Specifications

Performance Tests 5-17
DS360 Ultra Low Distortion Function Generator
7. Sweeps
These procedures test the flatness of frequency sweeps.
Setup
Connect the + BNC of the DS360 to CH A of the scope. Connect the SWEEP OUT BNC from the rear
panel of the DS360 to CH B of the scope. Set CH A to 1 V/div, CH B to 5V/div, the time base to
50µs/div and triggering on CH B.
Procedure
1) Reset the DS360 (Turn power off, wait 2 seconds, then turn power on w/ [CLR] pressed).
2) Measure the sweep flatness for a 1 Hz to 100 kHz sweep.
a) Press
[START/CENTER] [1] [Hz]
[STOP/BW] [1] [0] [0] [kHz]
[RATE] [2] [kHz]
[AMPL] [5] [V
PP
]
[SWP/BUR]
b) Expand CH A to 0.2 V/div and offset the waveform so the upper portion can be viewed.
Confirm that, excluding the first 10 µs, the waveform is flat to within 50 mV
PP
(1/4 of a
division). Record the result on the test record located at the end of this section.
3) This completes the sweep test.