Appendix C: Automatic Communication Signal Measurements
Serial Mask Testing & Serial Pattern Trigger User Manual
49
The P values include the mean and standard deviation of the vertical location of
PTop and PBase. These areas are used with a specified sample size to statistical-
ly measure the following values:
H
PTop
mean
, the mean value of PTop
H
PTop
sigma
, the standard deviation of PTop
H
PTop
pk-pk
, the vertical peak-to-peak deviation of PTop
H
PBase
mean
, the mean value of PBase within the Eye Aperture
1
H
PBase
sigma
, the standard deviation of PBase within the Eye Aperture
1
H
PBase
pk-pk
, the vertical peak-to-peak deviation of PBase
1
The Eye Aperture defaults to the center 20% of the interval from
TCross
1
to TCross
2
.
The T1 values are vertical and horizontal values associated with the leftmost
crossing point. These areas are used to establish the following directions:
H
TCross1
mean
, the horizontal mean of the left crossing point at TCross
1
H
TCross1
sigma
, the horizontal standard deviation of the left crossing point
at TCross
1
H
TCross1
pk-pk
, the horizontal peak-to-peak deviation of the left crossing point
at TCross
1
H
PCross1
mean
, the vertical mean of the left crossing point at PCross
1
The T2 values are vertical and horizontal values associated with the rightmost
crossing point. These areas are used to establish the following directions:
H
TCross2
mean
, the horizontal mean of the right crossing point at TCross
2
H
TCross2
sigma
, the horizontal standard deviation of the right crossing point
at TCross
2
H
TCross2
pk-pk
, the horizontal peak-to-peak deviation of the right crossing
point at TCross
2
The duty cycle distortion (DCD) values are horizontal values associated with the
rightmost crossing point at 50% of the eye height. These areas are used to
establish the DCD
pk-pk
, the horizontal peak-to-peak deviation of the left crossing
point at half the height of the eye.
P Values
T1 Values
T2 Values
DCD Values
Summary of Contents for CSA7000 Series
Page 8: ...Preface vi Serial Mask Testing Serial Pattern Trigger User Manual ...
Page 12: ...Getting Started 4 Serial Mask Testing Serial Pattern Trigger User Manual ...
Page 18: ...Operating Basics 10 Serial Mask Testing Serial Pattern Trigger User Manual ...
Page 48: ...Reference 40 Serial Mask Testing Serial Pattern Trigger User Manual ...
Page 62: ...Index 54 Serial Mask Testing Serial Pattern Trigger User Manual ...