UTG4000A Operating Manual
2.3.5 Set Pulse Wave
The duty ratio of pulse wave represents time quantum from the 50% threshold value of
rising edge of the pulse to 50% threshold value of the next falling edge in each cycle
(suppose waveform is not reversed). You can conduct parameter configuration for
UTG4000A function/arbitrary waveform generator to output pulse waveform with variable
pulse width and edge time. The default duty ratio of pulse wave is 50% when powering on.
Rising/falling edge time of UTG4162A is 5ns (UTG4122A is 6ns/ UTG4082A is 7ns). The
specific steps for setting pulse wave with period of 2ms, amplitude of 1.5Vpp, DC offset of
0V, duty ratio (restricted by minimum pulse width specification 10ns) of 25%, rising edge
time of 200µs and falling edge time of 200µs are as follows:
Press Pulse, Freq, Amp, Duty, Rise and Fall (if tag is not highlighted, press
corresponding soft function key to select), and press soft key Freq twice to switch between
frequency and period. Input the required value, and then select the unit. When inputting
value of duty ratio, input 25 and press % to finish input. To set falling edge time, please
press soft key Page Up/Down or rotate multi-functional knob rightward when sub-tag is
selected to display the next screen of sub-tags (the edge of sub-tag “selected” is the color of
channel, the sub-tag is “edited” when highlighted, such as white letters on a blue
background in the figure below), press soft key Fall to input the required value and select
the unit.
Note: this parameter can also be set with multi-functional knob and direction key.
Figure 2- 8 Set falling edge time
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