DS90UB949-Q1: how to synchronously detect that DS90UB948-Q1 happens unlock?

Jingkun Wang

Intellectual 295 points

Part Number: DS90UB949-Q1
Other Parts Discussed in Thread: DS90UB948-Q1,

Hello TI team:

If DS90UB948-Q1 happens unlock, how could DS90UB949-Q1 synchronously detect?

Best Regards!

over 3 years ago

0 Logan Cummins over 3 years ago

TI__Guru 66810 points

Hi Jingkun

Lock status is effectively communicated back from the DES to the SER by the back-channel. In short, if the BC fails to tell the SER it is locked, then SER will present loss of lock.

Regards

Logan

0 Jingkun Wang over 3 years ago in reply to Logan Cummins

Intellectual 295 points

Hi Logan,

But it has the time difference from the back-channel's info.
Does it have the method to solve the issue of time difference?

Best Regards!

0 Logan Cummins over 3 years ago in reply to Jingkun Wang

TI__Guru 66810 points

Hi Jingkun,

I'm not sure I follow the question, are you asking/commenting about the delay between lock being lost and when it is reported on the SER side?

Regards,

Logan

Interface

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DS90UB949-Q1: how to synchronously detect that DS90UB948-Q1 happens unlock?