TMDS171: Cable length

K.Hamamoto

Guru 12155 points

Part Number: TMDS171
Other Parts Discussed in Thread: TMDS181,

How much cable length this can support?

I could not find any related data on the datasheet.

Best Regards,

Koji Hamamoto

over 7 years ago

0 K.Hamamoto over 7 years ago

Guru 12155 points

In addition, I found some post related my question. At the post it is mentioned as below.

e2e.ti.com/.../2499855

>The TMDS181 and the DP159 have the same driver capabilities. The maximum range for HDMI 1.4B with redriver / retimer is 20-25M.

Regarding TMDS171, can we estimate the supported length is same as TMDS181?

Best Regards,
Koji Hamamoto

0 JMMN over 7 years ago in reply to K.Hamamoto

TI__Guru 60870 points

Yes, TMDS171 capabilities match those of the TMDS181 for HDMI 1.4B. The maximum cable length will also depend heavily upon cable gauge and quality.

Regards,
JMMN

0 Jesse Lee over 7 years ago in reply to JMMN

Expert 1985 points

Hello JMMN

what is the SPEC requirments of cable's wire when we use TMDS171 to drive over 20m??

Thanks a lot!

0 JMMN over 7 years ago in reply to Jesse Lee

TI__Guru 60870 points

Hi Jesse,

We recommend cables of 26AWG or lower to run distances over 20M.

Regards,
JMMN

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TMDS171: Cable length