Keysight Technologies N5990A, User Manual

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Keysight N5990A MIPI M-PHY Receiver Test User Guide 223
Squelch Tests 6
When using UniPro Test Mode, the observable is that the DUT gets into
Test Mode and starts sending FILLER symbols back.
The measured value of TSQ must be less than or equal to T_Activate in
order to be considered conformant.
Connection Diagram
Refer to the connection diagrams shown in the Connection Diagram
section of the Test 2.4.3-SQ-RX Squelch Exit Voltage (VSQ) test.
Parameters
The parameters used in Expert Mode for this test, are as follows:
• Data Rate
• CDR Loop Bandwidth (if CDR is select in Special Parameter dialog, see
“BERT Analyzer Settings” )
• CDR Peaking (if CDR is select in Special Parameter dialog, see “BERT
Analyzer Settings” )
• CDR Transition Density (if CDR is select in Special Parameter dialog,
see “BERT Analyzer Settings” )
• CDR Loop Order (if CDR is select in Special Parameter dialog, see
“BERT Analyzer Settings” )
• Target BER
• IBerReader Init Mode
• Squelch Test Sequence
• Re-Init sequence after Reset DUT
• T Activate capability
• Min Value
• Max Value
• Step Size
• Set Single ended Amplitude
• Tested Offsets
• Number of Pulses
• Pulse Distance
• Pulse Width
These parameters are listed in alphabetical order in Table 6 .