Hi Team,
My customer has 4-lane MIPI interface in their products. They asked us to provide switch for 4 lane and 1 clock signal. We recommend TS3DV520. But they want a high speed for future compliance. I don't know if our TS3DV641/642 can meet this requirement.
TS3DV641/642 has 4 data lanes and some low-speed signal like SCL, SDA. Does this signal support high-speed? and does it support differential signal?
Thanks for your support
Michael
East China FAE
Michael,
For the TS3DV642:
Yes, all of the signals support high speed, including the SCL and SDA lines.
Yes, the TS3DV642 supports differential signals.
Please do no promote the TS3DV621 as the TS3DV642 is a meant to replace the TS3DV621 going forward. Please promote the TS3DV642.
Also, please note that due to the length of the wire on the SCL and SDA line, there is a propagation delay associated with these lines compared to the data lines.
Do you know specifically the signal type that will be transmitted through this switch?
Regards,
Jared
Michael,
I went through all of the MIPI specifications I could find. There was only one hard spec I could find for data-clock skew which was for Camera Serial Interfaces (CSI). The data-clock skew listed for CSI was 600 ps.
I also looked at Fairchild's MIPI switch (FSA641) to see what they had for skew specs. They had three skew values listed that meet/exceed the MIPI specifications.
If you look at the TS3DV642, you'll see that the skew times listed for our part are much better than that of Fairchild's part.
I know this doesn't specifically answer your question on MIPI's specs are for skew timing, but hopefully this is enough information.
Please let me know if you need any other information.
Regards,
Jared
