User manual

3152B User Manual Publication No. 980935 Rev. M
6-12 Performance Checks Astronics Test Systems
Table 6-20, Sine Wave Spectral Purity, DAC Output Test – at 5 V
3152B Freq
Reading
Spectrum Analyzer Settings
Settings
Limits
Start
Stop
Reading
Pass
Fail
1 MHz
>45 dBc
100 kHz
10 MHz
5 MHz
>45 dBc
1 MHz
20 MHz
10 MHz
>40 dBc
1 MHz
100 MHz
50 MHz
>35 dBc
10 MHz
200 MHz
100 MHz
>28 dBc
10 MHz
250 MHz
2. Change amplitude to 10 V and perform sine wave spectral
purity, DAC waveforms tests using Table 6-21.
Table 6-21, Sine Wave Spectral Purity, DAC Output Test – at 10 V
3152B Freq
Reading
Spectrum Analyzer Settings
Settings
Limits
Start
Stop
Reading
Pass
Fail
1 MHz
>40 dBc
100 kHz
10 MHz
5 MHz
>35 dBc
1 MHz
20 MHz
10 MHz
>35 dBc
1 MHz
100 MHz
50 MHz
>30 dBc
10 MHz
200 MHz
100 MHz
>30 dBc
10 MHz
250 MHz
Sine Wave
Spectral
Purity, DDS Output
Equipment: Spectrum Analyzer
Preparation:
1. Connect 3152B output to the spectrum analyzer input. Use a
50 Ω and 20 dB feedthrough termination at the spectrum
analyzer input
2. Configure the 3152B as follows:
Waveform: Modulated
Modulation: OFF
Amplitude: 5 V
Output: On
CW Frequency: As required by the test
Test Procedure
1. Perform sine wave spectral purity, DDS Waveforms tests
using Table 6-22.