9. EYE PATTERN DISPLAY (SER02/SER09)
189
●
Measurement items
The items that can be automatically measured are shown below.
Table 9-1 Measurement items
Symbol Display
Description
a
Amp
Eye-pattern amplitude
b
Tr
Rise time (time from 20% to 80% of amplitude)
c
Tf
Fall time (time from 80% to 20% of amplitude, and not shown in the following figure)
d
T.J
Timing Jitter
e
C.J
Current jitter (jitter value when the currently selected filter is applied)
f
Or
Overshoot of the rising edge
g
Of
Overshoot of the falling edge
Figure 9-4 Explanation of measurement items
●
Unit interval
This unit uses unit intervals (UI) as jitter measurement units.
One cycle of the eye pattern is 1 UI. The time that corresponds to 1 UI varies depending on
the input signal, as shown below.
Table 9-2 Time that corresponds to 1 UI
Input Signal
Bit Rate
Time That Corresponds to 1 UI
3G
2.970/1.001Gbps
337.0ps
2.970Gbps
336.7ps
HD
1.485/1.001Gbps
674.1ps
1.485Gbps
673.4ps
SD
270Mbps
3.7ns
Summary of Contents for LV 5480
Page 15: ...2 VIDEO SIGNAL WAVEFORM DISPLAY 7 SCALE UNIT HDV SDV SCALE UNIT HD SD SCALE UNIT 150 ...
Page 38: ...2 VIDEO SIGNAL WAVEFORM DISPLAY 30 COLOR MATRIX XYZ COLOR MATRIX GBR COLOR MATRIX RGB ...
Page 98: ...5 PICTURE DISPLAY 90 STATUS INFO ON Figure 5 34 Turning the information on and off ...