USB Sensor Node
Worked for 1 min 58 sec
Board is now set to a 100 × 80 mm, 4-layer stackup with internal GND and power planes. I’m placing the functional blocks next, keeping switching power away from the low-level DDS/analog path.
Worked for 7 mins 40 sec
Placement is complete: USB/power is grouped on the left/lower-left, DDS and low-level analog are central, and the output amplifier sits behind the right-edge BNC. I’m checking and tightening any remaining decoupling-placement issues now.
Worked for 15 mins 19 sec
Created a project doc
PCB Layout Review — Programmable Function Generator
Board outline set to 100 mm × 80 mm with 2 mm rounded corners. Stackup set to 4 copper layers for USB, SPI, analog output, and multi-rail po...
PCB layout placement is complete on a 100 × 80 mm, 4-layer board: USB/power is on the left, LT3471 power is lower-left, DDS/control/conditioning are central, and the THS3091/BNC output is on the right. I ran placement, DRC, and BOM checks; details are captured in PCB Layout Review.
Open items:
- Board is not routed yet, so airwires are expected.
- DRC still reports exposed-pad footprint copper overlap on U3, U6, and U10.
- Generic resistors/capacitors/inductors still need final orderable MPNs for assembly.
Suggested next steps:
- Repair or replace U3/U6/U10 exposed-pad footprints.
- Assign real MPNs/packages to generic passives and inductors.
- Route the PCB, then re-run full DRC.
Fix footprints and BOM
Fix footprint overlaps
Assign passive MPNs
Route the PCB
Run full checks
