Do we have any product or app note on how to galvanically isolate HDMI/DVI signals?
TI makes no warranties and assumes no liability for applications assistance or customer product design. You are fully responsible for all design decisions and engineering with regard to your products, including decisions relating to application of TI products. By providing technical information, TI does not intend to offer or provide engineering services or advice concerning your designs.
In reply to Clemens Ladisch:
Thank you Clemens.
This is a standard 1080p 60Hz Full HD stream, to clarify.
Would you be able to elaborate some more on a possible solution and part number?
In reply to Carlos Silva85:
The ISO7820LL would be a two-channel LVDS isolator. (HDMI/DVI use four channels.)
TMDS uses current mode logic. I've found an application report (SCAA062) that shows how to interface CML and LVDS.
Thank you for your input on this matter.
I'm not really educated on this subject, so my understanding from the above is that HDMI uses TDMS, therefore a type of CML, which can then be converted to LVDS. Is my assumption correct?
Also, can you describe how to calculate the required bandwidth for an HDMI/DVI signal? I would assume this would only depend on the refresh rate and resolution, but perhaps I'm being overly simplistic.
Yes, CMS is the physical layer for TDMS.
According to Wikipedia (section "Refresh Frequency Limits at Various Resolutions"), 1080p at 60 Hz requires 3.2 Gbit/s, which corresponds to 800 Mbit/s on the four TDMS channels.
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.