Fluke 5820A, Руководство по обслуживанию

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Introduction and Specifications
General Specifications
1
1-11
1-12. Time Marker Specifications
Note
If you ordered the GHz Option, the following specification table is
superseded by the table with the same heading in Chapter 5.
Table 1-6. Time Marker Specifications
Time Marker into 50
Ω
5 s to
50 ms
20 ms to
100 ns
50 ns to
20 ns 10 ns
5 ns to 2
ns
Wave Shape spike or
square spike, square,
or 20%-pulse spike or
square square or
sine sine
Typical Output Level > 1 V p-p [1] > 1 V p-p [1] > 1 V p-p [1] >1 V p-p [1] > 1 V p-p
Typical Jitter (p-p) < 10 ppm < 1 ppm < 1 ppm < 1 ppm < 1 ppm
Sequence 5-2-1 from 5 s to 2 ns (e.g., 500 ms, 200 ms, 100 ms )
Adjustment Range At least
±
10 % around each sequence value indicated above.
Amplitude Resolution 4 digits
1-Year Absolute
Uncertainty, tcal
±
5
°
C
[3]
±
(2.5 ppm
+ 5
µ
Hz) [2]
±
0.33 ppm
±
0.33 ppm
±
0.33 ppm
±
0.33 ppm
[1] Typical rise time of square wave and 20%-pulse (20 % duty cycle pulse) is < 1.5 ns.
[2] With 10 MHz external reference selected, the uncertainty becomes that of the external clock plus 5
µ
Hz.
[3] Time marker uncertainty is
±
50 ppm when measured off of cardinal points:
5 s, 2 s, 1 s, 500 ms, 200 ms, 100 ms, 50 ms, 20 ms, 10 ms, 5 ms, 2 ms, 1 ms, 500
µ
s, 200
µ
s, 100
µ
s,
50
µ
s, 20
µ
s, 10
µ
s, 5
µ
s, 2
µ
s, 1
µ
s, 500 ns, 200 ns, 100 ns, 50 ns, 20 ns, 10 ns, 5 ns and 2 ns