Rigol DG4062, User Manual

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Chapter 2 Basic Waveform Output RIGOL
DG4000 User's Guide
2-15
The pulse width and pulse duty cycle are correlative. Once a parameter is changed,
the other will be automatically changed. The pulse duty cycle is limited by the
"Minimum Pulse Width" and "Pulse Period".

Pulse Duty Cycle ≥ Minimum Pulse Width ÷ Pulse Period × 100%

Pulse Duty Cycle ≤ (1 - 2 × Minimum Pulse Width ÷ Pulse Period) × 100%
Press
Width/Duty to highlight "Width". At this point, use the numeric keyboard
to input the desired value and select the desired unit from the pop-up unit menu or
use the direction keys and knob to modify the current value.

For the input method of the value, refer to the introduction in "
Parameter
Setting Method".

Selectable Pulse Width units: sec, msec, μsec, nsec.

Press this softkey again to switch to the duty cycle setting.
Leading/Trailing Edge Time
The leading (rising) edge time is defined as the time required for the pulse
amplitude to rise from 10% threshold to 90% threshold; while the trailing (falling)
edge time is defined as the time required for the pulse amplitude to fall from 90%
threshold to 10% threshold as shown in the figure above.
The range of the leading/trailing edge time is limited by the pulse width currently
specified as shown in the formula below. DG4000 will automatically adjust the
edge time to match the specified pulse width if the value currently set exceeds the
limit value.
Leading/Trailing Edge Time ≤ 0.625 × Pulse Width
Press Leading (or Trailing) to highlight the softkey. Use the numeric keyboard to
input the desired value and select the desired unit from the pop-up unit menu or
use the direction keys and knob to modify the current value.

For the input method of the value, refer to the introduction in " Parameter
Setting Method".

Selectable leading/trailing edge time units: sec, msec, μsec and nsec.

The leading edge time and trailing edge time are independent from each other
and users can set them separately.