Power Entry Stage Design
Thought for 9 mins 41 sec
flux
Placed 45 component(s): R12, R11, TP20, J3, R2, J4, R35, R34, R36, TP19, R29, C31, TP17, C13, R37, TP2, R40, C14, TP27, R4, C27, R28, TP26, R5, D3, TP23, R13, R7, TP16, R33, R6, SW1, TP25, C15, TP18, TP5, C19, TP3, R10, C1, TP1, C12, TP4, J2, TP24
Thought for 4 sec
flux
Work done
- Refined PCB component placement only; no routing was performed.
- Floorplanned the SAR board per the constraints file: RF chain left in order
J3 → C19 → U7 → U8 → U6,U9nearU8, PLL filter parts besideU9, ADC center-left, FPGA centered, FT2232H/USB on the right, power along the top, and debug/test/LED/reset along the bottom. - Ran a focused cleanup pass to keep the crystal loop and power-entry/debug access from crowding while preserving the routing corridors.
- ✅ RF chain ordering and left-side RF isolation corridor are preserved.
- ✅ PLL filter remains immediately beside
U9, withU9close toU8for a short LO path. - ✅
U6is center-left and ADC bus series parts are betweenU6andU3for a straight bus channel. - ✅
U3remains centered with bus corridors preserved toward ADC on the left and FIFO/USB on the right. - ✅
U5andJ2are grouped on the right with USB support/ESD nearby. - ✅ Power and debug sections are assigned to the top and bottom edges respectively.
- ✅ Schematic connectivity was not changed and no PCB routing was created.
- Proceed with staged routing: RF first, then PLL/ADC clock, ADC bus, USB pair, FIFO bus, power, and finally debug/GPIO.
Run placement DRC
Tighten ADC corridor
Check unmet constraints
Export placement report
