Bit Amplitude measurement algorithm
Bit Amplitude is the difference between the levels of the "1" and "0" bits surrounding each transition, measured over a specified
range at the center of the recovered unit interval. This measurement is made on each transition bit (Mean) or across the entire
record (Mode).
Bit High measurement algorithm
Bit High is the amplitude of a "1" bit. The amplitude is measured over a user-specified portion at the center of the recovered unit
interval. This measurement is made on each high bit in the record (Mean) or across the entire record (Mode).
Bit Low measurement algorithm
Bit Low is the amplitude of a "0" bit. The amplitude is measured over a user-specified portion at the center of the recovered unit
interval. This measurement is made on each low bit in the record (Mean) or across the entire record (Mode).
DC Common Mode measurement algorithm
DC Common Mode is the arithmetic mean of the common mode of two sources. This measurement is made across the entire
record.
Differential Crossover measurement algorithm
Differential Crossover is the voltage level of a differential signal pair at the crossover point(s). This measurement is made at each
crossover point in the record.
SSC Freq Dev measurement algorithm
SSC Freq Dev is the spread spectrum clock frequency deviation from the nominal frequency in ppm (parts per million).
Clock recovery is used on the measurement. The method is constant clock mean.
SSC Modulation Rate measurement algorithm
SSC Modulating Rate is the modulating frequency of a spread spectrum clock. It is the rate that the clock frequency changes.
Clock recovery is used on the measurement. The method is constant clock mean.
TIE
TIE (Time Interval Error) is the difference in time between an edge in the source waveform and the corresponding edge in a
reference clock. The reference clock is usually determined by a clock recovery process performed on the source waveform. For
Explicit-Clock clock recovery, the process is performed on an explicitly identified source.
If the Signal Type is Clock. The application calculates Clock TIE measurement using the following equation:
Where:
TIEClock is the clock time interval error.
TClock is the Mid reference crossing time for the specified clock edge.
T'Clock is the corresponding edge time for the specified reference clock.
Measurement algorithms
MSO54, MSO56, MSO58, MSO58LP, MSO64 Help 455
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