SN65DP159: schematic check

GARETH OU

Mastermind 8835 points

Part Number: SN65DP159

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

Thanks you

Crete_TGLH_2DVI (002).pdf

a. HDMI_SEL# High: Will I be unable to use I2C over AUX?

b. HDMI_SEL# Low: Does the DP-HDMI Adaptor ID have any effect? (DVI CONN at the end)

over 2 years ago

0 David (ASIC) Liu over 2 years ago

TI__Guru*** 140195 points

Hi,

1. Please have SCL_SRC and SDA_SRC pulled to ground

2. Recommend having I2C access to the DP159 for debugging purpose

3. Change 0.1uF on the OE pin to 0.22uF

4. Do you need ESD protection on the DVI output?

5. Please double check the input and output lane order and make sure it is correct?

Thanks

David

0 GARETH OU over 2 years ago in reply to David (ASIC) Liu

Mastermind 8835 points

Hi David

Thanks for you reply

How about HDMI_SEL# usage is ?

Change 0.1uF on the OE pin to 0.22uF

Here SPEC has suggestion by using 0.1uf.

Is there any timing issue with 0.1uF ?

0 David (ASIC) Liu over 2 years ago in reply to GARETH OU

TI__Guru*** 140195 points

Hi,

You can use 0.1uF cap on the OE pin as long as you can meet the TD2 power up timing requirement listed in the DP159 datasheet.

In the schematic, the DP159 output is MUXed to a HDMI_DOCK and a DVI connector.

DVI vs HDMI is just the adapter ID. I see no risk sending HDMI when HDMI_SEL is low.

But when HDMI_SEL is set to DVI, the source will likely not enable audio and the source may also limit the datarate to 1080p. Will this be an issue for the HDMI_DOCK connection?

Thanks
David

0 GARETH OU over 2 years ago in reply to David (ASIC) Liu

Mastermind 8835 points

Hi David

In the schematic, the DP159 output is MUXed to a HDMI_DOCK and a DVI connector.

The connecter of dock is also DVI type.
There are two DVI connecters in our system.

We’ll set HDMI_SEL# low as default.

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SN65DP159: schematic check