Keysight Technologies 33210A - Page 205

Remote Interface Reference 4
Keysight 33210A User’s Guide 205
FUNCtion:PULSe:DCYCle {<percent>|MINimum|MAXimum}
FUNCtion:PULSe:DCYCle? [MINimum|MAXimum]
Set the pulse duty cycle in percent. The the pulse duty cycle is defined as:
Duty Cycle = 100 × Pulse Width ÷ Period
where the pulse width represents the time from the 50% threshold of the rising
edge of the pulse to the 50% threshold of the next falling edge.
The pulse duty cycle range is 0 percent to 100 percent. However, the pulse duty
cycle is limited by minimum pulse width and edge time restrictions, which prevent
you from setting exactly 0 percent or 100 percent. For example, for a 1 kHz pulse
waveform, you are typically restricted to pulse duty cycles in the range 0.002
percent to 99.998 percent, limited by the minimum pulse width of 40 ns.
The default pulse duty cycle is 10 percent. MIN is approximately 0%. MAX is
approximately 100%. The :DCYC? query returns the pulse duty cycle in percent.
The width and edge restrictions are described below:
– The specified pulse duty cycle must conform to the following restrictions
determined by the minimum pulse width (Wmin). The function generator will
adjust the pulse duty cycle as needed to accommodate the specified period.
From the remote interface, a “Data out of range” error will be generated and
the duty cycle will be adjusted as described.
Duty Cycle >
100 × Wmin ÷ Period
and
Duty Cycle <
100 × (1 – Wmin ÷ Period)
where:
Wmin = 40 ns for period <
10 s.
Wmin = 200 ns for period > 10 s, but <
100 s.
Wmin = 2 µs for period > 100 s, but <
1000 s.