SN75DP130: AUX_SNKp/n AC couple

F.N

Part Number: SN75DP130

Hi team,

My customer sent us the following two questions.
Please let me know the answers.

① Does SN75DP130 AUX_SNKp/n need AC couple?

② In the display port standard AUX_SNKp/n are specified to be AC couple I suppose,
   but the SN75DP130EVM board is not an AC couple as to AUX_SNKp/n.

   Does the problem occur with AUX_SNKp/n AC couple in SN75DP130?

Best regards,
Fumio Nakano

over 6 years ago

0 Moises Garcia over 6 years ago

TI__Mastermind 23815 points

Hi Fumio,

The AUX channel is AC coupled, then it has pull-up/pull-down according to sink or source application.

The DP130 main application is in source devices, the AC caps are placed before the DP130 and the 100k pull-up/pull-down are placed after the DP130, those componenets are placed in the DP130EVM.

Regards

0 F.N over 6 years ago in reply to Moises Garcia

TI__Expert 8760 points

Hi Garcia-san,

Thank you for your quick reply.
Your reply was very helpful.
Thank you!!

Best regards,
Fumio Nakano

Interface

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SN75DP130: AUX_SNKp/n AC couple