Tektronix TDS 340A User Manual

Taking Measurements
TDS 340A, TDS 360 & TDS 380 User Manual
3–19
Table 3–1: Measurement definitions
Name Definition
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.
Frequency Timing measurement for the first cycle in the waveform or gated region. The reciprocal of the
period. Measured in Hertz (Hz) where 1 Hz = 1 cycle per second.
Positive Width Timing measurement of the first pulse in the waveform or gated region. The distance (time) between
MidRef (default 50%) amplitude points of a positive pulse.
Negative Width Timing measurement of the first pulse in the waveform or gated region. The distance (time) between
MidRef (default 50%) amplitude points of a negative pulse.
Rise time Timing measurement. Time taken for the leading edge of the first pulse in the waveform or gated
region to rise from a Low Ref value (default = 10%) to a High Ref value (default = 90%) of its final
value.
Fall Time Timing measurement. Time taken for the falling edge of the first pulse in the waveform or gated
region to fall from a High Ref value (default = 90%) to a Low Ref value (default =10%) of its final
value.
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%
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 +
NegativeWidth
Period
100%
Burst Width Timing measurement. The duration of a burst. Measured over the entire waveform or gated region.
Positive
Overshoot
Voltage measurement over the entire waveform or gated region.
PositiveOvershoot +
Max–High
Amplitude
100%
Negative
Overshoot
Voltage measurement. Measured over the entire waveform or gated region.
NegativeOvershoot +
Low–Min
Amplitude
100%
High The value used as 100% whenever High Ref, Mid Ref, and Low Ref values are needed (as in fall
time and rise time measurements). Measured over the entire waveform or gated region.
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. Measured over the entire waveform or gated region.
Maximum Voltage measurement. The maximum amplitude. Typically the most positive peak voltage.
Measured 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.
Peak to Peak Voltage measurement. The absolute difference between the maximum and minimum amplitude in
the entire waveform or gated region.

Tektronix TDS 340A Specifications

General

Brand	Tektronix
Model	TDS 340A
Category	Test Equipment
Language	English