Three common topologies:
| Domain | Typical Board Assignment | |--------|--------------------------| | High-speed digital (CPU, DDR) | Central processor board | | Analog front-end (ADC, op-amps) | Separate analog board | | Power regulation (buck/boost converters) | Power board or backplane | | User I/O (USB, Ethernet, display) | Interface carrier board | | High voltage / safety isolation | Dedicated isolated board | multi board system design
Design boards so they can be assembled in stages: Three common topologies: | Domain | Typical Board