DP83826I: Line drive mode

Shuhei Goto

Part Number: DP83826I
Other Parts Discussed in Thread: DP83822I

Hi team,

For the EtherCAT application, we can choose DP83826I or DP83822I.
Their mode ofr Line dricer are Voltage mode(826) and Current mode(822).

[Q1]
How should we differentiate between these (i.e., decide which one to use in each situation)?

[Q2]
Please tell me the pros and cons of each of them.

Best regards,
Goto

9 days ago

0 Gregory Kobyakov 8 days ago

TI__Genius 16550 points

Hi Goto-san,

The DP83826 has lower latency and power, while the DP83822 does support Fiber Ethernet, has a higher ESD rating, and operates up to 125C. We also offer the DP83826A, which a revision of the DP83826.

Best regards,

Greg

0 Shuhei Goto 8 days ago in reply to Gregory Kobyakov

TI__Expert 7610 points

Hi Greg,

Thank you for reply.

Are the differences you’re referring to caused by differences in the line driver mode?

Best regards,
Goto

0 Gregory Kobyakov 7 days ago in reply to Shuhei Goto

TI__Genius 16550 points

Hi Goto-san,

These differences are not caused by the driver mode.

Best regards,

Greg

0 Shuhei Goto 11 hours ago in reply to Gregory Kobyakov

TI__Expert 7610 points

Hi Greg,

Does the difference in line driver mode itself have any impact on the way PHY device operates?

Best regards,
Goto

0 Gregory Kobyakov 3 hours ago in reply to Shuhei Goto

TI__Genius 16550 points

Hi Goto-san,

No, the PHYs will have the same functionality regardless of the driver mode.

Best regards,

Greg

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DP83826I: Line drive mode