Multilayer PCB Layout Design

This project calls for a clean, production-ready multilayer PCB for a multi-mic prototype card for use in development. The schematic is done and an initial attempt at component layout has been made, both in easyeda pro. schematic pdf attached. Due to clock and signal fan-out constraints, and power supply layout constraints, need help in completing the actual PCB design.

The board has 32 PDM microphones (x,y coordinates fixed) whose data are converted to TDM and sent off board via connector. The TDM clocks come in on the same connector. The board has a 3.3V buck-boost sourced with 5V from a battery connector. The 3.3V is used to power some ICs and is input to a 1.8V LDO for dual-powered ICs.

Please apply your preferred professional tool—Altium Designer, KiCad, or Eagle are all acceptable—as long as the final files are compatible with mainstream fabrication houses.

I am a DSP engineer and this is my first attempt at a PCB so please forgive any oversights and ignorance on my part.

Deliverables
• Finished board layout with complete layer stack definition
• Gerber, drill and pick-and-place files ready for fabrication
• Updated BoM reflecting any footprint-driven part changes
• Brief placement/routing notes so I can review the key decisions

I will review the initial placement first, then give the go-ahead for full routing. Let me know the estimated turnaround for each stage and any constraints you foresee.