Jackson Labs PHASE STATION 53100A, Руководство пользователя

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PhaseStation 53100A User’s Manual V1.04 25-Apr-2022 110
Legend Menu
The Legend menu contains only one command, Legend→Select (d) . This command opens a dialog box
in which you can choose which attributes are displayed for each visible plot in the legend table beneath
the main graph. Some properties are flagged for display in the legend table by default, while others will
not be displayed until you select them explicitly.
Each TimeLab acquisition driver can contribute its own entries to the Legend →Select dialog based on
the property values in the plots that it generates. When a plot is acquired or loaded from a .TIM file,
TimeLab checks for the presence of any displayable properties that it hasn’t yet encountered. Any
unfamiliar properties are logged in
TIMELAB.INI
and added to the selection menu.
As a result, the content of the Legend →Select menu may vary from one TimeLab installation to the next.
(Note that after you select a property for display in the legend table, its value will be blank for all plots
that don’t include that particular property.)
As with other data stored in TIMELAB.INI , reinstalling TimeLab does not erase the list of known
Legend →Select menu entries. These entries can be cleared only by manually editing or deleting
TIMELAB.INI , or by using File → Reset all parameters, options, and settings at next startup . Refer to the
latter command for more information about TIMELAB.INI .
The list of currently-defined .TIM file properties appears below. Many of these options are ‘private’ to a
specific hardware driver and are not eligible for display on the legend table. They are listed here for
reference only. A few of the properties are defined by TimeLab itself and will appear on the
Legend →Select menu by default in all installations.
Acquired Number of acquired phase data points used for stability and
deviation plots
ADC Clock Specified, estimated, or measured acquisition clock rate in Hz
ADC Format Data format used by ADCs
ADC Temperatures Average ADC temperature with individual deviations
Add'l AM Gain Optional user-specified gain value added to AM noise traces
Add'l PN Gain Optional user-specified gain value added to phase noise traces
Address Address of instrument used to acquire data
Attenuate Instrument Spurs True if known instrument spurs are suppressed automatically
Auto Clock True if the clock frequency was determined automatically
Auto DUT True if the DUT frequency is considered to be the frequency at the
instrument input jack
Auto Input True if the input frequency was measured automatically
Auto Ref True if the reference frequency was measured automatically
Automatic Configuration True if the TimeLab driver should infer various measurement
parameters based on the incoming data
Autoscale Deviation True if statistical deviation graph should automatically accommodate
the extents of all visible traces
Autoscale Noise True if noise graph should automatically accommodate the extents of
all visible traces
Autosense Rate True if the TimeLab driver should automatically measure the sample
interval
Beatnote Amplitude in dBm of calibration beatnote
Bin Density Determines the number and distribution of tau intervals in
statistical deviation measurements
Bin Threshold Minimum number of data points required to display the statistical
deviation at a given tau
BIST Result Result of last built-in self test operation
BW Index Index or other identifier for a given measurement bandwidth
Cancel CM Drift True if common-mode drift (e.g., due to ADC clock warmup) is
corrected in software
Ch 0 Auto True if Ch 0 frequency should be measured automatically
Ch 0 Freq Specified input frequency for channel 0
Ch 0 Label User-assignable label for source connected to instrument channel 0