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Appendix B: Automatic Measurements Supported
B-2
CSA7000 Series, TDS7000 Series, & TDS6000 Series Instruments User Manual
Table B- 1: Supported measurements and their definition (Cont.)
Name Definition
Low The value used as 0% whenever High Ref, Mid Ref, and Low Ref values are needed (as in fall
time and rise time measurements). May be cal culated using either the min/max or the histogram
method. With the min/max method it is the minimum value found. With the histogram method, it
refers to the most common value found below the midpoint. Measured over the entire waveform
or gated region.
Maximum Voltage measurement. The maximum ampli tude. Typically the most positive peak voltage.
Measured over the entire waveform or gated region.
Mean Voltage measurement. The arithmeti c mean over the entire waveform or gated region.
Minimum Voltage measurement. The minimum amplitude. Typically the most negative peak voltage.
Measured over the entire waveform or gated region.
Negative Duty Cycle Timing measurement of the first cycle in the waveform or gated region. The ratio of the negative
pulse width to the signal period expressed as a percentage.
NegativeDutyCycle =
NegativeWidt h
Period
× 100%
Negative Overshoot Voltage measurem ent. Measured over the entire waveform or gated region.
NegativeOvershoot =
Low–Min
Amplitude
× 100%
Negative Width Timing measurement of the first pulse in the waveform or gated region. The distance (time)
between MidRef (default 50%) am plit ude points of a negative pulse.
Peak to Peak Voltage measurem ent. The absolute difference between the maximum and minimum amplitude
in the entire waveform or gated region.
Phase Timing measurement. The amount one waveform leads or lags another in time. Expressed in
degrees, where 360_ comprise one waveform cycle.
Period Timing measurement. Time it takes for the first complete signal cycle to happen in the waveform
or gated region. The reciprocal of frequency. Measured in seconds.
Positive Duty Cycle Timing measurement of the first cycle in the waveform or gated region. The ratio of the positive
pulse width to the signal period expressed as a percentage.
PositiveDutyCycle =
PositiveWidth
Period
× 100%