DP83822I: DP83822I

user6088224

Part Number: DP83822I
Other Parts Discussed in Thread: DP83TC811

hello e2e team, would you pls go through below schematic to check why it cannot link to PC, the crystal is working nomally.

PIN6/35 is floating, is it ok? what's the function of this two PINs? thank you.

TI以太网电路.pdf

over 6 years ago

0 Aniruddha Khadye over 6 years ago

TI__Mastermind 18425 points

Hi,

I see that this is a duplicate thread so I will close the old one and we can use this thread for further discussion. Also, you have tagged your issue as DP83822I but the schematic shows DP83TC811. Can you confirm which part is the issue related to? If it is DP83822I, then please send in the correct schematics.

-Regards

Aniruddha

0 user6088224 over 6 years ago in reply to Aniruddha Khadye

Prodigy 160 points

hi,

let's go with DP83TC811, and the schematic works. could you help ?

0 user4816270 over 6 years ago in reply to Aniruddha Khadye

Prodigy 40 points

0 user4816270 over 6 years ago in reply to Aniruddha Khadye

Prodigy 40 points

0 Aniruddha Khadye over 6 years ago in reply to user4816270

TI__Mastermind 18425 points

Hi,

Can you also send the magnetics connection? For the crystal, 10pF capacitors seem too low. What is the load capacitance value mentioned in the crystal datasheet? The general rule of thumb is to use capacitors almost twice the value mentioned in the crystal datasheet. For e.g., if crystal datasheet has load capacitance as 10pF then the circuit should used 18pF capacitors. Can you check in the crystal datasheet and increase the the capacitance if needed?

-Regards

Aniruddha

0 Aniruddha Khadye over 6 years ago in reply to Aniruddha Khadye

TI__Mastermind 18425 points

Hi,

I will close this thread for now. You can re-open the thread if you have more information.

-Regards

Aniruddha

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DP83822I: DP83822I