DS90UB913A-Q1: DS90UB913A PLCK 40MHz

Eric Chen4

Expert 2370 points

Part Number: DS90UB913A-Q1

Hi,

Now we have a project to use DS90UB913A & DS90UB914A but we find some problem as below.

1. 913A use 40MHz PCLK from image sensor

2. find 914A PCLK is 80MHz --> Is it right?

Regards,

Eric

over 8 years ago

0 Steven(Shenzhen) Shi over 8 years ago

TI__Mastermind 30515 points

not, the PCLK in UB913a's PCLK pin should be same in the UB914a's PCLK pin.

best regards,
Steven

0 Eric Chen4 over 8 years ago in reply to Steven(Shenzhen) Shi

Expert 2370 points

Hi Steven,

May I have your support to review our 913A/ 914A schematic as attached?

We still got PCLK *2 output on 914A, so maybe some define issue.

Would you kinldy provide your suggestion for our check again?

Thanks.

ds90ub913_914_sch.pdf

Regards,

Eric

0 Eric Chen4 over 8 years ago in reply to Eric Chen4

Expert 2370 points

Hi Steven,
Would you have any suggestion for our reference?
Thanks.

Regards,
Eric

0 Steven(Shenzhen) Shi over 8 years ago in reply to Eric Chen4

TI__Mastermind 30515 points

Eric,
I can't get more clues from your sch.
Please capture the PCLK in UB913's PCLK pin, UB913's output signal, UB914's PCLK pin signal. also, please capture the mode_sel voltage in your real board. we can check it step by step based on d/s guideline.

best regards,
Steven

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DS90UB913A-Q1: DS90UB913A PLCK 40MHz