Jitter analysis and clock data recovery
R&S
®
RTO6
1073
User Manual 1801.6687.02 ─ 05
Cycle begin
Selects the slope at which the periods and thus the jitter is measured.
The setting is available for the following measurements: cycle-cycle jitter, N-cycle jitter,
and cycle-cycle duty cycle.
"First edge"
Measures the period from the first edge that is found, no matter of its
direction.
"Positive"
Measures the period at positive going edges.
"Negative"
Measures the period at negative going edges.
"Either"
Measures the period at both positive and negative going edges. This
option is useful, for example, to check the clock stability of a double
data rate clock.
Remote command:
Ref level
The setting defines the "Data ref level" for setup and hold measurements, and for time-
interval error measurements (option R&S
RTO6-K12). It selects the reference level of
the data signal on which the time is measured. The intersection of slope and reference
level defines the time point for measurements.
For clock jitter measurements (option R&S
RTO6-K12), it sets the "Reference level" for
the time measurement.
Remote command:
MEASurement<m>:AMPTime:DATA<n>:LSELect
Pulse polarity
Sets the polarity of pulses for which the pulse width is measured to obtain the cycle-
cycle width and the cycle-cycle duty cycle.
The setting is available for the following measurements: cycle-cycle width and cycle-
cycle duty cycle.
"Positive"
Pulse width of positive pulses is measured.
"Negative"
Pulse width of negative pulses is measured.
Remote command:
Number of cycles
Sets the number of periods (cycles) that are accumulated to measure the N-cycle jitter.
Jitter measurements (options R&S
RTO6-K12/K13)
