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SAVING FILES
There are three ways to save an image in ADC Analyzer. Choose
File > Save As > Save Active to save the active window in bitmap
or jpeg format. Choose File > Save As > Save List to save each
open window as a separate bitmap file. To save the entire screen
as a bitmap file, choose File > Save As > Save Screen.
ADDITIONAL FUNCTIONS (VIRTUAL ADC ONLY)
The following function is available only while using the virtual
evaluation board feature. This feature is disabled when
operating in any of the normal buffer memory configurations.
Figure 15. Sweep Mode Options
From the main menu, select Sweep. There are two choices:
Analog Frequency Sweep and Analog Amplitude Sweep.
Selecting either one of these opens the appropriate
configuration window.
AMPLITUDE SWEEP (VIRTUAL ADC ONLY)
When this option is chosen, the form shown in Figure 16 is
displayed. Use this form to select the options for an amplitude
sweep. The frequency for the amplitude sweep is set on the
ADC Modeling form under the Input tab, and must be set
prior to selecting this option.
Figure 16. Amplitude Sweep Mode Options
HSC-ADC-EVALA-SC/HSC-ADC-EVALA-DC
Start Amplitude (dB): This sets the starting level of the
amplitude sweep. This is relative to the dc fullscale of the
converter. This number should always be lower than the stop
amplitude.
Stop Amplitude (dB): This sets the stopping level of the
amplitude sweep. This is relative to the dc fullscale of the
converter. This number should always be larger than the start
amplitude.
Step Size (dB): This is the step size used for each amplitude
step. This number should always be positive. There is no limit to
the size of the step. However, the smaller the step, the longer the
sweep will require to complete. Likewise, the larger the step, the
lower the resolution of the sweep.
Reference Line: This draws a reference line used for
comparison of the SFDR of the unit.
SNR Reference Line: This draws a reference line used for
comparison of the SNR of the unit.
FFT: The FFT selection determines if single or average FFTs are
used during the sweep.
SFDR vs. Amplitude: Selecting this check box enables SFDR
versus amplitude results.
SNR vs. Amplitude: Selecting this check box enables SNR
versus amplitude results.
2nd Harmonic: Selecting this check box enables 2
versus amplitude results.
3rd Harmonic: Selecting this check box enables 3
versus amplitude results.
4th Harmonic: Selecting this check box enables 4
versus amplitude results.
5th Harmonic: Selecting this check box enables 5
versus amplitude results.
6th Harmonic: Selecting this check box enables 6
versus amplitude results.
Worst Other Spur: Selecting this check box enables worst other
spur versus amplitude results.
Results Fullscale: Selecting this check box refers all
measurements to fullscale (dBFS). When this is not selected, the
measurements are relative to the signal (dBc).
Datalog to Disk: Selecting this check box writes all data to a file
in the default data directory. The data format is an ASCII
readable CSV file.
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harmonics
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harmonics
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harmonics
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harmonics.
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harmonics
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