Electrical Sampling Modules
CSA8000 & TDS8000 Instruments and Sampling Modules
4–81
H
negative aberration (%) = (1000+Min) * 0.1
o. Check that the aberrations for the entire 10 ns to 20 ps region before the
edge (from steps i and n) are within
3%. If recording data on the Test
Record, enter the largest (positive or negative) value.
2. Check aberrations in the range of 400 ps to 5 ns after the edge (aberrations
within
3%).
a. Change the Horizontal Scale to 50 ps/division while adjusting Horizon-
tal Position to keep the rising edge of the step waveform centered on the
display.
b. Press the front panel FINE button to turn it on.
c.
Adjust the Horizontal Position knob so the waveform crosses the center
vertical graticule at the 90% (amplitude) point of the rising edge. The
waveform should be crossing the center vertical graticule at 1 minor
division below the center horizontal graticule. This defines the beginning
reference for post-transition aberration measurements.
d. Press the front panel FINE button to turn it off.
e.
In the Horz Setup dialog box:
H
set Horizontal Reference to 50%.
H
set Horizontal Scale to 1 ns/division.
f.
In the Meas Setup dialog box, for Meas1:
H
Set G1 to 54%.
H
Set G2 to 100%.
g. In the Meas Setup dialog box, for Meas2:
H
Set G1 to 54%.
H
Set G2 to 100%.
h. The Max and Min measurements are now set to include the region of
400 ps to 5 ns after the edge. The aberration specification over this
region is
3%, which is
30 m
r
for a 1
r
step. The reference level is
HiRef, from step 5e on page 4–79 of the setup procedure.
i.
Calculate the peak aberrations in percent using the formulas (with Max,
Min, and HiRef in m
r
, not
r
):
H
positive aberration (%) = (Max - HiRef) * 0.1
H
negative aberration (%) = (Min - HiRef) * 0.1
Summary of Contents for CSA8000 Series
Page 4: ......
Page 18: ...Service Safety Summary xiv CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 22: ...Preface xviii CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 23: ......
Page 59: ...80C00 Modules Specifications 1 36 CSA8000 TDS8000 Instruments and Sampling Modules back ...
Page 63: ...80A01 Module Specifications 1 40 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 64: ......
Page 74: ...Installation 2 10 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 93: ......
Page 103: ...Theory of Operation 3 10 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 104: ......
Page 106: ...Performance Verification Procedures 4 2 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 122: ...Brief Procedures 4 18 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 126: ...Performance Tests 4 22 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 218: ...80A01 Trigger Preamplifier Module 4 114 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 219: ......
Page 231: ...Maintenance 6 6 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 291: ...Removal and Installation Procedures 6 66 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 307: ...Repackaging Instructions 6 82 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 308: ......
Page 313: ......
Page 315: ...Electrical Parts List 8 2 CSA8000 TDS8000 Instruments and Sampling Modules ...
Page 316: ......