SN75DP139: DP++ to DP and HDMI conversion

ramyakrishna kunala

Part Number: SN75DP139
Other Parts Discussed in Thread: TS3DV642, HD3SS214, SN75DP126

hi,

Is there any IC available, which gives Display port and HDMI as outputs on two different buses by taking dual mode display pins as input. Is it possible to do so.

over 4 years ago

0 David (ASIC) Liu over 4 years ago

TI__Guru**** 176811 points

Hi,

You would need a hub that can support DP++ on both its upstream and downstream port. On one downstream port, you can then use DP139, DP149, DP158, or DP159 to convert from DP++ to HDMI.

Unfortunately, we do not have a hub solution.

Thanks

David

0 ramyakrishna kunala over 4 years ago in reply to David (ASIC) Liu

Prodigy 90 points

can you elaborate more about hub. I have a comX module which supports dual mode capable DDI port. Can i make use of any IC so that i get both HDMI and Displayport(not at the same time) from that dual mode display port. Does TS3DV642A0RUAR converts DP++ to DP and HDMI.

+1 David (ASIC) Liu over 4 years ago in reply to ramyakrishna kunala

TI__Guru**** 176811 points

Hi,

The TS3DV642 is a passive MUX and does not covert from DP++ to DP or HDMI. If DP++ is on the TS3DV642 input, then you will have DP++ on the output as well.

The DP++ supports DP and HDMI (not at the same time) and depends on the status of CONFIG1 or Cable Adaptor Discovery. The cable adaptor (DP139) supports DP++ to HDMI. If CONFIG1 is above min 0.7*DP_PWR, then the cable adaptor is present and converts DP++ signal to HDMI. If CONFIG1 is below max 0.3*DP_PWR, then the cable adaptor is not present and DP++ will be DP.

If you want DP and HDMI output at the same time, then you can have a hub that has DP++ at its input, and simultaneous DP++ on the output.

Thanks

David

0 ramyakrishna kunala over 4 years ago in reply to David (ASIC) Liu

Prodigy 90 points

Thank you so much david. Is there any active mux in TI.

+1 David (ASIC) Liu over 4 years ago in reply to ramyakrishna kunala

TI__Guru**** 176811 points

Hi,

Unfortunately we do not have active MUX solution. You can use DP141 or DP142 as the DP++ redriver, and HD3SS214 or TS3DV642 as the passive MUX.

Thanks

David

0 ramyakrishna kunala over 4 years ago in reply to David (ASIC) Liu

Prodigy 90 points

okay, Thanks david

0 ramyakrishna kunala over 4 years ago in reply to David (ASIC) Liu

Prodigy 90 points

hi david, Doesn't SN75DP126 act as an active mux??

0 David (ASIC) Liu over 4 years ago in reply to ramyakrishna kunala

TI__Guru**** 176811 points

Hi,

The DP126 can only support up to DP1.2a and HDMI1.4b, will it meet your application need?

If yes, then you can use the DP126.

Thanks

David

+1 ramyakrishna kunala over 4 years ago in reply to David (ASIC) Liu

Prodigy 90 points

yes, DP and HDMI versions meets my application , but temperature range of IC (0 C to +70 C) is not sufficient for my application. Is there any IC like this in industrial temperature range ( -40 C to +85 C) ?

+1 David (ASIC) Liu over 4 years ago in reply to ramyakrishna kunala

TI__Guru**** 176811 points

Hi,

We do not have a part that can support temperature range from -40 to 85C.

Thanks

David

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SN75DP139: DP++ to DP and HDMI conversion