Read-only |
About Eye Diagrams |
Description |
Returns the results of an eye diagram measurement. |
VB Syntax |
pltsView.GetEyeMeasureResult plotName, zero, one, mean, ampl, heightMV, heightdB, width, opening, StN, dC, dCpercent, riseTime, fallTime, jitterPP, jitterRMS |
Variable |
(Type) - Description |
|
pltsView |
(object) - A PLTSView object |
|
plotName |
(String) Name of the measurement. |
|
zero |
(String) Mean value of logical zeros |
|
one |
(String) Mean value of logical ones |
|
mean |
(String) Mean value of logical ones and zeros |
|
ampl |
(String) Amplitude difference between logical 1 and logical 0 histogram mean values. |
|
heightMV |
(String) Vertical opening of the eye diagram in mv |
|
heightdB |
(String) Vertical opening of the eye diagram in dB |
|
width |
(String) Horizontal opening of the eye diagram |
|
opening |
(String) Ratio of eye height to eye amplitude |
|
StN |
(String) Signal to Noise. Ratio of the signal difference in logical 1 to logical 0 relative to the noise present at both levels. |
|
dC |
(String)Duty Cycle Distortion. Time separation between the rising edge and falling edge at the 50% (middle) threshold of the eye diagram. |
|
dCpercent |
(String) Percent of duty cycle distortion. |
|
riseTime |
(String) Mean transition time of the data on the upward slope (rising edge). |
|
fallTime |
(String) Mean transition time of the data on the downward slope (falling edge). |
|
jitterPP |
(String) Time variances between the rising and falling edges. These edges affect the crossing point of the eye. PP= full width of the histogram at the eye diagram crossing point. |
|
jitterRMS |
(String) Time variances between the rising and falling edges. These edges affect the crossing point of the eye. RMS= standard deviation of the histogram at the eye diagram crossing point. |
Return Type |
String |
Default |
None |
Examples |
data = pltsView.GetEyeMeasureResult |
C++ Syntax |
HRESULT GetEyeMeasureResult(BSTR plotName, BSTR* zero, BSTR* one, BSTR* mean, BSTR* amplitude, BSTR* heightMv, BSTR* heightDb, BSTR* width, BSTR* openingFactor, BSTR* signalToNoise, BSTR* dutyCycleDist, BSTR* dutyCycleDistPercentage, BSTR* riseTime, BSTR* fallTime, BSTR* jitterPP, BSTR* jitterRms); |
Interface |
IPLTSView |