Tektronix TDS2022C Technical Reference page 22

Specifications
Table 1-2: Time base system (cont.)
Characteristic
Record Length
Seconds/Division Range
√ Long-Term Sample
Rate and Horizontal
Position Time Accuracy
Horizontal Position Time
Range
Horizontal Window
Display
Delta Time Measurement
Accuracy
Time Measurement
Functions
1–6
Description
This is the total number of samples contained in a single acquired waveform record (Memory Length in
IEEE 1057.2.2.1).
2,500 samples per record.
5 ns/div to 50 s/div in 1–2.5–5 sequence
Sec/Div Variable function is not available for this product.
This is the maximum, total, long-term error in sample-rate or horizontal position time accuracy, expressed
in parts per million.
±50 ppm over any ≥1 ms interval.
Horizontal scale setting
5 ns/div to 10 ns/div
25 ns/div to 100 μs/div
250 μs/div to 10 s/div
25 s/div to 50 s/div
The user controls the time from the trigger to the center graticule on the display with the Horizontal
Position knob.
The resolution of the Horizontal Position time is 1/25 of a horizontal division.
The Window Zone enables a user to select a part of the display to be magnified. The user controls the
location with the Horizontal Position knob and the width with the Sec/Div knob. Vertical cursors show the
selected zone. To magnify the zone, the user selects the window from the menu.
This is the accuracy of delta time measurements made on any single waveform.
The limits are given in the following table for signals having an amplitude ≥ 5 divisions, a slew rate at the
measurement points of ≥ 2.0 divisions/ns, and acquired ≥ 10 mV/div.
Condition
Single shot, sample mode, full bandwidth selected
> 16 averages, full bandwidth selected
The Sample Interval is the time between the samples in the waveform record.
Frequency, Period, Rise Time, Fall Time, Positive Width, negative Width, Positive Duty Cycle, Phase,
Delay
Horizontal position time range
-4 div * s/div to 20 ms
-4 div * s/div to 50 ms
-4 div * s/div to 50 s
-4 div * s/div to 250 s
Time Measurement Accuracy
±(1 Sample Internal + 100 ppm * |reading| +
0.6 ns)
±(1 Sample Internal + 100 ppm * |reading| +
0.4 ns)
TDS2000C Series Oscilloscope Service Manual