DS90UB953-Q1: DS90UB953-Q1 @5Mpixel, 60fps, 10-bit Color

Gus Fantanas

Part Number: DS90UB953-Q1

I want to interface an ON Semiconductor AR0521D to a DS90UB953-Q1 serializer and a matching deserializer. The data sheet for the AR0521D claims the camera chip outputs four lanes of CSI-2 plus the clock. At 5Megapixels, it supports 60fps at only 10 bit color depth. If I choose that mode, the aggregate data rate will be a little over 3Gps, which the DS90UB953-Q1 should support easily (the datasheet even shows a very respectable eye diagram @4Gbps, on. p. 13). What concerns me is that the datasheet for the DS90UB953-Q1 only talks about 2MP @60fps and other image formats which I am not using. But CSI-2 is CSI-2 and I don't see why the DS90UB953-Q1 would not support my application, but I just want to make sure I am not missing something subtle about the CSI-2/DPHY.

over 5 years ago

0 Mike Leister over 5 years ago

TI__Intellectual 1565 points

Hi Gus,

Sorry for the delay. I got some time with the responsible engineer, and he confirms that 60fps at 10 bit color depth can be run.

Mike

0 Mike Leister over 5 years ago in reply to Mike Leister

TI__Intellectual 1565 points

Hi Gus,
In a follow-up discussion with the 953 engineer, he mentioned that you need to include blanking time in your pixel calculations, which can add up to 20%. Make sure that the total is within 953 capability.
Mike

0 Gus Fantanas over 5 years ago in reply to Mike Leister

Prodigy 30 points

Thank you. When you say "can add up to 20%," do you mean "add up to 20% data rate?" If yes, that would be in addition to the overhead added by the scrambling scheme of the '953?

0 Mike Leister over 5 years ago in reply to Gus Fantanas

TI__Intellectual 1565 points

Yes, and yes.

Mike

0 Gus Fantanas over 5 years ago in reply to Mike Leister

Prodigy 30 points

Thank you!

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DS90UB953-Q1: DS90UB953-Q1 @5Mpixel, 60fps, 10-bit Color