Keysight N5990A MIPI M-PHY Receiver Test User Guide 249PWM Tests 7ProcedureThe data generator sends Burst-mode CJTPAT signaling with nominalamplitude settings while the DUT is configured for Terminated-mode.Then, the TTERM-OFF-PWM-RX (PWM-RX differential termination disabletime) is measured using a real time oscilloscope. Among all measuredTTERM-OFF-PWM-RX values, the maximum and minimum TTERM-OFF-PWM-RXvalues are considered as the final results.The test will pass if the maximum TTERM-OFF-PWM-RX value measured isless than the time defined by the DUT's Sleep Time capability attribute.This test is performed at each selected lane and PWM gear and it is testedat the minimum and maximum data rate value for all gears.Connection DiagramRefer to the connection diagrams shown in the Connection Diagramsection of the Test 2.1.4-HS-RX Differential Termination Enable Time test.ParametersThe parameters used in Expert Mode for this test, are as follows:• 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”)• Lane Under Test Termination Mode• Semi Automated Test• Set Single Ended Amplitude• Set Offset• Prepare Length• Sleep Length [UI]• Sleep Time Capability [SI]• IBerReader Init ModeThese parameters are listed in alphabetical order in Table 6.
