Keysight N5990A MIPI M-PHY Receiver Test User Guide 231Squelch Tests 6When using UniPro Test Mode, it is observed that the DUT gets into TestMode and starts sending FILLER symbols back.The DUT should not exit the hibernate as long as the pulse distance isabove the squelch detection limit (500ns) in order to be consideredconformant.Connection DiagramRefer to the connection diagrams shown in the Connection Diagramsection of the Test 2.4.3-SQ-RX Squelch Exit Voltage (VSQ) test.ParametersThe parameters used in Expert Mode for this test, are as follows:• Data Rate• CDR Loop Bandwidth (if CDR is selected in the Special Parameterdialog, see “BERT Analyzer Settings”)• CDR Peaking (if CDR is selected in the Special Parameter dialog, see“BERT Analyzer Settings”)• CDR Transition Density (if CDR is selected in the Special Parameterdialog, see “BERT Analyzer Settings”)• CDR Loop Order (if CDR is selected in the Special Parameter dialog,see “BERT Analyzer Settings”)• Target BER• IBerReader Init Mode• Squelch Test Sequence• Re-Init sequence after Reset DUT• Min Value• Max Value• Step Size• Set Single Ended Amplitude• Tested Offsets• Number of Pulses• Pulse WidthThese parameters are listed in alphabetical order in Table 6.DependenciesThe calibrations required for this test are as follows:
