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Keysight N5990A MIPI M-PHY Receiver Test User Guide
3
Calibrations and Test Procedures
Procedure Parameters
Procedure Parameters are parameters that do not fall into one of the
previously described categories. They are shown on the right side of the
N5990A user interface when the selected entry of the procedure tree on
the left is an individual procedure. They only change the behavior of that
single procedure. Procedures often have parameters with the same name,
but set settings always apply on the selected procedure, and the meaning
may be slightly different. These parameters are listed in
Table 6
Procedure Parameters
Parameter Name
Parameter Description
Accumulated Voltage Eye Opening
It is the accumulated voltage set in the data generator to get the desired Eye Opening.
Additional Jitter Frequencies
These are additional jitter frequency points beside the frequency range, where the actual jitter amplitude is
measured.
Additional Steps
These are additional steps to be performed for the test.
Amplitude
It is the differential voltage amplitude of the tested/calibrated data signal.
Amplitude Range
It is the range of the amplitude values to be tested. It is defined with four values separated by semicolons:
<Start Value>;<End Value>;<Number of Steps>;<Scale Type>. The scale type can be Linear or Logarithmic.
Analysis Method
It exists for Low Frequency RJ Calibration and it can be selected as “Spectral” or “Tailfit”. Refer to the
Scope
manual
for more details as it is related to the EZJit Plus software.
BER Target
The target BER used in the calibration/procedure.
Check Pattern
It can be “True”/”False”. If “True”, the selected BER reader is used to verify that the DUT is in loopback mode
and transmitting the test pattern properly.
CMI Amplitudes
It is the range of the common-mode interface values to be tested over the jitter frequency range. They must be
separated by semicolons.
CMI Frequency
It is the common mode interference frequency value.
Common Mode Voltage Levels
These are the common mode voltage levels to be tested.
Custom Data Rate
It displays the custom data rates added by the user, using the “Custom HS DR” button (see
).
Data Rate
It is the data rate for the selected GEAR.
Data Rate Deviation over Nominal
Value
It is the deviation value of the data rate across the nominal value.
Deterministic Jitter
It is the deterministic jitter amplitude value.
Differential Voltage Start Value
It is the first and maximum differential voltage to be calibrated.
Eye Width Target
It is the eye width to be calibrated.
Summary of Contents for N5990A
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