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1.5 Technical
Terms
1-41
1
Outline
Sampling Oscilloscope
The sampling oscilloscope is a function for monitoring the waveform of
the input signal. It requires a clock input sampling and the waveform is
drawn out of the clock timing. For a periodic signal like PRBS, the
waveform data is obtained by slightly varying the sampling timing. This
waveform data is drawn by superimposing the waveforms.
Clock timing
First measurement
waveform
Second measurement
waveform
Third measurement
waveform
Fourth measurement
waveform
Superimposed waveform
Figure 1.5-25 Drawing Method of Sampling Oscilloscope
SNR (Signal to Noise Ratio)
This is the ratio of the signal amplitude to the noise amplitude.
The sampling oscilloscope can be calculated by the following formula.
SNR= (1 Level–0 Level)/(
1
+
0
)
1
: 1 Level Standard Deviation
0
: 0 Level Standard Deviation
Symbol Rate
Symbol rate is the modulation speed of the signal and the unit is baud. As
one NRZ modulated signal (symbol) carries 1 bit of data, the Symbol Rate
value is the same as Bit Rate. As one PAM4 modulated signal carries 2
bits of data, the Bit Rate value is the twice of Symbol Rate.
Содержание BERTWave Series
Страница 26: ...VI...
Страница 74: ...Chapter 1 Outline 1 48...
Страница 166: ...Chapter 4 Screen Operation 4 24...
Страница 210: ...Chapter 6 How to Operate Sampling Scope 6 16 Figure 6 2 2 4 Switching Graph Display...
Страница 237: ...6 2 Explanation of Windows 6 43 6 How to Operate Sampling Scope Figure 6 2 4 9 Measure Dialog Box Equalizer Tab...
Страница 239: ...6 2 Explanation of Windows 6 45 6 How to Operate Sampling Scope Figure 6 2 4 10 Measure Dialog Box Mask Test Tab...
Страница 246: ...Chapter 6 How to Operate Sampling Scope 6 52 Figure 6 2 6 2 Time Dialog Box CRU Tab When MP2110A 054 is installed...
Страница 309: ...6 9 Measuring Waveform 6 115 6 How to Operate Sampling Scope Figure 6 9 5 1 Marker Display...
Страница 322: ...Chapter 6 How to Operate Sampling Scope 6 128...
Страница 377: ...8 6 Adding an Option License 8 11 8 Maintenance 10 Click System Menu System Information and confirm the added option...
Страница 380: ...Chapter 8 Maintenance 8 14 7 Click Reinstall Windows 8 Click Yes...
Страница 432: ...Appendix A Specifications A 36...
Страница 457: ...D 3 Sampling Oscilloscope D 11 Appendix D 26G 53G CRU MP2110A 055 Table D 3 7 CRU Output Sensitivity Pass Fail...
Страница 458: ...Appendix D Performance Test Record Form D 12...
Страница 466: ...Index Index 6...