Tektronix MSO70000C/DX Technical Reference page 99

Horizontal and acquisition system specifications (cont.)
Seconds/Division range
Maximum update rate
Aperture uncertainty
Long-term sample rate and
delay time accuracy
Delta-time measurement
accuracy
MSO70000C/DX, DPO70000C/DX, DPO7000C, MSO5000/B, DPO5000/B Series
MSO5204B, Record
DPO5204B, Length
MSO5104B,
DPO5104B
Horizontal Mode 1 K
Automatic 250 ps -
20 s
Constant SR 250 ps -
20 s
Manual 250 ps -
40 s
MSO5054B, Record
DPO5054B, Length
MSO5034B,
DPO5034B
Horizontal Mode 1 K
Automatic 250 ps -
20 s
Constant SR 250 ps -
20 s
Manual 250 ps -
40 s
Maximum triggered acquisition rate: >250,000 wfm/s
≤(3 ps + 0.1 ppm × record duration)RMS, for records having ≤1 minute duration
±5 ppm over any ≥1 ms time interval
The formula to calculate the 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):
SR1 = slew rate around 1st point in measurement (1st edge)
SR2 = slew rate around 2nd point in measurement (2nd edge)
N =input-referred noise (VRMS)
TBA = time base accuracy (5 ppm)
tp = delta-time measurement duration (seconds)
RD = (record length)/(sample rate)
tsr = 1/(sample rate)
assume edge shape that results from Gaussian filter response
Specifications (MSO/DPO5000/B Series)
10 K 100 K 1 M
2.5 ns - 50 ns - 500 ns -
200 s 1 ks 1 ks
2.5 ns - 50 ns - 500 ns -
200 s 1 ks 1 ks
2.5 ns - 25 ns - 250 ns -
400 s 4 ks 40 ks
10 K 100 K 1 M
2.5 ns - 50 ns - 1 ks 500 ns -
200 s 1 ks
2.5 ns - 50 ns - 1 ks 500 ns -
200 s 1 ks
2.5 ns - 25 ns - 4 ks 250 ns -
400 s 40 ks
10 M 100 M 200/250
M
5 us - 1 ks 50 us - 50 us -
1 ks 1 ks
5 us - 1 ks 50 us - 50 us -
1 ks 1 ks
2.5 us - 25 us - 50 us -
400 ks 4 Ms 8 Ms
10 M 100 M
5 us - 1 ks 50 us - 1 ks
5 us - 1 ks 50 us - 1 ks
2.5 us - 25 us -
400 ks 4 Ms
87