Tektronix DPO5000 Series Technical Reference

Timebase stability (sample rate
jitter or jitter noise floor), typical
Total:
<4 GHz models <1.0 ps rms for record durations less than 10 μs
<2.5 ps rms for record durations less than 30 ms
<65 parts/trillion for record durations less than 10 s
Timebase jitter with external
reference, typical, ≥4 GHz models
≤3 ps
RMS
at 100 ms delay
Delta time measurement
accuracy, >20 GHz models
The formula to calculate the maximum delta-time measurement accuracy (DTAmax) for a given
instrument setting and input signal is given below (assumes insignificant signal content above
Nyquist and insignificant error due to aliasing, overdrive recovery and overdrive interpolation):
N
typ
= typical input-referred noise spec (volts rms)
F
N
= 1.3 for instrument bandwidth ≤9 GHz; 1.5 for instrument bandwidth ≥10 GHz
SR
1
= slew rate around 1st point in measurement (1st edge)
SR
2
= slew rate around 2nd point in measurement (2nd edge)
TBA = timebase accuracy (2 ppm)
F
I
= 1.2 × 10–2
t
r1
= rise time of first edge
t
r
2
= rise time of second edge
t
j
= sample jitter/aperture uncertainty (about 250 fs for time durations less than 10 μs)
t
reading
= delta-time measurement (seconds)
Peak-peak based on statistical accumulation of 1000 waveforms.
DTA
MAX
pk-pk
= 10 × (N
typ
× F
N
)
2
(
1
SR
1
)
2
+
(
1
SR
2
)
2
+ F
I
2
×
(
t
r1
2
+ t
r2
2
)
+ (2 × t
j
)
2
+
TBA × t
reading
seconds
pk-pk
RMS is guaranteed regardless of data-gathering duration.
DTA
MAX
RMS
= 10 × (N
typ
× F
N
)
2
(
1
SR
1
)
2
+
(
1
SR
2
)
2
+ F
I
2
×
(
t
r1
2
+ t
r2
2
)
+ (2 × t
j
)
2
+
TBA × t
reading
seconds
RMS
The term under the square-root sign is the stability and is due to time interval error (TIE). The
errors due to this term occur throughout a single-shot measurement. The second term is due to
both the absolute center-frequency accuracy and the center-frequency stability of the timebase and
varies between multiple single-shot measurements over the observation interval (the amount of
time from the first single-shot measurement to the final single-shot measurement). The observation
interval may not exceed 1 year.
Test at maximum bandwidth.
Horizontal and acquisition system (cont.) Specifications (MSO70000C/DX, DPO70000C/DX, and DPO7000C
series)
MSO70000C/DX, DPO70000C/DX, DPO7000C, MSO5000/B, DPO5000/B Series 53

Tektronix DPO5000 Series Specifications

General

Brand	Tektronix
Model	DPO5000 Series
Category	Test Equipment
Language	English