PCB Design for Sawtooth VCO

flux

0:09

Work done
Success criteria review
  • ✅ Required active devices, precision resistors, NP0 timing capacitor, and rail decoupling are present in the design
  • ✅ Layout size is set to 100 mm x 50 mm and the board stackup is now 2-layer
  • ✅ BOM and netlist exports were generated
  • ❌ The 4 mounting holes were added in the schematic but have not yet been position-verified in the PCB
  • ❌ The detailed 2-layer routing plan is only partially implemented: the critical guidance is to keep the C1 / Q1 / Q2 high-impedance summing region compact, place U1 and the square-output path away from that node, route saw and square outputs separately, and use the bottom layer as a continuous ground reference, but actual placement optimization and routing verification still remain
Next steps Finish PCB placement by positioning the four mounting holes and analog core, then run airwire review and finalize the low-bleed routing strategy. I can continue with that next.
Create the VCO schematic
Set board constraints
Add required passives
Prioritize quiet layout
Generate BOM and reviews
11 days
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  • Ground
    Ground
    A common return path for electric current. Commonly known as ground.
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  • Generic Resistor
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  • Generic Capacitor
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    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
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  • Terminal
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Eurorack Sawtooth Core VCO

Eurorack Sawtooth Core VCO thumbnail
Professional Eurorack sawtooth-core VCO with discrete 2N3904/2N3906 exponential converter, TL072 square comparator, plus/minus 12 volt rails, precision passives, and a low-bleed 2-layer 100 mm by 50 mm layout.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor

Qty 1

Arrow

$0.56–$0.94

Digi-Key

$1.49–$4.84

LCSC

$1.46

Mouser

$2.12

TME

$2.04

Verical

$0.15–$0.76

Controls