114 Keysight N5990A MIPI M-PHY Receiver Test User Guide4 CalibrationsWhen the DSGA is used, two calibrations are required at each data rate:one for Data0 and another one for the other channels. The calibration forData0 includes the switch. For the other channels, Data1 is calibratedwithout the switch.ProcedureThe pattern generator does a sweep of the low frequency random jittervalues starting with the Min Jitter Value and increases using the Step Sizevalue until the specified Max Jitter Value is reached. The Short TermRandom Jitter is kept stable at 100 hemUI. T Oscilloscope measures theactual random jitter value at each step and then the set and actual jittervalues are stored.Connection DiagramRefer to the connection diagrams shown in the Connection Diagramsection of the ISI (w/Switch) Calibration test.ParametersThe parameters used in Expert Mode for this calibration, are as follows:• Lane Under Test Termination Mode• Oscilloscope Bandwidth• Amplitude• Short Term Random Jitter• Min Jitter Value• Max Jitter Value• Step Size• Analysis Method• Scope RJrms• Use Infiniisim• Transfer Function Chan2• Filter Delay Chan2• Max Time Span Chan2These parameters are listed in Table 6.DependenciesThe procedure required for this method is Short Term RJ Calibration.
