Specifications

5-4 Performance Tests
DS360 Ultra Low Distortion Function Generator
Instrument Critical Specification Recommended Model
Analog Oscilloscope 100 MHz Bandwidth Tektronix 2252
Time Interval Counter Time Interval Accuracy: 1 ns
Frequency Accuracy: <5ppm
SR620
FFT Spectrum Analyzer Frequency Range: DC to 100 kHz
Amplitude Accuracy +/- 0.1 dB
Distortion and Spurious: <80 dB
SR780
DC/AC Voltmeter 5 1/2 Digits DC Accuracy
0.1% AC Accuracy
True RMS AC to 100 kHz
HP3458A
Feedthrough Termination
50 Ω +/- 0.2%, 1 Watt
Any
Notch Filters 100 Hz
1 kHz
20 kHz
Homemade (see the description
on Distortion Measurements
below)
Warm Up
The DS360 should be turned on and allowed to warm up for at least an hour before the
performance tests are preformed. The self tests and functional tests do not require any warm up
period.
It is necessary to turn the unit off and on to reset it. As long as the unit is turned back on within
a minute, this will not effect the tests results.
Test Record
Make a copy of the DS360 Performance Test Record at the end of this section. Fill in the results
of the tests on this record. The record will allow you to determine whether the unit passes or
fails the tests and preserves a record of the tests.
If a Test Fails
Check the settings and connections of any external equipment and, if possible, verify its
operation using an oscilloscope or other piece of test equipment.
After checking the setup, repeat the test from the beginning to make sure that the test was
performed correctly.
If a test continues to fail, contact Stanford Research Systems for further instructions. Make sure
that you have the unit serial number and firmware revision number handy. Have the test record
on hand as well.