DS90UB948-Q1: DS90UB940-Q1

Soar Kao

Part Number: DS90UB948-Q1

Hi Team,

Do we have the In-Vehicle-Infotainment (IVI) product that has Power-Over-Coax (PoC) features?

And the output should be LVDS or eDP.

0 Hamzeh Jaradat over 4 years ago

Hello Soar,

Yes, we have multiple products which can support Coax cable, such as 940, 941, 947, 948, 949 ...etc

The pair with oLDI Interface is the 947 - 948.

0 Soar Kao over 4 years ago in reply to Hamzeh Jaradat

Hello Hamzeh,

Thanks for your reply.

I know these product can support Coaxial cable, but it can support Power-Over-Coax (PoC) features?

0 Soar Kao over 4 years ago in reply to Soar Kao

As I understand, IVI product can support the coaxial cable but doesn't have POC feature.

And ADAS product can support POC. Products you listed are all IVI product.

If I misunderstand anything, feel free to point it out.

0 Hamzeh Jaradat over 4 years ago in reply to Soar Kao

Hello Soar,

you can use PoC with any Coax device. It does not matter if this is ADAS or IVI.

You just need to know the used frequency range and design your PoC filter accordingly!

0 Soar Kao over 4 years ago in reply to Hamzeh Jaradat

Hi Hamzeh,

Great!!!

To play it safe, the DS90UB948/940-Q1 datasheet doesn't specify the POC features, but it can achieve the POC. Am I right?

Thanks!

0 Hamzeh Jaradat over 4 years ago in reply to Soar Kao

This is correct.

As I said, depending on the used PCLK, you need to calculate the used frequency range for FC + BC and then design your PoC accordingly!

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