Performance Verification for Digital Generator and Digital Analyzer
4
Keysight U8903B Service Guide
77
– SINE waveform amplitude: 1 FFS
– Digital output state: ON
4
Set the digital output sampling rate to F
SR
as given in “
output level accuracy verification
.
5
Set the digital output level to V
DUT
Test record for unbalanced output
6
Configure the DSO8064A oscilloscope as follows:
– Timebase scale: 1 / (Sampling rate
×
32
×
2)
– Channel 1 vertical scale: Refer to
7
Set the DSO8064A oscilloscope to measure the amplitude of Channel 1 and record the
measurement as V
measure
.
8
Compute the level accuracy using the following equation:
Level Accuracy (dB) = 20
×
Log (V
measure
/ V
DUT
)
9
for the rest of the V
DUT
as given in “
output level accuracy verification
to complete the verification of the
different voltages.
10
for the rest of the F
SR
as given in “
output level accuracy verification
to complete the verification of the
different sampling rates.
Table 4-8
Channel 1 vertical scale settings
V
DUT
(V)
Voltage per division (V)
0.3
0.05
0.5
0.085
0.8
0.15
1
0.17
1.2
0.2
1.3
0.25
1.5
0.25
1.8
0.3
2.0
0.35
2.3
0.39
2.5
0.42
Содержание U8903B
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