DS90UB927Q-Q1: Power Over Coax

Vijay Balaji

Prodigy 130 points

Part Number: DS90UB927Q-Q1
Other Parts Discussed in Thread: DS90UB928Q

Hello,

Does DS90UB927Q and DS90UB928Q supports Power over COAX?

If supports, kindly share the POC schematic.

over 1 year ago

0 Ikram Haque over 1 year ago

TI__Mastermind 22830 points

Hi Vijay,

The DS90UB927 and DS90UB928 do not support coax configurations or Power-over-Coax.

They support only STP, so you could use STQ four-wire configuration or Power-over-Twisted pair similar to 913A EVM.

Best regards,
Ikram

0 Vijay Balaji over 1 year ago in reply to Ikram Haque

Prodigy 130 points

Hi Ikram,

Thanks for your reply.

In this four wire configuration, 2 wires is for signals and in the remaining 2 wires, can I use it for 12V and 3.3V i.e. can i transfer both voltages in this.

0 Ikram Haque over 1 year ago in reply to Vijay Balaji

TI__Mastermind 22830 points

Hi Vijay,

I will discuss with my team about STQ power over cable with my team and get back to you by Thursday.

Best regards,
Ikram

+1 Ikram Haque over 1 year ago in reply to Ikram Haque

TI__Mastermind 22830 points

Hi Vijay,

Yes you can use the STQ where you have
- 2 wires for differential pair signals
- 2 wires for 12V and 3.3V
- using the shielding as ground

We do not have a reference or recommendation for this specifically. So the customer should design and validate it themselves.

Best regards,
Ikram

0 Vijay Balaji over 1 year ago in reply to Ikram Haque

Prodigy 130 points

Hi Ikram,

Thank you for your support.

Interface

Interface forum

DS90UB927Q-Q1: Power Over Coax