Digital Signal Processing Reference
In-Depth Information
Lower spec limit
15
10
5
0
55
60
65
70
75
80
85
Eye height (mV)
(a)
15
Lower spec limit
10
5
0
65
75
80
85
90
Eye width (ps)
(b)
Figure 14-8
Response distributions from 500,000-case Monte Carlo simulation: (a) eye
height; (b) eye width.
TABLE 14-9. Example Distribution and Defect Rate Statistics for
L
=
0
.
508 m
and EQ
=−
0
.
26
Eye
Eye
R
Tx
(
)Z
diff
(
)
R
TT
(
) Height (mV) Width (ps)
Mean
50.004
100.36
49.996
68.682
80.905
Standard deviation
3.959
6.46
3.961
2.361
1.212
Actual defect rate (ppm)
544
0
<
10
−
10
Estimated defect rate (ppm)
484
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