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PCB Floorplan Constraints
Purpose
Capture PCB-level physical constraints derived from the product's industrial design, controls, display, battery option, and acoustic packaging.
Product Context
- Wood-look cabinet style
- Approximate overall product width: 220 mm
- Two front knobs
- Small center display
- Internal speaker-based audio output
- Rechargeable battery option
- WiFi and Bluetooth radios
Floorplanning Objectives
- Align electronics architecture with front-panel industrial design
- Preserve space for acoustic volume, battery, and mounting features
- Reduce interference between wireless, digital, power, and audio subsystems
- Support manufacturable PCB partitioning and serviceable assembly
Front-Panel Driven Constraints
Knobs
- Two front knobs define control-axis positions that likely require aligned encoder or potentiometer mounting points
- Shaft alignment and front-panel standoff geometry should be treated as fixed industrial-design references
- Control spacing should support comfortable hand interaction and visual symmetry
Display
- Small center display defines a fixed visual focal region on the front panel
- Display PCB area, connector orientation, and visibility window must be reserved early
- Backlighting, viewing angle, and bezel constraints must be considered in stackup and placement
Speaker Grille Region
- Speaker opening region must remain mechanically and visually compatible with the control layout
- PCB must not intrude into required acoustic cavity or grille support geometry
Internal Packaging Constraints
- Battery volume must be reserved independently from speaker magnet depth and enclosure bracing
- Main PCB should not block airflow or acoustic cavity function
- Connector placement for charging/programming/service should be compatible with enclosure assembly
Likely PCB Partitioning Strategy
- Main logic and wireless section
- Audio amplifier and speaker interface section
- Power and battery-management section
- Front-panel control/display interface section
EMI and Noise Constraints
- Keep wireless antenna region clear of metal, battery shielding, speaker magnets, and noisy switching power sections where practical
- Separate high-current amplifier and charging paths from sensitive RF and display signals
- Protect audio paths from switching noise and digital return-current contamination
Mechanical Constraints
- PCB mounting points must align with enclosure structure
- Front-panel components may require strict perpendicular alignment to the panel
- Cable paths between main PCB, speaker, battery, and display should avoid pinch points and visible assembly strain
Service and Assembly Constraints
- Display and front-control assembly should be straightforward to install
- Battery connection should be secure and assembly-friendly
- Speaker wiring and charging-port alignment should support repeatable manufacturing
Layout Planning Inputs for Execution
Execution should determine:
- Whether a single-board or split-board architecture is preferred
- Approximate PCB outline and maximum envelope
- Locations for display connector, battery connector, speaker output, charging input, and debug/programming access
- Antenna keepout zones and audio/power separation strategy
Open Decisions
- Single PCB versus main board plus front-panel daughterboard
- Exact display module size and mounting method
- Exact battery form factor and mounting orientation
- Mono versus stereo speaker packaging impact
- Final charging connector placement
Downstream Impact
This document informs:
- PCB setup
- Board outline decisions
- Component placement strategy
- Power and audio partitioning
- Mechanical integration review
Purpose
Product Context
Floorplanning Objectives
Front-Panel Driven Constraints
Knobs
Display
Speaker Grille Region
Internal Packaging Constraints
Likely PCB Partitioning Strategy
EMI and Noise Constraints
Mechanical Constraints
Service and Assembly Constraints
Layout Planning Inputs for Execution
Open Decisions
Downstream Impact