This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Original question:
TDP158: Looking for a redriver for HDMI2.0
Replies: 1
Views: 59
Part Number: TDP158
Hi Team,
What is the maximum trace length and trace impedance for below lines?
L1: GPU to cap
L2: Cap to TPD158
L3: TPD158 to HDMI connector
And any layout guides for TDP158?
Best regards,
Dylan
The DP158 equalizer can compensate up to 15.5dB loss on the input side. Please take a look at section 9.2.3 and you can see the DP158 is able to open up the eye after a 20in 4mil trace. On the connector side, it has a 3.5dB pre-emphasis.
Please take a look at the GPU and see if the GPU has a specific requirement on the differential impedance. If not, please follow the HDMI spec impedance of 100ohm +/- 15%.
Attached is the HDMI layout design guide.
5706.Texas Instruments HDMI Design Guide.pdf
Thanks
David