Tabor Electronics 5251, Руководство пользователя

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5
Performance Checks
Test Procedures
5-7
Waveform: Modulated
Modulation:
OFF
CW Frequency: 1 kHz
Output: On
Amplitude:
As specified in Table 5
Test Procedure:
1. Perform amplitude Accuracy tests using Table 5
Table Chapter 5-5, Amplitude Accuracy, DDS output
5251 Amplitude
Setting Error Limits DMM Reading Pass Fail
10.00V
3.534V,
±
60mV
5.000V 1.767V,
±
42mV
500mV
176.7mV,
±
6.7mV
50.00mV 17.67mV,
±
2.1mV
Offset Accuracy
Offset accuracy checks tests the accuracy of the offset generators.
Each channel has its own set of offset generators and therefore, the
accuracy is tested on each channel separately. Offset path is checked
for both the DAC route (arbitrary and standard waveforms) and the
DDS route (CW and modulated waveforms).
Offset Accuracy,
DAC Output
Equipment: DMM
Preparation:
1. Configure the DMM as follows:
Termination: 50
Ω
feedthrough at the DMM input
Function: DCV
2. Connect 5251 output to the DMM input
3. Configure the 5251 as follows:
Frequency: 1 MHz
Amplitude: 20 mV
Output: On
Offset:
As specified in Table 6
Test Procedure:
1. Perform Offset Accuracy tests using Table 6