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SN65DP159: schematic check

GARETH OU

Guru 11385 points

Part Number: SN65DP159

Hi

Could you help check the SN65DP159 schematic as below and any need to adjust

Thanks you

TI_SN65DP159RGZT.PDF

over 4 years ago

0 David (ASIC) Liu over 4 years ago

TI__Guru**** 176681 points

Hi,

Please see attached for my review comment.

TI_SN65DP159RGZT_TI_Reviewed_07142021.pdf

Thanks

David

0 GARETH OU over 4 years ago in reply to David (ASIC) Liu

Guru 11385 points

Hi David

Thanks for your review and recommend.

The following is a modified schematic, please help to confirm again!

ES-3610G_TI_SN65DP159RGZT.PDF

But there are questions to ask

1.Does source support clock stretching? May need to consider adding the DDC snooping option

Sorry, this is what does this mean?

2,Don't populate external pullup on the OE pin

This is the line follow CRB, OE pin is not on the path reservation SLP_S0 member, using a pull high RC delay OE pin

0 David (ASIC) Liu over 4 years ago in reply to GARETH OU

TI__Guru**** 176681 points

Hi,

1. Please see this block diagram for the DDC snooping implementation. SCL_SRC and SDA_SRC must be pulled to ground when implementing the snooping function.

2. The DP159 has an internal pullup, you don't need the external pullup for the RC delay.

Thanks

David