Hi Jeff,
The PFB part of the circuit looks good, assuming C116, C117, C118 are 0.1uF. I am also attaching the schematics of DP83848I-POE-EK for reference.
What voltage are you measuring near those pins 18,37, 23?
Regards, Rahul 5751.DP83848 POE schematic…
Hello Adrian,
Thank you for reply.
I have an additional question.
I think DP83848 is confirmed compliance test with EVM by TI.
When they use EVM for compliance test, which EVM should they use?
DP83848I-POE-EK or DP83848K-MAU-EK?
Or each EVM are OK for…
Part Number: DP83848K DP83848K
Hello,
My customer tested the 100 Base-TX, UTP Differential Output Voltage (+Vout/-Vout) with DP83848K-MAU-EK EVM.
But these results ware failed.
(Test result:)
+Vout: Trial 1 (Worst): 1.0670 V, Trial 4: 1.0667 V, Trial…
Hi Gerome,
thank you for suggested EVM. Unfortunately there are all out of stock at this moment. I need at least 3 pairs...
To add information I need following. It must be capable of etherCAT:
The PHYs have to comply with IEEE 802.3 100BaseTX or 100…
Part Number: DP83848YB Other Parts Discussed in Thread: DP83848I-MAU-EK I am having a problem daisy chaining two DP83848YB parts in a JTAG chain. I had problems on my board with my 6 device JTAG chain. I jumpered around the DP83848YB parts and everything…
Part Number: DP83848Q-Q1 Other Parts Discussed in Thread: DP83848I-POE-EK , DP83848I-MAU-EK , DP83848M , DP83848J , DP83848C , DP83848T , DP83848K , DP83848I , DP83848LFQ , DP83848VYB , DP83848H , DP83848YB [ DP83848 ] Packages on several EVMs
Hi, Can you help me to…
Hi Duncan,
Thank you for the wait. These are all the TIDA designs that the team could pull in regards to PoE.
PSE:
https://www.ti.com/tool/TIDA-00290
https://www.ti.com/tool/TIDA-00465
PD:
https://www.ti.com/tool/DP83848I-POE-EK
https://www.ti.com/tool…
Hi Vilem,
My feedback is that you should consider decoupling for your supply rails. I'd suggest using the DP83848I-MAU EVM as a reference design and only removing items from that schematic you are sure you do not need.
You also have connections…
Rush,
Just to confirm, are you using the DP83848I-MAU-EK board ( www.ti.com/.../dp83848i-mau-ek) Or is this a board of your design with the DP83848I and the PIC microprocessor co-located on the same board?
Also, could you clarify what you mean when…
Hi Anirudhha,
I sent the layout and schematic to your outlook address.
Recommend customer to take the layout of TI board as reference which shows good layout practices:
www.ti.com/.../snlc033
www.ti.com/.../snlr022
www.ti.com/.../DP83848I-MAU-EK …