Crosstalk
Crosstalk between adjacent signal paths modulates the vertical eye
amplitude. This narrows the voltage range of the receiver needed for
capturing data correctly.
For jitter tolerance tests, amplitude modulation is most often simulated
by modulating the data output with a sinewave signal. This is called
Sinusoidal Interference (SI).
Total Jitter
Total jitter is the sum of all kinds of jitter.
Edge, level, and shape variations impact width, height, and symmetry
of the eye opening. An example is shown below:
How the N4903 Generates Jitter
An Serial BERT on which the calibrated and integrated jitter injection
option J10 and the interference channel option J20 are installed,
combines all the necessary jitter sources in one instrument.
Jitter Tolerance Tests
7
Agilent J-BERT N4903 High-Performance Serial BERT
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Summary of Contents for J-BERT N4903
Page 1: ...S Agilent J BERT N4903 High Performance Serial BERT User Guide s Agilent Technologies...
Page 68: ...2 Setting up Patterns 68 Agilent J BERT N4903 High Performance Serial BERT...
Page 158: ...4 Setting up the Error Detector 158 Agilent J BERT N4903 High Performance Serial BERT...
Page 314: ...6 Evaluating Results 314 Agilent J BERT N4903 High Performance Serial BERT...
Page 374: ...7 Jitter Tolerance Tests 374 Agilent J BERT N4903 High Performance Serial BERT...
Page 394: ...8 Solving Problems 394 Agilent J BERT N4903 High Performance Serial BERT...
Page 434: ...Index 434 Agilent J BERT N4903 High Performance Serial BERT...
