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Fresuelectronics.com
1.6k members • Free
9 contributions to Fresuelectronics.com
Sep '24 •
Why manufacturer sometimes use pariticular AGND and PGND for DC/DC?
Hi everyone, Sometimes I see separate AGND and PGND in DC/DC converters. But I don't understand how to connect them at the PCB level. I would appreciate it if you don't just tell me to check the manufacturer's documentation—I always do that. I just want to understand if everyone knows/understands the advantage of having separate AGND and PGND. And how to connect them at the PCB level? w/o AGND https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MPM3811GG-Z/?srsltid=AfmBOookF4rTW-Cev4suQY-0b8prv1BsC_usN-_Mg8VFNHBYDLx4vN_h w/ AGND https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/NB685GQ/document_id/4378/
0 likes • Aug '25
@Amin Aghaei Do you have real comparison results? Or you could share, it would be very helpful? When AGND and PGND are split. When AGND and PGND are connected as one plane.
0 likes • Oct '25
@Dario Fresu Do you have any real comparison data between split and common grounds? I understand your point, but some people don’t believe it until they see actual results.
Aug '24 •
Is the layer stack-up from the manufacturer correct?
Dear community, I recently discovered a promising IC (USB HUB Controller, CCG6DF) for my project. However, I’ve noticed that the recommended layer stack-up provided may not be optimal. Please refer to the screenshot below for details. In your experience, should hardware designers strictly adhere to the datasheet recommendations, even if they seem less than ideal? Best Regards, Nazar Melnichek
Aug '24 •
PCB Design - Power Delivery Network (PDN) for Low EMI
My latest video on how to design the PDN for low EMI is out, and you can watch it here: https://youtu.be/5yUmlSl6JUI Please leave a like on the YouTube video, to continue supporting more free content ;) Enjoy! Dario
2 likes • Aug '24
Love it! Thanks 🙏
Jul '24 •
Is the ESP32 correctly placed on the board?
Dear community, Please let me know if I encounter any issues by placing the ESP32-WROOM-32UE in this specific location on the board. Best Regards, Nazar Melnichek
1 like • Jul '24
@Dario Fresu Thanks! I'm going to watch it!
Jul '24 •
Referance vias for diff pairs (Ethernet)
Hi everyone, Maybe someone knows. Is it necessary to place return reference vias for differential pairs? in my case is Ethernet. Best regards, Nazar
1 like • Jul '24
@Dario Fresu Thanks for the quick feedback! 🤝
1-9 of 9
@nazar-melnichek-5106
I’m Hardware Engineer, I like electronics engineering, PCB Design, debugging, soldering, embedded. Always trying to improve myself.
Active 177d ago
Joined Jun 22, 2024