AD9375 DPD error status 13

Are you in FDD mode or TDD mode? If you donot use a burst kind of signal, are you still seeing this error? Can you try disabling TXLOL tracking cal and then test?

> Are you in FDD mode or TDD mode?
I can’t understand FDD mode and TDD mode.
txRxPinMode and orxpinmode is zero.
I think it is FDD mode.

> If you donot use a burst kind of signal, are you still seeing this error?
No.

Please reply our question.

Have you tried by disabling the LOL tracking cal? Can you increase to burst time to 1msec and check if you are seeing the same issue? Tracking cals needs at least 800usec of time to update. 

Thank you for your reply.

In my understanding, this behavior is correct becasuse the burst time is too short (1 OFDM symbol of LTE).

We will try the disabling the LOL tracking and increase the burst time to 1msec.

I want to confirm.
When I will disable the LOL tracking cal, how the behavior will be changed?

I want to confrim this sutatus behavior.
> Is this status, the dpd actuator is not stopped?
> In my understanding, the dpd actuator is active but coefficient values are not updated.

Toshihiro said:

When I will disable the LOL tracking cal, how the behavior will be changed?

DPD cal is part of tracking cal and the scheduler schedules the different cals as per priority and availability of ORx path. When you disable other tracking cals , DPD cal gets to run more often.

If the captured sample period is less than 800 usec the tracking cals do not update.

Thank you for reply. I can't understand the purpose to disable the LOL tracking.
We will test after other checking.

I want to confirm the behavior when this error status is happened.
(Estimation block is suspened, compensation block is active, etc.)

The DPD tracking and the LOL tracking requires 800usec of capture data for run. So in that case, check by increasing the signal's burst time to 1msec and then check if you are still seeing the issue?