
Check aberrations in the range of 14 ps to 150 ps after the edge (aberrations
20% and –2%).
a.
Push the
DEFAULT SETUP
front-panel button and click
Yes
.
b.
Open the Trigger Menu dialog box from the instrument front panel, select
TDR
, and set the clock rate to
50 kHz
using the drop down menu.
c.
Select the
TDR
tab in the menu dialog box. In the Preset column, select
C1
(or whichever channel your module is on).
d.
Select the
Measurement
tab. Set up Meas1, Meas2, and Meas3 as
follows:
Meas1
: Choose
Select Meas > Pulse-Amplitude > + Overshoot
.
Meas2
: Choose
Select Meas > Pulse-Amplitude > Pk-Pk
.
Meas3
: Choose
Select Meas > Pulse-Amplitude > Amplitude
.
e.
Click the
MATH
front panel button. Create a math trace (M1) to calculate
the lower abberation extreme (undershoot) by pressing the following keys
in the popup dialog box:
Meas1
–
(
100
*
(
Meas2
/
Meas3
)
)
Con
fi
rm that the
fi
nal expression is Meas1–(100*(Meas2/Meas3))
Select the
On
box and click
OK
.
214
DSA8300 Performance Veri
fi
cation
Содержание 80A00
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Страница 16: ...Important safety information x DSA8300 Performance Verification ...
Страница 213: ...Electrical Sampling Modules Figure 21 Setup to measure Power in DSA8300 Performance Verification 195 ...