Project Start
Thought for 6 sec
The schematic has materially progressed to 166 components and 150 electrical nets, including added support circuitry and cassette/audio routing. However, I cannot run the final ERC reconciliation or export the updated schematic because no ACUs remain.
Main ICs
- STM32H7A3VGT6 — main MCU/audio processor
- TLV320AIC3204 — stereo audio codec
- BM83SM1-00TB — Bluetooth audio module
- Si4735-D60-GU — FM/RDS receiver
- ADA4805-2 — cassette playback/record analog stages
- ADG884 — analog audio routing
- TPA6132A2 — headphone amplifier
- MP2624 — Li-ion charger/power path
- TPS63070 — 3.3 V buck-boost supply
- TPS7A2030 — low-noise analog supply
- TPS62825 — adjustable motor supply
- DRV8837 — erase-head driver
- LMC555 — bias oscillator
- LTC2954 + TPS22995 — pushbutton power control
Still required
- Run a fresh ERC and correct every remaining critical finding.
- Verify cassette EQ, recording level, bias current, and erase performance on physical hardware.
- Export the updated schematic PDF only after that check.
- PCB placement and routing have not been completed; existing Gerbers remain unusable.
Fix critical review issues
Plan PCB layout
Review BOM risks
Create bring-up plan
Document validation requirements
