DP83TC811S-Q1: Maximum output current on MDI pins for derating analysis

Hello Felix, 

Thank you for the query.

We test the MDI interface performance and provide the recommendations in the datasheet for the component selection. 

Can you please provide some additional details on the use case including 'we would like to use maximum current outputs for TRD_P and TRD_M'.

Regards,

Sreenivasa

Hi Sreenivasa,

Thank you for your response. We are using recommended components as per the datasheet. During our regular derating analysis, we have gaps for these components though, as the current itself is not specified in the datasheet. For completeness, we are looking if there are values for maximum current out of these pins. 

As described in the datasheet, the circuit we're analyzing includes a CMC in series  200uH (70mA), then two series caps at 100nF each, followed by the recommended RC filter of two 1k resistors connected to P and N and connected to GND via 100k in parallel to 4.7nF. 

Here are our schematics for this circuit:

Hello Felix, 

Thank you for the reply.

Let me check internally on how best we can support .I expect to have some updates on this early next week.

Regards,

Sreenivasa

Hello Felix, 

Thank you for waiting. I am still waiting for inputs. 

Regards,

Sreenivasa

Thank you, much appreciated

Hello Felix, 

Noted and will update you when i have some inputs.

Regards,

Sreenivasa

Hello Felix, 

This is the register we have for the line driver control. Does this help ?

LDG_CTRL1 Register 0x0401 – Line Driver Gain Control Register #1

Regards,

Sreenivasa

Hello Felix, 

Do you have some update. If not please click the resolved button to close the thread.

Regards,

Sreenivasa