Agilent Technologies 33250A User Manual page 167

• This command affects the period (and frequency) for all waveform
functions (not just pulse). For example, if you select a period using the
PULS:PER command and then change the function to sine wave,
the specified period will be used for the new function.
• Function Limitations: If you change to a function whose minimum
period is greater than that for a pulse waveform, the period is adjusted
to the minimum value allowed for the new function. For example,
if you output a pulse waveform with a period of 50 ns and then change
to the ramp function, the function generator will automatically adjust
the period to 1 µs (the lower limit for ramps). From the remote
interface, a "Settings conflict" error will be generated and the period
will be adjusted as described.
PULSe:WIDTh {<seconds>|MINimum|MAXimum}
PULSe:WIDTh? [MINimum|MAXimum]
Set the pulse width in seconds. 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. You can vary the pulse width from 8 ns to
2000 seconds (see restrictions below). The default pulse width is 100 µs.
MIN = 8 ns. MAX = 2000 seconds. The :WIDT? query returns the pulse
width in seconds.
• The minimum pulse width is affected by the period.
For period > 20 seconds, minimum pulse width = 1 µs
For period > 200 seconds, minimum pulse width = 10 µs
• The specified pulse width must be less than the difference between
the period and the edge time as shown below. The function generator
will adjust the pulse width as needed to accommodate the specified
period. From the remote interface, a "Settings conflict" error will be
generated and the pulse width will be adjusted as described.
Pulse Width < Period – (1.6 X Edge Time)
• The pulse width must also be greater than the total time of one edge
as shown below.
Pulse Width > 1.6 X Edge Time
Chapter 4 Remote Interface Reference
Pulse Configuration Commands
4
167