7.3 Performance tests
7-8
WF1943B
Squarewave response
Connection:
Use coaxial cable to connect FUNCTION OUT to an oscilloscope (50
Ω
termination).
Setting:
Initialize, then set
, frequency to 1 MHz and amplitude to 20 Vp-p/open.
Measurement:
Observe the waveform and measure the rise and fall times, overshoot and
undershoot.
Judgment:
The normal range is indicated in the table.
Item Normal
range
Rise and fall times
20 ns or less
Overshoot and undershoot
5 % or less
Duty factor
Connection:
Use coaxial cable to connect Function Out to a universal counter (50
Ω
terminated).
Settings:
Initialize the settings, then set amplitude to 20 Vp-p, and waveform and frequency
according to the following table.
Measurement:
Set the counter rise and fall period to the interval timer mode and measure the duty
(time). Use the average value, since jitter will cause dispersion in the measurement
values.
Determination:
The ranges indicated in the following table are normal.
Waveform Frequency Rated
range
(duty 50 % fixed)
1 MHz
490 to 510 ns
(duty 50 % fixed)
10 MHz
47.0 to 53.0 ns
(duty 50 % fixed)
15 MHz
30.0 to 36.7 ns
(duty variable)
100 kHz
4.90 to 5.10
µ
s
Summary of Contents for WF1943B
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Page 83: ...4 2 Sweep WF1943B 4 35 Sweep value and SYNC OUT Approximately 100 to 125 s...
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