3.
Configure the oscilloscope to acquire a 10 MHz sine wave with the following settings:
•
Vertical range
: 5 V
pk-pk
•
Sample rate
: 250 MS/s
•
Input impedance
: 50 Ω
•
Minimum number of points
: 1,048,576 samples
4.
Configure the PXIe-5413 with the following settings:
•
Channel
: Channel of the PXIe-5413 connected to the oscilloscope
•
Output impedance
: 50 Ω
•
Output mode
: Standard Function
•
Waveform type
: Sine
•
Frequency
: 10 MHz
•
Amplitude
: 2.5 V
pk-pk
•
Offset
: 0 V
•
Reference Clock source
: Onboard Reference Clock
5.
Wait 1 second for settling.
6.
Measure the peak frequency (Hz) using the oscilloscope and the Extract Single Tone
Information VI and record this as
F
Measured
.
7.
Calculate the timebase error using the following formula:
Timebase Error
(ppm) =
�Measured − 10
7
10
8.
Compare the frequency error to the appropriate limit from the
Timebase Accuracy
Verification
table.
Note
Timebase accuracy verification is only required on one channel of the
two-channel PXIe-5413.
Verifying DC Voltage Accuracy
Follow this procedure to verify the DC voltage accuracy of the PXIe-5413 by comparing the
voltage sourced by the PXIe-5413 to the value measured by the DMM.
Refer to the following table as you complete the following steps.
PXIe-5413 Calibration Procedure
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© National Instruments
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