Technical data

Measure Commands 24
Agilent Infiniium 90000 Series Oscilloscopes Programmer's Reference 477
:MEASure:DDPWS
(Data Dependent Pulse Width Shrinkage)
Command
:MEASure:DDPWS <source>
The :MEASure:DDPWS command measures the data dependent pulse width
shrinkage for the selected source.
<source> {CHANnel<N> | FUNCtion<N> | WMEMory<N> | CLOCk | MTRend |
MSPectrum | EQUalized}
MTRend and MSPectrum sources are only available if the oscilloscope has
the EZJIT option installed and the feature is enabled.
The CLOCk source is only available if the oscilloscope has the High Speed
Serial option installed and the feature is enabled.
The EQUalized source is only available if the oscilloscope has the High
Speed Serial option and the Serial Data Equalization option installed and
the features are enabled. This command uses the Feed- Forward Equalized
(FFE) signal as the source.
<N> CHANnel<N> is an integer, 1- 4.
FUNCtion<N> and WMEMory<N> are:
An integer, 1- 4, representing the selected function or waveform memory.
Example This example measures the data rate of channel 1.
myScope.WriteString ":MEASure:DDPWS CHANnel1"
Query :MEASure:DDPWS? <source>
The :MEASure:DDPWS? query returns the measured data dependent pulse
width shrinkage.
Returned Format
[:MEASure:DDPWS] <value><NL>
<value> Data dependent pulse width shrinkage in seconds for the selected source.
Example This example places the current data dependent pulse width shrinkage
value of the channel 1 waveform in the numeric variable, varValue, then
prints the contents of the variable to the computer's screen.
myScope.WriteString ":SYSTEM:HEADER OFF" ' Response headers off.
myScope.WriteString ":MEASURE:DDPWS? CHANNEL1"
varValue = myScope.ReadNumber
Debug.Print FormatNumber(varValue, 0)
NOTE
This command is only available when the E2681A Jitter Analysis Software or the
N5400A/N5401A Software is installed.