How to control characteristic impedance in CCG3 displayport dongle design

Announcements

Live Webinar: USB-C adoption. Simple & Cost-efficient solutions | April 18th @9am or 5pm CEST. Register now !

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
duli_3411451
Level 1
Level 1
First like given

Now I design a type c to displayport  with CCG3 devices,and I use a 4:6 switch(parade:ps8742B) .

I'm not sure how to control the characteristic impedance of the SSRX1±、SSRX2±、SSTX1±、SSTX2± ,because these signals may carry usb_ss signal or

displayport signal, usb_ss signal characteristic impedance is usually controlled to 90ohm,whereas displayport is usually controlled to 100ohm.

0 Likes
1 Solution
ShifangZ_26
Moderator
Moderator
Moderator
10 likes given 250 sign-ins 1000 replies posted

Hi ,

Since you are going to transmit DisplayPort, you could use 100 ohm.

Best Regards,

Lisa

View solution in original post

0 Likes
1 Reply
ShifangZ_26
Moderator
Moderator
Moderator
10 likes given 250 sign-ins 1000 replies posted

Hi ,

Since you are going to transmit DisplayPort, you could use 100 ohm.

Best Regards,

Lisa

0 Likes