DS90UB947-Q1: PCLK bandwidth typo in datasheet

Zirui Su

Part Number: DS90UB947-Q1

Hi team,

I would like to ask that is there a typo about PCLK range in datasheet? I remember there is something wrong with the single link and dual link PCLK bandwidth but do not remember whether it is the 947 device, so I ask it for your confirm, thank you.

So what value should we refer to? The 96Mhz single link or 85Mhz single link? Thank you.

over 3 years ago

0 Casey McCrea over 3 years ago

TI__Guru** 103215 points

Hello Zirui,

The datasheet is correct. Single link can take up to 96MHz and dual link can take up to 170MHz

Best Regards,

Casey

0 Zirui Su over 3 years ago in reply to Casey McCrea

TI__Expert 5340 points

Hi Casey,

Thanks for clarify and may I know why when we use dual link the 947 could only support up to 170Mhz rather than single link PCLK*2=192Mhz?

0 Casey McCrea over 3 years ago in reply to Zirui Su

TI__Guru** 103215 points

Hello Zirui,

The 947 digital architecture related to conversion of OLDI to FPD in dual OLDI merge is only designed to handle 170MHz PCLK max. Also this is the maximum PCLK we have validated the part for

Best Regards,

Casey

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DS90UB947-Q1: PCLK bandwidth typo in datasheet