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DS90UB962-Q1: AEQ_LOCK_MODE

Ryan Wang
Expert 7495 points
Part Number: DS90UB962-Q1

Dear expert.

What does AEQ_LOCK_MODE mean? Does "1" mean longer time to LOCK but more stable? "0" mean quick but nonoptimized LOCK?

"AEQ_LOCK_MODE: Adaptive Equalizer lock mode
When set to a 1, Receiver Lock status requires the Adaptive
Equalizer to complete adaption.
When set to a 0, Receiver Lock is based only on the Lock circuit
itself. AEQ may not have stabilized."

  • 0
    TI__Expert 6345 points

    Hello Ryan,

    "1" does not necessarily mean "longer lock time." It just means that in order for the receiver to establish lock status, the AEQ must have completed adaption. If it is taking longer for the AEQ to stabilize, then the lock time may be longer. You can adjust the max and min AEQ gain settings to achieve faster adaption and lock. Please refer to sections, "7.4.7.3.2 AEQ Range," "7.4.7.3.3 AEQ Timing," and "7.4.7.3.4 AEQ Threshold" in the DS90UB962 datasheet for more information and details on this. Setting to "0" just means that the AEQ may or may not completely stabilize and finish adaption before the lock status is established.

    Best Regards,

    Shruti