Keysight Technologies N5990A, User Manual

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114 Keysight N5990A MIPI M-PHY Receiver Test User Guide
4 Calibrations
When the DSGA is used, two calibrations are required at each data rate:
one for Data0 and another one for the other channels. The calibration for
Data0 includes the switch. For the other channels, Data1 is calibrated
without the switch.
Procedure
The pattern generator does a sweep of the low frequency random jitter
values starting with the Min Jitter Value and increases using the Step Size
value until the specified Max Jitter Value is reached. The Short Term
Random Jitter is kept stable at 100 hemUI. T Oscilloscope measures the
actual random jitter value at each step and then the set and actual jitter
values are stored.
Connection Diagram
Refer to the connection diagrams shown in the Connection Diagram
section of the ISI (w/Switch) Calibration test.
Parameters
The 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 Chan2
These parameters are listed in Table 6 .
Dependencies
The procedure required for this method is Short Term RJ Calibration.