u/Clock-Significant

Image 1 — [review request] Portable headphone amp

Image 2 — [review request] Portable headphone amp

Image 3 — [review request] Portable headphone amp

Image 4 — [review request] Portable headphone amp

Image 5 — [review request] Portable headphone amp

Image 6 — [review request] Portable headphone amp

Image 7 — [review request] Portable headphone amp

Image 8 — [review request] Portable headphone amp

Image 9 — [review request] Portable headphone amp

▲ 6 r/PrintedCircuitBoard

[review request] Portable headphone amp

Hey everyone,

I’ve been working on cramming a high end, battery-powered headphone amplifier and DAC into a tiny 70x30mm portable footprint. The goal is a good noise floor, 100mW into a 32-ohm studio headphones, and power switching.

I’m feeling really confident about the schematic and just finished the PCB layout (images attached). Before I send this off to the fab, you lot take a look at it for me please

u/Clock-Significant — 2 days ago

▲ 6 r/PrintedCircuitBoard

New to high speed

Hello everyone,

I’ve been designing PCBs using KiCAD for several years now. Currently, I’m working on an advanced DSP board as a personal project, which requires external SRAM.

I’ve completed the dog bone connections for both the STM microcontroller and the SRAM, but I’m encountering difficulties with routing the signals properly.

I’m unsure what specific factors I should be paying attention to and feel a bit stuck on how to proceed. The board stack-up is finalized, and it’s an 8-layer design, so space isn’t a major constraint, but I’m still facing challenges.

Any advice or guidance would be greatly appreciated. Would it be helpful if I shared another post with pictures for more context?

Thank you in advance!

reddit.com

u/Clock-Significant — 11 days ago