DS335 Synthesized Function Generator
DS335 Synthesized Function Generator
DS335 Synthesized Function Generator
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4-10 Performance Tests<br />
DC+AC<br />
2) Set the <strong>DS335</strong> to 5V offset. Read the voltmeter and record the result.<br />
The result should be between +4.94V and +5.06V.<br />
3) Set the <strong>DS335</strong> to -5V offset. Read the voltmeter and record the result.<br />
The result should be between -5.06V and -4.940V.<br />
4) Set the <strong>DS335</strong> to 0V offset. Read the voltmeter and record the result.<br />
The result should be between -0.2 mV and +0.2mV.<br />
specification: < ±80mV at full output<br />
1) Connect the <strong>DS335</strong>'s output to the voltmeter with a 50W terminator. Set<br />
the <strong>DS335</strong> to sine wave, 1 kHz, 10Vpp, 0V offset, and 50Ω Load<br />
Impedance. Set the voltmeter to measure DC voltage.<br />
2) Measure the offset voltage and verify that it is between -80mV and<br />
+80mV. Record the result.<br />
3) Repeat step 2 at 100kHz, 1MHz, and 3.1MHz. Record the results and<br />
verify that the offset is between -80mV and +80mV at all of the<br />
frequencies.<br />
SUBHARMONICS<br />
This test measures the subharmonic content of the <strong>DS335</strong>'s sinewave<br />
output. The frequencies in this test are picked such that spurious<br />
frequencies from the DDS process do not fall on the carrier position.<br />
specification: