3152B User Manual
Publication No. 980935 Rev. A
5-96 Programming Reference
EADS North America Test and Services
DPULse:HIGH <high>(?)
HS Syntax: 0146A<float>(?)
Description
Programs the interval the pulse will dwell on the high level value. Although they may sound similar, the high
time and pulse width are significantly different. The standard terminology of pulse width defines the width of
the pulse at the mid-point of its peak-to-peak amplitude level. Therefore, if you change the rise and fall time,
the pulse width changes accordingly. The digital pulse high time parameter defines how long the pulse will
dwell on the high level so even if you change the rise and fall times, the high time remains constant. The
pulse high time is programmed in units of seconds.
Parameters
Name
Range
Type
Default
Description
<high>
0 to 1e3
Numeric
1e-3
Sets the width of the high time for the pulse shape in
units of seconds. Note that the sum of all parameters,
including the high time must not exceed the
programmed pulse period and therefore, it is
recommended that the pulse period be programmed
before all other pulse parameters.
Response
The 3152B returns the current high time value in units of seconds
DPULse:POLarity {NORMal|COMPlemented|INVerted (?)
HS Syntax: 0186A<0|1|2|>(?)
Description
Programs the polarity of the pulse in reference to the base line level. The polarity options are: Normal, where
the pulse is generated exactly as programmed; Inverted, where the pulse is inverted about the 0 level base
line; and Complemented, where the pulse is inverted about its mid amplitude level.
Parameters
Name
Type
Default
Description
NORMal
Discrete
NORM
Programs normal pulse output
COMPlemeted
Discrete
Programs complemented pulse output
INVerted
Discrete
Programs an inverted pulse output
Response
The 3152B returns NORM, COMP or INV depending on the current polarity setting
DPULse:PERiod <period>(?)
HS Syntax: 0149A<float>(?)
Description
Programs the pulse repetition rate (period). Note that the sum of all parameters, including the pulse delay,
rise, high and fall times must not exceed the programmed pulse period and therefore, it is recommended that
the pulse period be programmed first before all other pulse parameters. Note that by selecting the double
pulse mode, the pulse period remains unchanged.
Parameters
Name
Range
Type
Default
Description
<period>
80e-9 to 1e6
Numeric
10e-3
Programs the period of the pulse waveform in units of
seconds.
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